On Sat, Aug 01, 2009 at 10:22:09PM -0400, Theodore Tso wrote:
> temporary checkin; about to do checksum conversion
>
> From: Valerie Aurora Henson <vaurora@xxxxxxxxxx>
>
> Signed-off-by: Valerie Aurora Henson <vaurora@xxxxxxxxxx>
BTW, while I was painstakingly picking apart this patch, separating it
into its constiuent pieces, I found the following bug in it:
diff --git a/e2fsck/super.c b/e2fsck/super.c
index c269b0e..a1fb878 100644
--- a/e2fsck/super.c
+++ b/e2fsck/super.c
....
if (fix_problem(ctx, PR_0_GDT_UNINIT, &pctx)) {
- gd->bg_flags &= ~(EXT2_BG_BLOCK_UNINIT |
- EXT2_BG_INODE_UNINIT);
- gd->bg_itable_unused = 0;
+ ext2fs_bg_flag_clear (fs, i, EXT2_BG_BLOCK_UNINIT);
+ ext2fs_bg_flag_clear (fs, i, EXT2_BG_INODE_UNINIT);
should_be = 1;
}
This patch hunk (buried deep within the 800+ lines of the "temporary
checkin; about to do checksum conversion" patch) removed this line:
gd->bg_itable_unused = 0;
... but failed to replace it with this line:
ext2fs_bg_itable_unused_set(fs, i, 0);
This is *why* I insist on auditable patches, and why I can't just
blindly merge the 64-bit branch. When multiple semantic changes are
mushed up all together in one gigundo patch, it's really easy to miss
omissions like this, and since we don't have a regression test to test
this specific repair, we would have never noticed.
And no, it's no fun for me to be picking through this patch set at on
a Saturday evening on a Summer evening; I'd rather be in Lenox,
enjoying a concert at Tanglewood. But someone has got to do it...
- Ted
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