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fuse: set ff->flock only on success

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If FUSE_SETLK fails (e.g., due to EWOULDBLOCK), we shall not set
FUSE_RELEASE_FLOCK_UNLOCK in fuse_file_release().

Reported-by: Li Yichao <liyichao.1@bytedance.com>
Signed-off-by: Zhang Tianci <zhangtianci.1997@bytedance.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Zhang Tianci 2025-12-25 19:11:56 +08:00 committed by Miklos Szeredi
parent ac7304fa1d
commit 71947173ce
1 changed files with 2 additions and 1 deletions
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3
fs/fuse/file.c
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@ -2569,8 +2569,9 @@ static int fuse_file_flock(struct file *file, int cmd, struct file_lock *fl)
struct fuse_file *ff = file->private_data;
/* emulate flock with POSIX locks */
ff->flock = true;
err = fuse_setlk(file, fl, 1);
if (!err)
ff->flock = true;
}
return err;