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authorLino Sanfilippo <LinoSanfilippo@gmx.de>2011-06-14 17:29:51 +0200
committerEric Paris <eparis@redhat.com>2012-12-11 13:44:36 -0500
commite2a29943e9a2ee2aa737a77f550f46ba72269db4 (patch)
treecf0275eeed130433df241f115cbd2f9ebea96e7f /fs/notify
parent986ab09807ca9454c3f54aae4db7e1bb00daeed3 (diff)
downloadlinux-linaro-stable-e2a29943e9a2ee2aa737a77f550f46ba72269db4.tar.gz
fsnotify: pass group to fsnotify_destroy_mark()
In fsnotify_destroy_mark() dont get the group from the passed mark anymore, but pass the group itself as an additional parameter to the function. Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de> Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'fs/notify')
-rw-r--r--fs/notify/dnotify/dnotify.c4
-rw-r--r--fs/notify/fanotify/fanotify_user.c4
-rw-r--r--fs/notify/inode_mark.c10
-rw-r--r--fs/notify/inotify/inotify_fsnotify.c2
-rw-r--r--fs/notify/inotify/inotify_user.c2
-rw-r--r--fs/notify/mark.c21
-rw-r--r--fs/notify/vfsmount_mark.c10
7 files changed, 28 insertions, 25 deletions
diff --git a/fs/notify/dnotify/dnotify.c b/fs/notify/dnotify/dnotify.c
index 3344bdd5506e..08b886f119ce 100644
--- a/fs/notify/dnotify/dnotify.c
+++ b/fs/notify/dnotify/dnotify.c
@@ -201,7 +201,7 @@ void dnotify_flush(struct file *filp, fl_owner_t id)
/* nothing else could have found us thanks to the dnotify_mark_mutex */
if (dn_mark->dn == NULL)
- fsnotify_destroy_mark(fsn_mark);
+ fsnotify_destroy_mark(fsn_mark, dnotify_group);
mutex_unlock(&dnotify_mark_mutex);
@@ -385,7 +385,7 @@ out:
spin_unlock(&fsn_mark->lock);
if (destroy)
- fsnotify_destroy_mark(fsn_mark);
+ fsnotify_destroy_mark(fsn_mark, dnotify_group);
mutex_unlock(&dnotify_mark_mutex);
fsnotify_put_mark(fsn_mark);
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index 599a01952c74..1218d10424d0 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -546,7 +546,7 @@ static int fanotify_remove_vfsmount_mark(struct fsnotify_group *group,
removed = fanotify_mark_remove_from_mask(fsn_mark, mask, flags,
&destroy_mark);
if (destroy_mark)
- fsnotify_destroy_mark(fsn_mark);
+ fsnotify_destroy_mark(fsn_mark, group);
fsnotify_put_mark(fsn_mark);
if (removed & real_mount(mnt)->mnt_fsnotify_mask)
@@ -570,7 +570,7 @@ static int fanotify_remove_inode_mark(struct fsnotify_group *group,
removed = fanotify_mark_remove_from_mask(fsn_mark, mask, flags,
&destroy_mark);
if (destroy_mark)
- fsnotify_destroy_mark(fsn_mark);
+ fsnotify_destroy_mark(fsn_mark, group);
/* matches the fsnotify_find_inode_mark() */
fsnotify_put_mark(fsn_mark);
if (removed & inode->i_fsnotify_mask)
diff --git a/fs/notify/inode_mark.c b/fs/notify/inode_mark.c
index 4e9071e37d5d..21230209c957 100644
--- a/fs/notify/inode_mark.c
+++ b/fs/notify/inode_mark.c
@@ -99,8 +99,16 @@ void fsnotify_clear_marks_by_inode(struct inode *inode)
spin_unlock(&inode->i_lock);
list_for_each_entry_safe(mark, lmark, &free_list, i.free_i_list) {
- fsnotify_destroy_mark(mark);
+ struct fsnotify_group *group;
+
+ spin_lock(&mark->lock);
+ fsnotify_get_group(mark->group);
+ group = mark->group;
+ spin_unlock(&mark->lock);
+
+ fsnotify_destroy_mark(mark, group);
fsnotify_put_mark(mark);
+ fsnotify_put_group(group);
}
}
diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c
index 74977fbf5aae..871569c7d609 100644
--- a/fs/notify/inotify/inotify_fsnotify.c
+++ b/fs/notify/inotify/inotify_fsnotify.c
@@ -132,7 +132,7 @@ static int inotify_handle_event(struct fsnotify_group *group,
}
if (inode_mark->mask & IN_ONESHOT)
- fsnotify_destroy_mark(inode_mark);
+ fsnotify_destroy_mark(inode_mark, group);
return ret;
}
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 246250f1db7a..00ff82ff7c9f 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -816,7 +816,7 @@ SYSCALL_DEFINE2(inotify_rm_watch, int, fd, __s32, wd)
ret = 0;
- fsnotify_destroy_mark(&i_mark->fsn_mark);
+ fsnotify_destroy_mark(&i_mark->fsn_mark, group);
/* match ref taken by inotify_idr_find */
fsnotify_put_mark(&i_mark->fsn_mark);
diff --git a/fs/notify/mark.c b/fs/notify/mark.c
index ab25b810b146..b77c833c8d0a 100644
--- a/fs/notify/mark.c
+++ b/fs/notify/mark.c
@@ -121,21 +121,11 @@ void fsnotify_put_mark(struct fsnotify_mark *mark)
* The caller had better be holding a reference to this mark so we don't actually
* do the final put under the mark->lock
*/
-void fsnotify_destroy_mark(struct fsnotify_mark *mark)
+void fsnotify_destroy_mark(struct fsnotify_mark *mark,
+ struct fsnotify_group *group)
{
- struct fsnotify_group *group;
struct inode *inode = NULL;
- spin_lock(&mark->lock);
- /* dont get the group from a mark that is not alive yet */
- if (!(mark->flags & FSNOTIFY_MARK_FLAG_ALIVE)) {
- spin_unlock(&mark->lock);
- return;
- }
- fsnotify_get_group(mark->group);
- group = mark->group;
- spin_unlock(&mark->lock);
-
mutex_lock(&group->mark_mutex);
spin_lock(&mark->lock);
@@ -143,7 +133,7 @@ void fsnotify_destroy_mark(struct fsnotify_mark *mark)
if (!(mark->flags & FSNOTIFY_MARK_FLAG_ALIVE)) {
spin_unlock(&mark->lock);
mutex_unlock(&group->mark_mutex);
- goto put_group;
+ return;
}
mark->flags &= ~FSNOTIFY_MARK_FLAG_ALIVE;
@@ -194,9 +184,6 @@ void fsnotify_destroy_mark(struct fsnotify_mark *mark)
*/
atomic_dec(&group->num_marks);
-
-put_group:
- fsnotify_put_group(group);
}
void fsnotify_set_mark_mask_locked(struct fsnotify_mark *mark, __u32 mask)
@@ -307,7 +294,7 @@ void fsnotify_clear_marks_by_group_flags(struct fsnotify_group *group,
mutex_unlock(&group->mark_mutex);
list_for_each_entry_safe(mark, lmark, &free_list, free_g_list) {
- fsnotify_destroy_mark(mark);
+ fsnotify_destroy_mark(mark, group);
fsnotify_put_mark(mark);
}
}
diff --git a/fs/notify/vfsmount_mark.c b/fs/notify/vfsmount_mark.c
index f26a348827f8..4df58b8ea64a 100644
--- a/fs/notify/vfsmount_mark.c
+++ b/fs/notify/vfsmount_mark.c
@@ -46,8 +46,16 @@ void fsnotify_clear_marks_by_mount(struct vfsmount *mnt)
spin_unlock(&mnt->mnt_root->d_lock);
list_for_each_entry_safe(mark, lmark, &free_list, m.free_m_list) {
- fsnotify_destroy_mark(mark);
+ struct fsnotify_group *group;
+
+ spin_lock(&mark->lock);
+ fsnotify_get_group(mark->group);
+ group = mark->group;
+ spin_unlock(&mark->lock);
+
+ fsnotify_destroy_mark(mark, group);
fsnotify_put_mark(mark);
+ fsnotify_put_group(group);
}
}