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[PATCH] Btrfs: don't flush delalloc arbitrarily

Kill the check to see if we have 512mb of reserved space in delalloc and
shrink_delalloc if we do.  This causes unexpected latencies and we have other
logic to see if we need to throttle.  Thanks,

Signed-off-by: Josef Bacik <josef@xxxxxxxxxx>
 fs/btrfs/extent-tree.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index c6a2daa..2e0f87b 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4019,9 +4019,6 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
 	block_rsv_add_bytes(block_rsv, to_reserve, 1);
-	if (block_rsv->size > 512 * 1024 * 1024)
-		shrink_delalloc(NULL, root, to_reserve, 0);
 	return 0;

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