From: Chris Mason Date: Mon, 10 Nov 2008 21:13:54 +0000 (-0500) Subject: Btrfs: empty_size allocation fixes again X-Git-Tag: firefly_0821_release~15789^2~11^2~55^2~24 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8a1413a296d38b54ded651e76ef16c033d38fd5d;p=firefly-linux-kernel-4.4.55.git Btrfs: empty_size allocation fixes again The allocator wasn't catching all of the cases where it needed to do extra loops because the check to enforce them wasn't happening early enough. When the allocator decided to increase the size of the allocation for metadata clustering, it wasn't always setting the empty_size to include the extra (optional) bytes. This also fixes the empty_size field to be correct. Signed-off-by: Chris Mason --- diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 55d6a66c622d..b7530c3ac206 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -2174,6 +2174,9 @@ static int noinline find_free_extent(struct btrfs_trans_handle *trans, * group thats not of the proper type, while looping this * should never happen */ + if (empty_size) + extra_loop = 1; + if (!block_group) goto new_group_no_lock; @@ -2192,9 +2195,6 @@ static int noinline find_free_extent(struct btrfs_trans_handle *trans, free_space = btrfs_find_free_space(block_group, search_start, total_needed); - if (empty_size) - extra_loop = 1; - if (free_space) { u64 start = block_group->key.objectid; u64 end = block_group->key.objectid + @@ -2212,6 +2212,7 @@ static int noinline find_free_extent(struct btrfs_trans_handle *trans, if (last_wanted && search_start != last_wanted) { total_needed += empty_cluster; + empty_size += empty_cluster; last_wanted = 0; /* * if search_start is still in this block group