[PATCH 6.12 199/567] NFSD: use correct reservation type in nfsd4_scsi_fence_client

Greg Kroah-Hartman
2026-01-06T17:25:15Z

From: Dai Ngo <dai.ngo@oracle.com>

commit 6f52063db9aabdaabea929b1e998af98c2e8d917 upstream.

The reservation type argument for the pr_preempt call should match the
one used in nfsd4_block_get_device_info_scsi.

Fixes: f99d4fbdae67 ("nfsd: add SCSI layout support")
Cc: stable@vger.kernel.org
Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/nfsd/blocklayout.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/fs/nfsd/blocklayout.c
+++ b/fs/nfsd/blocklayout.c
@@ -341,7 +341,8 @@ nfsd4_scsi_fence_client(struct nfs4_layo
struct block_device *bdev = file->nf_file->f_path.mnt->mnt_sb->s_bdev;

bdev->bd_disk->fops->pr_ops->pr_preempt(bdev, NFSD_MDS_PR_KEY,
- nfsd4_scsi_pr_key(clp), 0, true);
+ nfsd4_scsi_pr_key(clp),
+ PR_EXCLUSIVE_ACCESS_REG_ONLY, true);
}

const struct nfsd4_layout_ops scsi_layout_ops = {