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authorDave Chinner <david@fromorbit.com>2016-01-19 08:28:36 +1100
committerDave Chinner <david@fromorbit.com>2016-01-19 08:28:36 +1100
commitee3804d9f94c5a391c66386b70b9fe5a58775507 (patch)
tree014d74ffa1cdda8f7db8e3fcd185ccb31e625724 /fs/xfs
parent4c931f770d327f4851917828a1682d030b53d021 (diff)
parent85bec5460ad8e05e0a8d70fb0f6750eb719ad092 (diff)
downloadlinux-ee3804d9f94c5a391c66386b70b9fe5a58775507.tar.gz
Merge branch 'xfs-misc-fixes-for-4.5-3' into for-next
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/xfs_buf.c10
-rw-r--r--fs/xfs/xfs_trans_ail.c1
2 files changed, 10 insertions, 1 deletions
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index ae86b16f9025..e143c7b66e35 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -1527,6 +1527,16 @@ xfs_wait_buftarg(
 	LIST_HEAD(dispose);
 	int loop = 0;
 
+	/*
+	 * We need to flush the buffer workqueue to ensure that all IO
+	 * completion processing is 100% done. Just waiting on buffer locks is
+	 * not sufficient for async IO as the reference count held over IO is
+	 * not released until after the buffer lock is dropped. Hence we need to
+	 * ensure here that all reference counts have been dropped before we
+	 * start walking the LRU list.
+	 */
+	drain_workqueue(btp->bt_mount->m_buf_workqueue);
+
 	/* loop until there is nothing left on the lru list. */
 	while (list_lru_count(&btp->bt_lru)) {
 		list_lru_walk(&btp->bt_lru, xfs_buftarg_wait_rele,
diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c
index aa67339b9537..4f18fd92ca13 100644
--- a/fs/xfs/xfs_trans_ail.c
+++ b/fs/xfs/xfs_trans_ail.c
@@ -497,7 +497,6 @@ xfsaild(
 	long		tout = 0;	/* milliseconds */
 
 	current->flags |= PF_MEMALLOC;
-	set_freezable();
 
 	while (!kthread_should_stop()) {
 		if (tout && tout <= 20)