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authorGreg Farnum <gregf@hq.newdream.net>2010-10-07 02:46:30 +0400
committerSage Weil <sage@newdream.net>2010-10-07 19:00:24 +0400
commit21b559de56695d36b3f0819b7e2454737db254f8 (patch)
tree41559b37754818d637d11aec1b61a138d7a8efb5 /fs
parentbba0cd0e3d97472855840af817b766e3f632a501 (diff)
downloadlinux-21b559de56695d36b3f0819b7e2454737db254f8.tar.xz
ceph: send cap release message early on failed revoke.
If an MDS tries to revoke caps that we don't have, we want to send releases early since they probably contain the caps message the MDS is looking for. Previously, we only sent the messages if we didn't have the inode either. But in a multi-mds system we can retain the inode after dropping all caps for a single MDS. Signed-off-by: Greg Farnum <gregf@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs')
-rw-r--r--fs/ceph/caps.c23
1 files changed, 13 insertions, 10 deletions
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 73c153092f72..97de325a49f8 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -2774,15 +2774,7 @@ void ceph_handle_caps(struct ceph_mds_session *session,
if (op == CEPH_CAP_OP_IMPORT)
__queue_cap_release(session, vino.ino, cap_id,
mseq, seq);
-
- /*
- * send any full release message to try to move things
- * along for the mds (who clearly thinks we still have this
- * cap).
- */
- ceph_add_cap_releases(mdsc, session);
- ceph_send_cap_releases(mdsc, session);
- goto done;
+ goto flush_cap_releases;
}
/* these will work even if we don't have a cap yet */
@@ -2810,7 +2802,7 @@ void ceph_handle_caps(struct ceph_mds_session *session,
dout(" no cap on %p ino %llx.%llx from mds%d\n",
inode, ceph_ino(inode), ceph_snap(inode), mds);
spin_unlock(&inode->i_lock);
- goto done;
+ goto flush_cap_releases;
}
/* note that each of these drops i_lock for us */
@@ -2834,6 +2826,17 @@ void ceph_handle_caps(struct ceph_mds_session *session,
ceph_cap_op_name(op));
}
+ goto done;
+
+flush_cap_releases:
+ /*
+ * send any full release message to try to move things
+ * along for the mds (who clearly thinks we still have this
+ * cap).
+ */
+ ceph_add_cap_releases(mdsc, session);
+ ceph_send_cap_releases(mdsc, session);
+
done:
mutex_unlock(&session->s_mutex);
done_unlocked: