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authorSage Weil <sage@newdream.net>2010-06-09 16:52:04 -0700
committerSage Weil <sage@newdream.net>2010-06-10 13:30:25 -0700
commit2b2300d62ea413bec631d5b880effa2cc5363acb (patch)
tree50707a1b8a547d781dc23fd830c23d580671c8a8
parent3d7ded4d81d807c2f75f310a8d74a5d72be13a1b (diff)
downloadlinux-2b2300d62ea413bec631d5b880effa2cc5363acb.tar.bz2
ceph: try to send partial cap release on cap message on missing inode
If we have enough memory to allocate a new cap release message, do so, so that we can send a partial release message immediately. This keeps us from making the MDS wait when the cap release it needs is in a partially full release message. If we fail because of ENOMEM, oh well, they'll just have to wait a bit longer. Signed-off-by: Sage Weil <sage@newdream.net>
-rw-r--r--fs/ceph/caps.c1
-rw-r--r--fs/ceph/mds_client.c10
-rw-r--r--fs/ceph/mds_client.h3
3 files changed, 9 insertions, 5 deletions
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 7c692e746237..619b61655ee5 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -2708,6 +2708,7 @@ void ceph_handle_caps(struct ceph_mds_session *session,
* along for the mds (who clearly thinks we still have this
* cap).
*/
+ ceph_add_cap_releases(mdsc, session, -1);
ceph_send_cap_releases(mdsc, session);
goto done;
}
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index d28b6a9c0f96..1766947fc07a 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1066,9 +1066,9 @@ static int trim_caps(struct ceph_mds_client *mdsc,
*
* Called under s_mutex.
*/
-static int add_cap_releases(struct ceph_mds_client *mdsc,
- struct ceph_mds_session *session,
- int extra)
+int ceph_add_cap_releases(struct ceph_mds_client *mdsc,
+ struct ceph_mds_session *session,
+ int extra)
{
struct ceph_msg *msg;
struct ceph_mds_cap_release *head;
@@ -1980,7 +1980,7 @@ out_err:
}
mutex_unlock(&mdsc->mutex);
- add_cap_releases(mdsc, req->r_session, -1);
+ ceph_add_cap_releases(mdsc, req->r_session, -1);
mutex_unlock(&session->s_mutex);
/* kick calling process */
@@ -2690,7 +2690,7 @@ static void delayed_work(struct work_struct *work)
send_renew_caps(mdsc, s);
else
ceph_con_keepalive(&s->s_con);
- add_cap_releases(mdsc, s, -1);
+ ceph_add_cap_releases(mdsc, s, -1);
if (s->s_state == CEPH_MDS_SESSION_OPEN ||
s->s_state == CEPH_MDS_SESSION_HUNG)
ceph_send_cap_releases(mdsc, s);
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index e43752b52635..b292fa42a66d 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -322,6 +322,9 @@ static inline void ceph_mdsc_put_request(struct ceph_mds_request *req)
kref_put(&req->r_kref, ceph_mdsc_release_request);
}
+extern int ceph_add_cap_releases(struct ceph_mds_client *mdsc,
+ struct ceph_mds_session *session,
+ int extra);
extern void ceph_send_cap_releases(struct ceph_mds_client *mdsc,
struct ceph_mds_session *session);