[PATCH 2/5] fsnotify: have fsnotify_move take a struct qstr instead of a string

Jeff Layton
2019-04-26T18:29:20Z

With this, ovl_lookup_real_one can skip the strlen call.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
fs/debugfs/inode.c | 2 +-
fs/namei.c | 4 ++--
include/linux/fsnotify.h | 11 +++++------
3 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 37c0a025d7e8..5dbeefa69a58 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -824,7 +824,7 @@ struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
goto exit;
}
d_move(old_dentry, dentry);
- fsnotify_move(d_inode(old_dir), d_inode(new_dir), old_name.name.name,
+ fsnotify_move(d_inode(old_dir), d_inode(new_dir), &old_name.name,
d_is_dir(old_dentry),
NULL, old_dentry);
release_dentry_name_snapshot(&old_name);
diff --git a/fs/namei.c b/fs/namei.c
index c96713077326..5ebd64b21970 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -4498,10 +4498,10 @@ int vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
inode_unlock(target);
dput(new_dentry);
if (!error) {
- fsnotify_move(old_dir, new_dir, old_name.name.name, is_dir,
+ fsnotify_move(old_dir, new_dir, &old_name.name, is_dir,
!(flags & RENAME_EXCHANGE) ? target : NULL, old_dentry);
if (flags & RENAME_EXCHANGE) {
- fsnotify_move(new_dir, old_dir, old_dentry->d_name.name,
+ fsnotify_move(new_dir, old_dir, &old_dentry->d_name,
new_is_dir, NULL, new_dentry);
}
}
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index e09cfff69bb2..2de90a7e388b 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -102,7 +102,7 @@ static inline void fsnotify_link_count(struct inode *inode)
* fsnotify_move - file old_name at old_dir was moved to new_name at new_dir
*/
static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
- const unsigned char *old_name,
+ const struct qstr *old_name,
int isdir, struct inode *target,
struct dentry *moved)
{
@@ -111,7 +111,6 @@ static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
__u32 old_dir_mask = FS_MOVED_FROM;
__u32 new_dir_mask = FS_MOVED_TO;
__u32 mask = FS_MOVE_SELF;
- const unsigned char *new_name = moved->d_name.name;

if (old_dir == new_dir)
old_dir_mask |= FS_DN_RENAME;
@@ -122,10 +121,10 @@ static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
mask |= FS_ISDIR;
}

- fsnotify(old_dir, old_dir_mask, source, FSNOTIFY_EVENT_INODE, old_name,
- fs_cookie);
- fsnotify(new_dir, new_dir_mask, source, FSNOTIFY_EVENT_INODE, new_name,
- fs_cookie);
+ fsnotify(old_dir, old_dir_mask, source, FSNOTIFY_EVENT_INODE,
+ old_name->name, fs_cookie);
+ fsnotify(new_dir, new_dir_mask, source, FSNOTIFY_EVENT_INODE,
+ moved->d_name.name, fs_cookie);

if (target)
fsnotify_link_count(target);
--
2.20.1