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authorDarrick J. Wong <darrick.wong@oracle.com>2017-04-21 01:09:05 +0300
committerDarrick J. Wong <darrick.wong@oracle.com>2017-04-25 19:40:42 +0300
commitc4cf1acdb186436b88cc9aeaf08322bc49fec183 (patch)
tree182b16a4ff2cb81bf720e4d7d2666fa4851cee60 /fs/xfs/xfs_bmap_item.c
parent20e8a063786050083fe05b4f45be338c60b49126 (diff)
downloadlinux-c4cf1acdb186436b88cc9aeaf08322bc49fec183.tar.xz
xfs: better log intent item refcount checking
Use ASSERTs on the log intent item refcounts so that we fail noisily if anyone tries to double-free the item. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_bmap_item.c')
-rw-r--r--fs/xfs/xfs_bmap_item.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/xfs/xfs_bmap_item.c b/fs/xfs/xfs_bmap_item.c
index 9bf57c76623b..2d7017373e20 100644
--- a/fs/xfs/xfs_bmap_item.c
+++ b/fs/xfs/xfs_bmap_item.c
@@ -215,6 +215,7 @@ void
xfs_bui_release(
struct xfs_bui_log_item *buip)
{
+ ASSERT(atomic_read(&buip->bui_refcount) > 0);
if (atomic_dec_and_test(&buip->bui_refcount)) {
xfs_trans_ail_remove(&buip->bui_item, SHUTDOWN_LOG_IO_ERROR);
xfs_bui_item_free(buip);