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authorIlya Dryomov <ilya.dryomov@inktank.com>2014-01-31 19:33:39 +0200
committerSage Weil <sage@inktank.com>2014-02-07 10:45:42 -0800
commit0bbfdfe8d25fcc1d5c2edb6b060fb0c5cf66aff9 (patch)
tree118516e69c29b7da8e3129470aff5c3eb4dbfef6 /net
parentc172ec5c8dc8c09dd5958f4ae542fa321bb15a92 (diff)
downloadlinux-stericsson-0bbfdfe8d25fcc1d5c2edb6b060fb0c5cf66aff9.tar.gz
libceph: factor out logic from ceph_osdc_start_request()
Factor out logic from ceph_osdc_start_request() into a new helper, __ceph_osdc_start_request(). ceph_osdc_start_request() now amounts to taking locks and calling __ceph_osdc_start_request(). Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Sage Weil <sage@inktank.com>
Diffstat (limited to 'net')
-rw-r--r--net/ceph/osd_client.c62
1 files changed, 39 insertions, 23 deletions
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 166d4c7ba065..2aa82b6bb305 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -1427,6 +1427,40 @@ static void __send_queued(struct ceph_osd_client *osdc)
}
/*
+ * Caller should hold map_sem for read and request_mutex.
+ */
+static int __ceph_osdc_start_request(struct ceph_osd_client *osdc,
+ struct ceph_osd_request *req,
+ bool nofail)
+{
+ int rc;
+
+ __register_request(osdc, req);
+ req->r_sent = 0;
+ req->r_got_reply = 0;
+ rc = __map_request(osdc, req, 0);
+ if (rc < 0) {
+ if (nofail) {
+ dout("osdc_start_request failed map, "
+ " will retry %lld\n", req->r_tid);
+ rc = 0;
+ } else {
+ __unregister_request(osdc, req);
+ }
+ return rc;
+ }
+
+ if (req->r_osd == NULL) {
+ dout("send_request %p no up osds in pg\n", req);
+ ceph_monc_request_next_osdmap(&osdc->client->monc);
+ } else {
+ __send_queued(osdc);
+ }
+
+ return 0;
+}
+
+/*
* Timeout callback, called every N seconds when 1 or more osd
* requests has been active for more than N seconds. When this
* happens, we ping all OSDs with requests who have timed out to
@@ -2351,34 +2385,16 @@ int ceph_osdc_start_request(struct ceph_osd_client *osdc,
struct ceph_osd_request *req,
bool nofail)
{
- int rc = 0;
+ int rc;
down_read(&osdc->map_sem);
mutex_lock(&osdc->request_mutex);
- __register_request(osdc, req);
- req->r_sent = 0;
- req->r_got_reply = 0;
- rc = __map_request(osdc, req, 0);
- if (rc < 0) {
- if (nofail) {
- dout("osdc_start_request failed map, "
- " will retry %lld\n", req->r_tid);
- rc = 0;
- } else {
- __unregister_request(osdc, req);
- }
- goto out_unlock;
- }
- if (req->r_osd == NULL) {
- dout("send_request %p no up osds in pg\n", req);
- ceph_monc_request_next_osdmap(&osdc->client->monc);
- } else {
- __send_queued(osdc);
- }
- rc = 0;
-out_unlock:
+
+ rc = __ceph_osdc_start_request(osdc, req, nofail);
+
mutex_unlock(&osdc->request_mutex);
up_read(&osdc->map_sem);
+
return rc;
}
EXPORT_SYMBOL(ceph_osdc_start_request);