922dab6134
This adds support and switches rbd to a new, more reliable version of watch/notify protocol. As with the OSD client update, this is mostly about getting the right structures linked into the right places so that reconnects are properly sent when needed. watch/notify v2 also requires sending regular pings to the OSDs - send_linger_ping(). A major change from the old watch/notify implementation is the introduction of ceph_osd_linger_request - linger requests no longer piggy back on ceph_osd_request. ceph_osd_event has been merged into ceph_osd_linger_request. All the details are now hidden within libceph, the interface consists of a simple pair of watch/unwatch functions and ceph_osdc_notify_ack(). ceph_osdc_watch() does return ceph_osd_linger_request, but only to keep the lifetime management simple. ceph_osdc_notify_ack() accepts an optional data payload, which is relayed back to the notifier. Portions of this patch are loosely based on work by Douglas Fuller <dfuller@redhat.com> and Mike Christie <michaelc@cs.wisc.edu>. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
61 lines
1.1 KiB
C
61 lines
1.1 KiB
C
/*
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* Ceph string constants
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*/
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#include <linux/module.h>
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#include <linux/ceph/types.h>
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const char *ceph_entity_type_name(int type)
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{
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switch (type) {
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case CEPH_ENTITY_TYPE_MDS: return "mds";
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case CEPH_ENTITY_TYPE_OSD: return "osd";
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case CEPH_ENTITY_TYPE_MON: return "mon";
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case CEPH_ENTITY_TYPE_CLIENT: return "client";
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case CEPH_ENTITY_TYPE_AUTH: return "auth";
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default: return "unknown";
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}
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}
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const char *ceph_osd_op_name(int op)
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{
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switch (op) {
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#define GENERATE_CASE(op, opcode, str) case CEPH_OSD_OP_##op: return (str);
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__CEPH_FORALL_OSD_OPS(GENERATE_CASE)
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#undef GENERATE_CASE
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default:
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return "???";
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}
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}
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const char *ceph_osd_watch_op_name(int o)
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{
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switch (o) {
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case CEPH_OSD_WATCH_OP_UNWATCH:
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return "unwatch";
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case CEPH_OSD_WATCH_OP_WATCH:
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return "watch";
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case CEPH_OSD_WATCH_OP_RECONNECT:
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return "reconnect";
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case CEPH_OSD_WATCH_OP_PING:
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return "ping";
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default:
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return "???";
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}
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}
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const char *ceph_osd_state_name(int s)
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{
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switch (s) {
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case CEPH_OSD_EXISTS:
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return "exists";
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case CEPH_OSD_UP:
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return "up";
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case CEPH_OSD_AUTOOUT:
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return "autoout";
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case CEPH_OSD_NEW:
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return "new";
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default:
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return "???";
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}
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}
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