From: Peter Watkins <treestem@gmail.com>
To: xfs@oss.sgi.com
Cc: Peter Watkins <treestem@gmail.com>
Subject: [PATCH] Check block magic number so we scan only valid blocks.
Date: Thu, 8 Jul 2010 15:20:50 -0400 [thread overview]
Message-ID: <1278616850-32451-1-git-send-email-treestem@gmail.com> (raw)
In-Reply-To: <20100707235218.GA30851@infradead.org>
OK, thanks for taking a look.
Here's the complete patch in case anyone is interested.
-Peter
Signed-off-by: Peter Watkins <treestem@gmail.com>
---
db/freesp.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/db/freesp.c b/db/freesp.c
index e1902c6..c4dabad 100644
--- a/db/freesp.c
+++ b/db/freesp.c
@@ -286,6 +286,9 @@ scanfunc_bno(
xfs_alloc_ptr_t *pp;
xfs_alloc_rec_t *rp;
+ if (be32_to_cpu(block->bb_magic) != XFS_ABTB_MAGIC)
+ return;
+
if (level == 0) {
rp = XFS_ALLOC_REC_ADDR(mp, block, 1);
for (i = 0; i < be16_to_cpu(block->bb_numrecs); i++)
@@ -310,6 +313,9 @@ scanfunc_cnt(
xfs_alloc_ptr_t *pp;
xfs_alloc_rec_t *rp;
+ if (be32_to_cpu(block->bb_magic) != XFS_ABTC_MAGIC)
+ return;
+
if (level == 0) {
rp = XFS_ALLOC_REC_ADDR(mp, block, 1);
for (i = 0; i < be16_to_cpu(block->bb_numrecs); i++)
--
1.6.0.4
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prev parent reply other threads:[~2010-07-08 19:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-07 15:09 [PATCH] Check block magic number so we scan only valid blocks Peter Watkins
2010-07-07 23:52 ` Christoph Hellwig
2010-07-08 19:20 ` Peter Watkins [this message]
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