The patch titled
ext3: retry block allocation if new blocks are allocated from system zone
has been removed from the -mm tree. Its filename was
ext3-retry-block-allocation-if-new-blocks-are-allocated-from-system-zone.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: ext3: retry block allocation if new blocks are allocated from system zone
From: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
If the block allocator gets blocks out of system zone ext3 calls ext3_error.
But if the file system is mounted with errors=continue retry block allocation.
We need to mark the system zone blocks as in use to make sure retry don't
pick them again
System zone is the block range mapping block bitmap, inode bitmap and inode
table.
[akpm@xxxxxxxxxxxxxxxxxxxx: fix typo in comment]
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Cc: <linux-ext4@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ext3/balloc.c | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
diff -puN fs/ext3/balloc.c~ext3-retry-block-allocation-if-new-blocks-are-allocated-from-system-zone fs/ext3/balloc.c
--- a/fs/ext3/balloc.c~ext3-retry-block-allocation-if-new-blocks-are-allocated-from-system-zone
+++ a/fs/ext3/balloc.c
@@ -164,10 +164,11 @@ read_block_bitmap(struct super_block *sb
block_group, le32_to_cpu(desc->bg_block_bitmap));
return NULL;
}
- if (!ext3_valid_block_bitmap(sb, desc, block_group, bh)) {
- brelse(bh);
- return NULL;
- }
+ ext3_valid_block_bitmap(sb, desc, block_group, bh);
+ /*
+ * file system mounted not to panic on error, continue with corrupt
+ * bitmap
+ */
return bh;
}
/*
@@ -1641,7 +1642,11 @@ allocated:
"Allocating block in system zone - "
"blocks from "E3FSBLK", length %lu",
ret_block, num);
- goto out;
+ /*
+ * claim_block() marked the blocks we allocated as in use. So we
+ * may want to selectively mark some of the blocks as free.
+ */
+ goto retry_alloc;
}
performed_allocation = 1;
_
Patches currently in -mm which might be from aneesh.kumar@xxxxxxxxxxxxxxxxxx are
origin.patch
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