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From: Dave Chinner <david@fromorbit.com>
To: xfs@oss.sgi.com
Subject: [PATCH 31/37] db: Unwind the IO stack on exit
Date: Wed,  6 Nov 2013 12:07:17 +1100	[thread overview]
Message-ID: <1383700043-32305-32-git-send-email-david@fromorbit.com> (raw)
In-Reply-To: <1383700043-32305-1-git-send-email-david@fromorbit.com>

From: Dave Chinner <dchinner@redhat.com>

xfs_db can build up a large IO stack by the time it has run to
completion. If we don't unwind this IO stack before we shut down the
libxfs caches, metadump and other db programs will exit with
unreleased buffers and emit warnings like:

cache_purge: shake on cache 0x69e4f0 left 7 nodes!?

Hence we need to unwind the iostack as we shut down.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
 db/init.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/db/init.c b/db/init.c
index 4bc048a..8ad21da 100644
--- a/db/init.c
+++ b/db/init.c
@@ -183,9 +183,11 @@ main(
 	int	c, i, done = 0;
 	char	*input;
 	char	**v;
+	int	start_iocur_sp;
 
 	pushfile(stdin);
 	init(argc, argv);
+	start_iocur_sp = iocur_sp;
 
 	for (i = 0; !done && i < ncmdline; i++) {
 		v = breakline(cmdline[i], &c);
@@ -209,10 +211,11 @@ main(
 
 close_devices:
 	/*
-	 * make sure that we pop the last buffer context we held so that the
-	 * buffer is released before purge the caches during unmount.
+	 * Make sure that we pop the all the buffer contexts we hold so that
+	 * they are released before we purge the caches during unmount.
 	 */
-	pop_cur();
+	while (iocur_sp > start_iocur_sp)
+		pop_cur();
 	libxfs_umount(mp);
 	if (x.ddev)
 		libxfs_device_close(x.ddev);
-- 
1.8.4.rc3

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  parent reply	other threads:[~2013-11-06  1:07 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-06  1:06 [PATCH 00/37 V4] xfsprogs: CRC write support for xfs_db + more Dave Chinner
2013-11-06  1:06 ` [PATCH 01/37] xfsprogs: fix automatic dependency generation Dave Chinner
2013-11-06  1:06 ` [PATCH 02/37] xfs: fix some minor sparse warnings Dave Chinner
2013-11-06  1:06 ` [PATCH 03/37] xfs: create a shared header file for format-related information Dave Chinner
2013-11-06  1:06 ` [PATCH 04/37] xfs: split dquot buffer operations out Dave Chinner
2013-11-06  1:06 ` [PATCH 05/37] xfs: decouple inode and bmap btree header files Dave Chinner
2013-11-06  1:06 ` [PATCH 06/37] libxfs: unify xfs_btree.c with kernel code Dave Chinner
2013-11-06  1:06 ` [PATCH 07/37] libxfs: bmap btree owner swap support Dave Chinner
2013-11-06  1:06 ` [PATCH 08/37] libxfs: xfs_rtalloc.c becomes xfs_rtbitmap.c Dave Chinner
2013-11-06  1:06 ` [PATCH 09/37] libxfs: bring across inode buffer readahead verifier changes Dave Chinner
2013-11-06  1:06 ` [PATCH 10/37] libxfs: Minor cleanup and bug fix sync Dave Chinner
2013-11-06  1:06 ` [PATCH 11/37] xfs: remove newlines from strings passed to __xfs_printk Dave Chinner
2013-11-06  1:06 ` [PATCH 12/37] xfs: fix the wrong new_size/rnew_size at xfs_iext_realloc_direct() Dave Chinner
2013-11-06  1:06 ` [PATCH 13/37] xfs: fix node forward in xfs_node_toosmall Dave Chinner
2013-11-06  1:07 ` [PATCH 14/37] xfs: don't emit corruption noise on fs probes Dave Chinner
2013-11-06  1:07 ` [PATCH 15/37] libxfs: fix root inode handling inconsistencies Dave Chinner
2013-11-06 10:23   ` Christoph Hellwig
2013-11-06 23:02     ` [PATCH 15/37 V2] " Dave Chinner
2013-11-07  4:58       ` [PATCH 15/37 V3] " Dave Chinner
2013-11-07  8:11         ` Christoph Hellwig
2013-11-06  1:07 ` [PATCH 16/37] libxfs: stop caching inode structures Dave Chinner
2013-11-06  1:07 ` [PATCH 17/37] db: separate out straight buffer IO from map based IO Dave Chinner
2013-11-07 20:50   ` Christoph Hellwig
2013-11-06  1:07 ` [PATCH 18/37] db: rewrite bbmap to use xfs_buf_map Dave Chinner
2013-11-06  1:07 ` [PATCH 19/37] libxfs: refactor libxfs_buf_read_map for xfs_db Dave Chinner
2013-11-07 20:51   ` Christoph Hellwig
2013-11-06  1:07 ` [PATCH 20/37] db: rewrite IO engine to use libxfs Dave Chinner
2013-11-06  1:07 ` [PATCH 21/37] db: introduce verifier support into set_cur Dave Chinner
2013-11-06  1:07 ` [PATCH 22/37] db: indicate if the CRC on a buffer is correct or not Dave Chinner
2013-11-06  1:07 ` [PATCH 23/37] db: verify and calculate inode CRCs Dave Chinner
2013-11-06  1:07 ` [PATCH 24/37] db: verify and calculate dquot CRCs Dave Chinner
2013-11-06  1:07 ` [PATCH 25/37] db: add a special directory buffer verifier Dave Chinner
2013-11-06  1:07 ` [PATCH 26/37] db: add a special attribute " Dave Chinner
2013-11-06  1:07 ` [PATCH 27/37] db: re-enable write support for v5 filesystems Dave Chinner
2013-11-06  1:07 ` [PATCH 28/37] xfs_db: avoid libxfs buffer lookup warnings Dave Chinner
2013-11-06  2:20   ` Dave Chinner
2013-11-07 20:52   ` Christoph Hellwig
2013-11-06  1:07 ` [PATCH 29/37] " Dave Chinner
2013-11-07 20:54   ` Christoph Hellwig
2013-11-06  1:07 ` [PATCH 30/37] libxfs: work around do_div() not handling 32 bit numerators Dave Chinner
2013-11-07 20:54   ` Christoph Hellwig
2013-11-06  1:07 ` Dave Chinner [this message]
2013-11-07 20:55   ` [PATCH 31/37] db: Unwind the IO stack on exit Christoph Hellwig
2013-11-06  1:07 ` [PATCH 32/37] db: enable metadump on CRC filesystems Dave Chinner
2013-11-06  1:07 ` [PATCH 33/37] xfs: support larger inode clusters on v5 filesystems Dave Chinner
2013-11-06  1:07 ` [PATCH 34/37] xfsprogs: kill experimental warnings for " Dave Chinner
2013-11-06  1:07 ` [PATCH 35/37] repair: prefetching is turned off unnecessarily Dave Chinner
2013-11-06 10:45   ` Christoph Hellwig
2013-11-06  1:07 ` [PATCH 36/37] repair: Increase default repair parallelism on large filesystems Dave Chinner
2013-11-06 10:41   ` Christoph Hellwig
2013-11-06 19:13     ` Dave Chinner
2013-11-12 23:38       ` Dave Chinner
2013-11-13  7:55         ` Christoph Hellwig
2013-11-06  1:07 ` [PATCH 37/37] repair: fix leaf node directory data check Dave Chinner
2013-11-06 10:39   ` Christoph Hellwig
2013-11-06 10:19 ` [PATCH 00/37 V4] xfsprogs: CRC write support for xfs_db + more Christoph Hellwig
2013-11-06 19:15   ` Dave Chinner
2013-11-10  1:05 ` Rich Johnston

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