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| author | Eric Paris <eparis@redhat.com> | 2010-07-28 10:18:37 -0400 |
|---|---|---|
| committer | Eric Paris <eparis@redhat.com> | 2010-07-28 10:18:51 -0400 |
| commit | 3bcf3860a4ff9bbc522820b4b765e65e4deceb3e (patch) | |
| tree | 1e235af133559062c6fdee840ff9698f1dee26a6 /fs/notify/fsnotify.c | |
| parent | f70ab54cc6c3907b0727ba332b3976f80f3846d0 (diff) | |
| download | linux-3bcf3860a4ff9bbc522820b4b765e65e4deceb3e.tar.gz linux-3bcf3860a4ff9bbc522820b4b765e65e4deceb3e.tar.bz2 linux-3bcf3860a4ff9bbc522820b4b765e65e4deceb3e.zip | |
fsnotify: store struct file not struct path
Al explains that calling dentry_open() with a mnt/dentry pair is only
garunteed to be safe if they are already used in an open struct file. To
make sure this is the case don't store and use a struct path in fsnotify,
always use a struct file.
Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'fs/notify/fsnotify.c')
| -rw-r--r-- | fs/notify/fsnotify.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c index 72aae4045314..4788c866473a 100644 --- a/fs/notify/fsnotify.c +++ b/fs/notify/fsnotify.c @@ -84,7 +84,7 @@ void __fsnotify_update_child_dentry_flags(struct inode *inode) } /* Notify this dentry's parent about a child's events. */ -void __fsnotify_parent(struct path *path, struct dentry *dentry, __u32 mask) +void __fsnotify_parent(struct file *file, struct dentry *dentry, __u32 mask) { struct dentry *parent; struct inode *p_inode; @@ -92,7 +92,7 @@ void __fsnotify_parent(struct path *path, struct dentry *dentry, __u32 mask) bool should_update_children = false; if (!dentry) - dentry = path->dentry; + dentry = file->f_path.dentry; if (!(dentry->d_flags & DCACHE_FSNOTIFY_PARENT_WATCHED)) return; @@ -124,8 +124,8 @@ void __fsnotify_parent(struct path *path, struct dentry *dentry, __u32 mask) * specifies these are events which came from a child. */ mask |= FS_EVENT_ON_CHILD; - if (path) - fsnotify(p_inode, mask, path, FSNOTIFY_EVENT_PATH, + if (file) + fsnotify(p_inode, mask, file, FSNOTIFY_EVENT_FILE, dentry->d_name.name, 0); else fsnotify(p_inode, mask, dentry->d_inode, FSNOTIFY_EVENT_INODE, @@ -154,10 +154,10 @@ void __fsnotify_flush_ignored_mask(struct inode *inode, void *data, int data_is) spin_unlock(&inode->i_lock); } - if (data_is == FSNOTIFY_EVENT_PATH) { + if (data_is == FSNOTIFY_EVENT_FILE) { struct vfsmount *mnt; - mnt = ((struct path *)data)->mnt; + mnt = ((struct file *)data)->f_path.mnt; if (mnt && !hlist_empty(&mnt->mnt_fsnotify_marks)) { spin_lock(&mnt->mnt_root->d_lock); hlist_for_each_entry(mark, node, &mnt->mnt_fsnotify_marks, m.m_list) { @@ -228,8 +228,8 @@ int fsnotify(struct inode *to_tell, __u32 mask, void *data, int data_is, !(test_mask & fsnotify_vfsmount_mask)) return 0; - if (data_is == FSNOTIFY_EVENT_PATH) - mnt = ((struct path *)data)->mnt; + if (data_is == FSNOTIFY_EVENT_FILE) + mnt = ((struct file *)data)->f_path.mnt; /* if this inode's directed listeners don't care and nothing on the vfsmount * listeners list cares, nothing to do */ |