The patch titled
     ext3, ext4: avoid divide by zero
has been removed from the -mm tree.  Its filename was
     ext3-ext4-avoid-divide-by-zero.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
Subject: ext3, ext4: avoid divide by zero
From: "Andries E. Brouwer" <[EMAIL PROTECTED]>

As it turns out, the kernel divides by EXT3_INODES_PER_GROUP(s) when
mounting an ext3 filesystem.  If that number is zero, a crash follows. 
Below a patch.

This crash was reported by Joeri de Ruiter, Carst Tankink and Pim Vullers.

Cc: <linux-ext4@vger.kernel.org>
Acked-by: Alan Cox <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---

 fs/ext3/super.c |    2 +-
 fs/ext4/super.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff -puN fs/ext3/super.c~ext3-ext4-avoid-divide-by-zero fs/ext3/super.c
--- a/fs/ext3/super.c~ext3-ext4-avoid-divide-by-zero
+++ a/fs/ext3/super.c
@@ -1676,7 +1676,7 @@ static int ext3_fill_super (struct super
        sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);
        sbi->s_frags_per_group = le32_to_cpu(es->s_frags_per_group);
        sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);
-       if (EXT3_INODE_SIZE(sb) == 0)
+       if (EXT3_INODE_SIZE(sb) == 0 || EXT3_INODES_PER_GROUP(sb) == 0)
                goto cantfind_ext3;
        sbi->s_inodes_per_block = blocksize / EXT3_INODE_SIZE(sb);
        if (sbi->s_inodes_per_block == 0)
diff -puN fs/ext4/super.c~ext3-ext4-avoid-divide-by-zero fs/ext4/super.c
--- a/fs/ext4/super.c~ext3-ext4-avoid-divide-by-zero
+++ a/fs/ext4/super.c
@@ -1797,7 +1797,7 @@ static int ext4_fill_super (struct super
                sbi->s_desc_size = EXT4_MIN_DESC_SIZE;
        sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);
        sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);
-       if (EXT4_INODE_SIZE(sb) == 0)
+       if (EXT4_INODE_SIZE(sb) == 0 || EXT4_INODES_PER_GROUP(sb) == 0)
                goto cantfind_ext4;
        sbi->s_inodes_per_block = blocksize / EXT4_INODE_SIZE(sb);
        if (sbi->s_inodes_per_block == 0)
_

Patches currently in -mm which might be from [EMAIL PROTECTED] are

origin.patch
mnt_unbindable-fix.patch

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