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authorJosef Bacik <josef@redhat.com>2011-05-11 15:26:06 -0400
committerJosef Bacik <josef@redhat.com>2011-05-23 13:03:12 -0400
commitd82a6f1d7e8b61ed5996334d0db66651bb43641d (patch)
tree5738ec75f7679bdc1b97aecbc5cad3464cc65541 /fs/btrfs/xattr.c
parent7e2355ba1a11649f0b212a29fdb9f47476f1248e (diff)
Btrfs: kill BTRFS_I(inode)->block_group
Originally this was going to be used as a way to give hints to the allocator, but frankly we can get much better hints elsewhere and it's not even used at all for anything usefull. In addition to be completely useless, when we initialize an inode we try and find a freeish block group to set as the inodes block group, and with a completely full 40gb fs this takes _forever_, so I imagine with say 1tb fs this is just unbearable. So just axe the thing altoghether, we don't need it and it saves us 8 bytes in the inode and saves us 500 microseconds per inode lookup in my testcase. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com>
Diffstat (limited to 'fs/btrfs/xattr.c')
-rw-r--r--fs/btrfs/xattr.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c
index cfd660550de..72ab0295ca7 100644
--- a/fs/btrfs/xattr.c
+++ b/fs/btrfs/xattr.c
@@ -158,8 +158,6 @@ int __btrfs_setxattr(struct btrfs_trans_handle *trans,
if (IS_ERR(trans))
return PTR_ERR(trans);
- btrfs_set_trans_block_group(trans, inode);
-
ret = do_setxattr(trans, inode, name, value, size, flags);
if (ret)
goto out;