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author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-27 14:13:33 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-27 14:13:33 (GMT) |
commit | e372dc6c62bf0246a07f3291a26c562cc8659fbd (patch) | |
tree | c7039c1d1005b80e427761ba768d7697ae4a0b72 /kernel/audit_tree.c | |
parent | 5d4121c04b3577e37e389b3553d442f44bb346d7 (diff) | |
parent | fea7a08acb13524b47711625eebea40a0ede69a0 (diff) | |
download | linux-fsl-qoriq-e372dc6c62bf0246a07f3291a26c562cc8659fbd.tar.xz |
Merge 3.6-rc3 into tty-next
This picks up all of the different fixes in Linus's tree that we also need here.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/audit_tree.c')
-rw-r--r-- | kernel/audit_tree.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c index 3a5ca58..ed206fd 100644 --- a/kernel/audit_tree.c +++ b/kernel/audit_tree.c @@ -250,7 +250,6 @@ static void untag_chunk(struct node *p) spin_unlock(&hash_lock); spin_unlock(&entry->lock); fsnotify_destroy_mark(entry); - fsnotify_put_mark(entry); goto out; } @@ -259,7 +258,7 @@ static void untag_chunk(struct node *p) fsnotify_duplicate_mark(&new->mark, entry); if (fsnotify_add_mark(&new->mark, new->mark.group, new->mark.i.inode, NULL, 1)) { - free_chunk(new); + fsnotify_put_mark(&new->mark); goto Fallback; } @@ -293,7 +292,7 @@ static void untag_chunk(struct node *p) spin_unlock(&hash_lock); spin_unlock(&entry->lock); fsnotify_destroy_mark(entry); - fsnotify_put_mark(entry); + fsnotify_put_mark(&new->mark); /* drop initial reference */ goto out; Fallback: @@ -322,7 +321,7 @@ static int create_chunk(struct inode *inode, struct audit_tree *tree) entry = &chunk->mark; if (fsnotify_add_mark(entry, audit_tree_group, inode, NULL, 0)) { - free_chunk(chunk); + fsnotify_put_mark(entry); return -ENOSPC; } @@ -347,6 +346,7 @@ static int create_chunk(struct inode *inode, struct audit_tree *tree) insert_hash(chunk); spin_unlock(&hash_lock); spin_unlock(&entry->lock); + fsnotify_put_mark(entry); /* drop initial reference */ return 0; } @@ -396,7 +396,7 @@ static int tag_chunk(struct inode *inode, struct audit_tree *tree) fsnotify_duplicate_mark(chunk_entry, old_entry); if (fsnotify_add_mark(chunk_entry, chunk_entry->group, chunk_entry->i.inode, NULL, 1)) { spin_unlock(&old_entry->lock); - free_chunk(chunk); + fsnotify_put_mark(chunk_entry); fsnotify_put_mark(old_entry); return -ENOSPC; } @@ -444,8 +444,8 @@ static int tag_chunk(struct inode *inode, struct audit_tree *tree) spin_unlock(&chunk_entry->lock); spin_unlock(&old_entry->lock); fsnotify_destroy_mark(old_entry); + fsnotify_put_mark(chunk_entry); /* drop initial reference */ fsnotify_put_mark(old_entry); /* pair to fsnotify_find mark_entry */ - fsnotify_put_mark(old_entry); /* and kill it */ return 0; } @@ -916,7 +916,12 @@ static void audit_tree_freeing_mark(struct fsnotify_mark *entry, struct fsnotify struct audit_chunk *chunk = container_of(entry, struct audit_chunk, mark); evict_chunk(chunk); - fsnotify_put_mark(entry); + + /* + * We are guaranteed to have at least one reference to the mark from + * either the inode or the caller of fsnotify_destroy_mark(). + */ + BUG_ON(atomic_read(&entry->refcnt) < 1); } static bool audit_tree_send_event(struct fsnotify_group *group, struct inode *inode, |