From: Christoph Hellwig <hch@lst.de>
To: linux-xfs@vger.kernel.org
Subject: [PATCH 4/5] xfs: print dangling delalloc extents
Date: Thu, 20 Sep 2018 16:42:19 +0200 [thread overview]
Message-ID: <20180920144220.2181-5-hch@lst.de> (raw)
In-Reply-To: <20180920144220.2181-1-hch@lst.de>
Instead of just asserting that we have no delalloc space dangling
in an inode that gets freed print the actual offenders for debug
mode.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/xfs/xfs_super.c | 32 +++++++++++++++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 207ee302b1bb..62850b420dc7 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -933,6 +933,31 @@ xfs_fs_alloc_inode(
return NULL;
}
+#ifdef DEBUG
+static void
+xfs_check_delalloc(
+ struct xfs_inode *ip,
+ int whichfork)
+{
+ struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, whichfork);
+ struct xfs_bmbt_irec got;
+ struct xfs_iext_cursor icur;
+
+ if (!ifp || !xfs_iext_lookup_extent(ip, ifp, 0, &icur, &got))
+ return;
+ do {
+ if (isnullstartblock(got.br_startblock)) {
+ xfs_warn(ip->i_mount,
+ "%s fork has delalloc extent at [0x%llx:0x%llx]",
+ whichfork == XFS_DATA_FORK ? "data" : "cow",
+ got.br_startoff, got.br_blockcount);
+ }
+ } while (xfs_iext_next_extent(ifp, &icur, &got));
+}
+#else
+#define xfs_check_delalloc(ip, whichfork) do { } while (0)
+#endif
+
/*
* Now that the generic code is guaranteed not to be accessing
* the linux inode, we can inactivate and reclaim the inode.
@@ -951,7 +976,12 @@ xfs_fs_destroy_inode(
xfs_inactive(ip);
- ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) || ip->i_delayed_blks == 0);
+ if (!XFS_FORCED_SHUTDOWN(ip->i_mount) && ip->i_delayed_blks) {
+ xfs_check_delalloc(ip, XFS_DATA_FORK);
+ xfs_check_delalloc(ip, XFS_COW_FORK);
+ ASSERT(0);
+ }
+
XFS_STATS_INC(ip->i_mount, vn_reclaim);
/*
--
2.18.0
next prev parent reply other threads:[~2018-09-20 20:26 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-20 14:42 more reflink fixes & debug Christoph Hellwig
2018-09-20 14:42 ` [PATCH 1/5] xfs: cancel COW blocks before swapext Christoph Hellwig
2018-09-20 20:04 ` Darrick J. Wong
2018-09-27 15:07 ` Brian Foster
2018-09-30 22:50 ` Christoph Hellwig
2018-10-01 11:03 ` Brian Foster
2018-09-20 14:42 ` [PATCH 2/5] xfs: skip delalloc COW blocks in xfs_reflink_end_cow Christoph Hellwig
2018-09-20 20:22 ` Darrick J. Wong
2018-09-20 14:42 ` [PATCH 3/5] xfs: fix fork selection in xfs_find_trim_cow_extent Christoph Hellwig
2018-09-20 14:42 ` Christoph Hellwig [this message]
2018-09-20 20:06 ` [PATCH 4/5] xfs: print dangling delalloc extents Darrick J. Wong
2018-09-27 15:07 ` Brian Foster
2018-09-20 14:42 ` [PATCH 5/5] xfs: introduce an always_cow mode Christoph Hellwig
2018-09-20 20:17 ` Darrick J. Wong
2018-09-20 21:23 ` Dave Chinner
2018-09-21 5:23 ` Christoph Hellwig
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