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smb/server: adapt to breakup of struct file_lock

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Most of the existing APIs have remained the same, but subsystems that
access file_lock fields directly need to reach into struct
file_lock_core now.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Link: https://lore.kernel.org/r/20240131-flsplit-v3-45-c6129007ee8d@kernel.org
Reviewed-by: NeilBrown <neilb@suse.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Jeff Layton 2024-01-31 18:02:26 -05:00 committed by Christian Brauner
parent 84e286c1bb
commit 16f9ce8189
No known key found for this signature in database
GPG key ID: 91C61BC06578DCA2
2 changed files with 23 additions and 25 deletions
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39
fs/smb/server/smb2pdu.c
View file

@ -12,7 +12,6 @@
#include <linux/ethtool.h>
#include <linux/falloc.h>
#include <linux/mount.h>
#define _NEED_FILE_LOCK_FIELD_MACROS
#include <linux/filelock.h>
#include "glob.h"
@ -6761,10 +6760,10 @@ struct file_lock *smb_flock_init(struct file *f)
locks_init_lock(fl);
fl->fl_owner = f;
fl->fl_pid = current->tgid;
fl->fl_file = f;
fl->fl_flags = FL_POSIX;
fl->c.flc_owner = f;
fl->c.flc_pid = current->tgid;
fl->c.flc_file = f;
fl->c.flc_flags = FL_POSIX;
fl->fl_ops = NULL;
fl->fl_lmops = NULL;
@ -6781,30 +6780,30 @@ static int smb2_set_flock_flags(struct file_lock *flock, int flags)
case SMB2_LOCKFLAG_SHARED:
ksmbd_debug(SMB, "received shared request\n");
cmd = F_SETLKW;
flock->fl_type = F_RDLCK;
flock->fl_flags |= FL_SLEEP;
flock->c.flc_type = F_RDLCK;
flock->c.flc_flags |= FL_SLEEP;
break;
case SMB2_LOCKFLAG_EXCLUSIVE:
ksmbd_debug(SMB, "received exclusive request\n");
cmd = F_SETLKW;
flock->fl_type = F_WRLCK;
flock->fl_flags |= FL_SLEEP;
flock->c.flc_type = F_WRLCK;
flock->c.flc_flags |= FL_SLEEP;
break;
case SMB2_LOCKFLAG_SHARED | SMB2_LOCKFLAG_FAIL_IMMEDIATELY:
ksmbd_debug(SMB,
"received shared & fail immediately request\n");
cmd = F_SETLK;
flock->fl_type = F_RDLCK;
flock->c.flc_type = F_RDLCK;
break;
case SMB2_LOCKFLAG_EXCLUSIVE | SMB2_LOCKFLAG_FAIL_IMMEDIATELY:
ksmbd_debug(SMB,
"received exclusive & fail immediately request\n");
cmd = F_SETLK;
flock->fl_type = F_WRLCK;
flock->c.flc_type = F_WRLCK;
break;
case SMB2_LOCKFLAG_UNLOCK:
ksmbd_debug(SMB, "received unlock request\n");
flock->fl_type = F_UNLCK;
flock->c.flc_type = F_UNLCK;
cmd = F_SETLK;
break;
}
@ -6848,7 +6847,7 @@ static void smb2_remove_blocked_lock(void **argv)
static inline bool lock_defer_pending(struct file_lock *fl)
{
/* check pending lock waiters */
return waitqueue_active(&fl->fl_wait);
return waitqueue_active(&fl->c.flc_wait);
}
/**
@ -6939,8 +6938,8 @@ int smb2_lock(struct ksmbd_work *work)
list_for_each_entry(cmp_lock, &lock_list, llist) {
if (cmp_lock->fl->fl_start <= flock->fl_start &&
cmp_lock->fl->fl_end >= flock->fl_end) {
if (cmp_lock->fl->fl_type != F_UNLCK &&
flock->fl_type != F_UNLCK) {
if (cmp_lock->fl->c.flc_type != F_UNLCK &&
flock->c.flc_type != F_UNLCK) {
pr_err("conflict two locks in one request\n");
err = -EINVAL;
locks_free_lock(flock);
@ -6988,12 +6987,12 @@ int smb2_lock(struct ksmbd_work *work)
list_for_each_entry(conn, &conn_list, conns_list) {
spin_lock(&conn->llist_lock);
list_for_each_entry_safe(cmp_lock, tmp2, &conn->lock_list, clist) {
if (file_inode(cmp_lock->fl->fl_file) !=
file_inode(smb_lock->fl->fl_file))
if (file_inode(cmp_lock->fl->c.flc_file) !=
file_inode(smb_lock->fl->c.flc_file))
continue;
if (lock_is_unlock(smb_lock->fl)) {
if (cmp_lock->fl->fl_file == smb_lock->fl->fl_file &&
if (cmp_lock->fl->c.flc_file == smb_lock->fl->c.flc_file &&
cmp_lock->start == smb_lock->start &&
cmp_lock->end == smb_lock->end &&
!lock_defer_pending(cmp_lock->fl)) {
@ -7010,7 +7009,7 @@ int smb2_lock(struct ksmbd_work *work)
continue;
}
if (cmp_lock->fl->fl_file == smb_lock->fl->fl_file) {
if (cmp_lock->fl->c.flc_file == smb_lock->fl->c.flc_file) {
if (smb_lock->flags & SMB2_LOCKFLAG_SHARED)
continue;
} else {
@ -7176,7 +7175,7 @@ int smb2_lock(struct ksmbd_work *work)
struct file_lock *rlock = NULL;
rlock = smb_flock_init(filp);
rlock->fl_type = F_UNLCK;
rlock->c.flc_type = F_UNLCK;
rlock->fl_start = smb_lock->start;
rlock->fl_end = smb_lock->end;

9
fs/smb/server/vfs.c
View file

@ -6,7 +6,6 @@
#include <linux/kernel.h>
#include <linux/fs.h>
#define _NEED_FILE_LOCK_FIELD_MACROS
#include <linux/filelock.h>
#include <linux/uaccess.h>
#include <linux/backing-dev.h>
@ -349,7 +348,7 @@ static int check_lock_range(struct file *filp, loff_t start, loff_t end,
}
} else if (lock_is_write(flock)) {
/* check owner in lock */
if (flock->fl_file != filp) {
if (flock->c.flc_file != filp) {
error = 1;
pr_err("not allow rw access by exclusive lock from other opens\n");
goto out;
@ -1838,13 +1837,13 @@ int ksmbd_vfs_copy_file_ranges(struct ksmbd_work *work,
void ksmbd_vfs_posix_lock_wait(struct file_lock *flock)
{
wait_event(flock->fl_wait, !flock->fl_blocker);
wait_event(flock->c.flc_wait, !flock->c.flc_blocker);
}
int ksmbd_vfs_posix_lock_wait_timeout(struct file_lock *flock, long timeout)
{
return wait_event_interruptible_timeout(flock->fl_wait,
!flock->fl_blocker,
return wait_event_interruptible_timeout(flock->c.flc_wait,
!flock->c.flc_blocker,
timeout);
}