From 5d37ca1480a70f437e4c425ee5723c760cf6afac Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Wed, 26 Jul 2017 12:48:08 +0800 Subject: ceph: send LSSNAP request to auth mds of directory inode Snapdir inode has no capability. __choose_mds() should choose mds base on capabilities of snapdir's parent inode. Signed-off-by: "Yan, Zheng" Signed-off-by: Ilya Dryomov --- fs/ceph/mds_client.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'fs/ceph/mds_client.c') diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 666a9f274832..86ff74424df4 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -731,9 +731,16 @@ static int __choose_mds(struct ceph_mds_client *mdsc, inode = NULL; if (req->r_inode) { - inode = req->r_inode; - ihold(inode); - } else if (req->r_dentry) { + if (ceph_snap(req->r_inode) != CEPH_SNAPDIR) { + inode = req->r_inode; + ihold(inode); + } else { + /* req->r_dentry is non-null for LSSNAP request. + * fall-thru */ + WARN_ON_ONCE(!req->r_dentry); + } + } + if (!inode && req->r_dentry) { /* ignore race with rename; old or new d_parent is okay */ struct dentry *parent; struct inode *dir; -- cgit v1.2.3