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authorIlya Dryomov <idryomov@gmail.com>2016-04-28 16:07:26 +0200
committerIlya Dryomov <idryomov@gmail.com>2016-05-26 01:14:03 +0200
commit5aea3dcd50215fa9563270251ad7323e2f2490ee (patch)
tree1bcaaf4d5ff7b443c3776af771b228a5fad903b0 /net/ceph/debugfs.c
parent9dd2845ccb40452d4ac943231ea34aade4a02c68 (diff)
downloadlinux-5aea3dcd50215fa9563270251ad7323e2f2490ee.tar.bz2
libceph: a major OSD client update
This is a major sync up, up to ~Jewel. The highlights are: - per-session request trees (vs a global per-client tree) - per-session locking (vs a global per-client rwlock) - homeless OSD session - no ad-hoc global per-client lists - support for pool quotas - foundation for watch/notify v2 support - foundation for map check (pool deletion detection) support The switchover is incomplete: lingering requests can be setup and teared down but aren't ever reestablished. This functionality is restored with the introduction of the new lingering infrastructure (ceph_osd_linger_request, linger_work, etc) in a later commit. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'net/ceph/debugfs.c')
-rw-r--r--net/ceph/debugfs.c34
1 files changed, 26 insertions, 8 deletions
diff --git a/net/ceph/debugfs.c b/net/ceph/debugfs.c
index 6d3ff713edeb..61dbd9de4650 100644
--- a/net/ceph/debugfs.c
+++ b/net/ceph/debugfs.c
@@ -182,21 +182,39 @@ static void dump_request(struct seq_file *s, struct ceph_osd_request *req)
seq_putc(s, '\n');
}
+static void dump_requests(struct seq_file *s, struct ceph_osd *osd)
+{
+ struct rb_node *n;
+
+ mutex_lock(&osd->lock);
+ for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) {
+ struct ceph_osd_request *req =
+ rb_entry(n, struct ceph_osd_request, r_node);
+
+ dump_request(s, req);
+ }
+
+ mutex_unlock(&osd->lock);
+}
+
static int osdc_show(struct seq_file *s, void *pp)
{
struct ceph_client *client = s->private;
struct ceph_osd_client *osdc = &client->osdc;
- struct rb_node *p;
-
- mutex_lock(&osdc->request_mutex);
- for (p = rb_first(&osdc->requests); p; p = rb_next(p)) {
- struct ceph_osd_request *req;
+ struct rb_node *n;
- req = rb_entry(p, struct ceph_osd_request, r_node);
+ down_read(&osdc->lock);
+ seq_printf(s, "REQUESTS %d homeless %d\n",
+ atomic_read(&osdc->num_requests),
+ atomic_read(&osdc->num_homeless));
+ for (n = rb_first(&osdc->osds); n; n = rb_next(n)) {
+ struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node);
- dump_request(s, req);
+ dump_requests(s, osd);
}
- mutex_unlock(&osdc->request_mutex);
+ dump_requests(s, &osdc->homeless_osd);
+
+ up_read(&osdc->lock);
return 0;
}