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iversion: Rename make inode_cmp_iversion{+raw} to inode_eq_iversion{+raw} 

The function inode_cmp_iversion{+raw} is counter-intuitive, because it
returns true when the counters are different and false when these are equal.

Rename it to inode_eq_iversion{+raw}, which will returns true when
the counters are equal and false otherwise.

Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
This commit is contained in:
Goffredo Baroncelli 2018-02-01 08:15:25 -05:00 committed by Jeff Layton
parent 255442c938
commit c472c07bfe
11 changed files with 25 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/affs/dir.c
View File

@ -81,7 +81,7 @@ affs_readdir(struct file *file, struct dir_context *ctx)
* we can jump directly to where we left off.
*/
ino = (u32)(long)file->private_data;
if (ino && inode_cmp_iversion(inode, file->f_version) == 0) {
if (ino && inode_eq_iversion(inode, file->f_version)) {
pr_debug("readdir() left off=%d\n", ino);
goto inside;
}

2
fs/exofs/dir.c
View File

@ -242,7 +242,7 @@ exofs_readdir(struct file *file, struct dir_context *ctx)
unsigned long n = pos >> PAGE_SHIFT;
unsigned long npages = dir_pages(inode);
unsigned chunk_mask = ~(exofs_chunk_size(inode)-1);
bool need_revalidate = inode_cmp_iversion(inode, file->f_version);
bool need_revalidate = !inode_eq_iversion(inode, file->f_version);
if (pos > inode->i_size - EXOFS_DIR_REC_LEN(1))
return 0;

2
fs/ext2/dir.c
View File

@ -294,7 +294,7 @@ ext2_readdir(struct file *file, struct dir_context *ctx)
unsigned long npages = dir_pages(inode);
unsigned chunk_mask = ~(ext2_chunk_size(inode)-1);
unsigned char *types = NULL;
bool need_revalidate = inode_cmp_iversion(inode, file->f_version);
bool need_revalidate = !inode_eq_iversion(inode, file->f_version);
if (pos > inode->i_size - EXT2_DIR_REC_LEN(1))
return 0;

4
fs/ext4/dir.c
View File

@ -209,7 +209,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
* readdir(2), then we might be pointing to an invalid
* dirent right now. Scan from the start of the block
* to make sure. */
if (inode_cmp_iversion(inode, file->f_version)) {
if (!inode_eq_iversion(inode, file->f_version)) {
for (i = 0; i < sb->s_blocksize && i < offset; ) {
de = (struct ext4_dir_entry_2 *)
(bh->b_data + i);
@ -569,7 +569,7 @@ static int ext4_dx_readdir(struct file *file, struct dir_context *ctx)
* cached entries.
*/
if ((!info->curr_node) ||
inode_cmp_iversion(inode, file->f_version)) {
!inode_eq_iversion(inode, file->f_version)) {
info->curr_node = NULL;
free_rb_tree_fname(&info->root);
file->f_version = inode_query_iversion(inode);

2
fs/ext4/inline.c
View File

@ -1495,7 +1495,7 @@ int ext4_read_inline_dir(struct file *file,
* dirent right now. Scan from the start of the inline
* dir to make sure.
*/
if (inode_cmp_iversion(inode, file->f_version)) {
if (!inode_eq_iversion(inode, file->f_version)) {
for (i = 0; i < extra_size && i < offset;) {
/*
* "." is with offset 0 and

2
fs/fat/namei_vfat.c
View File

@ -46,7 +46,7 @@ static int vfat_revalidate_shortname(struct dentry *dentry)
{
int ret = 1;
spin_lock(&dentry->d_lock);
if (inode_cmp_iversion(d_inode(dentry->d_parent), vfat_d_version(dentry)))
if (!inode_eq_iversion(d_inode(dentry->d_parent), vfat_d_version(dentry)))
ret = 0;
spin_unlock(&dentry->d_lock);
return ret;

6
fs/nfs/inode.c
View File

@ -1314,7 +1314,7 @@ static unsigned long nfs_wcc_update_inode(struct inode *inode, struct nfs_fattr
if ((fattr->valid & NFS_ATTR_FATTR_PRECHANGE)
&& (fattr->valid & NFS_ATTR_FATTR_CHANGE)
&& !inode_cmp_iversion_raw(inode, fattr->pre_change_attr)) {
&& inode_eq_iversion_raw(inode, fattr->pre_change_attr)) {
inode_set_iversion_raw(inode, fattr->change_attr);
if (S_ISDIR(inode->i_mode))
nfs_set_cache_invalid(inode, NFS_INO_INVALID_DATA);
@ -1373,7 +1373,7 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat
if (!nfs_file_has_buffered_writers(nfsi)) {
/* Verify a few of the more important attributes */
if ((fattr->valid & NFS_ATTR_FATTR_CHANGE) != 0 && inode_cmp_iversion_raw(inode, fattr->change_attr))
if ((fattr->valid & NFS_ATTR_FATTR_CHANGE) != 0 && !inode_eq_iversion_raw(inode, fattr->change_attr))
invalid |= NFS_INO_INVALID_ATTR | NFS_INO_REVAL_PAGECACHE;
if ((fattr->valid & NFS_ATTR_FATTR_MTIME) && !timespec_equal(&inode->i_mtime, &fattr->mtime))
@ -1803,7 +1803,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
/* More cache consistency checks */
if (fattr->valid & NFS_ATTR_FATTR_CHANGE) {
if (inode_cmp_iversion_raw(inode, fattr->change_attr)) {
if (!inode_eq_iversion_raw(inode, fattr->change_attr)) {
dprintk("NFS: change_attr change on server for file %s/%ld\n",
inode->i_sb->s_id, inode->i_ino);
/* Could it be a race with writeback? */

4
fs/ocfs2/dir.c
View File

@ -1776,7 +1776,7 @@ static int ocfs2_dir_foreach_blk_id(struct inode *inode,
* readdir(2), then we might be pointing to an invalid
* dirent right now. Scan from the start of the block
* to make sure. */
if (inode_cmp_iversion(inode, *f_version)) {
if (!inode_eq_iversion(inode, *f_version)) {
for (i = 0; i < i_size_read(inode) && i < offset; ) {
de = (struct ocfs2_dir_entry *)
(data->id_data + i);
@ -1870,7 +1870,7 @@ static int ocfs2_dir_foreach_blk_el(struct inode *inode,
* readdir(2), then we might be pointing to an invalid
* dirent right now. Scan from the start of the block
* to make sure. */
if (inode_cmp_iversion(inode, *f_version)) {
if (!inode_eq_iversion(inode, *f_version)) {
for (i = 0; i < sb->s_blocksize && i < offset; ) {
de = (struct ocfs2_dir_entry *) (bh->b_data + i);
/* It's too expensive to do a full

2
fs/ufs/dir.c
View File

@ -429,7 +429,7 @@ ufs_readdir(struct file *file, struct dir_context *ctx)
unsigned long n = pos >> PAGE_SHIFT;
unsigned long npages = dir_pages(inode);
unsigned chunk_mask = ~(UFS_SB(sb)->s_uspi->s_dirblksize - 1);
bool need_revalidate = inode_cmp_iversion(inode, file->f_version);
bool need_revalidate = !inode_eq_iversion(inode, file->f_version);
unsigned flags = UFS_SB(sb)->s_flags;
UFSD("BEGIN\n");

22
include/linux/iversion.h
View File

@ -45,7 +45,7 @@
*
* With this implementation, the value should always appear to observers to
* increase over time if the file has changed. It's recommended to use
* inode_cmp_iversion() helper to compare values.
* inode_eq_iversion() helper to compare values.
*
* Note that some filesystems (e.g. NFS and AFS) just use the field to store
* a server-provided value (for the most part). For that reason, those
@ -305,33 +305,33 @@ inode_query_iversion(struct inode *inode)
}
/**
* inode_cmp_iversion_raw - check whether the raw i_version counter has changed
* inode_eq_iversion_raw - check whether the raw i_version counter has changed
* @inode: inode to check
* @old: old value to check against its i_version
*
* Compare the current raw i_version counter with a previous one. Returns false
* if they are the same or true if they are different.
* Compare the current raw i_version counter with a previous one. Returns true
* if they are the same or false if they are different.
*/
static inline bool
inode_cmp_iversion_raw(const struct inode *inode, u64 old)
inode_eq_iversion_raw(const struct inode *inode, u64 old)
{
return inode_peek_iversion_raw(inode) != old;
return inode_peek_iversion_raw(inode) == old;
}
/**
* inode_cmp_iversion - check whether the i_version counter has changed
* inode_eq_iversion - check whether the i_version counter has changed
* @inode: inode to check
* @old: old value to check against its i_version
*
* Compare an i_version counter with a previous one. Returns false if they are
* the same, and true if they are different.
* Compare an i_version counter with a previous one. Returns true if they are
* the same, and false if they are different.
*
* Note that we don't need to set the QUERIED flag in this case, as the value
* in the inode is not being recorded for later use.
*/
static inline bool
inode_cmp_iversion(const struct inode *inode, u64 old)
inode_eq_iversion(const struct inode *inode, u64 old)
{
return inode_peek_iversion(inode) != old;
return inode_peek_iversion(inode) == old;
}
#endif

2
security/integrity/ima/ima_main.c
View File

@ -135,7 +135,7 @@ static void ima_check_last_writer(struct integrity_iint_cache *iint,
update = test_and_clear_bit(IMA_UPDATE_XATTR,
&iint->atomic_flags);
if (!IS_I_VERSION(inode) ||
inode_cmp_iversion(inode, iint->version) ||
!inode_eq_iversion(inode, iint->version) ||
(iint->flags & IMA_NEW_FILE)) {
iint->flags &= ~(IMA_DONE_MASK | IMA_NEW_FILE);
iint->measured_pcrs = 0;