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From:   Richard Weinberger <richard@nod.at>
To:     linux-nfs@vger.kernel.org
Cc:     david@sigma-star.at, bfields@fieldses.org,
        luis.turcitu@appsbroker.com, david.young@appsbroker.com,
        david.oberhollenzer@sigma-star.at, trond.myklebust@hammerspace.com,
        anna.schumaker@netapp.com, chris.chilvers@appsbroker.com,
        Richard Weinberger <richard@nod.at>
Subject: [RFC PATCH 4/6] export: Record mounted volumes
Date:   Thu, 17 Feb 2022 14:15:29 +0100
Message-Id: <20220217131531.2890-5-richard@nod.at>
In-Reply-To: <20220217131531.2890-1-richard@nod.at>
References: <20220217131531.2890-1-richard@nod.at>
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As soon a client mounts a volume, record it in the database
to be able to uncover NFS subvolumes after a reboot.

Signed-off-by: Richard Weinberger <richard@nod.at>
---
 support/export/cache.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/support/export/cache.c b/support/export/cache.c
index 6039745e..b5763b1d 100644
--- a/support/export/cache.c
+++ b/support/export/cache.c
@@ -967,8 +967,10 @@ static void nfsd_fh(int f)
 	 * line.
 	 */
 	qword_addint(&bp, &blen, 0x7fffffff);
-	if (found)
+	if (found) {
+		reexpdb_add_subvolume(found_path);
 		qword_add(&bp, &blen, found_path);
+	}
 	qword_addeol(&bp, &blen);
 	if (blen <=3D 0 || cache_write(f, buf, bp - buf) !=3D bp - buf)
 		xlog(L_ERROR, "nfsd_fh: error writing reply");
--=20
2.31.1