From 30c156d9951e0aa88202707d80c583b0a09d3167 Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Sun, 14 Feb 2016 11:24:31 +0800 Subject: 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 [idryomov@gmail.com: ceph_oloc_destroy(), misc minor changes] Signed-off-by: Ilya Dryomov --- fs/ceph/inode.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'fs/ceph') 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); } -- cgit v1.2.3-59-g8ed1b