ocfs2: Avoid unnecessary block mapping when refreshing quota info

The position of global quota file info does not change. So we do not have
to do logical -> physical block translation every time we reread it from
disk. Thus we can also avoid taking ip_alloc_sem.

Acked-by: Joel Becker <Joel.Becker@oracle.com>
Signed-off-by: Jan Kara <jack@suse.cz>

1 files changed, 5 insertions, 5 deletions

diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
index a88f1d1ec2b4..962e8380852b 100644
--- a/fs/ocfs2/quota_local.c
+++ b/fs/ocfs2/quota_local.c
@@ -671,7 +671,7 @@ static int ocfs2_local_read_info(struct super_block *sb, int type)
         INIT_LIST_HEAD(&oinfo->dqi_chunk);
         oinfo->dqi_rec = NULL;
         oinfo->dqi_lqi_bh = NULL;
-        oinfo->dqi_ibh = NULL;
+        oinfo->dqi_libh = NULL;
 
         status = ocfs2_global_read_info(sb, type);
         if (status < 0)
@@ -697,7 +697,7 @@ static int ocfs2_local_read_info(struct super_block *sb, int type)
         info->dqi_flags = le32_to_cpu(ldinfo->dqi_flags);
         oinfo->dqi_chunks = le32_to_cpu(ldinfo->dqi_chunks);
         oinfo->dqi_blocks = le32_to_cpu(ldinfo->dqi_blocks);
-        oinfo->dqi_ibh = bh;
+        oinfo->dqi_libh = bh;
 
         /* We crashed when using local quota file? */
         if (!(info->dqi_flags & OLQF_CLEAN)) {
@@ -759,7 +759,7 @@ static int ocfs2_local_write_info(struct super_block *sb, int type)
 {
         struct mem_dqinfo *info = sb_dqinfo(sb, type);
         struct buffer_head *bh = ((struct ocfs2_mem_dqinfo *)info->dqi_priv)
-                                                ->dqi_ibh;
+                                                ->dqi_libh;
         int status;
 
         status = ocfs2_modify_bh(sb_dqopt(sb)->files[type], bh, olq_update_info,
@@ -820,7 +820,7 @@ static int ocfs2_local_free_info(struct super_block *sb, int type)
         /* Mark local file as clean */
         info->dqi_flags |= OLQF_CLEAN;
         status = ocfs2_modify_bh(sb_dqopt(sb)->files[type],
-                                 oinfo->dqi_ibh,
+                                 oinfo->dqi_libh,
                                  olq_update_info,
                                  info);
         if (status < 0) {
@@ -830,7 +830,7 @@ static int ocfs2_local_free_info(struct super_block *sb, int type)
 
 out:
         ocfs2_inode_unlock(sb_dqopt(sb)->files[type], 1);
-        brelse(oinfo->dqi_ibh);
+        brelse(oinfo->dqi_libh);
         brelse(oinfo->dqi_lqi_bh);
         kfree(oinfo);
         return 0;