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authorLukas Czerner <lczerner@redhat.com>2010-10-28 03:30:05 +0200
committerTheodore Ts'o <tytso@mit.edu>2010-10-28 03:30:05 +0200
commita31437b85aa2cbc4ea80f9ee5d603fdd5430980c (patch)
treed4c0a609d5e4e59d2cd748ddf57c5f2c49844673 /fs/ext4/resize.c
parentext4: add interface to advertise ext4 features in sysfs (diff)
downloadlinux-a31437b85aa2cbc4ea80f9ee5d603fdd5430980c.tar.xz
linux-a31437b85aa2cbc4ea80f9ee5d603fdd5430980c.zip
ext4: use sb_issue_zeroout in setup_new_group_blocks
Use sb_issue_zeroout to zero out inode table and descriptor table blocks instead of old approach which involves journaling. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/resize.c')
-rw-r--r--fs/ext4/resize.c46
1 files changed, 13 insertions, 33 deletions
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index ca5c8aa00a2f..2f5e347de48b 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -226,23 +226,13 @@ static int setup_new_group_blocks(struct super_block *sb,
}
/* Zero out all of the reserved backup group descriptor table blocks */
- for (i = 0, bit = gdblocks + 1, block = start + bit;
- i < reserved_gdb; i++, block++, bit++) {
- struct buffer_head *gdb;
-
- ext4_debug("clear reserved block %#04llx (+%d)\n", block, bit);
-
- if ((err = extend_or_restart_transaction(handle, 1, bh)))
- goto exit_bh;
+ ext4_debug("clear inode table blocks %#04llx -> %#04llx\n",
+ block, sbi->s_itb_per_group);
+ err = sb_issue_zeroout(sb, gdblocks + start + 1, reserved_gdb,
+ GFP_NOFS, BLKDEV_IFL_WAIT);
+ if (err)
+ goto exit_bh;
- if (IS_ERR(gdb = bclean(handle, sb, block))) {
- err = PTR_ERR(gdb);
- goto exit_bh;
- }
- ext4_handle_dirty_metadata(handle, NULL, gdb);
- ext4_set_bit(bit, bh->b_data);
- brelse(gdb);
- }
ext4_debug("mark block bitmap %#04llx (+%llu)\n", input->block_bitmap,
input->block_bitmap - start);
ext4_set_bit(input->block_bitmap - start, bh->b_data);
@@ -251,23 +241,13 @@ static int setup_new_group_blocks(struct super_block *sb,
ext4_set_bit(input->inode_bitmap - start, bh->b_data);
/* Zero out all of the inode table blocks */
- for (i = 0, block = input->inode_table, bit = block - start;
- i < sbi->s_itb_per_group; i++, bit++, block++) {
- struct buffer_head *it;
-
- ext4_debug("clear inode block %#04llx (+%d)\n", block, bit);
-
- if ((err = extend_or_restart_transaction(handle, 1, bh)))
- goto exit_bh;
-
- if (IS_ERR(it = bclean(handle, sb, block))) {
- err = PTR_ERR(it);
- goto exit_bh;
- }
- ext4_handle_dirty_metadata(handle, NULL, it);
- brelse(it);
- ext4_set_bit(bit, bh->b_data);
- }
+ block = input->inode_table;
+ ext4_debug("clear inode table blocks %#04llx -> %#04llx\n",
+ block, sbi->s_itb_per_group);
+ err = sb_issue_zeroout(sb, block, sbi->s_itb_per_group,
+ GFP_NOFS, BLKDEV_IFL_WAIT);
+ if (err)
+ goto exit_bh;
if ((err = extend_or_restart_transaction(handle, 2, bh)))
goto exit_bh;