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authorAl Viro <viro@zeniv.linux.org.uk>2019-04-26 20:37:25 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2019-04-26 20:37:25 +0300
commit25b229dff4ffffd0fad2dd409faf1e2ae4d94866 (patch)
tree386d48b43faefef9e636e88641b5bdb4668da297 /include/linux/fsnotify.h
parentf4ec3a3d43bcdcf6295af9f3715a5a33f59bb6ce (diff)
downloadlinux-25b229dff4ffffd0fad2dd409faf1e2ae4d94866.tar.xz
fsnotify(): switch to passing const struct qstr * for file_name
Note that in fnsotify_move() and fsnotify_link() we are guaranteed that dentry->d_name won't change during the fsnotify() evaluation (by having the parent directory locked exclusive), so we don't need to fetch dentry->d_name.name in the callers. In fsnotify_dirent() the same stability of dentry->d_name is also true, but it's a bit more convoluted - there is one callchain (devpts_pty_new() -> fsnotify_create() -> fsnotify_dirent()) where the parent is _not_ locked, but on devpts ->d_name of everything is unchanging; it has neither explicit nor implicit renames. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/fsnotify.h')
-rw-r--r--include/linux/fsnotify.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index f816bd29b82c..0c0ef3078a22 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -27,7 +27,7 @@ static inline int fsnotify_dirent(struct inode *dir, struct dentry *dentry,
__u32 mask)
{
return fsnotify(dir, mask, d_inode(dentry), FSNOTIFY_EVENT_INODE,
- dentry->d_name.name, 0);
+ &dentry->d_name, 0);
}
/* Notify this dentry's parent about a child's events. */
@@ -111,7 +111,7 @@ 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;
+ const struct qstr *new_name = &moved->d_name;
if (old_dir == new_dir)
old_dir_mask |= FS_DN_RENAME;
@@ -122,7 +122,7 @@ 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->name,
+ 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);
@@ -178,7 +178,7 @@ static inline void fsnotify_nameremove(struct dentry *dentry, int isdir)
take_dentry_name_snapshot(&name, dentry);
fsnotify(d_inode(parent), mask, d_inode(dentry), FSNOTIFY_EVENT_INODE,
- name.name.name, 0);
+ &name.name, 0);
release_dentry_name_snapshot(&name);
dput(parent);
@@ -218,7 +218,7 @@ static inline void fsnotify_link(struct inode *dir, struct inode *inode, struct
fsnotify_link_count(inode);
audit_inode_child(dir, new_dentry, AUDIT_TYPE_CHILD_CREATE);
- fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE, new_dentry->d_name.name, 0);
+ fsnotify(dir, FS_CREATE, inode, FSNOTIFY_EVENT_INODE, &new_dentry->d_name, 0);
}
/*