diff options
| author | Yan, Zheng <zyan@redhat.com> | 2016-02-14 04:24:31 +0100 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2016-07-28 02:55:37 +0200 |
| commit | 30c156d9951e0aa88202707d80c583b0a09d3167 (patch) | |
| tree | afda9d55374a9b078a5ddd8d5a8c1f2a847eccd5 /include | |
| parent | libceph: introduce reference counted string (diff) | |
| download | linux-30c156d9951e0aa88202707d80c583b0a09d3167.tar.xz linux-30c156d9951e0aa88202707d80c583b0a09d3167.zip | |
libceph: rados pool namespace support
Add pool namesapce pointer to struct ceph_file_layout and struct
ceph_object_locator. Pool namespace is used by when mapping object
to PG, it's also used when composing OSD request.
The namespace pointer in struct ceph_file_layout is RCU protected.
So libceph can read namespace without taking lock.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
[idryomov@gmail.com: ceph_oloc_destroy(), misc minor changes]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ceph/ceph_fs.h | 2 | ||||
| -rw-r--r-- | include/linux/ceph/osdmap.h | 10 |
2 files changed, 7 insertions, 5 deletions
diff --git a/include/linux/ceph/ceph_fs.h b/include/linux/ceph/ceph_fs.h index e5a5fb9ca3f5..08b8fd72261e 100644 --- a/include/linux/ceph/ceph_fs.h +++ b/include/linux/ceph/ceph_fs.h @@ -53,6 +53,7 @@ struct ceph_file_layout_legacy { __le32 fl_pg_pool; /* namespace, crush ruleset, rep level */ } __attribute__ ((packed)); +struct ceph_string; /* * ceph_file_layout - describe data layout for a file/inode */ @@ -62,6 +63,7 @@ struct ceph_file_layout { u32 stripe_count; /* over this many objects */ u32 object_size; /* until objects are this big */ s64 pool_id; /* rados pool id */ + struct ceph_string __rcu *pool_ns; /* rados pool namespace */ }; extern int ceph_file_layout_is_valid(const struct ceph_file_layout *layout); diff --git a/include/linux/ceph/osdmap.h b/include/linux/ceph/osdmap.h index 21d7f048959f..9a9041784dcf 100644 --- a/include/linux/ceph/osdmap.h +++ b/include/linux/ceph/osdmap.h @@ -63,11 +63,13 @@ static inline bool ceph_can_shift_osds(struct ceph_pg_pool_info *pool) struct ceph_object_locator { s64 pool; + struct ceph_string *pool_ns; }; static inline void ceph_oloc_init(struct ceph_object_locator *oloc) { oloc->pool = -1; + oloc->pool_ns = NULL; } static inline bool ceph_oloc_empty(const struct ceph_object_locator *oloc) @@ -75,11 +77,9 @@ static inline bool ceph_oloc_empty(const struct ceph_object_locator *oloc) return oloc->pool == -1; } -static inline void ceph_oloc_copy(struct ceph_object_locator *dest, - const struct ceph_object_locator *src) -{ - dest->pool = src->pool; -} +void ceph_oloc_copy(struct ceph_object_locator *dest, + const struct ceph_object_locator *src); +void ceph_oloc_destroy(struct ceph_object_locator *oloc); /* * Maximum supported by kernel client object name length |