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@xxxxxx>
---
fs/notify/dnotify/dnotify.c | 4 ++--
fs/notify/fanotify/fanotify_user.c | 4 ++--
fs/notify/inode_mark.c | 10 +++++++++-
fs/notify/inotify/inotify_fsnotify.c | 2 +-
fs/notify/inotify/inotify_user.c | 2 +-
fs/notify/mark.c | 21 ++++-----------------
fs/notify/vfsmount_mark.c | 10 +++++++++-
include/linux/fsnotify_backend.h | 5 +++--
kernel/audit_tree.c | 10 +++++-----
kernel/audit_watch.c | 4 ++--
10 files changed, 38 insertions(+), 34 deletions(-)
diff --git a/fs/notify/dnotify/dnotify.c b/fs/notify/dnotify/dnotify.c
index 3344bdd..08b886f 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 8424bee..88630be 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -548,7 +548,7 @@ 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 & mnt->mnt_fsnotify_mask)
@@ -572,7 +572,7 @@ 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 d14ff75..e0a02d8 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 74977fb..871569c 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 246250f..00ff82f 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 bfb148e..5c335de 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;
@@ -192,9 +182,6 @@ void fsnotify_destroy_mark(struct fsnotify_mark *mark)
if (inode && (mark->flags & FSNOTIFY_MARK_FLAG_OBJECT_PINNED))
iput(inode);
atomic_dec(&group->num_marks);
-
-put_group:
- fsnotify_put_group(group);
}
void fsnotify_set_mark_mask_locked(struct fsnotify_mark *mark, __u32 mask)
@@ -305,7 +292,7 @@ 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 8d09677..53987c6 100644
--- a/fs/notify/vfsmount_mark.c
+++ b/fs/notify/vfsmount_mark.c
@@ -44,8 +44,16 @@ 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);
}
}
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index b0c3908..acf5f6d 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -408,8 +408,9 @@ extern void fsnotify_set_mark_mask_locked(struct fsnotify_mark *mark, __u32 mask
/* attach the mark to both the group and the inode */
extern int fsnotify_add_mark(struct fsnotify_mark *mark, struct fsnotify_group *group,
struct inode *inode, struct vfsmount *mnt, int allow_dups);
-/* given a mark, flag it to be freed when all references are dropped */
-extern void fsnotify_destroy_mark(struct fsnotify_mark *mark);
+/* given a group and a mark, flag mark to be freed when all references are dropped */
+extern void fsnotify_destroy_mark(struct fsnotify_mark *mark,
+ struct fsnotify_group *group);
/* run all the marks in a group, and clear all of the vfsmount marks */
extern void fsnotify_clear_vfsmount_marks_by_group(struct fsnotify_group *group);
/* run all the marks in a group, and clear all of the inode marks */
diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index e99dda0..01c0d05 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -255,7 +255,7 @@ static void untag_chunk(struct node *p)
list_del_rcu(&chunk->hash);
spin_unlock(&hash_lock);
spin_unlock(&entry->lock);
- fsnotify_destroy_mark(entry);
+ fsnotify_destroy_mark(entry, audit_tree_group);
fsnotify_put_mark(entry);
goto out;
}
@@ -298,7 +298,7 @@ static void untag_chunk(struct node *p)
owner->root = new;
spin_unlock(&hash_lock);
spin_unlock(&entry->lock);
- fsnotify_destroy_mark(entry);
+ fsnotify_destroy_mark(entry, audit_tree_group);
fsnotify_put_mark(entry);
goto out;
@@ -338,7 +338,7 @@ static int create_chunk(struct inode *inode, struct audit_tree *tree)
spin_unlock(&hash_lock);
chunk->dead = 1;
spin_unlock(&entry->lock);
- fsnotify_destroy_mark(entry);
+ fsnotify_destroy_mark(entry, audit_tree_group);
fsnotify_put_mark(entry);
return 0;
}
@@ -418,7 +418,7 @@ static int tag_chunk(struct inode *inode, struct audit_tree *tree)
spin_unlock(&chunk_entry->lock);
spin_unlock(&old_entry->lock);
- fsnotify_destroy_mark(chunk_entry);
+ fsnotify_destroy_mark(chunk_entry, audit_tree_group);
fsnotify_put_mark(chunk_entry);
fsnotify_put_mark(old_entry);
@@ -449,7 +449,7 @@ static int tag_chunk(struct inode *inode, struct audit_tree *tree)
spin_unlock(&hash_lock);
spin_unlock(&chunk_entry->lock);
spin_unlock(&old_entry->lock);
- fsnotify_destroy_mark(old_entry);
+ fsnotify_destroy_mark(old_entry, audit_tree_group);
fsnotify_put_mark(old_entry); /* pair to fsnotify_find mark_entry */
fsnotify_put_mark(old_entry); /* and kill it */
return 0;
diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c
index e683869..a0825e7 100644
--- a/kernel/audit_watch.c
+++ b/kernel/audit_watch.c
@@ -349,7 +349,7 @@ static void audit_remove_parent_watches(struct audit_parent *parent)
}
mutex_unlock(&audit_filter_mutex);
- fsnotify_destroy_mark(&parent->mark);
+ fsnotify_destroy_mark(&parent->mark, audit_watch_group);
}
/* Get path information necessary for adding watches. */
@@ -475,7 +475,7 @@ void audit_remove_watch_rule(struct audit_krule *krule)
if (list_empty(&parent->watches)) {
audit_get_parent(parent);
- fsnotify_destroy_mark(&parent->mark);
+ fsnotify_destroy_mark(&parent->mark, audit_watch_group);
audit_put_parent(parent);
}
}
--
1.5.6.5
--
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