Ilya Dryomov
2012-Apr-09 15:27 UTC
[PATCH] Btrfs: remove lock assert from get_restripe_target()
This fixes a regression introduced by fc67c450. spin_is_locked() always
returns 0 on UP kernels, which caused assert in get_restripe_target() to
be fired on every call from btrfs_reduce_alloc_profile() on UP systems.
Remove it completely for now, it''s not clear if it''s going to
be needed
in future.
Reported-by: Bobby Powers <bobbypowers@gmail.com>
Reported-by: Mitch Harder <mitch.harder@sabayonlinux.org>
Tested-by: Mitch Harder <mitch.harder@sabayonlinux.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
---
fs/btrfs/extent-tree.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index a844204..8db0884 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3152,15 +3152,14 @@ static void set_avail_alloc_bits(struct btrfs_fs_info
*fs_info, u64 flags)
/*
* returns target flags in extended format or 0 if restripe for this
* chunk_type is not in progress
+ *
+ * should be called with either volume_mutex or balance_lock held
*/
static u64 get_restripe_target(struct btrfs_fs_info *fs_info, u64 flags)
{
struct btrfs_balance_control *bctl = fs_info->balance_ctl;
u64 target = 0;
- BUG_ON(!mutex_is_locked(&fs_info->volume_mutex) &&
- !spin_is_locked(&fs_info->balance_lock));
-
if (!bctl)
return 0;
--
1.7.9.1
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