The patch titled
ext4: return after ext4_error in case of failures
has been removed from the -mm tree. Its filename was
ext4-return-after-ext4_error-in-case-of-failures.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: ext4: return after ext4_error in case of failures
From: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
This fix some instances where we were continuing after calling ext4_error.
ext4_error call panic only if errors=panic mount option is set. So we need to
make sure we return correctly after ext4_error call
Reported-by: Adrian Bunk <bunk@xxxxxxxxxx>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Cc: <linux-ext4@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ext4/balloc.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff -puN fs/ext4/balloc.c~ext4-return-after-ext4_error-in-case-of-failures fs/ext4/balloc.c
--- a/fs/ext4/balloc.c~ext4-return-after-ext4_error-in-case-of-failures
+++ a/fs/ext4/balloc.c
@@ -234,11 +234,13 @@ read_block_bitmap(struct super_block *sb
} else {
bh = sb_bread(sb, bitmap_blk);
}
- if (!bh)
+ if (!bh) {
ext4_error (sb, __FUNCTION__,
"Cannot read block bitmap - "
"block_group = %d, block_bitmap = %llu",
block_group, bitmap_blk);
+ return NULL;
+ }
/* check whether block bitmap block number is set */
if (!block_in_use(bitmap_blk, sb, bh->b_data)) {
@@ -630,11 +632,13 @@ do_more:
in_range(ext4_inode_bitmap(sb, desc), block, count) ||
in_range(block, ext4_inode_table(sb, desc), sbi->s_itb_per_group) ||
in_range(block + count - 1, ext4_inode_table(sb, desc),
- sbi->s_itb_per_group))
+ sbi->s_itb_per_group)) {
ext4_error (sb, "ext4_free_blocks",
"Freeing blocks in system zones - "
"Block = %llu, count = %lu",
block, count);
+ goto error_return;
+ }
/*
* We are about to start releasing blocks in the bitmap,
@@ -1745,11 +1749,13 @@ allocated:
in_range(ret_block, ext4_inode_table(sb, gdp),
EXT4_SB(sb)->s_itb_per_group) ||
in_range(ret_block + num - 1, ext4_inode_table(sb, gdp),
- EXT4_SB(sb)->s_itb_per_group))
+ EXT4_SB(sb)->s_itb_per_group)) {
ext4_error(sb, "ext4_new_block",
"Allocating block in system zone - "
"blocks from %llu, length %lu",
ret_block, num);
+ goto out;
+ }
performed_allocation = 1;
_
Patches currently in -mm which might be from aneesh.kumar@xxxxxxxxxxxxxxxxxx are
ext2-return-after-ext2_error-in-case-of-failures.patch
ext2-change-the-default-behaviour-on-error.patch
ext3-return-after-ext3_error-in-case-of-failures.patch
ext3-change-the-default-behaviour-on-error.patch
-
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