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| author | Chris Mason <chris.mason@oracle.com> | 2008-11-13 09:59:33 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-11-13 09:59:33 -0500 |
| commit | 2ed6d66408527be0d1c6131d44cec7e86008ba26 (patch) | |
| tree | 2bed676124963bee4fce1d61c42c2ff8df0f953c /fs/btrfs/extent-tree.c | |
| parent | 6f3577bdc768e6dae3c4d419e89b5a904f470728 (diff) | |
| download | blackbird-op-linux-2ed6d66408527be0d1c6131d44cec7e86008ba26.tar.gz blackbird-op-linux-2ed6d66408527be0d1c6131d44cec7e86008ba26.zip | |
Btrfs: Fix handling of space info full during allocations
When we fail to allocate a new block group, we should still do the
checks to make sure allocations try again with the minimum requested
allocation size.
This also fixes a deadlock that come from a missed down_read in
the chunk allocation failure handling.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index b7530c3ac206..22820f91d2b0 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -2301,9 +2301,9 @@ new_group_no_lock: up_read(&space_info->groups_sem); ret = do_chunk_alloc(trans, root, num_bytes + 2 * 1024 * 1024, data, 1); - if (ret < 0) - break; down_read(&space_info->groups_sem); + if (ret < 0) + goto loop_check; head = &space_info->block_groups; /* * we've allocated a new chunk, keep @@ -2314,6 +2314,7 @@ new_group_no_lock: } else if (!allowed_chunk_alloc) { space_info->force_alloc = 1; } +loop_check: if (keep_going) { cur = head->next; extra_loop = 0; |
