ext4: let setup_new_group_blocks() set multiple bits at a time

Rename mb_set_bits() to ext4_set_bits() and make it a global function
so that setup_new_group_blocks() can use it.

Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

1 files changed, 7 insertions, 11 deletions

diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 5f0aefdc8599..178fb2f11c3f 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -217,11 +217,6 @@ static int setup_new_group_blocks(struct super_block *sb,
 		goto exit_journal;
 	}
 
-	if (ext4_bg_has_super(sb, input->group)) {
-		ext4_debug("mark backup superblock %#04llx (+0)\n", start);
-		ext4_set_bit(0, bh->b_data);
-	}
-
 	/* Copy all of the GDT blocks into the backup in this group */
 	for (i = 0, bit = 1, block = start + 1;
 	     i < gdblocks; i++, block++, bit++) {
@@ -250,7 +245,6 @@ static int setup_new_group_blocks(struct super_block *sb,
 			brelse(gdb);
 			goto exit_bh;
 		}
-		ext4_set_bit(bit, bh->b_data);
 		brelse(gdb);
 	}
 
@@ -261,8 +255,11 @@ static int setup_new_group_blocks(struct super_block *sb,
 			       GFP_NOFS);
 	if (err)
 		goto exit_bh;
-	for (i = 0, bit = gdblocks + 1; i < reserved_gdb; i++, bit++)
-		ext4_set_bit(bit, bh->b_data);
+
+	if (ext4_bg_has_super(sb, input->group)) {
+		ext4_debug("mark backup group tables %#04llx (+0)\n", start);
+		ext4_set_bits(bh->b_data, 0, gdblocks + reserved_gdb + 1);
+	}
 
 	ext4_debug("mark block bitmap %#04llx (+%llu)\n", input->block_bitmap,
 		   input->block_bitmap - start);
@@ -278,9 +275,8 @@ static int setup_new_group_blocks(struct super_block *sb,
 	err = sb_issue_zeroout(sb, block, sbi->s_itb_per_group, GFP_NOFS);
 	if (err)
 		goto exit_bh;
-	for (i = 0, bit = input->inode_table - start;
-	     i < sbi->s_itb_per_group; i++, bit++)
-		ext4_set_bit(bit, bh->b_data);
+	ext4_set_bits(bh->b_data, input->inode_table - start,
+		      sbi->s_itb_per_group);
 
 	if ((err = extend_or_restart_transaction(handle, 2, bh)))
 		goto exit_bh;