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[CANDIDATE,v6.1,5/5] xfs: get root inode correctly at bulkstat

Message ID 20230804171223.1393045-5-tytso@mit.edu (mailing list archive)
State Superseded, archived
Headers show
Series [CANDIDATE,v6.1,1/5] xfs: hoist refcount record merge predicates | expand

Commit Message

Theodore Ts'o Aug. 4, 2023, 5:12 p.m. UTC 
From: Hironori Shiina <shiina.hironori@gmail.com>

The root inode number should be set to `breq->startino` for getting stat
information of the root when XFS_BULK_IREQ_SPECIAL_ROOT is used.
Otherwise, the inode search is started from 1
(XFS_BULK_IREQ_SPECIAL_ROOT) and the inode with the lowest number in a
filesystem is returned.

Fixes: bf3cb3944792 ("xfs: allow single bulkstat of special inodes")
Signed-off-by: Hironori Shiina <shiina.hironori@fujitsu.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
(cherry picked from commit 817644fa4525258992f17fecf4f1d6cdd2e1b731)
---
 fs/xfs/xfs_ioctl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 1f783e979629..85fbb3b71d1c 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -754,7 +754,7 @@  xfs_bulkstat_fmt(
 static int
 xfs_bulk_ireq_setup(
 	struct xfs_mount	*mp,
-	struct xfs_bulk_ireq	*hdr,
+	const struct xfs_bulk_ireq *hdr,
 	struct xfs_ibulk	*breq,
 	void __user		*ubuffer)
 {
@@ -780,7 +780,7 @@  xfs_bulk_ireq_setup(
 
 		switch (hdr->ino) {
 		case XFS_BULK_IREQ_SPECIAL_ROOT:
-			hdr->ino = mp->m_sb.sb_rootino;
+			breq->startino = mp->m_sb.sb_rootino;
 			break;
 		default:
 			return -EINVAL;