[PATCH] xfs: don't update lastino for FSBULKSTAT_SINGLE

["Darrick J. Wong" <darrick.wong@oracle.com>]

From: Darrick J. Wong <darrick.wong@oracle.com>

The kernel test robot found a regression of xfs/054 in the conversion of
bulkstat to use the new iwalk infrastructure -- if a caller set *lastip
= 128 and invoked FSBULKSTAT_SINGLE, the bstat info would be for inode
128, but *lastip would be increased by the kernel to 129.

FSBULKSTAT_SINGLE never incremented lastip before, so it's incorrect to
make such an update to the internal lastino value now.

Fixes: 2810bd6840e463 ("xfs: convert bulkstat to new iwalk infrastructure")
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 fs/xfs/xfs_ioctl.c |    1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 6bf04e71325b..1876461e5104 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -797,7 +797,6 @@ xfs_ioc_fsbulkstat(
 		breq.startino = lastino;
 		breq.icount = 1;
 		error = xfs_bulkstat_one(&breq, xfs_fsbulkstat_one_fmt);
-		lastino = breq.startino;
 	} else {	/* XFS_IOC_FSBULKSTAT */
 		breq.startino = lastino ? lastino + 1 : 0;
 		error = xfs_bulkstat(&breq, xfs_fsbulkstat_one_fmt);