From 6a797d2737838906f2ea0a31686e87c3151e21ca Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Sat, 17 Oct 2015 16:16:04 -0400 Subject: ext4: call out CRC and corruption errors with specific error codes Instead of overloading EIO for CRC errors and corrupt structures, return the same error codes that XFS returns for the same issues. Signed-off-by: Darrick J. Wong Signed-off-by: Theodore Ts'o --- fs/ext4/mmp.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'fs/ext4/mmp.c') diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c index 6eb1a619890c..0a512aa81bf7 100644 --- a/fs/ext4/mmp.c +++ b/fs/ext4/mmp.c @@ -98,10 +98,12 @@ static int read_mmp_block(struct super_block *sb, struct buffer_head **bh, } mmp = (struct mmp_struct *)((*bh)->b_data); - if (le32_to_cpu(mmp->mmp_magic) == EXT4_MMP_MAGIC && - ext4_mmp_csum_verify(sb, mmp)) + if (le32_to_cpu(mmp->mmp_magic) != EXT4_MMP_MAGIC) + ret = -EFSCORRUPTED; + else if (!ext4_mmp_csum_verify(sb, mmp)) + ret = -EFSBADCRC; + else return 0; - ret = -EINVAL; warn_exit: ext4_warning(sb, "Error %d while reading MMP block %llu", -- cgit v1.2.3