linux-ext4 - [PATCH] mke2fs: do not initialize block bitmaps of groups having super block

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Wed,  9 Nov 2011 18:53:26 +0800
From:	Yongqiang Yang <xiaoqiangnk@...il.com>
To:	tytso@....edu
Cc:	linux-ext4@...r.kernel.org, Yongqiang Yang <xiaoqiangnk@...il.com>
Subject: [PATCH] mke2fs: do not initialize block bitmaps of groups having super block

Now mke2fs initializes block bitmaps of groups having super block, on
the other hand ext4_init_block_bitmap in kernel can handle this case
rightly.  So let mke2fs let block bitmaps of groups having super block
be uninitialized.

Signed-off-by: Yongqiang Yang <xiaoqiangnk@...il.com>
---
 lib/ext2fs/alloc_sb.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/lib/ext2fs/alloc_sb.c b/lib/ext2fs/alloc_sb.c
index 0d1c000..7517fbc 100644
--- a/lib/ext2fs/alloc_sb.c
+++ b/lib/ext2fs/alloc_sb.c
@@ -65,8 +65,6 @@ int ext2fs_reserve_super_and_bgd(ext2_filsys fs,
 		ext2fs_mark_block_bitmap2(bmap, 0);
 
 	if (old_desc_blk) {
-		if (fs->super->s_reserved_gdt_blocks && fs->block_map == bmap)
-			ext2fs_bg_flags_clear(fs, group, EXT2_BG_BLOCK_UNINIT);
 		for (j=0; j < old_desc_blocks; j++)
 			if (old_desc_blk + j < ext2fs_blocks_count(fs->super))
 				ext2fs_mark_block_bitmap2(bmap,
-- 
1.7.5.1

--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html