2007-10-25 21:29:15

by Andrew Morton

[permalink] [raw]
Subject: + ext3-return-after-ext3_error-in-case-of-failures.patch added to -mm tree


The patch titled
ext3: return after ext3_error in case of failures
has been added to the -mm tree. Its filename is
ext3-return-after-ext3_error-in-case-of-failures.patch

*** Remember to use Documentation/SubmitChecklist when testing your code ***

See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this

------------------------------------------------------
Subject: ext3: return after ext3_error in case of failures
From: "Aneesh Kumar K.V" <[email protected]>

This fixes some instances where we were continuing after calling
ext3_error. ext3_error calls panic only if errors=panic mount option is
set. So we need to make sure we return correctly after ext3_error call

Signed-off-by: Aneesh Kumar K.V <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---

fs/ext3/balloc.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)

diff -puN fs/ext3/balloc.c~ext3-return-after-ext3_error-in-case-of-failures fs/ext3/balloc.c
--- a/fs/ext3/balloc.c~ext3-return-after-ext3_error-in-case-of-failures
+++ a/fs/ext3/balloc.c
@@ -111,11 +111,13 @@ read_block_bitmap(struct super_block *sb
return NULL;
bitmap_blk = le32_to_cpu(desc->bg_block_bitmap);
bh = sb_bread(sb, bitmap_blk);
- if (!bh)
+ if (!bh) {
ext3_error (sb, __FUNCTION__,
"Cannot read block bitmap - "
"block_group = %d, block_bitmap = %u",
block_group, le32_to_cpu(desc->bg_block_bitmap));
+ return NULL;
+ }

/* check whether block bitmap block number is set */
if (!block_in_use(bitmap_blk, sb, bh->b_data)) {
@@ -507,11 +509,13 @@ do_more:
in_range (block, le32_to_cpu(desc->bg_inode_table),
sbi->s_itb_per_group) ||
in_range (block + count - 1, le32_to_cpu(desc->bg_inode_table),
- sbi->s_itb_per_group))
+ sbi->s_itb_per_group)) {
ext3_error (sb, "ext3_free_blocks",
"Freeing blocks in system zones - "
"Block = "E3FSBLK", count = %lu",
block, count);
+ goto error_return;
+ }

/*
* We are about to start releasing blocks in the bitmap,
@@ -1614,11 +1618,13 @@ allocated:
in_range(ret_block, le32_to_cpu(gdp->bg_inode_table),
EXT3_SB(sb)->s_itb_per_group) ||
in_range(ret_block + num - 1, le32_to_cpu(gdp->bg_inode_table),
- EXT3_SB(sb)->s_itb_per_group))
+ EXT3_SB(sb)->s_itb_per_group)) {
ext3_error(sb, "ext3_new_block",
"Allocating block in system zone - "
"blocks from "E3FSBLK", length %lu",
ret_block, num);
+ goto out;
+ }

performed_allocation = 1;

_

Patches currently in -mm which might be from [email protected] are

ext4-return-after-ext4_error-in-case-of-failures.patch
ext3-return-after-ext3_error-in-case-of-failures.patch
ext2-fix-the-max-file-size-for-ext2-file-system.patch
ext3-fix-the-max-file-size-for-ext3-file-system.patch