in untag_chunk() we need to do alloc_chunk() a bit earlier
... while we are not holding spinlocks.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index 7f18d3a..37b2bea 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -223,7 +223,7 @@
{
struct audit_chunk *chunk = find_chunk(p);
struct fsnotify_mark *entry = &chunk->mark;
- struct audit_chunk *new;
+ struct audit_chunk *new = NULL;
struct audit_tree *owner;
int size = chunk->count - 1;
int i, j;
@@ -232,9 +232,14 @@
spin_unlock(&hash_lock);
+ if (size)
+ new = alloc_chunk(size);
+
spin_lock(&entry->lock);
if (chunk->dead || !entry->i.inode) {
spin_unlock(&entry->lock);
+ if (new)
+ free_chunk(new);
goto out;
}
@@ -255,9 +260,9 @@
goto out;
}
- new = alloc_chunk(size);
if (!new)
goto Fallback;
+
fsnotify_duplicate_mark(&new->mark, entry);
if (fsnotify_add_mark(&new->mark, new->mark.group, new->mark.i.inode, NULL, 1)) {
free_chunk(new);