From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: sandeen@sandeen.net, darrick.wong@oracle.com
Cc: linux-xfs@vger.kernel.org,
Allison Collins <allison.henderson@oracle.com>,
Christoph Hellwig <hch@lst.de>
Subject: [PATCH 1/7] libxfs: libxfs_buf_delwri_submit should write buffers immediately
Date: Fri, 28 Feb 2020 15:35:34 -0800 [thread overview]
Message-ID: <158293293395.1548526.4121108359275534784.stgit@magnolia> (raw)
In-Reply-To: <158293292760.1548526.16432706349096704475.stgit@magnolia>
From: Darrick J. Wong <darrick.wong@oracle.com>
The whole point of libxfs_buf_delwri_submit is to submit a bunch of
buffers for write and wait for the response. Unfortunately, while it
does mark the buffers dirty, it doesn't actually flush them and lets the
cache mru flusher do it. This is inconsistent with the kernel API,
which actually writes the buffers and returns any IO errors.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
libxfs/rdwr.c | 3 ++-
mkfs/xfs_mkfs.c | 16 ++++++++++------
2 files changed, 12 insertions(+), 7 deletions(-)
diff --git a/libxfs/rdwr.c b/libxfs/rdwr.c
index e2d9d790..92281d58 100644
--- a/libxfs/rdwr.c
+++ b/libxfs/rdwr.c
@@ -1498,9 +1498,10 @@ xfs_buf_delwri_submit(
list_for_each_entry_safe(bp, n, buffer_list, b_list) {
list_del_init(&bp->b_list);
- error2 = libxfs_writebuf(bp, 0);
+ error2 = libxfs_writebufr(bp);
if (!error)
error = error2;
+ libxfs_putbuf(bp);
}
return error;
diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index c506577c..0f84860f 100644
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -3685,6 +3685,7 @@ main(
};
struct list_head buffer_list;
+ int error;
platform_uuid_generate(&cli.uuid);
progname = basename(argv[0]);
@@ -3885,16 +3886,19 @@ main(
if (agno % 16)
continue;
- if (libxfs_buf_delwri_submit(&buffer_list)) {
- fprintf(stderr, _("%s: writing AG headers failed\n"),
- progname);
+ error = -libxfs_buf_delwri_submit(&buffer_list);
+ if (error) {
+ fprintf(stderr,
+ _("%s: writing AG headers failed, err=%d\n"),
+ progname, error);
exit(1);
}
}
- if (libxfs_buf_delwri_submit(&buffer_list)) {
- fprintf(stderr, _("%s: writing AG headers failed\n"),
- progname);
+ error = -libxfs_buf_delwri_submit(&buffer_list);
+ if (error) {
+ fprintf(stderr, _("%s: writing AG headers failed, err=%d\n"),
+ progname, error);
exit(1);
}
next prev parent reply other threads:[~2020-02-28 23:35 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-28 23:35 [PATCH v4 0/7] xfsprogs: actually check that writes succeeded Darrick J. Wong
2020-02-28 23:35 ` Darrick J. Wong [this message]
2020-02-28 23:35 ` [PATCH 2/7] libxfs: complain when write IOs fail Darrick J. Wong
2020-02-28 23:35 ` [PATCH 3/7] libxfs: return flush failures Darrick J. Wong
2020-02-28 23:35 ` [PATCH 4/7] libxfs: flush all dirty buffers and report errors when unmounting filesystem Darrick J. Wong
2020-02-28 23:35 ` [PATCH 5/7] mkfs: check that metadata updates have been committed Darrick J. Wong
2020-02-28 23:36 ` [PATCH 6/7] xfs_repair: " Darrick J. Wong
2020-03-05 16:48 ` Christoph Hellwig
2020-02-28 23:36 ` [PATCH 7/7] libfrog: always fsync when flushing a device Darrick J. Wong
-- strict thread matches above, loose matches on Subject: below --
2020-02-25 0:10 [PATCH v3 0/7] xfsprogs: actually check that writes succeeded Darrick J. Wong
2020-02-25 0:10 ` [PATCH 1/7] libxfs: libxfs_buf_delwri_submit should write buffers immediately Darrick J. Wong
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