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authorDave Chinner <dchinner@redhat.com>2010-09-22 04:47:20 +0400
committerAlex Elder <aelder@sgi.com>2010-10-19 00:07:51 +0400
commit69d6cc76cff3573ceefda178b75e20878866fdc3 (patch)
treec26739c748ecd4e869b1c429c82b0618fddf7ccb /fs/xfs
parent1922c949c59f93beb560d59874bcc6d5c00115ac (diff)
downloadlinux-69d6cc76cff3573ceefda178b75e20878866fdc3.tar.xz
xfs: remove buftarg hash for external devices
For RT and external log devices, we never use hashed buffers on them now. Remove the buftarg hash tables that are set up for them. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 975d6589394a..251bcdc6352e 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -1458,7 +1458,11 @@ xfs_alloc_bufhash(
{
unsigned int i;
- btp->bt_hashshift = external ? 3 : 12; /* 8 or 4096 buckets */
+ if (external) {
+ btp->bt_hash = NULL;
+ return;
+ }
+ btp->bt_hashshift = 12; /* 4096 buckets */
btp->bt_hash = kmem_zalloc_large((1 << btp->bt_hashshift) *
sizeof(xfs_bufhash_t));
for (i = 0; i < (1 << btp->bt_hashshift); i++) {