From 7a01e707a324a4585949ca3df6c7f7485d8783f2 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Wed, 19 Feb 2014 15:33:05 +1100 Subject: [PATCH] xfs: xfs_sb_read_verify() doesn't flag bad crcs on primary sb My earlier commit 10e6e65 deserves a layer or two of brown paper bags. The logic in that commit means that a CRC failure on the primary superblock will *never* result in an error return. Hopefully this fixes it, so that we always return the error if it's a primary superblock, otherwise only if the filesystem has CRCs enabled. Signed-off-by: Eric Sandeen Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers --- fs/xfs/xfs_sb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/xfs/xfs_sb.c b/fs/xfs/xfs_sb.c index b7c9aea..5071ccb 100644 --- a/fs/xfs/xfs_sb.c +++ b/fs/xfs/xfs_sb.c @@ -614,7 +614,7 @@ xfs_sb_read_verify( if (!xfs_verify_cksum(bp->b_addr, be16_to_cpu(dsb->sb_sectsize), offsetof(struct xfs_sb, sb_crc))) { /* Only fail bad secondaries on a known V5 filesystem */ - if (bp->b_bn != XFS_SB_DADDR && + if (bp->b_bn == XFS_SB_DADDR || xfs_sb_version_hascrc(&mp->m_sb)) { error = EFSCORRUPTED; goto out_error; -- 2.7.4