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| author | Christian Brauner <brauner@kernel.org> | 2024-08-30 15:04:54 +0200 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2024-09-12 11:58:44 +0200 |
| commit | ceaa5e80db7c73321c89fda39c3c8c78817aecd2 (patch) | |
| tree | 76d38c3304926a18a8338b3711166e0fc93c60df /fs/ocfs2 | |
| parent | 7a7ce8b3ba66754f5d275a71630b4ee8b507d266 (diff) | |
| download | lwn-ceaa5e80db7c73321c89fda39c3c8c78817aecd2.tar.gz lwn-ceaa5e80db7c73321c89fda39c3c8c78817aecd2.zip | |
ocfs2: store cookie in private data
Store the cookie to detect concurrent seeks on directories in
file->private_data.
Link: https://lore.kernel.org/r/20240830-vfs-file-f_version-v1-13-6d3e4816aa7b@kernel.org
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/ocfs2')
| -rw-r--r-- | fs/ocfs2/dir.c | 3 | ||||
| -rw-r--r-- | fs/ocfs2/file.c | 11 | ||||
| -rw-r--r-- | fs/ocfs2/file.h | 1 |
3 files changed, 12 insertions, 3 deletions
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c index f0beb173dbba..ccef3f42b333 100644 --- a/fs/ocfs2/dir.c +++ b/fs/ocfs2/dir.c @@ -1932,6 +1932,7 @@ int ocfs2_readdir(struct file *file, struct dir_context *ctx) { int error = 0; struct inode *inode = file_inode(file); + struct ocfs2_file_private *fp = file->private_data; int lock_level = 0; trace_ocfs2_readdir((unsigned long long)OCFS2_I(inode)->ip_blkno); @@ -1952,7 +1953,7 @@ int ocfs2_readdir(struct file *file, struct dir_context *ctx) goto bail_nolock; } - error = ocfs2_dir_foreach_blk(inode, &file->f_version, ctx, false); + error = ocfs2_dir_foreach_blk(inode, &fp->cookie, ctx, false); ocfs2_inode_unlock(inode, lock_level); if (error) diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index ccc57038a977..115ab2172820 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -2750,6 +2750,13 @@ out_unlock: return remapped > 0 ? remapped : ret; } +static loff_t ocfs2_dir_llseek(struct file *file, loff_t offset, int whence) +{ + struct ocfs2_file_private *fp = file->private_data; + + return generic_llseek_cookie(file, offset, whence, &fp->cookie); +} + const struct inode_operations ocfs2_file_iops = { .setattr = ocfs2_setattr, .getattr = ocfs2_getattr, @@ -2797,7 +2804,7 @@ const struct file_operations ocfs2_fops = { WRAP_DIR_ITER(ocfs2_readdir) // FIXME! const struct file_operations ocfs2_dops = { - .llseek = generic_file_llseek, + .llseek = ocfs2_dir_llseek, .read = generic_read_dir, .iterate_shared = shared_ocfs2_readdir, .fsync = ocfs2_sync_file, @@ -2843,7 +2850,7 @@ const struct file_operations ocfs2_fops_no_plocks = { }; const struct file_operations ocfs2_dops_no_plocks = { - .llseek = generic_file_llseek, + .llseek = ocfs2_dir_llseek, .read = generic_read_dir, .iterate_shared = shared_ocfs2_readdir, .fsync = ocfs2_sync_file, diff --git a/fs/ocfs2/file.h b/fs/ocfs2/file.h index 8e53e4ac1120..41e65e45a9f3 100644 --- a/fs/ocfs2/file.h +++ b/fs/ocfs2/file.h @@ -20,6 +20,7 @@ struct ocfs2_alloc_context; enum ocfs2_alloc_restarted; struct ocfs2_file_private { + u64 cookie; struct file *fp_file; struct mutex fp_mutex; struct ocfs2_lock_res fp_flock; |