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authorDarrick J. Wong <darrick.wong@oracle.com>2016-10-03 16:11:38 (GMT)
committerDarrick J. Wong <darrick.wong@oracle.com>2016-10-05 23:26:05 (GMT)
commit5e7e605c4d1b5229c7df8a71798df00a4300428b (patch)
treea2a5bf635cbb051bf86f0f5f533309b15a3db0ba /fs/xfs
parentaa8968f227a8c6c7468c9d498daf06f8dbc30af0 (diff)
downloadlinux-5e7e605c4d1b5229c7df8a71798df00a4300428b.tar.xz
xfs: cancel pending CoW reservations when destroying inodes
When destroying the inode, cancel all pending reservations in the CoW fork so that all the reserved blocks go back to the free pile. In theory this sort of cleanup is only needed to clean up after write errors. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/xfs_super.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 35c04a7..b65b979 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -49,6 +49,7 @@
#include "xfs_rmap_item.h"
#include "xfs_refcount_item.h"
#include "xfs_bmap_item.h"
+#include "xfs_reflink.h"
#include <linux/namei.h>
#include <linux/init.h>
@@ -938,6 +939,7 @@ xfs_fs_destroy_inode(
struct inode *inode)
{
struct xfs_inode *ip = XFS_I(inode);
+ int error;
trace_xfs_destroy_inode(ip);
@@ -945,6 +947,12 @@ xfs_fs_destroy_inode(
XFS_STATS_INC(ip->i_mount, vn_rele);
XFS_STATS_INC(ip->i_mount, vn_remove);
+ error = xfs_reflink_cancel_cow_range(ip, 0, NULLFILEOFF);
+ if (error && !XFS_FORCED_SHUTDOWN(ip->i_mount))
+ xfs_warn(ip->i_mount, "Error %d while evicting CoW blocks "
+ "for inode %llu.",
+ error, ip->i_ino);
+
xfs_inactive(ip);
ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) || ip->i_delayed_blks == 0);