Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ad88f23f authored Jul 21, 2013 by Yan, Zheng Committed by Sage Weil Aug 09, 2013

ceph: drop CAP_LINK_SHARED when sending "link" request to MDS



To handle "link" request, the MDS need to xlock inode's linklock,
which requires revoking any CAP_LINK_SHARED.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>

parent c338c07c

fs/ceph/dir.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -796,6 +796,8 @@ static int ceph_link(struct dentry old_dentry, struct inode dir,
		req->r_locked_dir = dir;
		req->r_dentry_drop = CEPH_CAP_FILE_SHARED;
		req->r_dentry_unless = CEPH_CAP_FILE_EXCL;
		/* release LINK_SHARED on source inode (mds will lock it) */
		req->r_old_inode_drop = CEPH_CAP_LINK_SHARED;
		err = ceph_mdsc_do_request(mdsc, dir, req);
		if (err) {
		d_drop(dentry);