[PATCH] ext3: use sbi instead of EXT3_SB() in resize code.

There are places in the resize code in which EXT3_SB() macro is used after
an statement like sbi = EXT3_SB(sb) is done.  Inside the same function,
both sbi and EXT3_SB() are used to reference the super block Altough it is
not wrong, keeping it coherent increases legibility, IMHO.

Signed-off-by: Glauber de Oliveira Costa <glommer@br.ibm.com>
Cc: "Stephen C. Tweedie" <sct@redhat.com>
Cc: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
index 675aa24..1041dab 100644 (file)
--- a/fs/ext3/resize.c
+++ b/fs/ext3/resize.c
@@ -31,7 +31,7 @@ static int verify_group_input(struct super_block *sb,
        unsigned start = le32_to_cpu(es->s_blocks_count);
        unsigned end = start + input->blocks_count;
        unsigned group = input->group;
-       unsigned itend = input->inode_table + EXT3_SB(sb)->s_itb_per_group;
+       unsigned itend = input->inode_table + sbi->s_itb_per_group;
        unsigned overhead = ext3_bg_has_super(sb, group) ?
                (1 + ext3_bg_num_gdb(sb, group) +
                 le16_to_cpu(es->s_reserved_gdt_blocks)) : 0;
@@ -764,7 +764,7 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
        }
 
        lock_super(sb);
-       if (input->group != EXT3_SB(sb)->s_groups_count) {
+       if (input->group != sbi->s_groups_count) {
                ext3_warning(sb, __FUNCTION__,
                             "multiple resizers run on filesystem!");
                err = -EBUSY;
@@ -799,7 +799,7 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
         * data.  So we need to be careful to set all of the relevant
         * group descriptor data etc. *before* we enable the group.
         *
-        * The key field here is EXT3_SB(sb)->s_groups_count: as long as
+        * The key field here is sbi->s_groups_count: as long as
         * that retains its old value, nobody is going to access the new
         * group.
         *
@@ -859,7 +859,7 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
        smp_wmb();
 
        /* Update the global fs size fields */
-       EXT3_SB(sb)->s_groups_count++;
+       sbi->s_groups_count++;
 
        ext3_journal_dirty_metadata(handle, primary);
 
@@ -874,7 +874,7 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
        percpu_counter_mod(&sbi->s_freeinodes_counter,
                           EXT3_INODES_PER_GROUP(sb));
 
-       ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
+       ext3_journal_dirty_metadata(handle, sbi->s_sbh);
        sb->s_dirt = 1;
 
 exit_journal: