From: Dai Ngo <dai.ngo@oracle.com>
Date: Wed, 5 Nov 2025 20:45:54 +0000 (-0800)
Subject: NFSD: use correct reservation type in nfsd4_scsi_fence_client
X-Git-Tag: v6.18.3~123
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8c5ce5fafe9c78426ab66416b3373796b9b1db45;p=thirdparty%2Fkernel%2Fstable.git

NFSD: use correct reservation type in nfsd4_scsi_fence_client

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>
---

diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c
index 425648565ab2d..e9512c34c9dcf 100644
--- a/fs/nfsd/blocklayout.c
+++ b/fs/nfsd/blocklayout.c
@@ -344,7 +344,8 @@ nfsd4_scsi_fence_client(struct nfs4_layout_stateid *ls, struct nfsd_file *file)
 	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 = {