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| author | Ilya Dryomov <idryomov@gmail.com> | 2016-04-28 16:07:22 +0200 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2016-05-26 00:36:25 +0200 |
| commit | 6f3bfd45cd233eea0b07e3cabc0386b5de9321d2 (patch) | |
| tree | cda9593b00d971b10ebeb9279ad1893978236df8 /include/linux/ceph | |
| parent | d9591f5e28686277d9312d3c7422faf1368b305e (diff) | |
| download | lwn-6f3bfd45cd233eea0b07e3cabc0386b5de9321d2.tar.gz lwn-6f3bfd45cd233eea0b07e3cabc0386b5de9321d2.zip | |
libceph: ceph_osds, ceph_pg_to_up_acting_osds()
Knowning just acting set isn't enough, we need to be able to record up
set as well to detect interval changes. This means returning (up[],
up_len, up_primary, acting[], acting_len, acting_primary) and passing
it around. Introduce and switch to ceph_osds to help with that.
Rename ceph_calc_pg_acting() to ceph_pg_to_up_acting_osds() and return
both up and acting sets from it.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'include/linux/ceph')
| -rw-r--r-- | include/linux/ceph/osdmap.h | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/include/linux/ceph/osdmap.h b/include/linux/ceph/osdmap.h index b70440c05b49..942189d311e0 100644 --- a/include/linux/ceph/osdmap.h +++ b/include/linux/ceph/osdmap.h @@ -208,6 +208,20 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end, struct ceph_osdmap *map); extern void ceph_osdmap_destroy(struct ceph_osdmap *map); +struct ceph_osds { + int osds[CEPH_PG_MAX_SIZE]; + int size; + int primary; /* id, NOT index */ +}; + +static inline void ceph_osds_init(struct ceph_osds *set) +{ + set->size = 0; + set->primary = -1; +} + +void ceph_osds_copy(struct ceph_osds *dest, const struct ceph_osds *src); + /* calculate mapping of a file extent to an object */ extern int ceph_calc_file_object_mapping(struct ceph_file_layout *layout, u64 off, u64 len, @@ -218,9 +232,10 @@ int ceph_object_locator_to_pg(struct ceph_osdmap *osdmap, struct ceph_object_locator *oloc, struct ceph_pg *raw_pgid); -extern int ceph_calc_pg_acting(struct ceph_osdmap *osdmap, - struct ceph_pg pgid, - int *osds, int *primary); +void ceph_pg_to_up_acting_osds(struct ceph_osdmap *osdmap, + const struct ceph_pg *raw_pgid, + struct ceph_osds *up, + struct ceph_osds *acting); extern int ceph_calc_pg_primary(struct ceph_osdmap *osdmap, struct ceph_pg pgid); |