Btrfs: don't allocate chunks as aggressively V2

Commit Message

Josef Bacik Oct. 19, 2010, 1:02 a.m. UTC

None

Patch

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 14a52dd..eac11b1 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3224,8 +3224,7 @@  static void force_metadata_allocation(struct btrfs_fs_info *info)
 	rcu_read_unlock();
 }
 
-static int should_alloc_chunk(struct btrfs_space_info *sinfo,
-			      u64 alloc_bytes)
+static int should_alloc_chunk(struct btrfs_space_info *sinfo, u64 alloc_bytes)
 {
 	u64 num_bytes = sinfo->total_bytes - sinfo->bytes_readonly;
 
@@ -3237,6 +3236,10 @@  static int should_alloc_chunk(struct btrfs_space_info *sinfo,
 	    alloc_bytes < div_factor(num_bytes, 8))
 		return 0;
 
+	if (num_bytes > 256 * 1024 * 1024 &&
+	    sinfo->bytes_used < div_factor(num_bytes, 3))
+		return 0;
+
 	return 1;
 }