From: Dave Chinner <david@fromorbit.com>
Date: Wed, 13 Nov 2013 06:40:48 +0000 (+0000)
Subject: db: verify and calculate dquot CRCs
X-Git-Tag: v3.2.0-alpha2~18
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=66a40d020d7abb6fe09693f4392b6af2b30aa3b3;p=thirdparty%2Fxfsprogs-dev.git

db: verify and calculate dquot CRCs

When we set the current Io cursor to point at a dquot block, verify
that the dquot CRC is intact. And prior to writing such an IO
cursor, calculate the dquot CRC.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Rich Johnston <rjohnston@sgi.com>
---

diff --git a/db/io.c b/db/io.c
index 6e3282e50..123214d16 100644
--- a/db/io.c
+++ b/db/io.c
@@ -466,7 +466,9 @@ write_cur(void)
 
 	if (iocur_top->ino_buf)
 		libxfs_dinode_calc_crc(mp, iocur_top->data);
-
+	if (iocur_top->dquot_buf)
+		xfs_update_cksum(iocur_top->data, sizeof(struct xfs_dqblk),
+				 XFS_DQUOT_CRC_OFF);
 	if (iocur_top->bbmap)
 		write_cur_bbs();
 	else
@@ -540,6 +542,7 @@ set_cur(
 	iocur_top->dirino = dirino;
 	iocur_top->mode = mode;
 	iocur_top->ino_buf = 0;
+	iocur_top->dquot_buf = 0;
 
 	/* store location in ring */
 	if (ring_flag)
diff --git a/db/io.h b/db/io.h
index 1f8270dcf..4f24c83b8 100644
--- a/db/io.h
+++ b/db/io.h
@@ -40,6 +40,7 @@ typedef struct iocur {
 	struct xfs_buf		*bp;	/* underlying buffer */
 	int			ino_crc_ok:1;
 	int			ino_buf:1;
+	int			dquot_buf:1;
 } iocur_t;
 
 #define DB_RING_ADD 1                   /* add to ring on set_cur */