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authorYan, Zheng <zyan@redhat.com>2019-07-25 20:16:39 +0800
committerIlya Dryomov <idryomov@gmail.com>2019-09-16 12:06:23 +0200
commit120a75ea9f4ba02f852171e75d44f29139b9c83e (patch)
tree6944f51971e6adea422725866c0e81e5249ebc18 /net/ceph
parente09580b343aa117fd07c1bb7f7dfc5bc630a2953 (diff)
downloadlinux-120a75ea9f4ba02f852171e75d44f29139b9c83e.tar.bz2
libceph: add function that reset client's entity addr
This function also re-open connections to OSD/MON, and re-send in-flight OSD requests after re-opening connections to OSD. Signed-off-by: "Yan, Zheng" <zyan@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'net/ceph')
-rw-r--r--net/ceph/ceph_common.c8
-rw-r--r--net/ceph/messenger.c6
-rw-r--r--net/ceph/mon_client.c7
-rw-r--r--net/ceph/osd_client.c18
4 files changed, 39 insertions, 0 deletions
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index 4eeea4d5c3ef..b412a3ccc4fc 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -694,6 +694,14 @@ void ceph_destroy_client(struct ceph_client *client)
}
EXPORT_SYMBOL(ceph_destroy_client);
+void ceph_reset_client_addr(struct ceph_client *client)
+{
+ ceph_messenger_reset_nonce(&client->msgr);
+ ceph_monc_reopen_session(&client->monc);
+ ceph_osdc_reopen_osds(&client->osdc);
+}
+EXPORT_SYMBOL(ceph_reset_client_addr);
+
/*
* true if we have the mon map (and have thus joined the cluster)
*/
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 962f521c863e..e4cb3db2ee77 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -3031,6 +3031,12 @@ static void con_fault(struct ceph_connection *con)
}
+void ceph_messenger_reset_nonce(struct ceph_messenger *msgr)
+{
+ u32 nonce = le32_to_cpu(msgr->inst.addr.nonce) + 1000000;
+ msgr->inst.addr.nonce = cpu_to_le32(nonce);
+ encode_my_addr(msgr);
+}
/*
* initialize a new messenger instance
diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index 0520bf9825aa..7256c402ebaa 100644
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -213,6 +213,13 @@ static void reopen_session(struct ceph_mon_client *monc)
__open_session(monc);
}
+void ceph_monc_reopen_session(struct ceph_mon_client *monc)
+{
+ mutex_lock(&monc->mutex);
+ reopen_session(monc);
+ mutex_unlock(&monc->mutex);
+}
+
static void un_backoff(struct ceph_mon_client *monc)
{
monc->hunt_mult /= 2; /* reduce by 50% */
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 78ae6e8c953d..a252ba80dd82 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -5087,6 +5087,24 @@ out_put_req:
EXPORT_SYMBOL(ceph_osdc_call);
/*
+ * reset all osd connections
+ */
+void ceph_osdc_reopen_osds(struct ceph_osd_client *osdc)
+{
+ struct rb_node *n;
+
+ down_write(&osdc->lock);
+ for (n = rb_first(&osdc->osds); n; ) {
+ struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node);
+
+ n = rb_next(n);
+ if (!reopen_osd(osd))
+ kick_osd_requests(osd);
+ }
+ up_write(&osdc->lock);
+}
+
+/*
* init, shutdown
*/
int ceph_osdc_init(struct ceph_osd_client *osdc, struct ceph_client *client)