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authorXiubo Li <xiubli@redhat.com>2021-07-05 09:22:55 +0800
committerIlya Dryomov <idryomov@gmail.com>2021-09-02 22:49:16 +0200
commit59b312f36230ea91ebb6ce1b11f2781604495d30 (patch)
treedd7f238d7f7f8aebb13dc6462dc03de92bba9d8b /fs/ceph
parentfba97e8025015b63b1bdb73cd868c8ea832a1620 (diff)
ceph: make iterate_sessions a global symbol
Signed-off-by: Xiubo Li <xiubli@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph')
-rw-r--r--fs/ceph/caps.c26
-rw-r--r--fs/ceph/mds_client.c49
-rw-r--r--fs/ceph/mds_client.h3
3 files changed, 36 insertions, 42 deletions
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index c2d654156783..a42dbc343749 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -4226,33 +4226,9 @@ static void flush_dirty_session_caps(struct ceph_mds_session *s)
dout("flush_dirty_caps done\n");
}
-static void iterate_sessions(struct ceph_mds_client *mdsc,
- void (*cb)(struct ceph_mds_session *))
-{
- int mds;
-
- mutex_lock(&mdsc->mutex);
- for (mds = 0; mds < mdsc->max_sessions; ++mds) {
- struct ceph_mds_session *s;
-
- if (!mdsc->sessions[mds])
- continue;
-
- s = ceph_get_mds_session(mdsc->sessions[mds]);
- if (!s)
- continue;
-
- mutex_unlock(&mdsc->mutex);
- cb(s);
- ceph_put_mds_session(s);
- mutex_lock(&mdsc->mutex);
- }
- mutex_unlock(&mdsc->mutex);
-}
-
void ceph_flush_dirty_caps(struct ceph_mds_client *mdsc)
{
- iterate_sessions(mdsc, flush_dirty_session_caps);
+ ceph_mdsc_iterate_sessions(mdsc, flush_dirty_session_caps, true);
}
void __ceph_touch_fmode(struct ceph_inode_info *ci,
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index b21c44af53bf..926971822174 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -811,6 +811,33 @@ static void put_request_session(struct ceph_mds_request *req)
}
}
+void ceph_mdsc_iterate_sessions(struct ceph_mds_client *mdsc,
+ void (*cb)(struct ceph_mds_session *),
+ bool check_state)
+{
+ int mds;
+
+ mutex_lock(&mdsc->mutex);
+ for (mds = 0; mds < mdsc->max_sessions; ++mds) {
+ struct ceph_mds_session *s;
+
+ s = __ceph_lookup_mds_session(mdsc, mds);
+ if (!s)
+ continue;
+
+ if (check_state && !check_session_state(s)) {
+ ceph_put_mds_session(s);
+ continue;
+ }
+
+ mutex_unlock(&mdsc->mutex);
+ cb(s);
+ ceph_put_mds_session(s);
+ mutex_lock(&mdsc->mutex);
+ }
+ mutex_unlock(&mdsc->mutex);
+}
+
void ceph_mdsc_release_request(struct kref *kref)
{
struct ceph_mds_request *req = container_of(kref,
@@ -4411,24 +4438,12 @@ void ceph_mdsc_lease_send_msg(struct ceph_mds_session *session,
}
/*
- * lock unlock sessions, to wait ongoing session activities
+ * lock unlock the session, to wait ongoing session activities
*/
-static void lock_unlock_sessions(struct ceph_mds_client *mdsc)
+static void lock_unlock_session(struct ceph_mds_session *s)
{
- int i;
-
- mutex_lock(&mdsc->mutex);
- for (i = 0; i < mdsc->max_sessions; i++) {
- struct ceph_mds_session *s = __ceph_lookup_mds_session(mdsc, i);
- if (!s)
- continue;
- mutex_unlock(&mdsc->mutex);
- mutex_lock(&s->s_mutex);
- mutex_unlock(&s->s_mutex);
- ceph_put_mds_session(s);
- mutex_lock(&mdsc->mutex);
- }
- mutex_unlock(&mdsc->mutex);
+ mutex_lock(&s->s_mutex);
+ mutex_unlock(&s->s_mutex);
}
static void maybe_recover_session(struct ceph_mds_client *mdsc)
@@ -4687,7 +4702,7 @@ void ceph_mdsc_pre_umount(struct ceph_mds_client *mdsc)
dout("pre_umount\n");
mdsc->stopping = 1;
- lock_unlock_sessions(mdsc);
+ ceph_mdsc_iterate_sessions(mdsc, lock_unlock_session, false);
ceph_flush_dirty_caps(mdsc);
wait_requests(mdsc);
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index be4a97664464..4a75a14c2a88 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -522,6 +522,9 @@ static inline void ceph_mdsc_put_request(struct ceph_mds_request *req)
kref_put(&req->r_kref, ceph_mdsc_release_request);
}
+extern void ceph_mdsc_iterate_sessions(struct ceph_mds_client *mdsc,
+ void (*cb)(struct ceph_mds_session *),
+ bool check_state);
extern struct ceph_msg *ceph_create_session_msg(u32 op, u64 seq);
extern void __ceph_queue_cap_release(struct ceph_mds_session *session,
struct ceph_cap *cap);