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author | Ilya Dryomov <idryomov@gmail.com> | 2016-04-28 14:07:27 (GMT) |
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committer | Ilya Dryomov <idryomov@gmail.com> | 2016-05-25 23:15:29 (GMT) |
commit | d0b19705e99939f5ae5aa9b57bfe41dd4777d951 (patch) | |
tree | 22c6202c5fc1bf28ac95fdf2157329aa171270e5 /include | |
parent | b07d3c4bd7270c74e2b6803af8ac8a00cb3e5ed2 (diff) | |
download | linux-d0b19705e99939f5ae5aa9b57bfe41dd4777d951.tar.xz |
libceph: async MON client generic requests
For map check, we are going to need to send CEPH_MSG_MON_GET_VERSION
messages asynchronously and get a callback on completion. Refactor MON
client to allow firing off generic requests asynchronously and add an
async variant of ceph_monc_get_version(). ceph_monc_do_statfs() is
switched over and remains sync.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/ceph/mon_client.h | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/include/linux/ceph/mon_client.h b/include/linux/ceph/mon_client.h index c14e9d8..19800d9 100644 --- a/include/linux/ceph/mon_client.h +++ b/include/linux/ceph/mon_client.h @@ -39,20 +39,31 @@ struct ceph_mon_request { ceph_monc_request_func_t do_request; }; +typedef void (*ceph_monc_callback_t)(struct ceph_mon_generic_request *); + /* * ceph_mon_generic_request is being used for the statfs and * mon_get_version requests which are being done a bit differently * because we need to get data back to the caller */ struct ceph_mon_generic_request { + struct ceph_mon_client *monc; struct kref kref; u64 tid; struct rb_node node; int result; - void *buf; + struct completion completion; + ceph_monc_callback_t complete_cb; + u64 private_data; /* r_tid/linger_id */ + struct ceph_msg *request; /* original request */ struct ceph_msg *reply; /* and reply */ + + union { + struct ceph_statfs *st; + u64 newest; + } u; }; struct ceph_mon_client { @@ -124,8 +135,10 @@ extern int ceph_monc_wait_osdmap(struct ceph_mon_client *monc, u32 epoch, extern int ceph_monc_do_statfs(struct ceph_mon_client *monc, struct ceph_statfs *buf); -extern int ceph_monc_do_get_version(struct ceph_mon_client *monc, - const char *what, u64 *newest); +int ceph_monc_get_version(struct ceph_mon_client *monc, const char *what, + u64 *newest); +int ceph_monc_get_version_async(struct ceph_mon_client *monc, const char *what, + ceph_monc_callback_t cb, u64 private_data); extern int ceph_monc_open_session(struct ceph_mon_client *monc); |