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| author |   Yan, Zheng <zyan@redhat.com> | 2016-02-14 11:24:31 +0800 |
|---|---|---|
| committer |   Ilya Dryomov <idryomov@gmail.com> | 2016-07-28 02:55:37 +0200 |
| commit | 30c156d9951e0aa88202707d80c583b0a09d3167 (patch) | |
| tree | afda9d55374a9b078a5ddd8d5a8c1f2a847eccd5 /fs/ceph | |
| parent | libceph: introduce reference counted string (diff) | |
| download | linux-dev-30c156d9951e0aa88202707d80c583b0a09d3167.tar.xz linux-dev-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 'fs/ceph')
| -rw-r--r-- | fs/ceph/inode.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 6c5903e0a976..d035e0ab6029 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -446,6 +446,7 @@ struct inode *ceph_alloc_inode(struct super_block *sb) ci->i_symlink = NULL; memset(&ci->i_dir_layout, 0, sizeof(ci->i_dir_layout)); + RCU_INIT_POINTER(ci->i_layout.pool_ns, NULL); ci->i_pool_ns_len = 0; ci->i_fragtree = RB_ROOT; @@ -570,6 +571,8 @@ void ceph_destroy_inode(struct inode *inode) if (ci->i_xattrs.prealloc_blob) ceph_buffer_put(ci->i_xattrs.prealloc_blob); + ceph_put_string(ci->i_layout.pool_ns); + call_rcu(&inode->i_rcu, ceph_i_callback); } |