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libceph: support for CEPH_OSD_OP_LIST_WATCHERS

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Add support for this Ceph OSD op, needed to support the RBD exclusive
lock feature.

Signed-off-by: Douglas Fuller <dfuller@redhat.com>
[idryomov@gmail.com: refactor, misc fixes throughout]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Alex Elder <elder@linaro.org>
This commit is contained in:
Douglas Fuller
2015-07-17 13:18:07 -07:00
committed by Ilya Dryomov
parent f01d5cb24e
commit a4ed38d7a1
2 changed files with 131 additions and 1 deletions
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15
include/linux/ceph/osd_client.h
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@@ -120,6 +120,9 @@ struct ceph_osd_req_op {
struct ceph_osd_data request_data;
struct ceph_osd_data response_data;
} notify;
struct {
struct ceph_osd_data response_data;
} list_watchers;
struct {
u64 expected_object_size;
u64 expected_write_size;
@@ -249,6 +252,12 @@ struct ceph_osd_linger_request {
size_t *preply_len;
};
struct ceph_watch_item {
struct ceph_entity_name name;
u64 cookie;
struct ceph_entity_addr addr;
};
struct ceph_osd_client {
struct ceph_client *client;
@@ -346,7 +355,6 @@ extern void osd_req_op_cls_response_data_pages(struct ceph_osd_request *,
struct page **pages, u64 length,
u32 alignment, bool pages_from_pool,
bool own_pages);
extern void osd_req_op_cls_init(struct ceph_osd_request *osd_req,
unsigned int which, u16 opcode,
const char *class, const char *method);
@@ -434,5 +442,10 @@ int ceph_osdc_notify(struct ceph_osd_client *osdc,
size_t *preply_len);
int ceph_osdc_watch_check(struct ceph_osd_client *osdc,
struct ceph_osd_linger_request *lreq);
int ceph_osdc_list_watchers(struct ceph_osd_client *osdc,
struct ceph_object_id *oid,
struct ceph_object_locator *oloc,
struct ceph_watch_item **watchers,
u32 *num_watchers);
#endif