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From: xiubli@redhat.com
To: jlayton@kernel.org
Cc: idryomov@gmail.com, ukernel@gmail.com, pdonnell@redhat.com,
	ceph-devel@vger.kernel.org, Xiubo Li <xiubli@redhat.com>
Subject: [PATCH] ceph: fix incorrectly counting the export targets
Date: Mon, 30 Aug 2021 20:33:26 +0800	[thread overview]
Message-ID: <20210830123326.487715-1-xiubli@redhat.com> (raw)

From: Xiubo Li <xiubli@redhat.com>

Signed-off-by: Xiubo Li <xiubli@redhat.com>
---
 fs/ceph/mds_client.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 7ddc36c14b92..aa0ab069db40 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -4434,7 +4434,7 @@ static void check_new_map(struct ceph_mds_client *mdsc,
 			  struct ceph_mdsmap *newmap,
 			  struct ceph_mdsmap *oldmap)
 {
-	int i, err;
+	int i, j, err;
 	int oldstate, newstate;
 	struct ceph_mds_session *s;
 	unsigned long targets[DIV_ROUND_UP(CEPH_MAX_MDS, sizeof(unsigned long))] = {0};
@@ -4443,8 +4443,10 @@ static void check_new_map(struct ceph_mds_client *mdsc,
 	     newmap->m_epoch, oldmap->m_epoch);
 
 	if (newmap->m_info) {
-		for (i = 0; i < newmap->m_info->num_export_targets; i++)
-			set_bit(newmap->m_info->export_targets[i], targets);
+		for (i = 0; i < newmap->m_num_active_mds; i++) {
+			for (j = 0; j < newmap->m_info[i].num_export_targets; j++)
+				set_bit(newmap->m_info[i].export_targets[j], targets);
+		}
 	}
 
 	for (i = 0; i < oldmap->possible_max_rank && i < mdsc->max_sessions; i++) {
-- 
2.27.0


             reply	other threads:[~2021-08-30 12:34 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-30 12:33 xiubli [this message]
2021-08-30 12:45 ` [PATCH] ceph: fix incorrectly counting the export targets Jeff Layton
2021-08-30 12:48   ` Xiubo Li
2021-08-30 12:53   ` Xiubo Li

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