diff mbox

[RFC,-v2,9/9] ext4: Fix lockdep recursive locking warning

Message ID 1225733769-23734-9-git-send-email-aneesh.kumar@linux.vnet.ibm.com
State Superseded, archived
Headers show

Commit Message

Aneesh Kumar K.V Nov. 3, 2008, 5:36 p.m. UTC 
Indicate that the group locks can be taken in loop.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
 fs/ext4/mballoc.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

Comments

Theodore Ts'o Nov. 4, 2008, 6:15 p.m. UTC | #1 
Ok, I've added all of your patches into the ext4 patch queues.  For
the most part I haven't made any changes to the patches, other than
adding my signed-off-by.

						- Ted
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diff mbox

Patch

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index c169256..5a5f9e1 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2418,6 +2418,7 @@  ext4_mb_store_history(struct ext4_allocation_context *ac)
 #define ext4_mb_history_init(sb)
 #endif
 
+static struct lock_class_key alloc_sem_key[NR_BG_LOCKS];
 
 /* Create and initialize ext4_group_info data for the given group. */
 int ext4_mb_add_groupinfo(struct super_block *sb, ext4_group_t group,
@@ -2478,7 +2479,9 @@  int ext4_mb_add_groupinfo(struct super_block *sb, ext4_group_t group,
 	}
 
 	INIT_LIST_HEAD(&meta_group_info[i]->bb_prealloc_list);
-	init_rwsem(&meta_group_info[i]->alloc_sem);
+	__init_rwsem(&meta_group_info[i]->alloc_sem,
+			"&meta_group_info[i]->alloc_sem",
+			&alloc_sem_key[i]);
 	meta_group_info[i]->bb_free_root.rb_node = NULL;;
 
 #ifdef DOUBLE_CHECK