From: Dave Chinner <david@fromorbit.com>
To: xfs@oss.sgi.com
Subject: [RFC PATCH 09/12] db: verify and calculate dquot CRCs
Date: Thu, 5 Sep 2013 22:13:30 +1000 [thread overview]
Message-ID: <1378383213-16155-10-git-send-email-david@fromorbit.com> (raw)
In-Reply-To: <1378383213-16155-1-git-send-email-david@fromorbit.com>
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>
---
db/io.c | 5 ++++-
db/io.h | 1 +
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/db/io.c b/db/io.c
index 5f2e492..04f1879 100644
--- a/db/io.c
+++ b/db/io.c
@@ -464,7 +464,9 @@ 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
@@ -532,6 +534,7 @@ 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 1f8270d..4f24c83 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 */
--
1.8.3.2
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next prev parent reply other threads:[~2013-09-05 12:13 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-05 12:13 [RFC PATCH 00/12] xfs_db: write support for v5 filesystems Dave Chinner
2013-09-05 12:13 ` [RFC PATCH 01/12] db: separate out straight buffer IO from map based IO Dave Chinner
2013-09-05 12:13 ` [RFC PATCH 02/12] db: rewrite bbmap to use xfs_buf_map Dave Chinner
2013-09-05 12:13 ` [RFC PATCH 03/12] db: rewrite IO engine to use libxfs Dave Chinner
2013-09-05 12:13 ` [RFC PATCH 04/12] xfs: split dquot buffer operations out Dave Chinner
2013-09-05 12:13 ` [RFC PATCH 05/12] xfs: move buf_ops externs to a xfs_format.h Dave Chinner
2013-09-05 12:13 ` [RFC PATCH 06/12] db: introduce verifier support into set_cur Dave Chinner
2013-09-05 12:13 ` [RFC PATCH 07/12] db: indicate if the CRC on a buffer is correct or not Dave Chinner
2013-09-05 12:13 ` [RFC PATCH 08/12] db: verify and calculate inode CRCs Dave Chinner
2013-09-05 12:13 ` Dave Chinner [this message]
2013-09-05 12:13 ` [RFC PATCH 10/12] db: add a special directory buffer verifier Dave Chinner
2013-09-05 12:13 ` [RFC PATCH 11/12] db: add a special attribute " Dave Chinner
2013-09-05 12:13 ` [RFC PATCH 12/12] db: re-enable write support for v5 filesystems Dave Chinner
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