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[PATCH] ext4: rename ext4 symbols to avoid duplication of ext3 symbols 

Mingming Cao originally did this work, and Shaggy reproduced it using some
scripts from her.

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Mingming Cao 2006-10-11 01:20:53 -07:00 committed by Linus Torvalds
parent ac27a0ec11
commit 617ba13b31
26 changed files with 3219 additions and 3219 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
fs/ext4/Makefile
View File

@ -1,12 +1,12 @@
#
# Makefile for the linux ext3-filesystem routines.
# Makefile for the linux ext4-filesystem routines.
#
obj-$(CONFIG_EXT3_FS) += ext3.o
obj-$(CONFIG_EXT4DEV_FS) += ext4dev.o
ext3-y := balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o \
ext4dev-y := balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o \
ioctl.o namei.o super.o symlink.o hash.o resize.o
ext3-$(CONFIG_EXT3_FS_XATTR) += xattr.o xattr_user.o xattr_trusted.o
ext3-$(CONFIG_EXT3_FS_POSIX_ACL) += acl.o
ext3-$(CONFIG_EXT3_FS_SECURITY) += xattr_security.o
ext4dev-$(CONFIG_EXT4DEV_FS_XATTR) += xattr.o xattr_user.o xattr_trusted.o
ext4dev-$(CONFIG_EXT4DEV_FS_POSIX_ACL) += acl.o
ext4dev-$(CONFIG_EXT4DEV_FS_SECURITY) += xattr_security.o

188
fs/ext4/acl.c
View File

@ -1,5 +1,5 @@
/*
* linux/fs/ext3/acl.c
* linux/fs/ext4/acl.c
*
* Copyright (C) 2001-2003 Andreas Gruenbacher, <agruen@suse.de>
*/
@ -9,8 +9,8 @@
#include <linux/slab.h>
#include <linux/capability.h>
#include <linux/fs.h>
#include <linux/ext3_jbd.h>
#include <linux/ext3_fs.h>
#include <linux/ext4_jbd.h>
#include <linux/ext4_fs.h>
#include "xattr.h"
#include "acl.h"
@ -18,7 +18,7 @@
* Convert from filesystem to in-memory representation.
*/
static struct posix_acl *
ext3_acl_from_disk(const void *value, size_t size)
ext4_acl_from_disk(const void *value, size_t size)
{
const char *end = (char *)value + size;
int n, count;
@ -26,13 +26,13 @@ ext3_acl_from_disk(const void *value, size_t size)
if (!value)
return NULL;
if (size < sizeof(ext3_acl_header))
if (size < sizeof(ext4_acl_header))
return ERR_PTR(-EINVAL);
if (((ext3_acl_header *)value)->a_version !=
cpu_to_le32(EXT3_ACL_VERSION))
if (((ext4_acl_header *)value)->a_version !=
cpu_to_le32(EXT4_ACL_VERSION))
return ERR_PTR(-EINVAL);
value = (char *)value + sizeof(ext3_acl_header);
count = ext3_acl_count(size);
value = (char *)value + sizeof(ext4_acl_header);
count = ext4_acl_count(size);
if (count < 0)
return ERR_PTR(-EINVAL);
if (count == 0)
@ -41,9 +41,9 @@ ext3_acl_from_disk(const void *value, size_t size)
if (!acl)
return ERR_PTR(-ENOMEM);
for (n=0; n < count; n++) {
ext3_acl_entry *entry =
(ext3_acl_entry *)value;
if ((char *)value + sizeof(ext3_acl_entry_short) > end)
ext4_acl_entry *entry =
(ext4_acl_entry *)value;
if ((char *)value + sizeof(ext4_acl_entry_short) > end)
goto fail;
acl->a_entries[n].e_tag = le16_to_cpu(entry->e_tag);
acl->a_entries[n].e_perm = le16_to_cpu(entry->e_perm);
@ -53,13 +53,13 @@ ext3_acl_from_disk(const void *value, size_t size)
case ACL_MASK:
case ACL_OTHER:
value = (char *)value +
sizeof(ext3_acl_entry_short);
sizeof(ext4_acl_entry_short);
acl->a_entries[n].e_id = ACL_UNDEFINED_ID;
break;
case ACL_USER:
case ACL_GROUP:
value = (char *)value + sizeof(ext3_acl_entry);
value = (char *)value + sizeof(ext4_acl_entry);
if ((char *)value > end)
goto fail;
acl->a_entries[n].e_id =
@ -83,21 +83,21 @@ fail:
* Convert from in-memory to filesystem representation.
*/
static void *
ext3_acl_to_disk(const struct posix_acl *acl, size_t *size)
ext4_acl_to_disk(const struct posix_acl *acl, size_t *size)
{
ext3_acl_header *ext_acl;
ext4_acl_header *ext_acl;
char *e;
size_t n;
*size = ext3_acl_size(acl->a_count);
ext_acl = kmalloc(sizeof(ext3_acl_header) + acl->a_count *
sizeof(ext3_acl_entry), GFP_KERNEL);
*size = ext4_acl_size(acl->a_count);
ext_acl = kmalloc(sizeof(ext4_acl_header) + acl->a_count *
sizeof(ext4_acl_entry), GFP_KERNEL);
if (!ext_acl)
return ERR_PTR(-ENOMEM);
ext_acl->a_version = cpu_to_le32(EXT3_ACL_VERSION);
e = (char *)ext_acl + sizeof(ext3_acl_header);
ext_acl->a_version = cpu_to_le32(EXT4_ACL_VERSION);
e = (char *)ext_acl + sizeof(ext4_acl_header);
for (n=0; n < acl->a_count; n++) {
ext3_acl_entry *entry = (ext3_acl_entry *)e;
ext4_acl_entry *entry = (ext4_acl_entry *)e;
entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag);
entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm);
switch(acl->a_entries[n].e_tag) {
@ -105,14 +105,14 @@ ext3_acl_to_disk(const struct posix_acl *acl, size_t *size)
case ACL_GROUP:
entry->e_id =
cpu_to_le32(acl->a_entries[n].e_id);
e += sizeof(ext3_acl_entry);
e += sizeof(ext4_acl_entry);
break;
case ACL_USER_OBJ:
case ACL_GROUP_OBJ:
case ACL_MASK:
case ACL_OTHER:
e += sizeof(ext3_acl_entry_short);
e += sizeof(ext4_acl_entry_short);
break;
default:
@ -127,12 +127,12 @@ fail:
}
static inline struct posix_acl *
ext3_iget_acl(struct inode *inode, struct posix_acl **i_acl)
ext4_iget_acl(struct inode *inode, struct posix_acl **i_acl)
{
struct posix_acl *acl = EXT3_ACL_NOT_CACHED;
struct posix_acl *acl = EXT4_ACL_NOT_CACHED;
spin_lock(&inode->i_lock);
if (*i_acl != EXT3_ACL_NOT_CACHED)
if (*i_acl != EXT4_ACL_NOT_CACHED)
acl = posix_acl_dup(*i_acl);
spin_unlock(&inode->i_lock);
@ -140,11 +140,11 @@ ext3_iget_acl(struct inode *inode, struct posix_acl **i_acl)
}
static inline void
ext3_iset_acl(struct inode *inode, struct posix_acl **i_acl,
ext4_iset_acl(struct inode *inode, struct posix_acl **i_acl,
struct posix_acl *acl)
{
spin_lock(&inode->i_lock);
if (*i_acl != EXT3_ACL_NOT_CACHED)
if (*i_acl != EXT4_ACL_NOT_CACHED)
posix_acl_release(*i_acl);
*i_acl = posix_acl_dup(acl);
spin_unlock(&inode->i_lock);
@ -156,9 +156,9 @@ ext3_iset_acl(struct inode *inode, struct posix_acl **i_acl,
* inode->i_mutex: don't care
*/
static struct posix_acl *
ext3_get_acl(struct inode *inode, int type)
ext4_get_acl(struct inode *inode, int type)
{
struct ext3_inode_info *ei = EXT3_I(inode);
struct ext4_inode_info *ei = EXT4_I(inode);
int name_index;
char *value = NULL;
struct posix_acl *acl;
@ -169,31 +169,31 @@ ext3_get_acl(struct inode *inode, int type)
switch(type) {
case ACL_TYPE_ACCESS:
acl = ext3_iget_acl(inode, &ei->i_acl);
if (acl != EXT3_ACL_NOT_CACHED)
acl = ext4_iget_acl(inode, &ei->i_acl);
if (acl != EXT4_ACL_NOT_CACHED)
return acl;
name_index = EXT3_XATTR_INDEX_POSIX_ACL_ACCESS;
name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
break;
case ACL_TYPE_DEFAULT:
acl = ext3_iget_acl(inode, &ei->i_default_acl);
if (acl != EXT3_ACL_NOT_CACHED)
acl = ext4_iget_acl(inode, &ei->i_default_acl);
if (acl != EXT4_ACL_NOT_CACHED)
return acl;
name_index = EXT3_XATTR_INDEX_POSIX_ACL_DEFAULT;
name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT;
break;
default:
return ERR_PTR(-EINVAL);
}
retval = ext3_xattr_get(inode, name_index, "", NULL, 0);
retval = ext4_xattr_get(inode, name_index, "", NULL, 0);
if (retval > 0) {
value = kmalloc(retval, GFP_KERNEL);
if (!value)
return ERR_PTR(-ENOMEM);
retval = ext3_xattr_get(inode, name_index, "", value, retval);
retval = ext4_xattr_get(inode, name_index, "", value, retval);
}
if (retval > 0)
acl = ext3_acl_from_disk(value, retval);
acl = ext4_acl_from_disk(value, retval);
else if (retval == -ENODATA || retval == -ENOSYS)
acl = NULL;
else
@ -203,11 +203,11 @@ ext3_get_acl(struct inode *inode, int type)
if (!IS_ERR(acl)) {
switch(type) {
case ACL_TYPE_ACCESS:
ext3_iset_acl(inode, &ei->i_acl, acl);
ext4_iset_acl(inode, &ei->i_acl, acl);
break;
case ACL_TYPE_DEFAULT:
ext3_iset_acl(inode, &ei->i_default_acl, acl);
ext4_iset_acl(inode, &ei->i_default_acl, acl);
break;
}
}
@ -217,13 +217,13 @@ ext3_get_acl(struct inode *inode, int type)
/*
* Set the access or default ACL of an inode.
*
* inode->i_mutex: down unless called from ext3_new_inode
* inode->i_mutex: down unless called from ext4_new_inode
*/
static int
ext3_set_acl(handle_t *handle, struct inode *inode, int type,
ext4_set_acl(handle_t *handle, struct inode *inode, int type,
struct posix_acl *acl)
{
struct ext3_inode_info *ei = EXT3_I(inode);
struct ext4_inode_info *ei = EXT4_I(inode);
int name_index;
void *value = NULL;
size_t size = 0;
@ -234,7 +234,7 @@ ext3_set_acl(handle_t *handle, struct inode *inode, int type,
switch(type) {
case ACL_TYPE_ACCESS:
name_index = EXT3_XATTR_INDEX_POSIX_ACL_ACCESS;
name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
if (acl) {
mode_t mode = inode->i_mode;
error = posix_acl_equiv_mode(acl, &mode);
@ -242,7 +242,7 @@ ext3_set_acl(handle_t *handle, struct inode *inode, int type,
return error;
else {
inode->i_mode = mode;
ext3_mark_inode_dirty(handle, inode);
ext4_mark_inode_dirty(handle, inode);
if (error == 0)
acl = NULL;
}
@ -250,7 +250,7 @@ ext3_set_acl(handle_t *handle, struct inode *inode, int type,
break;
case ACL_TYPE_DEFAULT:
name_index = EXT3_XATTR_INDEX_POSIX_ACL_DEFAULT;
name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT;
if (!S_ISDIR(inode->i_mode))
return acl ? -EACCES : 0;
break;
@ -259,23 +259,23 @@ ext3_set_acl(handle_t *handle, struct inode *inode, int type,
return -EINVAL;
}
if (acl) {
value = ext3_acl_to_disk(acl, &size);
value = ext4_acl_to_disk(acl, &size);
if (IS_ERR(value))
return (int)PTR_ERR(value);
}
error = ext3_xattr_set_handle(handle, inode, name_index, "",
error = ext4_xattr_set_handle(handle, inode, name_index, "",
value, size, 0);
kfree(value);
if (!error) {
switch(type) {
case ACL_TYPE_ACCESS:
ext3_iset_acl(inode, &ei->i_acl, acl);
ext4_iset_acl(inode, &ei->i_acl, acl);
break;
case ACL_TYPE_DEFAULT:
ext3_iset_acl(inode, &ei->i_default_acl, acl);
ext4_iset_acl(inode, &ei->i_default_acl, acl);
break;
}
}
@ -283,9 +283,9 @@ ext3_set_acl(handle_t *handle, struct inode *inode, int type,
}
static int
ext3_check_acl(struct inode *inode, int mask)
ext4_check_acl(struct inode *inode, int mask)
{
struct posix_acl *acl = ext3_get_acl(inode, ACL_TYPE_ACCESS);
struct posix_acl *acl = ext4_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl))
return PTR_ERR(acl);
@ -299,26 +299,26 @@ ext3_check_acl(struct inode *inode, int mask)
}
int
ext3_permission(struct inode *inode, int mask, struct nameidata *nd)
ext4_permission(struct inode *inode, int mask, struct nameidata *nd)
{
return generic_permission(inode, mask, ext3_check_acl);
return generic_permission(inode, mask, ext4_check_acl);
}
/*
* Initialize the ACLs of a new inode. Called from ext3_new_inode.
* Initialize the ACLs of a new inode. Called from ext4_new_inode.
*
* dir->i_mutex: down
* inode->i_mutex: up (access to inode is still exclusive)
*/
int
ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
ext4_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
{
struct posix_acl *acl = NULL;
int error = 0;
if (!S_ISLNK(inode->i_mode)) {
if (test_opt(dir->i_sb, POSIX_ACL)) {
acl = ext3_get_acl(dir, ACL_TYPE_DEFAULT);
acl = ext4_get_acl(dir, ACL_TYPE_DEFAULT);
if (IS_ERR(acl))
return PTR_ERR(acl);
}
@ -330,7 +330,7 @@ ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
mode_t mode;
if (S_ISDIR(inode->i_mode)) {
error = ext3_set_acl(handle, inode,
error = ext4_set_acl(handle, inode,
ACL_TYPE_DEFAULT, acl);
if (error)
goto cleanup;
@ -346,7 +346,7 @@ ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
inode->i_mode = mode;
if (error > 0) {
/* This is an extended ACL */
error = ext3_set_acl(handle, inode,
error = ext4_set_acl(handle, inode,
ACL_TYPE_ACCESS, clone);
}
}
@ -372,7 +372,7 @@ cleanup:
* inode->i_mutex: down
*/
int
ext3_acl_chmod(struct inode *inode)
ext4_acl_chmod(struct inode *inode)
{
struct posix_acl *acl, *clone;
int error;
@ -381,7 +381,7 @@ ext3_acl_chmod(struct inode *inode)
return -EOPNOTSUPP;
if (!test_opt(inode->i_sb, POSIX_ACL))
return 0;
acl = ext3_get_acl(inode, ACL_TYPE_ACCESS);
acl = ext4_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
clone = posix_acl_clone(acl, GFP_KERNEL);
@ -394,17 +394,17 @@ ext3_acl_chmod(struct inode *inode)
int retries = 0;
retry:
handle = ext3_journal_start(inode,
EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
handle = ext4_journal_start(inode,
EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
if (IS_ERR(handle)) {
error = PTR_ERR(handle);
ext3_std_error(inode->i_sb, error);
ext4_std_error(inode->i_sb, error);
goto out;
}
error = ext3_set_acl(handle, inode, ACL_TYPE_ACCESS, clone);
ext3_journal_stop(handle);
error = ext4_set_acl(handle, inode, ACL_TYPE_ACCESS, clone);
ext4_journal_stop(handle);
if (error == -ENOSPC &&
ext3_should_retry_alloc(inode->i_sb, &retries))
ext4_should_retry_alloc(inode->i_sb, &retries))
goto retry;
}
out:
@ -416,7 +416,7 @@ out:
* Extended attribute handlers
*/
static size_t
ext3_xattr_list_acl_access(struct inode *inode, char *list, size_t list_len,
ext4_xattr_list_acl_access(struct inode *inode, char *list, size_t list_len,
const char *name, size_t name_len)
{
const size_t size = sizeof(POSIX_ACL_XATTR_ACCESS);
@ -429,7 +429,7 @@ ext3_xattr_list_acl_access(struct inode *inode, char *list, size_t list_len,
}
static size_t
ext3_xattr_list_acl_default(struct inode *inode, char *list, size_t list_len,
ext4_xattr_list_acl_default(struct inode *inode, char *list, size_t list_len,
const char *name, size_t name_len)
{
const size_t size = sizeof(POSIX_ACL_XATTR_DEFAULT);
@ -442,7 +442,7 @@ ext3_xattr_list_acl_default(struct inode *inode, char *list, size_t list_len,
}
static int
ext3_xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
ext4_xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
{
struct posix_acl *acl;
int error;
@ -450,7 +450,7 @@ ext3_xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
if (!test_opt(inode->i_sb, POSIX_ACL))
return -EOPNOTSUPP;
acl = ext3_get_acl(inode, type);
acl = ext4_get_acl(inode, type);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl == NULL)
@ -462,25 +462,25 @@ ext3_xattr_get_acl(struct inode *inode, int type, void *buffer, size_t size)
}
static int
ext3_xattr_get_acl_access(struct inode *inode, const char *name,
ext4_xattr_get_acl_access(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext3_xattr_get_acl(inode, ACL_TYPE_ACCESS, buffer, size);
return ext4_xattr_get_acl(inode, ACL_TYPE_ACCESS, buffer, size);
}
static int
ext3_xattr_get_acl_default(struct inode *inode, const char *name,
ext4_xattr_get_acl_default(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext3_xattr_get_acl(inode, ACL_TYPE_DEFAULT, buffer, size);
return ext4_xattr_get_acl(inode, ACL_TYPE_DEFAULT, buffer, size);
}
static int
ext3_xattr_set_acl(struct inode *inode, int type, const void *value,
ext4_xattr_set_acl(struct inode *inode, int type, const void *value,
size_t size)
{
handle_t *handle;
@ -505,12 +505,12 @@ ext3_xattr_set_acl(struct inode *inode, int type, const void *value,
acl = NULL;
retry:
handle = ext3_journal_start(inode, EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
handle = ext4_journal_start(inode, EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
error = ext3_set_acl(handle, inode, type, acl);
ext3_journal_stop(handle);
if (error == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries))
error = ext4_set_acl(handle, inode, type, acl);
ext4_journal_stop(handle);
if (error == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
goto retry;
release_and_out:
@ -519,33 +519,33 @@ release_and_out:
}
static int
ext3_xattr_set_acl_access(struct inode *inode, const char *name,
ext4_xattr_set_acl_access(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext3_xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size);
return ext4_xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size);
}
static int
ext3_xattr_set_acl_default(struct inode *inode, const char *name,
ext4_xattr_set_acl_default(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") != 0)
return -EINVAL;
return ext3_xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size);
return ext4_xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size);
}
struct xattr_handler ext3_xattr_acl_access_handler = {
struct xattr_handler ext4_xattr_acl_access_handler = {
.prefix = POSIX_ACL_XATTR_ACCESS,
.list = ext3_xattr_list_acl_access,
.get = ext3_xattr_get_acl_access,
.set = ext3_xattr_set_acl_access,
.list = ext4_xattr_list_acl_access,
.get = ext4_xattr_get_acl_access,
.set = ext4_xattr_set_acl_access,
};
struct xattr_handler ext3_xattr_acl_default_handler = {
struct xattr_handler ext4_xattr_acl_default_handler = {
.prefix = POSIX_ACL_XATTR_DEFAULT,
.list = ext3_xattr_list_acl_default,
.get = ext3_xattr_get_acl_default,
.set = ext3_xattr_set_acl_default,
.list = ext4_xattr_list_acl_default,
.get = ext4_xattr_get_acl_default,
.set = ext4_xattr_set_acl_default,
};

58
fs/ext4/acl.h
View File

@ -1,81 +1,81 @@
/*
File: fs/ext3/acl.h
File: fs/ext4/acl.h
(C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org>
*/
#include <linux/posix_acl_xattr.h>
#define EXT3_ACL_VERSION 0x0001
#define EXT4_ACL_VERSION 0x0001
typedef struct {
__le16 e_tag;
__le16 e_perm;
__le32 e_id;
} ext3_acl_entry;
} ext4_acl_entry;
typedef struct {
__le16 e_tag;
__le16 e_perm;
} ext3_acl_entry_short;
} ext4_acl_entry_short;
typedef struct {
__le32 a_version;
} ext3_acl_header;
} ext4_acl_header;
static inline size_t ext3_acl_size(int count)
static inline size_t ext4_acl_size(int count)
{
if (count <= 4) {
return sizeof(ext3_acl_header) +
count * sizeof(ext3_acl_entry_short);
return sizeof(ext4_acl_header) +
count * sizeof(ext4_acl_entry_short);
} else {
return sizeof(ext3_acl_header) +
4 * sizeof(ext3_acl_entry_short) +
(count - 4) * sizeof(ext3_acl_entry);
return sizeof(ext4_acl_header) +
4 * sizeof(ext4_acl_entry_short) +
(count - 4) * sizeof(ext4_acl_entry);
}
}
static inline int ext3_acl_count(size_t size)
static inline int ext4_acl_count(size_t size)
{
ssize_t s;
size -= sizeof(ext3_acl_header);
s = size - 4 * sizeof(ext3_acl_entry_short);
size -= sizeof(ext4_acl_header);
s = size - 4 * sizeof(ext4_acl_entry_short);
if (s < 0) {
if (size % sizeof(ext3_acl_entry_short))
if (size % sizeof(ext4_acl_entry_short))
return -1;
return size / sizeof(ext3_acl_entry_short);
return size / sizeof(ext4_acl_entry_short);
} else {
if (s % sizeof(ext3_acl_entry))
if (s % sizeof(ext4_acl_entry))
return -1;
return s / sizeof(ext3_acl_entry) + 4;
return s / sizeof(ext4_acl_entry) + 4;
}
}
#ifdef CONFIG_EXT3_FS_POSIX_ACL
#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
/* Value for inode->u.ext3_i.i_acl and inode->u.ext3_i.i_default_acl
/* Value for inode->u.ext4_i.i_acl and inode->u.ext4_i.i_default_acl
if the ACL has not been cached */
#define EXT3_ACL_NOT_CACHED ((void *)-1)
#define EXT4_ACL_NOT_CACHED ((void *)-1)
/* acl.c */
extern int ext3_permission (struct inode *, int, struct nameidata *);
extern int ext3_acl_chmod (struct inode *);
extern int ext3_init_acl (handle_t *, struct inode *, struct inode *);
extern int ext4_permission (struct inode *, int, struct nameidata *);
extern int ext4_acl_chmod (struct inode *);
extern int ext4_init_acl (handle_t *, struct inode *, struct inode *);
#else /* CONFIG_EXT3_FS_POSIX_ACL */
#else /* CONFIG_EXT4DEV_FS_POSIX_ACL */
#include <linux/sched.h>
#define ext3_permission NULL
#define ext4_permission NULL
static inline int
ext3_acl_chmod(struct inode *inode)
ext4_acl_chmod(struct inode *inode)
{
return 0;
}
static inline int
ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
ext4_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
{
return 0;
}
#endif /* CONFIG_EXT3_FS_POSIX_ACL */
#endif /* CONFIG_EXT4DEV_FS_POSIX_ACL */

536
fs/ext4/balloc.c
View File

File diff suppressed because it is too large Load Diff

10
fs/ext4/bitmap.c
View File

@ -1,5 +1,5 @@
/*
* linux/fs/ext3/bitmap.c
* linux/fs/ext4/bitmap.c
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
@ -9,13 +9,13 @@
#include <linux/buffer_head.h>
#include <linux/jbd.h>
#include <linux/ext3_fs.h>
#include <linux/ext4_fs.h>
#ifdef EXT3FS_DEBUG
#ifdef EXT4FS_DEBUG
static int nibblemap[] = {4, 3, 3, 2, 3, 2, 2, 1, 3, 2, 2, 1, 2, 1, 1, 0};
unsigned long ext3_count_free (struct buffer_head * map, unsigned int numchars)
unsigned long ext4_count_free (struct buffer_head * map, unsigned int numchars)
{
unsigned int i;
unsigned long sum = 0;
@ -28,5 +28,5 @@ unsigned long ext3_count_free (struct buffer_head * map, unsigned int numchars)
return (sum);
}
#endif /* EXT3FS_DEBUG */
#endif /* EXT4FS_DEBUG */

102
fs/ext4/dir.c
View File

@ -1,5 +1,5 @@
/*
* linux/fs/ext3/dir.c
* linux/fs/ext4/dir.c
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
@ -12,7 +12,7 @@
*
* Copyright (C) 1991, 1992 Linus Torvalds
*
* ext3 directory handling functions
* ext4 directory handling functions
*
* Big-endian to little-endian byte-swapping/bitmaps by
* David S. Miller (davem@caip.rutgers.edu), 1995
@ -23,69 +23,69 @@
#include <linux/fs.h>
#include <linux/jbd.h>
#include <linux/ext3_fs.h>
#include <linux/ext4_fs.h>
#include <linux/buffer_head.h>
#include <linux/smp_lock.h>
#include <linux/slab.h>
#include <linux/rbtree.h>
static unsigned char ext3_filetype_table[] = {
static unsigned char ext4_filetype_table[] = {
DT_UNKNOWN, DT_REG, DT_DIR, DT_CHR, DT_BLK, DT_FIFO, DT_SOCK, DT_LNK
};
static int ext3_readdir(struct file *, void *, filldir_t);
static int ext3_dx_readdir(struct file * filp,
static int ext4_readdir(struct file *, void *, filldir_t);
static int ext4_dx_readdir(struct file * filp,
void * dirent, filldir_t filldir);
static int ext3_release_dir (struct inode * inode,
static int ext4_release_dir (struct inode * inode,
struct file * filp);
const struct file_operations ext3_dir_operations = {
const struct file_operations ext4_dir_operations = {
.llseek = generic_file_llseek,
.read = generic_read_dir,
.readdir = ext3_readdir, /* we take BKL. needed?*/
.ioctl = ext3_ioctl, /* BKL held */
.readdir = ext4_readdir, /* we take BKL. needed?*/
.ioctl = ext4_ioctl, /* BKL held */
#ifdef CONFIG_COMPAT
.compat_ioctl = ext3_compat_ioctl,
.compat_ioctl = ext4_compat_ioctl,
#endif
.fsync = ext3_sync_file, /* BKL held */
#ifdef CONFIG_EXT3_INDEX
.release = ext3_release_dir,
.fsync = ext4_sync_file, /* BKL held */
#ifdef CONFIG_EXT4_INDEX
.release = ext4_release_dir,
#endif
};
static unsigned char get_dtype(struct super_block *sb, int filetype)
{
if (!EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_FILETYPE) ||
(filetype >= EXT3_FT_MAX))
if (!EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_FILETYPE) ||
(filetype >= EXT4_FT_MAX))
return DT_UNKNOWN;
return (ext3_filetype_table[filetype]);
return (ext4_filetype_table[filetype]);
}
int ext3_check_dir_entry (const char * function, struct inode * dir,
struct ext3_dir_entry_2 * de,
int ext4_check_dir_entry (const char * function, struct inode * dir,
struct ext4_dir_entry_2 * de,
struct buffer_head * bh,
unsigned long offset)
{
const char * error_msg = NULL;
const int rlen = le16_to_cpu(de->rec_len);
if (rlen < EXT3_DIR_REC_LEN(1))
if (rlen < EXT4_DIR_REC_LEN(1))
error_msg = "rec_len is smaller than minimal";
else if (rlen % 4 != 0)
error_msg = "rec_len % 4 != 0";
else if (rlen < EXT3_DIR_REC_LEN(de->name_len))
else if (rlen < EXT4_DIR_REC_LEN(de->name_len))
error_msg = "rec_len is too small for name_len";
else if (((char *) de - bh->b_data) + rlen > dir->i_sb->s_blocksize)
error_msg = "directory entry across blocks";
else if (le32_to_cpu(de->inode) >
le32_to_cpu(EXT3_SB(dir->i_sb)->s_es->s_inodes_count))
le32_to_cpu(EXT4_SB(dir->i_sb)->s_es->s_inodes_count))
error_msg = "inode out of bounds";
if (error_msg != NULL)
ext3_error (dir->i_sb, function,
ext4_error (dir->i_sb, function,
"bad entry in directory #%lu: %s - "
"offset=%lu, inode=%lu, rec_len=%d, name_len=%d",
dir->i_ino, error_msg, offset,
@ -94,13 +94,13 @@ int ext3_check_dir_entry (const char * function, struct inode * dir,
return error_msg == NULL ? 1 : 0;
}
static int ext3_readdir(struct file * filp,
static int ext4_readdir(struct file * filp,
void * dirent, filldir_t filldir)
{
int error = 0;
unsigned long offset;
int i, stored;
struct ext3_dir_entry_2 *de;
struct ext4_dir_entry_2 *de;
struct super_block *sb;
int err;
struct inode *inode = filp->f_dentry->d_inode;
@ -108,12 +108,12 @@ static int ext3_readdir(struct file * filp,
sb = inode->i_sb;
#ifdef CONFIG_EXT3_INDEX
if (EXT3_HAS_COMPAT_FEATURE(inode->i_sb,
EXT3_FEATURE_COMPAT_DIR_INDEX) &&
((EXT3_I(inode)->i_flags & EXT3_INDEX_FL) ||
#ifdef CONFIG_EXT4_INDEX
if (EXT4_HAS_COMPAT_FEATURE(inode->i_sb,
EXT4_FEATURE_COMPAT_DIR_INDEX) &&
((EXT4_I(inode)->i_flags & EXT4_INDEX_FL) ||
((inode->i_size >> sb->s_blocksize_bits) == 1))) {
err = ext3_dx_readdir(filp, dirent, filldir);
err = ext4_dx_readdir(filp, dirent, filldir);
if (err != ERR_BAD_DX_DIR) {
ret = err;
goto out;
@ -122,19 +122,19 @@ static int ext3_readdir(struct file * filp,
* We don't set the inode dirty flag since it's not
* critical that it get flushed back to the disk.
*/
EXT3_I(filp->f_dentry->d_inode)->i_flags &= ~EXT3_INDEX_FL;
EXT4_I(filp->f_dentry->d_inode)->i_flags &= ~EXT4_INDEX_FL;
}
#endif
stored = 0;
offset = filp->f_pos & (sb->s_blocksize - 1);
while (!error && !stored && filp->f_pos < inode->i_size) {
unsigned long blk = filp->f_pos >> EXT3_BLOCK_SIZE_BITS(sb);
unsigned long blk = filp->f_pos >> EXT4_BLOCK_SIZE_BITS(sb);
struct buffer_head map_bh;
struct buffer_head *bh = NULL;
map_bh.b_state = 0;
err = ext3_get_blocks_handle(NULL, inode, blk, 1,
err = ext4_get_blocks_handle(NULL, inode, blk, 1,
&map_bh, 0, 0);
if (err > 0) {
page_cache_readahead(sb->s_bdev->bd_inode->i_mapping,
@ -143,7 +143,7 @@ static int ext3_readdir(struct file * filp,
map_bh.b_blocknr >>
(PAGE_CACHE_SHIFT - inode->i_blkbits),
1);
bh = ext3_bread(NULL, inode, blk, 0, &err);
bh = ext4_bread(NULL, inode, blk, 0, &err);
}
/*
@ -151,7 +151,7 @@ static int ext3_readdir(struct file * filp,
* of recovering data when there's a bad sector
*/
if (!bh) {
ext3_error (sb, "ext3_readdir",
ext4_error (sb, "ext4_readdir",
"directory #%lu contains a hole at offset %lu",
inode->i_ino, (unsigned long)filp->f_pos);
filp->f_pos += sb->s_blocksize - offset;
@ -165,7 +165,7 @@ revalidate:
* to make sure. */
if (filp->f_version != inode->i_version) {
for (i = 0; i < sb->s_blocksize && i < offset; ) {
de = (struct ext3_dir_entry_2 *)
de = (struct ext4_dir_entry_2 *)
(bh->b_data + i);
/* It's too expensive to do a full
* dirent test each time round this
@ -174,7 +174,7 @@ revalidate:
* failure will be detected in the
* dirent test below. */
if (le16_to_cpu(de->rec_len) <
EXT3_DIR_REC_LEN(1))
EXT4_DIR_REC_LEN(1))
break;
i += le16_to_cpu(de->rec_len);
}
@ -186,8 +186,8 @@ revalidate:
while (!error && filp->f_pos < inode->i_size
&& offset < sb->s_blocksize) {
de = (struct ext3_dir_entry_2 *) (bh->b_data + offset);
if (!ext3_check_dir_entry ("ext3_readdir", inode, de,
de = (struct ext4_dir_entry_2 *) (bh->b_data + offset);
if (!ext4_check_dir_entry ("ext4_readdir", inode, de,
bh, offset)) {
/* On error, skip the f_pos to the
next block. */
@ -228,7 +228,7 @@ out:
return ret;
}
#ifdef CONFIG_EXT3_INDEX
#ifdef CONFIG_EXT4_INDEX
/*
* These functions convert from the major/minor hash to an f_pos
* value.
@ -323,7 +323,7 @@ static struct dir_private_info *create_dir_info(loff_t pos)
return p;
}
void ext3_htree_free_dir_info(struct dir_private_info *p)
void ext4_htree_free_dir_info(struct dir_private_info *p)
{
free_rb_tree_fname(&p->root);
kfree(p);
@ -332,9 +332,9 @@ void ext3_htree_free_dir_info(struct dir_private_info *p)
/*
* Given a directory entry, enter it into the fname rb tree.
*/
int ext3_htree_store_dirent(struct file *dir_file, __u32 hash,
int ext4_htree_store_dirent(struct file *dir_file, __u32 hash,
__u32 minor_hash,
struct ext3_dir_entry_2 *dirent)
struct ext4_dir_entry_2 *dirent)
{
struct rb_node **p, *parent = NULL;
struct fname * fname, *new_fn;
@ -390,7 +390,7 @@ int ext3_htree_store_dirent(struct file *dir_file, __u32 hash,
/*
* This is a helper function for ext3_dx_readdir. It calls filldir
* This is a helper function for ext4_dx_readdir. It calls filldir
* for all entres on the fname linked list. (Normally there is only
* one entry on the linked list, unless there are 62 bit hash collisions.)
*/
@ -425,7 +425,7 @@ static int call_filldir(struct file * filp, void * dirent,
return 0;
}
static int ext3_dx_readdir(struct file * filp,
static int ext4_dx_readdir(struct file * filp,
void * dirent, filldir_t filldir)
{
struct dir_private_info *info = filp->private_data;
@ -440,7 +440,7 @@ static int ext3_dx_readdir(struct file * filp,
filp->private_data = info;
}
if (filp->f_pos == EXT3_HTREE_EOF)
if (filp->f_pos == EXT4_HTREE_EOF)
return 0; /* EOF */
/* Some one has messed with f_pos; reset the world */
@ -474,13 +474,13 @@ static int ext3_dx_readdir(struct file * filp,
info->curr_node = NULL;
free_rb_tree_fname(&info->root);
filp->f_version = inode->i_version;
ret = ext3_htree_fill_tree(filp, info->curr_hash,
ret = ext4_htree_fill_tree(filp, info->curr_hash,
info->curr_minor_hash,
&info->next_hash);
if (ret < 0)
return ret;
if (ret == 0) {
filp->f_pos = EXT3_HTREE_EOF;
filp->f_pos = EXT4_HTREE_EOF;
break;
}
info->curr_node = rb_first(&info->root);
@ -495,7 +495,7 @@ static int ext3_dx_readdir(struct file * filp,
info->curr_node = rb_next(info->curr_node);
if (!info->curr_node) {
if (info->next_hash == ~0) {
filp->f_pos = EXT3_HTREE_EOF;
filp->f_pos = EXT4_HTREE_EOF;
break;
}
info->curr_hash = info->next_hash;
@ -507,10 +507,10 @@ finished:
return 0;
}
static int ext3_release_dir (struct inode * inode, struct file * filp)
static int ext4_release_dir (struct inode * inode, struct file * filp)
{
if (filp->private_data)
ext3_htree_free_dir_info(filp->private_data);
ext4_htree_free_dir_info(filp->private_data);
return 0;
}

50
fs/ext4/file.c
View File

@ -1,5 +1,5 @@
/*
* linux/fs/ext3/file.c
* linux/fs/ext4/file.c
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
@ -12,7 +12,7 @@
*
* Copyright (C) 1991, 1992 Linus Torvalds
*
* ext3 fs regular file handling primitives
* ext4 fs regular file handling primitives
*
* 64-bit file support on 64-bit platforms by Jakub Jelinek
* (jj@sunsite.ms.mff.cuni.cz)
@ -21,34 +21,34 @@
#include <linux/time.h>
#include <linux/fs.h>
#include <linux/jbd.h>
#include <linux/ext3_fs.h>
#include <linux/ext3_jbd.h>
#include <linux/ext4_fs.h>
#include <linux/ext4_jbd.h>
#include "xattr.h"
#include "acl.h"
/*
* Called when an inode is released. Note that this is different
* from ext3_file_open: open gets called at every open, but release
* from ext4_file_open: open gets called at every open, but release
* gets called only when /all/ the files are closed.
*/
static int ext3_release_file (struct inode * inode, struct file * filp)
static int ext4_release_file (struct inode * inode, struct file * filp)
{
/* if we are the last writer on the inode, drop the block reservation */
if ((filp->f_mode & FMODE_WRITE) &&
(atomic_read(&inode->i_writecount) == 1))
{
mutex_lock(&EXT3_I(inode)->truncate_mutex);
ext3_discard_reservation(inode);
mutex_unlock(&EXT3_I(inode)->truncate_mutex);
mutex_lock(&EXT4_I(inode)->truncate_mutex);
ext4_discard_reservation(inode);
mutex_unlock(&EXT4_I(inode)->truncate_mutex);
}
if (is_dx(inode) && filp->private_data)
ext3_htree_free_dir_info(filp->private_data);
ext4_htree_free_dir_info(filp->private_data);
return 0;
}
static ssize_t
ext3_file_write(struct kiocb *iocb, const struct iovec *iov,
ext4_file_write(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
struct file *file = iocb->ki_filp;
@ -79,7 +79,7 @@ ext3_file_write(struct kiocb *iocb, const struct iovec *iov,
* Open question --- do we care about flushing timestamps too
* if the inode is IS_SYNC?
*/
if (!ext3_should_journal_data(inode))
if (!ext4_should_journal_data(inode))
return ret;
goto force_commit;
@ -100,40 +100,40 @@ ext3_file_write(struct kiocb *iocb, const struct iovec *iov,
*/
force_commit:
err = ext3_force_commit(inode->i_sb);
err = ext4_force_commit(inode->i_sb);
if (err)
return err;
return ret;
}
const struct file_operations ext3_file_operations = {
const struct file_operations ext4_file_operations = {
.llseek = generic_file_llseek,
.read = do_sync_read,
.write = do_sync_write,
.aio_read = generic_file_aio_read,
.aio_write = ext3_file_write,
.ioctl = ext3_ioctl,
.aio_write = ext4_file_write,
.ioctl = ext4_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = ext3_compat_ioctl,
.compat_ioctl = ext4_compat_ioctl,
#endif
.mmap = generic_file_mmap,
.open = generic_file_open,
.release = ext3_release_file,
.fsync = ext3_sync_file,
.release = ext4_release_file,
.fsync = ext4_sync_file,
.sendfile = generic_file_sendfile,
.splice_read = generic_file_splice_read,
.splice_write = generic_file_splice_write,
};
struct inode_operations ext3_file_inode_operations = {
.truncate = ext3_truncate,
.setattr = ext3_setattr,
#ifdef CONFIG_EXT3_FS_XATTR
struct inode_operations ext4_file_inode_operations = {
.truncate = ext4_truncate,
.setattr = ext4_setattr,
#ifdef CONFIG_EXT4DEV_FS_XATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
.listxattr = ext3_listxattr,
.listxattr = ext4_listxattr,
.removexattr = generic_removexattr,
#endif
.permission = ext3_permission,
.permission = ext4_permission,
};

20
fs/ext4/fsync.c
View File

@ -1,5 +1,5 @@
/*
* linux/fs/ext3/fsync.c
* linux/fs/ext4/fsync.c
*
* Copyright (C) 1993 Stephen Tweedie (sct@redhat.com)
* from
@ -9,7 +9,7 @@
* from
* linux/fs/minix/truncate.c Copyright (C) 1991, 1992 Linus Torvalds
*
* ext3fs fsync primitive
* ext4fs fsync primitive
*
* Big-endian to little-endian byte-swapping/bitmaps by
* David S. Miller (davem@caip.rutgers.edu), 1995
@ -27,11 +27,11 @@
#include <linux/sched.h>
#include <linux/writeback.h>
#include <linux/jbd.h>
#include <linux/ext3_fs.h>
#include <linux/ext3_jbd.h>
#include <linux/ext4_fs.h>
#include <linux/ext4_jbd.h>
/*
* akpm: A new design for ext3_sync_file().
* akpm: A new design for ext4_sync_file().
*
* This is only called from sys_fsync(), sys_fdatasync() and sys_msync().
* There cannot be a transaction open by this task.
@ -42,12 +42,12 @@
* inode to disk.
*/
int ext3_sync_file(struct file * file, struct dentry *dentry, int datasync)
int ext4_sync_file(struct file * file, struct dentry *dentry, int datasync)
{
struct inode *inode = dentry->d_inode;
int ret = 0;
J_ASSERT(ext3_journal_current_handle() == 0);
J_ASSERT(ext4_journal_current_handle() == 0);
/*
* data=writeback:
@ -61,14 +61,14 @@ int ext3_sync_file(struct file * file, struct dentry *dentry, int datasync)
*
* data=journal:
* filemap_fdatawrite won't do anything (the buffers are clean).
* ext3_force_commit will write the file data into the journal and
* ext4_force_commit will write the file data into the journal and
* will wait on that.
* filemap_fdatawait() will encounter a ton of newly-dirtied pages
* (they were dirtied by commit). But that's OK - the blocks are
* safe in-journal, which is all fsync() needs to ensure.
*/
if (ext3_should_journal_data(inode)) {
ret = ext3_force_commit(inode->i_sb);
if (ext4_should_journal_data(inode)) {
ret = ext4_force_commit(inode->i_sb);
goto out;
}

10
fs/ext4/hash.c
View File

@ -1,5 +1,5 @@
/*
* linux/fs/ext3/hash.c
* linux/fs/ext4/hash.c
*
* Copyright (C) 2002 by Theodore Ts'o
*
@ -12,7 +12,7 @@
#include <linux/fs.h>
#include <linux/jbd.h>
#include <linux/sched.h>
#include <linux/ext3_fs.h>
#include <linux/ext4_fs.h>
#include <linux/cryptohash.h>
#define DELTA 0x9E3779B9
@ -89,7 +89,7 @@ static void str2hashbuf(const char *msg, int len, __u32 *buf, int num)
* represented, and whether or not the returned hash is 32 bits or 64
* bits. 32 bit hashes will return 0 for the minor hash.
*/
int ext3fs_dirhash(const char *name, int len, struct dx_hash_info *hinfo)
int ext4fs_dirhash(const char *name, int len, struct dx_hash_info *hinfo)
{
__u32 hash;
__u32 minor_hash = 0;
@ -144,8 +144,8 @@ int ext3fs_dirhash(const char *name, int len, struct dx_hash_info *hinfo)
return -1;
}
hash = hash & ~1;
if (hash == (EXT3_HTREE_EOF << 1))
hash = (EXT3_HTREE_EOF-1) << 1;
if (hash == (EXT4_HTREE_EOF << 1))
hash = (EXT4_HTREE_EOF-1) << 1;
hinfo->hash = hash;
hinfo->minor_hash = minor_hash;
return 0;

230
fs/ext4/ialloc.c
View File

@ -1,5 +1,5 @@
/*
* linux/fs/ext3/ialloc.c
* linux/fs/ext4/ialloc.c
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
@ -15,8 +15,8 @@
#include <linux/time.h>
#include <linux/fs.h>
#include <linux/jbd.h>
#include <linux/ext3_fs.h>
#include <linux/ext3_jbd.h>
#include <linux/ext4_fs.h>
#include <linux/ext4_jbd.h>
#include <linux/stat.h>
#include <linux/string.h>
#include <linux/quotaops.h>
@ -53,16 +53,16 @@
static struct buffer_head *
read_inode_bitmap(struct super_block * sb, unsigned long block_group)
{
struct ext3_group_desc *desc;
struct ext4_group_desc *desc;
struct buffer_head *bh = NULL;
desc = ext3_get_group_desc(sb, block_group, NULL);
desc = ext4_get_group_desc(sb, block_group, NULL);
if (!desc)
goto error_out;
bh = sb_bread(sb, le32_to_cpu(desc->bg_inode_bitmap));
if (!bh)
ext3_error(sb, "read_inode_bitmap",
ext4_error(sb, "read_inode_bitmap",
"Cannot read inode bitmap - "
"block_group = %lu, inode_bitmap = %u",
block_group, le32_to_cpu(desc->bg_inode_bitmap));
@ -86,7 +86,7 @@ error_out:
* though), and then we'd have two inodes sharing the
* same inode number and space on the harddisk.
*/
void ext3_free_inode (handle_t *handle, struct inode * inode)
void ext4_free_inode (handle_t *handle, struct inode * inode)
{
struct super_block * sb = inode->i_sb;
int is_directory;
@ -95,36 +95,36 @@ void ext3_free_inode (handle_t *handle, struct inode * inode)
struct buffer_head *bh2;
unsigned long block_group;
unsigned long bit;
struct ext3_group_desc * gdp;
struct ext3_super_block * es;
struct ext3_sb_info *sbi;
struct ext4_group_desc * gdp;
struct ext4_super_block * es;
struct ext4_sb_info *sbi;
int fatal = 0, err;
if (atomic_read(&inode->i_count) > 1) {
printk ("ext3_free_inode: inode has count=%d\n",
printk ("ext4_free_inode: inode has count=%d\n",
atomic_read(&inode->i_count));
return;
}
if (inode->i_nlink) {
printk ("ext3_free_inode: inode has nlink=%d\n",
printk ("ext4_free_inode: inode has nlink=%d\n",
inode->i_nlink);
return;
}
if (!sb) {
printk("ext3_free_inode: inode on nonexistent device\n");
printk("ext4_free_inode: inode on nonexistent device\n");
return;
}
sbi = EXT3_SB(sb);
sbi = EXT4_SB(sb);
ino = inode->i_ino;
ext3_debug ("freeing inode %lu\n", ino);
ext4_debug ("freeing inode %lu\n", ino);
/*
* Note: we must free any quota before locking the superblock,
* as writing the quota to disk may need the lock as well.
*/
DQUOT_INIT(inode);
ext3_xattr_delete_inode(handle, inode);
ext4_xattr_delete_inode(handle, inode);
DQUOT_FREE_INODE(inode);
DQUOT_DROP(inode);
@ -133,33 +133,33 @@ void ext3_free_inode (handle_t *handle, struct inode * inode)
/* Do this BEFORE marking the inode not in use or returning an error */
clear_inode (inode);
es = EXT3_SB(sb)->s_es;
if (ino < EXT3_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
ext3_error (sb, "ext3_free_inode",
es = EXT4_SB(sb)->s_es;
if (ino < EXT4_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
ext4_error (sb, "ext4_free_inode",
"reserved or nonexistent inode %lu", ino);
goto error_return;
}
block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
bit = (ino - 1) % EXT3_INODES_PER_GROUP(sb);
block_group = (ino - 1) / EXT4_INODES_PER_GROUP(sb);
bit = (ino - 1) % EXT4_INODES_PER_GROUP(sb);
bitmap_bh = read_inode_bitmap(sb, block_group);
if (!bitmap_bh)
goto error_return;
BUFFER_TRACE(bitmap_bh, "get_write_access");
fatal = ext3_journal_get_write_access(handle, bitmap_bh);
fatal = ext4_journal_get_write_access(handle, bitmap_bh);
if (fatal)
goto error_return;
/* Ok, now we can actually update the inode bitmaps.. */
if (!ext3_clear_bit_atomic(sb_bgl_lock(sbi, block_group),
if (!ext4_clear_bit_atomic(sb_bgl_lock(sbi, block_group),
bit, bitmap_bh->b_data))
ext3_error (sb, "ext3_free_inode",
ext4_error (sb, "ext4_free_inode",
"bit already cleared for inode %lu", ino);
else {
gdp = ext3_get_group_desc (sb, block_group, &bh2);
gdp = ext4_get_group_desc (sb, block_group, &bh2);
BUFFER_TRACE(bh2, "get_write_access");
fatal = ext3_journal_get_write_access(handle, bh2);
fatal = ext4_journal_get_write_access(handle, bh2);
if (fatal) goto error_return;
if (gdp) {
@ -175,18 +175,18 @@ void ext3_free_inode (handle_t *handle, struct inode * inode)
percpu_counter_dec(&sbi->s_dirs_counter);
}
BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
err = ext3_journal_dirty_metadata(handle, bh2);
BUFFER_TRACE(bh2, "call ext4_journal_dirty_metadata");
err = ext4_journal_dirty_metadata(handle, bh2);
if (!fatal) fatal = err;
}
BUFFER_TRACE(bitmap_bh, "call ext3_journal_dirty_metadata");
err = ext3_journal_dirty_metadata(handle, bitmap_bh);
BUFFER_TRACE(bitmap_bh, "call ext4_journal_dirty_metadata");
err = ext4_journal_dirty_metadata(handle, bitmap_bh);
if (!fatal)
fatal = err;
sb->s_dirt = 1;
error_return:
brelse(bitmap_bh);
ext3_std_error(sb, fatal);
ext4_std_error(sb, fatal);
}
/*
@ -201,17 +201,17 @@ error_return:
*/
static int find_group_dir(struct super_block *sb, struct inode *parent)
{
int ngroups = EXT3_SB(sb)->s_groups_count;
int ngroups = EXT4_SB(sb)->s_groups_count;
unsigned int freei, avefreei;
struct ext3_group_desc *desc, *best_desc = NULL;
struct ext4_group_desc *desc, *best_desc = NULL;
struct buffer_head *bh;
int group, best_group = -1;
freei = percpu_counter_read_positive(&EXT3_SB(sb)->s_freeinodes_counter);
freei = percpu_counter_read_positive(&EXT4_SB(sb)->s_freeinodes_counter);
avefreei = freei / ngroups;
for (group = 0; group < ngroups; group++) {
desc = ext3_get_group_desc (sb, group, &bh);
desc = ext4_get_group_desc (sb, group, &bh);
if (!desc || !desc->bg_free_inodes_count)
continue;
if (le16_to_cpu(desc->bg_free_inodes_count) < avefreei)
@ -256,19 +256,19 @@ static int find_group_dir(struct super_block *sb, struct inode *parent)
static int find_group_orlov(struct super_block *sb, struct inode *parent)
{
int parent_group = EXT3_I(parent)->i_block_group;
struct ext3_sb_info *sbi = EXT3_SB(sb);
struct ext3_super_block *es = sbi->s_es;
int parent_group = EXT4_I(parent)->i_block_group;
struct ext4_sb_info *sbi = EXT4_SB(sb);
struct ext4_super_block *es = sbi->s_es;
int ngroups = sbi->s_groups_count;
int inodes_per_group = EXT3_INODES_PER_GROUP(sb);
int inodes_per_group = EXT4_INODES_PER_GROUP(sb);
unsigned int freei, avefreei;
ext3_fsblk_t freeb, avefreeb;
ext3_fsblk_t blocks_per_dir;
ext4_fsblk_t freeb, avefreeb;
ext4_fsblk_t blocks_per_dir;
unsigned int ndirs;
int max_debt, max_dirs, min_inodes;
ext3_grpblk_t min_blocks;
ext4_grpblk_t min_blocks;
int group = -1, i;
struct ext3_group_desc *desc;
struct ext4_group_desc *desc;
struct buffer_head *bh;
freei = percpu_counter_read_positive(&sbi->s_freeinodes_counter);
@ -278,7 +278,7 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent)
ndirs = percpu_counter_read_positive(&sbi->s_dirs_counter);
if ((parent == sb->s_root->d_inode) ||
(EXT3_I(parent)->i_flags & EXT3_TOPDIR_FL)) {
(EXT4_I(parent)->i_flags & EXT4_TOPDIR_FL)) {
int best_ndir = inodes_per_group;
int best_group = -1;
@ -286,7 +286,7 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent)
parent_group = (unsigned)group % ngroups;
for (i = 0; i < ngroups; i++) {
group = (parent_group + i) % ngroups;
desc = ext3_get_group_desc (sb, group, &bh);
desc = ext4_get_group_desc (sb, group, &bh);
if (!desc || !desc->bg_free_inodes_count)
continue;
if (le16_to_cpu(desc->bg_used_dirs_count) >= best_ndir)
@ -307,9 +307,9 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent)
max_dirs = ndirs / ngroups + inodes_per_group / 16;
min_inodes = avefreei - inodes_per_group / 4;
min_blocks = avefreeb - EXT3_BLOCKS_PER_GROUP(sb) / 4;
min_blocks = avefreeb - EXT4_BLOCKS_PER_GROUP(sb) / 4;
max_debt = EXT3_BLOCKS_PER_GROUP(sb) / max(blocks_per_dir, (ext3_fsblk_t)BLOCK_COST);
max_debt = EXT4_BLOCKS_PER_GROUP(sb) / max(blocks_per_dir, (ext4_fsblk_t)BLOCK_COST);
if (max_debt * INODE_COST > inodes_per_group)
max_debt = inodes_per_group / INODE_COST;
if (max_debt > 255)
@ -319,7 +319,7 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent)
for (i = 0; i < ngroups; i++) {
group = (parent_group + i) % ngroups;
desc = ext3_get_group_desc (sb, group, &bh);
desc = ext4_get_group_desc (sb, group, &bh);
if (!desc || !desc->bg_free_inodes_count)
continue;
if (le16_to_cpu(desc->bg_used_dirs_count) >= max_dirs)
@ -334,7 +334,7 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent)
fallback:
for (i = 0; i < ngroups; i++) {
group = (parent_group + i) % ngroups;
desc = ext3_get_group_desc (sb, group, &bh);
desc = ext4_get_group_desc (sb, group, &bh);
if (!desc || !desc->bg_free_inodes_count)
continue;
if (le16_to_cpu(desc->bg_free_inodes_count) >= avefreei)
@ -355,9 +355,9 @@ fallback:
static int find_group_other(struct super_block *sb, struct inode *parent)
{
int parent_group = EXT3_I(parent)->i_block_group;
int ngroups = EXT3_SB(sb)->s_groups_count;
struct ext3_group_desc *desc;
int parent_group = EXT4_I(parent)->i_block_group;
int ngroups = EXT4_SB(sb)->s_groups_count;
struct ext4_group_desc *desc;
struct buffer_head *bh;
int group, i;
@ -365,7 +365,7 @@ static int find_group_other(struct super_block *sb, struct inode *parent)
* Try to place the inode in its parent directory
*/
group = parent_group;
desc = ext3_get_group_desc (sb, group, &bh);
desc = ext4_get_group_desc (sb, group, &bh);
if (desc && le16_to_cpu(desc->bg_free_inodes_count) &&
le16_to_cpu(desc->bg_free_blocks_count))
return group;
@ -389,7 +389,7 @@ static int find_group_other(struct super_block *sb, struct inode *parent)
group += i;
if (group >= ngroups)
group -= ngroups;
desc = ext3_get_group_desc (sb, group, &bh);
desc = ext4_get_group_desc (sb, group, &bh);
if (desc && le16_to_cpu(desc->bg_free_inodes_count) &&
le16_to_cpu(desc->bg_free_blocks_count))
return group;
@ -403,7 +403,7 @@ static int find_group_other(struct super_block *sb, struct inode *parent)
for (i = 0; i < ngroups; i++) {
if (++group >= ngroups)
group = 0;
desc = ext3_get_group_desc (sb, group, &bh);
desc = ext4_get_group_desc (sb, group, &bh);
if (desc && le16_to_cpu(desc->bg_free_inodes_count))
return group;
}
@ -421,7 +421,7 @@ static int find_group_other(struct super_block *sb, struct inode *parent)
* For other inodes, search forward from the parent directory's block
* group to find a free inode.
*/
struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode)
struct inode *ext4_new_inode(handle_t *handle, struct inode * dir, int mode)
{
struct super_block *sb;
struct buffer_head *bitmap_bh = NULL;
@ -429,10 +429,10 @@ struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode)
int group;
unsigned long ino = 0;
struct inode * inode;
struct ext3_group_desc * gdp = NULL;
struct ext3_super_block * es;
struct ext3_inode_info *ei;
struct ext3_sb_info *sbi;
struct ext4_group_desc * gdp = NULL;
struct ext4_super_block * es;
struct ext4_inode_info *ei;
struct ext4_sb_info *sbi;
int err = 0;
struct inode *ret;
int i;
@ -445,9 +445,9 @@ struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode)
inode = new_inode(sb);
if (!inode)
return ERR_PTR(-ENOMEM);
ei = EXT3_I(inode);
ei = EXT4_I(inode);
sbi = EXT3_SB(sb);
sbi = EXT4_SB(sb);
es = sbi->s_es;
if (S_ISDIR(mode)) {
if (test_opt (sb, OLDALLOC))
@ -464,7 +464,7 @@ struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode)
for (i = 0; i < sbi->s_groups_count; i++) {
err = -EIO;
gdp = ext3_get_group_desc(sb, group, &bh2);
gdp = ext4_get_group_desc(sb, group, &bh2);
if (!gdp)
goto fail;
@ -476,21 +476,21 @@ struct inode *ext3_new_inode(handle_t *handle, struct inode * dir, int mode)
ino = 0;
repeat_in_this_group:
ino = ext3_find_next_zero_bit((unsigned long *)
bitmap_bh->b_data, EXT3_INODES_PER_GROUP(sb), ino);
if (ino < EXT3_INODES_PER_GROUP(sb)) {
ino = ext4_find_next_zero_bit((unsigned long *)
bitmap_bh->b_data, EXT4_INODES_PER_GROUP(sb), ino);
if (ino < EXT4_INODES_PER_GROUP(sb)) {
BUFFER_TRACE(bitmap_bh, "get_write_access");
err = ext3_journal_get_write_access(handle, bitmap_bh);
err = ext4_journal_get_write_access(handle, bitmap_bh);
if (err)
goto fail;
if (!ext3_set_bit_atomic(sb_bgl_lock(sbi, group),
if (!ext4_set_bit_atomic(sb_bgl_lock(sbi, group),
ino, bitmap_bh->b_data)) {
/* we won it */
BUFFER_TRACE(bitmap_bh,
"call ext3_journal_dirty_metadata");
err = ext3_journal_dirty_metadata(handle,
"call ext4_journal_dirty_metadata");
err = ext4_journal_dirty_metadata(handle,
bitmap_bh);
if (err)
goto fail;
@ -499,7 +499,7 @@ repeat_in_this_group:
/* we lost it */
journal_release_buffer(handle, bitmap_bh);
if (++ino < EXT3_INODES_PER_GROUP(sb))
if (++ino < EXT4_INODES_PER_GROUP(sb))
goto repeat_in_this_group;
}
@ -517,9 +517,9 @@ repeat_in_this_group:
goto out;
got:
ino += group * EXT3_INODES_PER_GROUP(sb) + 1;
if (ino < EXT3_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
ext3_error (sb, "ext3_new_inode",
ino += group * EXT4_INODES_PER_GROUP(sb) + 1;
if (ino < EXT4_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
ext4_error (sb, "ext4_new_inode",
"reserved inode or inode > inodes count - "
"block_group = %d, inode=%lu", group, ino);
err = -EIO;
@ -527,7 +527,7 @@ got:
}
BUFFER_TRACE(bh2, "get_write_access");
err = ext3_journal_get_write_access(handle, bh2);
err = ext4_journal_get_write_access(handle, bh2);
if (err) goto fail;
spin_lock(sb_bgl_lock(sbi, group));
gdp->bg_free_inodes_count =
@ -537,8 +537,8 @@ got:
cpu_to_le16(le16_to_cpu(gdp->bg_used_dirs_count) + 1);
}
spin_unlock(sb_bgl_lock(sbi, group));
BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
err = ext3_journal_dirty_metadata(handle, bh2);
BUFFER_TRACE(bh2, "call ext4_journal_dirty_metadata");
err = ext4_journal_dirty_metadata(handle, bh2);
if (err) goto fail;
percpu_counter_dec(&sbi->s_freeinodes_counter);
@ -566,13 +566,13 @@ got:
ei->i_dir_start_lookup = 0;
ei->i_disksize = 0;
ei->i_flags = EXT3_I(dir)->i_flags & ~EXT3_INDEX_FL;
ei->i_flags = EXT4_I(dir)->i_flags & ~EXT4_INDEX_FL;
if (S_ISLNK(mode))
ei->i_flags &= ~(EXT3_IMMUTABLE_FL|EXT3_APPEND_FL);
ei->i_flags &= ~(EXT4_IMMUTABLE_FL|EXT4_APPEND_FL);
/* dirsync only applies to directories */
if (!S_ISDIR(mode))
ei->i_flags &= ~EXT3_DIRSYNC_FL;
#ifdef EXT3_FRAGMENTS
ei->i_flags &= ~EXT4_DIRSYNC_FL;
#ifdef EXT4_FRAGMENTS
ei->i_faddr = 0;
ei->i_frag_no = 0;
ei->i_frag_size = 0;
@ -583,7 +583,7 @@ got:
ei->i_block_alloc_info = NULL;
ei->i_block_group = group;
ext3_set_inode_flags(inode);
ext4_set_inode_flags(inode);
if (IS_DIRSYNC(inode))
handle->h_sync = 1;
insert_inode_hash(inode);
@ -591,10 +591,10 @@ got:
inode->i_generation = sbi->s_next_generation++;
spin_unlock(&sbi->s_next_gen_lock);
ei->i_state = EXT3_STATE_NEW;
ei->i_state = EXT4_STATE_NEW;
ei->i_extra_isize =
(EXT3_INODE_SIZE(inode->i_sb) > EXT3_GOOD_OLD_INODE_SIZE) ?
sizeof(struct ext3_inode) - EXT3_GOOD_OLD_INODE_SIZE : 0;
(EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) ?
sizeof(struct ext4_inode) - EXT4_GOOD_OLD_INODE_SIZE : 0;
ret = inode;
if(DQUOT_ALLOC_INODE(inode)) {
@ -602,24 +602,24 @@ got:
goto fail_drop;
}
err = ext3_init_acl(handle, inode, dir);
err = ext4_init_acl(handle, inode, dir);
if (err)
goto fail_free_drop;
err = ext3_init_security(handle,inode, dir);
err = ext4_init_security(handle,inode, dir);
if (err)
goto fail_free_drop;
err = ext3_mark_inode_dirty(handle, inode);
err = ext4_mark_inode_dirty(handle, inode);
if (err) {
ext3_std_error(sb, err);
ext4_std_error(sb, err);
goto fail_free_drop;
}
ext3_debug("allocating inode %lu\n", inode->i_ino);
ext4_debug("allocating inode %lu\n", inode->i_ino);
goto really_out;
fail:
ext3_std_error(sb, err);
ext4_std_error(sb, err);
out:
iput(inode);
ret = ERR_PTR(err);
@ -640,9 +640,9 @@ fail_drop:
}
/* Verify that we are loading a valid orphan from disk */
struct inode *ext3_orphan_get(struct super_block *sb, unsigned long ino)
struct inode *ext4_orphan_get(struct super_block *sb, unsigned long ino)
{
unsigned long max_ino = le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count);
unsigned long max_ino = le32_to_cpu(EXT4_SB(sb)->s_es->s_inodes_count);
unsigned long block_group;
int bit;
struct buffer_head *bitmap_bh = NULL;
@ -650,16 +650,16 @@ struct inode *ext3_orphan_get(struct super_block *sb, unsigned long ino)
/* Error cases - e2fsck has already cleaned up for us */
if (ino > max_ino) {
ext3_warning(sb, __FUNCTION__,
ext4_warning(sb, __FUNCTION__,
"bad orphan ino %lu! e2fsck was run?", ino);
goto out;
}
block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
bit = (ino - 1) % EXT3_INODES_PER_GROUP(sb);
block_group = (ino - 1) / EXT4_INODES_PER_GROUP(sb);
bit = (ino - 1) % EXT4_INODES_PER_GROUP(sb);
bitmap_bh = read_inode_bitmap(sb, block_group);
if (!bitmap_bh) {
ext3_warning(sb, __FUNCTION__,
ext4_warning(sb, __FUNCTION__,
"inode bitmap error for orphan %lu", ino);
goto out;
}
@ -668,14 +668,14 @@ struct inode *ext3_orphan_get(struct super_block *sb, unsigned long ino)
* is a valid orphan (no e2fsck run on fs). Orphans also include
* inodes that were being truncated, so we can't check i_nlink==0.
*/
if (!ext3_test_bit(bit, bitmap_bh->b_data) ||
if (!ext4_test_bit(bit, bitmap_bh->b_data) ||
!(inode = iget(sb, ino)) || is_bad_inode(inode) ||
NEXT_ORPHAN(inode) > max_ino) {
ext3_warning(sb, __FUNCTION__,
ext4_warning(sb, __FUNCTION__,
"bad orphan inode %lu! e2fsck was run?", ino);
printk(KERN_NOTICE "ext3_test_bit(bit=%d, block=%llu) = %d\n",
printk(KERN_NOTICE "ext4_test_bit(bit=%d, block=%llu) = %d\n",
bit, (unsigned long long)bitmap_bh->b_blocknr,
ext3_test_bit(bit, bitmap_bh->b_data));
ext4_test_bit(bit, bitmap_bh->b_data));
printk(KERN_NOTICE "inode=%p\n", inode);
if (inode) {
printk(KERN_NOTICE "is_bad_inode(inode)=%d\n",
@ -695,22 +695,22 @@ out:
return inode;
}
unsigned long ext3_count_free_inodes (struct super_block * sb)
unsigned long ext4_count_free_inodes (struct super_block * sb)
{
unsigned long desc_count;
struct ext3_group_desc *gdp;
struct ext4_group_desc *gdp;
int i;
#ifdef EXT3FS_DEBUG
struct ext3_super_block *es;
#ifdef EXT4FS_DEBUG
struct ext4_super_block *es;
unsigned long bitmap_count, x;
struct buffer_head *bitmap_bh = NULL;
es = EXT3_SB(sb)->s_es;
es = EXT4_SB(sb)->s_es;
desc_count = 0;
bitmap_count = 0;
gdp = NULL;
for (i = 0; i < EXT3_SB(sb)->s_groups_count; i++) {
gdp = ext3_get_group_desc (sb, i, NULL);
for (i = 0; i < EXT4_SB(sb)->s_groups_count; i++) {
gdp = ext4_get_group_desc (sb, i, NULL);
if (!gdp)
continue;
desc_count += le16_to_cpu(gdp->bg_free_inodes_count);
@ -719,19 +719,19 @@ unsigned long ext3_count_free_inodes (struct super_block * sb)
if (!bitmap_bh)
continue;
x = ext3_count_free(bitmap_bh, EXT3_INODES_PER_GROUP(sb) / 8);
x = ext4_count_free(bitmap_bh, EXT4_INODES_PER_GROUP(sb) / 8);
printk("group %d: stored = %d, counted = %lu\n",
i, le16_to_cpu(gdp->bg_free_inodes_count), x);
bitmap_count += x;
}
brelse(bitmap_bh);
printk("ext3_count_free_inodes: stored = %u, computed = %lu, %lu\n",
printk("ext4_count_free_inodes: stored = %u, computed = %lu, %lu\n",
le32_to_cpu(es->s_free_inodes_count), desc_count, bitmap_count);
return desc_count;
#else
desc_count = 0;
for (i = 0; i < EXT3_SB(sb)->s_groups_count; i++) {
gdp = ext3_get_group_desc (sb, i, NULL);
for (i = 0; i < EXT4_SB(sb)->s_groups_count; i++) {
gdp = ext4_get_group_desc (sb, i, NULL);
if (!gdp)
continue;
desc_count += le16_to_cpu(gdp->bg_free_inodes_count);
@ -742,13 +742,13 @@ unsigned long ext3_count_free_inodes (struct super_block * sb)
}
/* Called at mount-time, super-block is locked */
unsigned long ext3_count_dirs (struct super_block * sb)
unsigned long ext4_count_dirs (struct super_block * sb)
{
unsigned long count = 0;
int i;
for (i = 0; i < EXT3_SB(sb)->s_groups_count; i++) {
struct ext3_group_desc *gdp = ext3_get_group_desc (sb, i, NULL);
for (i = 0; i < EXT4_SB(sb)->s_groups_count; i++) {
struct ext4_group_desc *gdp = ext4_get_group_desc (sb, i, NULL);
if (!gdp)
continue;
count += le16_to_cpu(gdp->bg_used_dirs_count);

1020
fs/ext4/inode.c
View File

File diff suppressed because it is too large Load Diff

156
fs/ext4/ioctl.c
View File

@ -1,5 +1,5 @@
/*
* linux/fs/ext3/ioctl.c
* linux/fs/ext4/ioctl.c
*
* Copyright (C) 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
@ -10,30 +10,30 @@
#include <linux/fs.h>
#include <linux/jbd.h>
#include <linux/capability.h>
#include <linux/ext3_fs.h>
#include <linux/ext3_jbd.h>
#include <linux/ext4_fs.h>
#include <linux/ext4_jbd.h>
#include <linux/time.h>
#include <linux/compat.h>
#include <linux/smp_lock.h>
#include <asm/uaccess.h>
int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
int ext4_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
unsigned long arg)
{
struct ext3_inode_info *ei = EXT3_I(inode);
struct ext4_inode_info *ei = EXT4_I(inode);
unsigned int flags;
unsigned short rsv_window_size;
ext3_debug ("cmd = %u, arg = %lu\n", cmd, arg);
ext4_debug ("cmd = %u, arg = %lu\n", cmd, arg);
switch (cmd) {
case EXT3_IOC_GETFLAGS:
flags = ei->i_flags & EXT3_FL_USER_VISIBLE;
case EXT4_IOC_GETFLAGS:
flags = ei->i_flags & EXT4_FL_USER_VISIBLE;
return put_user(flags, (int __user *) arg);
case EXT3_IOC_SETFLAGS: {
case EXT4_IOC_SETFLAGS: {
handle_t *handle = NULL;
int err;
struct ext3_iloc iloc;
struct ext4_iloc iloc;
unsigned int oldflags;
unsigned int jflag;
@ -47,13 +47,13 @@ int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
return -EFAULT;
if (!S_ISDIR(inode->i_mode))
flags &= ~EXT3_DIRSYNC_FL;
flags &= ~EXT4_DIRSYNC_FL;
mutex_lock(&inode->i_mutex);
oldflags = ei->i_flags;
/* The JOURNAL_DATA flag is modifiable only by root */
jflag = flags & EXT3_JOURNAL_DATA_FL;
jflag = flags & EXT4_JOURNAL_DATA_FL;
/*
* The IMMUTABLE and APPEND_ONLY flags can only be changed by
@ -61,7 +61,7 @@ int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
*
* This test looks nicer. Thanks to Pauline Middelink
*/
if ((flags ^ oldflags) & (EXT3_APPEND_FL | EXT3_IMMUTABLE_FL)) {
if ((flags ^ oldflags) & (EXT4_APPEND_FL | EXT4_IMMUTABLE_FL)) {
if (!capable(CAP_LINUX_IMMUTABLE)) {
mutex_unlock(&inode->i_mutex);
return -EPERM;
@ -72,7 +72,7 @@ int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
* The JOURNAL_DATA flag can only be changed by
* the relevant capability.
*/
if ((jflag ^ oldflags) & (EXT3_JOURNAL_DATA_FL)) {
if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL)) {
if (!capable(CAP_SYS_RESOURCE)) {
mutex_unlock(&inode->i_mutex);
return -EPERM;
@ -80,44 +80,44 @@ int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
}
handle = ext3_journal_start(inode, 1);
handle = ext4_journal_start(inode, 1);
if (IS_ERR(handle)) {
mutex_unlock(&inode->i_mutex);
return PTR_ERR(handle);
}
if (IS_SYNC(inode))
handle->h_sync = 1;
err = ext3_reserve_inode_write(handle, inode, &iloc);
err = ext4_reserve_inode_write(handle, inode, &iloc);
if (err)
goto flags_err;
flags = flags & EXT3_FL_USER_MODIFIABLE;
flags |= oldflags & ~EXT3_FL_USER_MODIFIABLE;
flags = flags & EXT4_FL_USER_MODIFIABLE;
flags |= oldflags & ~EXT4_FL_USER_MODIFIABLE;
ei->i_flags = flags;
ext3_set_inode_flags(inode);
ext4_set_inode_flags(inode);
inode->i_ctime = CURRENT_TIME_SEC;
err = ext3_mark_iloc_dirty(handle, inode, &iloc);
err = ext4_mark_iloc_dirty(handle, inode, &iloc);
flags_err:
ext3_journal_stop(handle);
ext4_journal_stop(handle);
if (err) {
mutex_unlock(&inode->i_mutex);
return err;
}
if ((jflag ^ oldflags) & (EXT3_JOURNAL_DATA_FL))
err = ext3_change_inode_journal_flag(inode, jflag);
if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL))
err = ext4_change_inode_journal_flag(inode, jflag);
mutex_unlock(&inode->i_mutex);
return err;
}
case EXT3_IOC_GETVERSION:
case EXT3_IOC_GETVERSION_OLD:
case EXT4_IOC_GETVERSION:
case EXT4_IOC_GETVERSION_OLD:
return put_user(inode->i_generation, (int __user *) arg);
case EXT3_IOC_SETVERSION:
case EXT3_IOC_SETVERSION_OLD: {
case EXT4_IOC_SETVERSION:
case EXT4_IOC_SETVERSION_OLD: {
handle_t *handle;
struct ext3_iloc iloc;
struct ext4_iloc iloc;
__u32 generation;
int err;
@ -128,20 +128,20 @@ flags_err:
if (get_user(generation, (int __user *) arg))
return -EFAULT;
handle = ext3_journal_start(inode, 1);
handle = ext4_journal_start(inode, 1);
if (IS_ERR(handle))
return PTR_ERR(handle);
err = ext3_reserve_inode_write(handle, inode, &iloc);
err = ext4_reserve_inode_write(handle, inode, &iloc);
if (err == 0) {
inode->i_ctime = CURRENT_TIME_SEC;
inode->i_generation = generation;
err = ext3_mark_iloc_dirty(handle, inode, &iloc);
err = ext4_mark_iloc_dirty(handle, inode, &iloc);
}
ext3_journal_stop(handle);
ext4_journal_stop(handle);
return err;
}
#ifdef CONFIG_JBD_DEBUG
case EXT3_IOC_WAIT_FOR_READONLY:
case EXT4_IOC_WAIT_FOR_READONLY:
/*
* This is racy - by the time we're woken up and running,
* the superblock could be released. And the module could
@ -155,16 +155,16 @@ flags_err:
int ret = 0;
set_current_state(TASK_INTERRUPTIBLE);
add_wait_queue(&EXT3_SB(sb)->ro_wait_queue, &wait);
if (timer_pending(&EXT3_SB(sb)->turn_ro_timer)) {
add_wait_queue(&EXT4_SB(sb)->ro_wait_queue, &wait);
if (timer_pending(&EXT4_SB(sb)->turn_ro_timer)) {
schedule();
ret = 1;
}
remove_wait_queue(&EXT3_SB(sb)->ro_wait_queue, &wait);
remove_wait_queue(&EXT4_SB(sb)->ro_wait_queue, &wait);
return ret;
}
#endif
case EXT3_IOC_GETRSVSZ:
case EXT4_IOC_GETRSVSZ:
if (test_opt(inode->i_sb, RESERVATION)
&& S_ISREG(inode->i_mode)
&& ei->i_block_alloc_info) {
@ -172,7 +172,7 @@ flags_err:
return put_user(rsv_window_size, (int __user *)arg);
}
return -ENOTTY;
case EXT3_IOC_SETRSVSZ: {
case EXT4_IOC_SETRSVSZ: {
if (!test_opt(inode->i_sb, RESERVATION) ||!S_ISREG(inode->i_mode))
return -ENOTTY;
@ -186,8 +186,8 @@ flags_err:
if (get_user(rsv_window_size, (int __user *)arg))
return -EFAULT;
if (rsv_window_size > EXT3_MAX_RESERVE_BLOCKS)
rsv_window_size = EXT3_MAX_RESERVE_BLOCKS;
if (rsv_window_size > EXT4_MAX_RESERVE_BLOCKS)
rsv_window_size = EXT4_MAX_RESERVE_BLOCKS;
/*
* need to allocate reservation structure for this inode
@ -195,17 +195,17 @@ flags_err:
*/
mutex_lock(&ei->truncate_mutex);
if (!ei->i_block_alloc_info)
ext3_init_block_alloc_info(inode);
ext4_init_block_alloc_info(inode);
if (ei->i_block_alloc_info){
struct ext3_reserve_window_node *rsv = &ei->i_block_alloc_info->rsv_window_node;
struct ext4_reserve_window_node *rsv = &ei->i_block_alloc_info->rsv_window_node;
rsv->rsv_goal_size = rsv_window_size;
}
mutex_unlock(&ei->truncate_mutex);
return 0;
}
case EXT3_IOC_GROUP_EXTEND: {
ext3_fsblk_t n_blocks_count;
case EXT4_IOC_GROUP_EXTEND: {
ext4_fsblk_t n_blocks_count;
struct super_block *sb = inode->i_sb;
int err;
@ -218,15 +218,15 @@ flags_err:
if (get_user(n_blocks_count, (__u32 __user *)arg))
return -EFAULT;
err = ext3_group_extend(sb, EXT3_SB(sb)->s_es, n_blocks_count);
journal_lock_updates(EXT3_SB(sb)->s_journal);
journal_flush(EXT3_SB(sb)->s_journal);
journal_unlock_updates(EXT3_SB(sb)->s_journal);
err = ext4_group_extend(sb, EXT4_SB(sb)->s_es, n_blocks_count);
journal_lock_updates(EXT4_SB(sb)->s_journal);
journal_flush(EXT4_SB(sb)->s_journal);
journal_unlock_updates(EXT4_SB(sb)->s_journal);
return err;
}
case EXT3_IOC_GROUP_ADD: {
struct ext3_new_group_data input;
case EXT4_IOC_GROUP_ADD: {
struct ext4_new_group_data input;
struct super_block *sb = inode->i_sb;
int err;
@ -236,14 +236,14 @@ flags_err:
if (IS_RDONLY(inode))
return -EROFS;
if (copy_from_user(&input, (struct ext3_new_group_input __user *)arg,
if (copy_from_user(&input, (struct ext4_new_group_input __user *)arg,
sizeof(input)))
return -EFAULT;
err = ext3_group_add(sb, &input);
journal_lock_updates(EXT3_SB(sb)->s_journal);
journal_flush(EXT3_SB(sb)->s_journal);
journal_unlock_updates(EXT3_SB(sb)->s_journal);
err = ext4_group_add(sb, &input);
journal_lock_updates(EXT4_SB(sb)->s_journal);
journal_flush(EXT4_SB(sb)->s_journal);
journal_unlock_updates(EXT4_SB(sb)->s_journal);
return err;
}
@ -255,52 +255,52 @@ flags_err:
}
#ifdef CONFIG_COMPAT
long ext3_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct inode *inode = file->f_dentry->d_inode;
int ret;
/* These are just misnamed, they actually get/put from/to user an int */
switch (cmd) {
case EXT3_IOC32_GETFLAGS:
cmd = EXT3_IOC_GETFLAGS;
case EXT4_IOC32_GETFLAGS:
cmd = EXT4_IOC_GETFLAGS;
break;
case EXT3_IOC32_SETFLAGS:
cmd = EXT3_IOC_SETFLAGS;
case EXT4_IOC32_SETFLAGS:
cmd = EXT4_IOC_SETFLAGS;
break;
case EXT3_IOC32_GETVERSION:
cmd = EXT3_IOC_GETVERSION;
case EXT4_IOC32_GETVERSION:
cmd = EXT4_IOC_GETVERSION;
break;
case EXT3_IOC32_SETVERSION:
cmd = EXT3_IOC_SETVERSION;
case EXT4_IOC32_SETVERSION:
cmd = EXT4_IOC_SETVERSION;
break;
case EXT3_IOC32_GROUP_EXTEND:
cmd = EXT3_IOC_GROUP_EXTEND;
case EXT4_IOC32_GROUP_EXTEND:
cmd = EXT4_IOC_GROUP_EXTEND;
break;
case EXT3_IOC32_GETVERSION_OLD:
cmd = EXT3_IOC_GETVERSION_OLD;
case EXT4_IOC32_GETVERSION_OLD:
cmd = EXT4_IOC_GETVERSION_OLD;
break;
case EXT3_IOC32_SETVERSION_OLD:
cmd = EXT3_IOC_SETVERSION_OLD;
case EXT4_IOC32_SETVERSION_OLD:
cmd = EXT4_IOC_SETVERSION_OLD;
break;
#ifdef CONFIG_JBD_DEBUG
case EXT3_IOC32_WAIT_FOR_READONLY:
cmd = EXT3_IOC_WAIT_FOR_READONLY;
case EXT4_IOC32_WAIT_FOR_READONLY:
cmd = EXT4_IOC_WAIT_FOR_READONLY;
break;
#endif
case EXT3_IOC32_GETRSVSZ:
cmd = EXT3_IOC_GETRSVSZ;
case EXT4_IOC32_GETRSVSZ:
cmd = EXT4_IOC_GETRSVSZ;
break;
case EXT3_IOC32_SETRSVSZ:
cmd = EXT3_IOC_SETRSVSZ;
case EXT4_IOC32_SETRSVSZ:
cmd = EXT4_IOC_SETRSVSZ;
break;
case EXT3_IOC_GROUP_ADD:
case EXT4_IOC_GROUP_ADD:
break;
default:
return -ENOIOCTLCMD;
}
lock_kernel();
ret = ext3_ioctl(inode, file, cmd, (unsigned long) compat_ptr(arg));
ret = ext4_ioctl(inode, file, cmd, (unsigned long) compat_ptr(arg));
unlock_kernel();
return ret;
}

830
fs/ext4/namei.c
View File

File diff suppressed because it is too large Load Diff

4
fs/ext4/namei.h
View File

@ -1,8 +1,8 @@
/* linux/fs/ext3/namei.h
/* linux/fs/ext4/namei.h
*
* Copyright (C) 2005 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
*
*/
extern struct dentry *ext3_get_parent(struct dentry *child);
extern struct dentry *ext4_get_parent(struct dentry *child);

412
fs/ext4/resize.c
View File

File diff suppressed because it is too large Load Diff

1110
fs/ext4/super.c
View File

File diff suppressed because it is too large Load Diff

24
fs/ext4/symlink.c
View File

@ -1,5 +1,5 @@
/*
* linux/fs/ext3/symlink.c
* linux/fs/ext4/symlink.c
*
* Only fast symlinks left here - the rest is done by generic code. AV, 1999
*
@ -14,41 +14,41 @@
*
* Copyright (C) 1991, 1992 Linus Torvalds
*
* ext3 symlink handling code
* ext4 symlink handling code
*/
#include <linux/fs.h>
#include <linux/jbd.h>
#include <linux/ext3_fs.h>
#include <linux/ext4_fs.h>
#include <linux/namei.h>
#include "xattr.h"
static void * ext3_follow_link(struct dentry *dentry, struct nameidata *nd)
static void * ext4_follow_link(struct dentry *dentry, struct nameidata *nd)
{
struct ext3_inode_info *ei = EXT3_I(dentry->d_inode);
struct ext4_inode_info *ei = EXT4_I(dentry->d_inode);
nd_set_link(nd, (char*)ei->i_data);
return NULL;
}
struct inode_operations ext3_symlink_inode_operations = {
struct inode_operations ext4_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = page_follow_link_light,
.put_link = page_put_link,
#ifdef CONFIG_EXT3_FS_XATTR
#ifdef CONFIG_EXT4DEV_FS_XATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
.listxattr = ext3_listxattr,
.listxattr = ext4_listxattr,
.removexattr = generic_removexattr,
#endif
};
struct inode_operations ext3_fast_symlink_inode_operations = {
struct inode_operations ext4_fast_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = ext3_follow_link,
#ifdef CONFIG_EXT3_FS_XATTR
.follow_link = ext4_follow_link,
#ifdef CONFIG_EXT4DEV_FS_XATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
.listxattr = ext3_listxattr,
.listxattr = ext4_listxattr,
.removexattr = generic_removexattr,
#endif
};

560
fs/ext4/xattr.c
View File

File diff suppressed because it is too large Load Diff

108
fs/ext4/xattr.h
View File

@ -1,7 +1,7 @@
/*
File: fs/ext3/xattr.h
File: fs/ext4/xattr.h
On-disk format of extended attributes for the ext3 filesystem.
On-disk format of extended attributes for the ext4 filesystem.
(C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org>
*/
@ -9,20 +9,20 @@
#include <linux/xattr.h>
/* Magic value in attribute blocks */
#define EXT3_XATTR_MAGIC 0xEA020000
#define EXT4_XATTR_MAGIC 0xEA020000
/* Maximum number of references to one attribute block */
#define EXT3_XATTR_REFCOUNT_MAX 1024
#define EXT4_XATTR_REFCOUNT_MAX 1024
/* Name indexes */
#define EXT3_XATTR_INDEX_USER 1
#define EXT3_XATTR_INDEX_POSIX_ACL_ACCESS 2
#define EXT3_XATTR_INDEX_POSIX_ACL_DEFAULT 3
#define EXT3_XATTR_INDEX_TRUSTED 4
#define EXT3_XATTR_INDEX_LUSTRE 5
#define EXT3_XATTR_INDEX_SECURITY 6
#define EXT4_XATTR_INDEX_USER 1
#define EXT4_XATTR_INDEX_POSIX_ACL_ACCESS 2
#define EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT 3
#define EXT4_XATTR_INDEX_TRUSTED 4
#define EXT4_XATTR_INDEX_LUSTRE 5
#define EXT4_XATTR_INDEX_SECURITY 6
struct ext3_xattr_header {
struct ext4_xattr_header {
__le32 h_magic; /* magic number for identification */
__le32 h_refcount; /* reference count */
__le32 h_blocks; /* number of disk blocks used */
@ -30,11 +30,11 @@ struct ext3_xattr_header {
__u32 h_reserved[4]; /* zero right now */
};
struct ext3_xattr_ibody_header {
struct ext4_xattr_ibody_header {
__le32 h_magic; /* magic number for identification */
};
struct ext3_xattr_entry {
struct ext4_xattr_entry {
__u8 e_name_len; /* length of name */
__u8 e_name_index; /* attribute name index */
__le16 e_value_offs; /* offset in disk block of value */
@ -44,100 +44,100 @@ struct ext3_xattr_entry {
char e_name[0]; /* attribute name */
};
#define EXT3_XATTR_PAD_BITS 2
#define EXT3_XATTR_PAD (1<<EXT3_XATTR_PAD_BITS)
#define EXT3_XATTR_ROUND (EXT3_XATTR_PAD-1)
#define EXT3_XATTR_LEN(name_len) \
(((name_len) + EXT3_XATTR_ROUND + \
sizeof(struct ext3_xattr_entry)) & ~EXT3_XATTR_ROUND)
#define EXT3_XATTR_NEXT(entry) \
( (struct ext3_xattr_entry *)( \
(char *)(entry) + EXT3_XATTR_LEN((entry)->e_name_len)) )
#define EXT3_XATTR_SIZE(size) \
(((size) + EXT3_XATTR_ROUND) & ~EXT3_XATTR_ROUND)
#define EXT4_XATTR_PAD_BITS 2
#define EXT4_XATTR_PAD (1<<EXT4_XATTR_PAD_BITS)
#define EXT4_XATTR_ROUND (EXT4_XATTR_PAD-1)
#define EXT4_XATTR_LEN(name_len) \
(((name_len) + EXT4_XATTR_ROUND + \
sizeof(struct ext4_xattr_entry)) & ~EXT4_XATTR_ROUND)
#define EXT4_XATTR_NEXT(entry) \
( (struct ext4_xattr_entry *)( \
(char *)(entry) + EXT4_XATTR_LEN((entry)->e_name_len)) )
#define EXT4_XATTR_SIZE(size) \
(((size) + EXT4_XATTR_ROUND) & ~EXT4_XATTR_ROUND)
# ifdef CONFIG_EXT3_FS_XATTR
# ifdef CONFIG_EXT4DEV_FS_XATTR
extern struct xattr_handler ext3_xattr_user_handler;
extern struct xattr_handler ext3_xattr_trusted_handler;
extern struct xattr_handler ext3_xattr_acl_access_handler;
extern struct xattr_handler ext3_xattr_acl_default_handler;
extern struct xattr_handler ext3_xattr_security_handler;
extern struct xattr_handler ext4_xattr_user_handler;
extern struct xattr_handler ext4_xattr_trusted_handler;
extern struct xattr_handler ext4_xattr_acl_access_handler;
extern struct xattr_handler ext4_xattr_acl_default_handler;
extern struct xattr_handler ext4_xattr_security_handler;
extern ssize_t ext3_listxattr(struct dentry *, char *, size_t);
extern ssize_t ext4_listxattr(struct dentry *, char *, size_t);
extern int ext3_xattr_get(struct inode *, int, const char *, void *, size_t);
extern int ext3_xattr_list(struct inode *, char *, size_t);
extern int ext3_xattr_set(struct inode *, int, const char *, const void *, size_t, int);
extern int ext3_xattr_set_handle(handle_t *, struct inode *, int, const char *, const void *, size_t, int);
extern int ext4_xattr_get(struct inode *, int, const char *, void *, size_t);
extern int ext4_xattr_list(struct inode *, char *, size_t);
extern int ext4_xattr_set(struct inode *, int, const char *, const void *, size_t, int);
extern int ext4_xattr_set_handle(handle_t *, struct inode *, int, const char *, const void *, size_t, int);
extern void ext3_xattr_delete_inode(handle_t *, struct inode *);
extern void ext3_xattr_put_super(struct super_block *);
extern void ext4_xattr_delete_inode(handle_t *, struct inode *);
extern void ext4_xattr_put_super(struct super_block *);
extern int init_ext3_xattr(void);
extern void exit_ext3_xattr(void);
extern int init_ext4_xattr(void);
extern void exit_ext4_xattr(void);
extern struct xattr_handler *ext3_xattr_handlers[];
extern struct xattr_handler *ext4_xattr_handlers[];
# else /* CONFIG_EXT3_FS_XATTR */
# else /* CONFIG_EXT4DEV_FS_XATTR */
static inline int
ext3_xattr_get(struct inode *inode, int name_index, const char *name,
ext4_xattr_get(struct inode *inode, int name_index, const char *name,
void *buffer, size_t size, int flags)
{
return -EOPNOTSUPP;
}
static inline int
ext3_xattr_list(struct inode *inode, void *buffer, size_t size)
ext4_xattr_list(struct inode *inode, void *buffer, size_t size)
{
return -EOPNOTSUPP;
}
static inline int
ext3_xattr_set(struct inode *inode, int name_index, const char *name,
ext4_xattr_set(struct inode *inode, int name_index, const char *name,
const void *value, size_t size, int flags)
{
return -EOPNOTSUPP;
}
static inline int
ext3_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index,
ext4_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index,
const char *name, const void *value, size_t size, int flags)
{
return -EOPNOTSUPP;
}
static inline void
ext3_xattr_delete_inode(handle_t *handle, struct inode *inode)
ext4_xattr_delete_inode(handle_t *handle, struct inode *inode)
{
}
static inline void
ext3_xattr_put_super(struct super_block *sb)
ext4_xattr_put_super(struct super_block *sb)
{
}
static inline int
init_ext3_xattr(void)
init_ext4_xattr(void)
{
return 0;
}
static inline void
exit_ext3_xattr(void)
exit_ext4_xattr(void)
{
}
#define ext3_xattr_handlers NULL
#define ext4_xattr_handlers NULL
# endif /* CONFIG_EXT3_FS_XATTR */
# endif /* CONFIG_EXT4DEV_FS_XATTR */
#ifdef CONFIG_EXT3_FS_SECURITY
extern int ext3_init_security(handle_t *handle, struct inode *inode,
#ifdef CONFIG_EXT4DEV_FS_SECURITY
extern int ext4_init_security(handle_t *handle, struct inode *inode,
struct inode *dir);
#else
static inline int ext3_init_security(handle_t *handle, struct inode *inode,
static inline int ext4_init_security(handle_t *handle, struct inode *inode,
struct inode *dir)
{
return 0;

28
fs/ext4/xattr_security.c
View File

@ -1,5 +1,5 @@
/*
* linux/fs/ext3/xattr_security.c
* linux/fs/ext4/xattr_security.c
* Handler for storing security labels as extended attributes.
*/
@ -7,13 +7,13 @@
#include <linux/string.h>
#include <linux/fs.h>
#include <linux/smp_lock.h>
#include <linux/ext3_jbd.h>
#include <linux/ext3_fs.h>
#include <linux/ext4_jbd.h>
#include <linux/ext4_fs.h>
#include <linux/security.h>
#include "xattr.h"
static size_t
ext3_xattr_security_list(struct inode *inode, char *list, size_t list_size,
ext4_xattr_security_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
{
const size_t prefix_len = sizeof(XATTR_SECURITY_PREFIX)-1;
@ -29,27 +29,27 @@ ext3_xattr_security_list(struct inode *inode, char *list, size_t list_size,
}
static int
ext3_xattr_security_get(struct inode *inode, const char *name,
ext4_xattr_security_get(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext3_xattr_get(inode, EXT3_XATTR_INDEX_SECURITY, name,
return ext4_xattr_get(inode, EXT4_XATTR_INDEX_SECURITY, name,
buffer, size);
}
static int
ext3_xattr_security_set(struct inode *inode, const char *name,
ext4_xattr_security_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext3_xattr_set(inode, EXT3_XATTR_INDEX_SECURITY, name,
return ext4_xattr_set(inode, EXT4_XATTR_INDEX_SECURITY, name,
value, size, flags);
}
int
ext3_init_security(handle_t *handle, struct inode *inode, struct inode *dir)
ext4_init_security(handle_t *handle, struct inode *inode, struct inode *dir)
{
int err;
size_t len;
@ -62,16 +62,16 @@ ext3_init_security(handle_t *handle, struct inode *inode, struct inode *dir)
return 0;
return err;
}
err = ext3_xattr_set_handle(handle, inode, EXT3_XATTR_INDEX_SECURITY,
err = ext4_xattr_set_handle(handle, inode, EXT4_XATTR_INDEX_SECURITY,
name, value, len, 0);
kfree(name);
kfree(value);
return err;
}
struct xattr_handler ext3_xattr_security_handler = {
struct xattr_handler ext4_xattr_security_handler = {
.prefix = XATTR_SECURITY_PREFIX,
.list = ext3_xattr_security_list,
.get = ext3_xattr_security_get,
.set = ext3_xattr_security_set,
.list = ext4_xattr_security_list,
.get = ext4_xattr_security_get,
.set = ext4_xattr_security_set,
};

24
fs/ext4/xattr_trusted.c
View File

@ -1,5 +1,5 @@
/*
* linux/fs/ext3/xattr_trusted.c
* linux/fs/ext4/xattr_trusted.c
* Handler for trusted extended attributes.
*
* Copyright (C) 2003 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
@ -10,14 +10,14 @@
#include <linux/capability.h>
#include <linux/fs.h>
#include <linux/smp_lock.h>
#include <linux/ext3_jbd.h>
#include <linux/ext3_fs.h>
#include <linux/ext4_jbd.h>
#include <linux/ext4_fs.h>
#include "xattr.h"
#define XATTR_TRUSTED_PREFIX "trusted."
static size_t
ext3_xattr_trusted_list(struct inode *inode, char *list, size_t list_size,
ext4_xattr_trusted_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
{
const size_t prefix_len = sizeof(XATTR_TRUSTED_PREFIX)-1;
@ -35,28 +35,28 @@ ext3_xattr_trusted_list(struct inode *inode, char *list, size_t list_size,
}
static int
ext3_xattr_trusted_get(struct inode *inode, const char *name,
ext4_xattr_trusted_get(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext3_xattr_get(inode, EXT3_XATTR_INDEX_TRUSTED, name,
return ext4_xattr_get(inode, EXT4_XATTR_INDEX_TRUSTED, name,
buffer, size);
}
static int
ext3_xattr_trusted_set(struct inode *inode, const char *name,
ext4_xattr_trusted_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
return ext3_xattr_set(inode, EXT3_XATTR_INDEX_TRUSTED, name,
return ext4_xattr_set(inode, EXT4_XATTR_INDEX_TRUSTED, name,
value, size, flags);
}
struct xattr_handler ext3_xattr_trusted_handler = {
struct xattr_handler ext4_xattr_trusted_handler = {
.prefix = XATTR_TRUSTED_PREFIX,
.list = ext3_xattr_trusted_list,
.get = ext3_xattr_trusted_get,
.set = ext3_xattr_trusted_set,
.list = ext4_xattr_trusted_list,
.get = ext4_xattr_trusted_get,
.set = ext4_xattr_trusted_set,
};

24
fs/ext4/xattr_user.c
View File

@ -1,5 +1,5 @@
/*
* linux/fs/ext3/xattr_user.c
* linux/fs/ext4/xattr_user.c
* Handler for extended user attributes.
*
* Copyright (C) 2001 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
@ -9,14 +9,14 @@
#include <linux/string.h>
#include <linux/fs.h>
#include <linux/smp_lock.h>
#include <linux/ext3_jbd.h>
#include <linux/ext3_fs.h>
#include <linux/ext4_jbd.h>
#include <linux/ext4_fs.h>
#include "xattr.h"
#define XATTR_USER_PREFIX "user."
static size_t
ext3_xattr_user_list(struct inode *inode, char *list, size_t list_size,
ext4_xattr_user_list(struct inode *inode, char *list, size_t list_size,
const char *name, size_t name_len)
{
const size_t prefix_len = sizeof(XATTR_USER_PREFIX)-1;
@ -34,31 +34,31 @@ ext3_xattr_user_list(struct inode *inode, char *list, size_t list_size,
}
static int
ext3_xattr_user_get(struct inode *inode, const char *name,
ext4_xattr_user_get(struct inode *inode, const char *name,
void *buffer, size_t size)
{
if (strcmp(name, "") == 0)
return -EINVAL;
if (!test_opt(inode->i_sb, XATTR_USER))
return -EOPNOTSUPP;
return ext3_xattr_get(inode, EXT3_XATTR_INDEX_USER, name, buffer, size);
return ext4_xattr_get(inode, EXT4_XATTR_INDEX_USER, name, buffer, size);
}
static int
ext3_xattr_user_set(struct inode *inode, const char *name,
ext4_xattr_user_set(struct inode *inode, const char *name,
const void *value, size_t size, int flags)
{
if (strcmp(name, "") == 0)
return -EINVAL;
if (!test_opt(inode->i_sb, XATTR_USER))
return -EOPNOTSUPP;
return ext3_xattr_set(inode, EXT3_XATTR_INDEX_USER, name,
return ext4_xattr_set(inode, EXT4_XATTR_INDEX_USER, name,
value, size, flags);
}
struct xattr_handler ext3_xattr_user_handler = {
struct xattr_handler ext4_xattr_user_handler = {
.prefix = XATTR_USER_PREFIX,
.list = ext3_xattr_user_list,
.get = ext3_xattr_user_get,
.set = ext3_xattr_user_set,
.list = ext4_xattr_user_list,
.get = ext4_xattr_user_get,
.set = ext4_xattr_user_set,
};

692
include/linux/ext4_fs.h
View File

File diff suppressed because it is too large Load Diff

56
include/linux/ext4_fs_i.h
View File

@ -1,5 +1,5 @@
/*
* linux/include/linux/ext3_fs_i.h
* linux/include/linux/ext4_fs_i.h
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
@ -13,8 +13,8 @@
* Copyright (C) 1991, 1992 Linus Torvalds
*/
#ifndef _LINUX_EXT3_FS_I
#define _LINUX_EXT3_FS_I
#ifndef _LINUX_EXT4_FS_I
#define _LINUX_EXT4_FS_I
#include <linux/rwsem.h>
#include <linux/rbtree.h>
@ -22,43 +22,43 @@
#include <linux/mutex.h>
/* data type for block offset of block group */
typedef int ext3_grpblk_t;
typedef int ext4_grpblk_t;
/* data type for filesystem-wide blocks number */
typedef unsigned long ext3_fsblk_t;
typedef unsigned long ext4_fsblk_t;
#define E3FSBLK "%lu"
struct ext3_reserve_window {
ext3_fsblk_t _rsv_start; /* First byte reserved */
ext3_fsblk_t _rsv_end; /* Last byte reserved or 0 */
struct ext4_reserve_window {
ext4_fsblk_t _rsv_start; /* First byte reserved */
ext4_fsblk_t _rsv_end; /* Last byte reserved or 0 */
};
struct ext3_reserve_window_node {
struct ext4_reserve_window_node {
struct rb_node rsv_node;
__u32 rsv_goal_size;
__u32 rsv_alloc_hit;
struct ext3_reserve_window rsv_window;
struct ext4_reserve_window rsv_window;
};
struct ext3_block_alloc_info {
struct ext4_block_alloc_info {
/* information about reservation window */
struct ext3_reserve_window_node rsv_window_node;
struct ext4_reserve_window_node rsv_window_node;
/*
* was i_next_alloc_block in ext3_inode_info
* was i_next_alloc_block in ext4_inode_info
* is the logical (file-relative) number of the
* most-recently-allocated block in this file.
* We use this for detecting linearly ascending allocation requests.
*/
__u32 last_alloc_logical_block;
/*
* Was i_next_alloc_goal in ext3_inode_info
* Was i_next_alloc_goal in ext4_inode_info
* is the *physical* companion to i_next_alloc_block.
* it the the physical block number of the block which was most-recentl
* allocated to this file. This give us the goal (target) for the next
* allocation when we detect linearly ascending requests.
*/
ext3_fsblk_t last_alloc_physical_block;
ext4_fsblk_t last_alloc_physical_block;
};
#define rsv_start rsv_window._rsv_start
@ -67,15 +67,15 @@ struct ext3_block_alloc_info {
/*
* third extended file system inode data in memory
*/
struct ext3_inode_info {
struct ext4_inode_info {
__le32 i_data[15]; /* unconverted */
__u32 i_flags;
#ifdef EXT3_FRAGMENTS
#ifdef EXT4_FRAGMENTS
__u32 i_faddr;
__u8 i_frag_no;
__u8 i_frag_size;
#endif
ext3_fsblk_t i_file_acl;
ext4_fsblk_t i_file_acl;
__u32 i_dir_acl;
__u32 i_dtime;
@ -87,13 +87,13 @@ struct ext3_inode_info {
* near to their parent directory's inode.
*/
__u32 i_block_group;
__u32 i_state; /* Dynamic state flags for ext3 */
__u32 i_state; /* Dynamic state flags for ext4 */
/* block reservation info */
struct ext3_block_alloc_info *i_block_alloc_info;
struct ext4_block_alloc_info *i_block_alloc_info;
__u32 i_dir_start_lookup;
#ifdef CONFIG_EXT3_FS_XATTR
#ifdef CONFIG_EXT4DEV_FS_XATTR
/*
* Extended attributes can be read independently of the main file
* data. Taking i_mutex even when reading would cause contention
@ -103,7 +103,7 @@ struct ext3_inode_info {
*/
struct rw_semaphore xattr_sem;
#endif
#ifdef CONFIG_EXT3_FS_POSIX_ACL
#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
struct posix_acl *i_acl;
struct posix_acl *i_default_acl;
#endif
@ -113,7 +113,7 @@ struct ext3_inode_info {
/*
* i_disksize keeps track of what the inode size is ON DISK, not
* in memory. During truncate, i_size is set to the new size by
* the VFS prior to calling ext3_truncate(), but the filesystem won't
* the VFS prior to calling ext4_truncate(), but the filesystem won't
* set i_disksize to 0 until the truncate is actually under way.
*
* The intent is that i_disksize always represents the blocks which
@ -123,7 +123,7 @@ struct ext3_inode_info {
*
* The only time when i_disksize and i_size may be different is when
* a truncate is in progress. The only things which change i_disksize
* are ext3_get_block (growth) and ext3_truncate (shrinkth).
* are ext4_get_block (growth) and ext4_truncate (shrinkth).
*/
loff_t i_disksize;
@ -131,10 +131,10 @@ struct ext3_inode_info {
__u16 i_extra_isize;
/*
* truncate_mutex is for serialising ext3_truncate() against
* ext3_getblock(). In the 2.4 ext2 design, great chunks of inode's
* truncate_mutex is for serialising ext4_truncate() against
* ext4_getblock(). In the 2.4 ext2 design, great chunks of inode's
* data tree are chopped off during truncate. We can't do that in
* ext3 because whenever we perform intermediate commits during
* ext4 because whenever we perform intermediate commits during
* truncate, the inode and all the metadata blocks *must* be in a
* consistent state which allows truncation of the orphans to restart
* during recovery. Hence we must fix the get_block-vs-truncate race
@ -144,4 +144,4 @@ struct ext3_inode_info {
struct inode vfs_inode;
};
#endif /* _LINUX_EXT3_FS_I */
#endif /* _LINUX_EXT4_FS_I */

14
include/linux/ext4_fs_sb.h
View File

@ -1,5 +1,5 @@
/*
* linux/include/linux/ext3_fs_sb.h
* linux/include/linux/ext4_fs_sb.h
*
* Copyright (C) 1992, 1993, 1994, 1995
* Remy Card (card@masi.ibp.fr)
@ -13,8 +13,8 @@
* Copyright (C) 1991, 1992 Linus Torvalds
*/
#ifndef _LINUX_EXT3_FS_SB
#define _LINUX_EXT3_FS_SB
#ifndef _LINUX_EXT4_FS_SB
#define _LINUX_EXT4_FS_SB
#ifdef __KERNEL__
#include <linux/timer.h>
@ -27,7 +27,7 @@
/*
* third extended-fs super-block data in memory
*/
struct ext3_sb_info {
struct ext4_sb_info {
unsigned long s_frag_size; /* Size of a fragment in bytes */
unsigned long s_frags_per_block;/* Number of fragments per block */
unsigned long s_inodes_per_block;/* Number of inodes per block */
@ -39,7 +39,7 @@ struct ext3_sb_info {
unsigned long s_desc_per_block; /* Number of group descriptors per block */
unsigned long s_groups_count; /* Number of groups in the fs */
struct buffer_head * s_sbh; /* Buffer containing the super block */
struct ext3_super_block * s_es; /* Pointer to the super block in the buffer */
struct ext4_super_block * s_es; /* Pointer to the super block in the buffer */
struct buffer_head ** s_group_desc;
unsigned long s_mount_opt;
uid_t s_resuid;
@ -62,7 +62,7 @@ struct ext3_sb_info {
/* root of the per fs reservation window tree */
spinlock_t s_rsv_window_lock;
struct rb_root s_rsv_window_root;
struct ext3_reserve_window_node s_rsv_window_head;
struct ext4_reserve_window_node s_rsv_window_head;
/* Journaling */
struct inode * s_journal_inode;
@ -80,4 +80,4 @@ struct ext3_sb_info {
#endif
};
#endif /* _LINUX_EXT3_FS_SB */
#endif /* _LINUX_EXT4_FS_SB */

160
include/linux/ext4_jbd.h
View File

@ -1,5 +1,5 @@
/*
* linux/include/linux/ext3_jbd.h
* linux/include/linux/ext4_jbd.h
*
* Written by Stephen C. Tweedie <sct@redhat.com>, 1999
*
@ -9,17 +9,17 @@
* the terms of the GNU General Public License, version 2, or at your
* option, any later version, incorporated herein by reference.
*
* Ext3-specific journaling extensions.
* Ext4-specific journaling extensions.
*/
#ifndef _LINUX_EXT3_JBD_H
#define _LINUX_EXT3_JBD_H
#ifndef _LINUX_EXT4_JBD_H
#define _LINUX_EXT4_JBD_H
#include <linux/fs.h>
#include <linux/jbd.h>
#include <linux/ext3_fs.h>
#include <linux/ext4_fs.h>
#define EXT3_JOURNAL(inode) (EXT3_SB((inode)->i_sb)->s_journal)
#define EXT4_JOURNAL(inode) (EXT4_SB((inode)->i_sb)->s_journal)
/* Define the number of blocks we need to account to a transaction to
* modify one block of data.
@ -28,13 +28,13 @@
* indirection blocks, the group and superblock summaries, and the data
* block to complete the transaction. */
#define EXT3_SINGLEDATA_TRANS_BLOCKS 8U
#define EXT4_SINGLEDATA_TRANS_BLOCKS 8U
/* Extended attribute operations touch at most two data buffers,
* two bitmap buffers, and two group summaries, in addition to the inode
* and the superblock, which are already accounted for. */
#define EXT3_XATTR_TRANS_BLOCKS 6U
#define EXT4_XATTR_TRANS_BLOCKS 6U
/* Define the minimum size for a transaction which modifies data. This
* needs to take into account the fact that we may end up modifying two
@ -42,15 +42,15 @@
* superblock only gets updated once, of course, so don't bother
* counting that again for the quota updates. */
#define EXT3_DATA_TRANS_BLOCKS(sb) (EXT3_SINGLEDATA_TRANS_BLOCKS + \
EXT3_XATTR_TRANS_BLOCKS - 2 + \
2*EXT3_QUOTA_TRANS_BLOCKS(sb))
#define EXT4_DATA_TRANS_BLOCKS(sb) (EXT4_SINGLEDATA_TRANS_BLOCKS + \
EXT4_XATTR_TRANS_BLOCKS - 2 + \
2*EXT4_QUOTA_TRANS_BLOCKS(sb))
/* Delete operations potentially hit one directory's namespace plus an
* entire inode, plus arbitrary amounts of bitmap/indirection data. Be
* generous. We can grow the delete transaction later if necessary. */
#define EXT3_DELETE_TRANS_BLOCKS(sb) (2 * EXT3_DATA_TRANS_BLOCKS(sb) + 64)
#define EXT4_DELETE_TRANS_BLOCKS(sb) (2 * EXT4_DATA_TRANS_BLOCKS(sb) + 64)
/* Define an arbitrary limit for the amount of data we will anticipate
* writing to any given transaction. For unbounded transactions such as
@ -58,7 +58,7 @@
* start off at the maximum transaction size and grow the transaction
* optimistically as we go. */
#define EXT3_MAX_TRANS_DATA 64U
#define EXT4_MAX_TRANS_DATA 64U
/* We break up a large truncate or write transaction once the handle's
* buffer credits gets this low, we need either to extend the
@ -67,202 +67,202 @@
* one block, plus two quota updates. Quota allocations are not
* needed. */
#define EXT3_RESERVE_TRANS_BLOCKS 12U
#define EXT4_RESERVE_TRANS_BLOCKS 12U
#define EXT3_INDEX_EXTRA_TRANS_BLOCKS 8
#define EXT4_INDEX_EXTRA_TRANS_BLOCKS 8
#ifdef CONFIG_QUOTA
/* Amount of blocks needed for quota update - we know that the structure was
* allocated so we need to update only inode+data */
#define EXT3_QUOTA_TRANS_BLOCKS(sb) (test_opt(sb, QUOTA) ? 2 : 0)
#define EXT4_QUOTA_TRANS_BLOCKS(sb) (test_opt(sb, QUOTA) ? 2 : 0)
/* Amount of blocks needed for quota insert/delete - we do some block writes
* but inode, sb and group updates are done only once */
#define EXT3_QUOTA_INIT_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_INIT_ALLOC*\
(EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_INIT_REWRITE) : 0)
#define EXT3_QUOTA_DEL_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_DEL_ALLOC*\
(EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_DEL_REWRITE) : 0)
#define EXT4_QUOTA_INIT_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_INIT_ALLOC*\
(EXT4_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_INIT_REWRITE) : 0)
#define EXT4_QUOTA_DEL_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_DEL_ALLOC*\
(EXT4_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_DEL_REWRITE) : 0)
#else
#define EXT3_QUOTA_TRANS_BLOCKS(sb) 0
#define EXT3_QUOTA_INIT_BLOCKS(sb) 0
#define EXT3_QUOTA_DEL_BLOCKS(sb) 0
#define EXT4_QUOTA_TRANS_BLOCKS(sb) 0
#define EXT4_QUOTA_INIT_BLOCKS(sb) 0
#define EXT4_QUOTA_DEL_BLOCKS(sb) 0
#endif
int
ext3_mark_iloc_dirty(handle_t *handle,
ext4_mark_iloc_dirty(handle_t *handle,
struct inode *inode,
struct ext3_iloc *iloc);
struct ext4_iloc *iloc);
/*
* On success, We end up with an outstanding reference count against
* iloc->bh. This _must_ be cleaned up later.
*/
int ext3_reserve_inode_write(handle_t *handle, struct inode *inode,
struct ext3_iloc *iloc);
int ext4_reserve_inode_write(handle_t *handle, struct inode *inode,
struct ext4_iloc *iloc);
int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode);
int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode);
/*
* Wrapper functions with which ext3 calls into JBD. The intent here is
* to allow these to be turned into appropriate stubs so ext3 can control
* ext2 filesystems, so ext2+ext3 systems only nee one fs. This work hasn't
* Wrapper functions with which ext4 calls into JBD. The intent here is
* to allow these to be turned into appropriate stubs so ext4 can control
* ext2 filesystems, so ext2+ext4 systems only nee one fs. This work hasn't
* been done yet.
*/
void ext3_journal_abort_handle(const char *caller, const char *err_fn,
void ext4_journal_abort_handle(const char *caller, const char *err_fn,
struct buffer_head *bh, handle_t *handle, int err);
static inline int
__ext3_journal_get_undo_access(const char *where, handle_t *handle,
__ext4_journal_get_undo_access(const char *where, handle_t *handle,
struct buffer_head *bh)
{
int err = journal_get_undo_access(handle, bh);
if (err)
ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
return err;
}
static inline int
__ext3_journal_get_write_access(const char *where, handle_t *handle,
__ext4_journal_get_write_access(const char *where, handle_t *handle,
struct buffer_head *bh)
{
int err = journal_get_write_access(handle, bh);
if (err)
ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
return err;
}
static inline void
ext3_journal_release_buffer(handle_t *handle, struct buffer_head *bh)
ext4_journal_release_buffer(handle_t *handle, struct buffer_head *bh)
{
journal_release_buffer(handle, bh);
}
static inline int
__ext3_journal_forget(const char *where, handle_t *handle, struct buffer_head *bh)
__ext4_journal_forget(const char *where, handle_t *handle, struct buffer_head *bh)
{
int err = journal_forget(handle, bh);
if (err)
ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
return err;
}
static inline int
__ext3_journal_revoke(const char *where, handle_t *handle,
__ext4_journal_revoke(const char *where, handle_t *handle,
unsigned long blocknr, struct buffer_head *bh)
{
int err = journal_revoke(handle, blocknr, bh);
if (err)
ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
return err;
}
static inline int
__ext3_journal_get_create_access(const char *where,
__ext4_journal_get_create_access(const char *where,
handle_t *handle, struct buffer_head *bh)
{
int err = journal_get_create_access(handle, bh);
if (err)
ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
return err;
}
static inline int
__ext3_journal_dirty_metadata(const char *where,
__ext4_journal_dirty_metadata(const char *where,
handle_t *handle, struct buffer_head *bh)
{
int err = journal_dirty_metadata(handle, bh);
if (err)
ext3_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
ext4_journal_abort_handle(where, __FUNCTION__, bh, handle,err);
return err;
}
#define ext3_journal_get_undo_access(handle, bh) \
__ext3_journal_get_undo_access(__FUNCTION__, (handle), (bh))
#define ext3_journal_get_write_access(handle, bh) \
__ext3_journal_get_write_access(__FUNCTION__, (handle), (bh))
#define ext3_journal_revoke(handle, blocknr, bh) \
__ext3_journal_revoke(__FUNCTION__, (handle), (blocknr), (bh))
#define ext3_journal_get_create_access(handle, bh) \
__ext3_journal_get_create_access(__FUNCTION__, (handle), (bh))
#define ext3_journal_dirty_metadata(handle, bh) \
__ext3_journal_dirty_metadata(__FUNCTION__, (handle), (bh))
#define ext3_journal_forget(handle, bh) \
__ext3_journal_forget(__FUNCTION__, (handle), (bh))
#define ext4_journal_get_undo_access(handle, bh) \
__ext4_journal_get_undo_access(__FUNCTION__, (handle), (bh))
#define ext4_journal_get_write_access(handle, bh) \
__ext4_journal_get_write_access(__FUNCTION__, (handle), (bh))
#define ext4_journal_revoke(handle, blocknr, bh) \
__ext4_journal_revoke(__FUNCTION__, (handle), (blocknr), (bh))
#define ext4_journal_get_create_access(handle, bh) \
__ext4_journal_get_create_access(__FUNCTION__, (handle), (bh))
#define ext4_journal_dirty_metadata(handle, bh) \
__ext4_journal_dirty_metadata(__FUNCTION__, (handle), (bh))
#define ext4_journal_forget(handle, bh) \
__ext4_journal_forget(__FUNCTION__, (handle), (bh))
int ext3_journal_dirty_data(handle_t *handle, struct buffer_head *bh);
int ext4_journal_dirty_data(handle_t *handle, struct buffer_head *bh);
handle_t *ext3_journal_start_sb(struct super_block *sb, int nblocks);
int __ext3_journal_stop(const char *where, handle_t *handle);
handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks);
int __ext4_journal_stop(const char *where, handle_t *handle);
static inline handle_t *ext3_journal_start(struct inode *inode, int nblocks)
static inline handle_t *ext4_journal_start(struct inode *inode, int nblocks)
{
return ext3_journal_start_sb(inode->i_sb, nblocks);
return ext4_journal_start_sb(inode->i_sb, nblocks);
}
#define ext3_journal_stop(handle) \
__ext3_journal_stop(__FUNCTION__, (handle))
#define ext4_journal_stop(handle) \
__ext4_journal_stop(__FUNCTION__, (handle))
static inline handle_t *ext3_journal_current_handle(void)
static inline handle_t *ext4_journal_current_handle(void)
{
return journal_current_handle();
}
static inline int ext3_journal_extend(handle_t *handle, int nblocks)
static inline int ext4_journal_extend(handle_t *handle, int nblocks)
{
return journal_extend(handle, nblocks);
}
static inline int ext3_journal_restart(handle_t *handle, int nblocks)
static inline int ext4_journal_restart(handle_t *handle, int nblocks)
{
return journal_restart(handle, nblocks);
}
static inline int ext3_journal_blocks_per_page(struct inode *inode)
static inline int ext4_journal_blocks_per_page(struct inode *inode)
{
return journal_blocks_per_page(inode);
}
static inline int ext3_journal_force_commit(journal_t *journal)
static inline int ext4_journal_force_commit(journal_t *journal)
{
return journal_force_commit(journal);
}
/* super.c */
int ext3_force_commit(struct super_block *sb);
int ext4_force_commit(struct super_block *sb);
static inline int ext3_should_journal_data(struct inode *inode)
static inline int ext4_should_journal_data(struct inode *inode)
{
if (!S_ISREG(inode->i_mode))
return 1;
if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA)
if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA)
return 1;
if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
if (EXT4_I(inode)->i_flags & EXT4_JOURNAL_DATA_FL)
return 1;
return 0;
}
static inline int ext3_should_order_data(struct inode *inode)
static inline int ext4_should_order_data(struct inode *inode)
{
if (!S_ISREG(inode->i_mode))
return 0;
if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
if (EXT4_I(inode)->i_flags & EXT4_JOURNAL_DATA_FL)
return 0;
if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA)
if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA)
return 1;
return 0;
}
static inline int ext3_should_writeback_data(struct inode *inode)
static inline int ext4_should_writeback_data(struct inode *inode)
{
if (!S_ISREG(inode->i_mode))
return 0;
if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
if (EXT4_I(inode)->i_flags & EXT4_JOURNAL_DATA_FL)
return 0;
if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)
if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_WRITEBACK_DATA)
return 1;
return 0;
}
#endif /* _LINUX_EXT3_JBD_H */
#endif /* _LINUX_EXT4_JBD_H */