From 9215aeea622fec7ca8123c6bd6f03a1753e2b0b3 Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Sat, 30 Nov 2013 12:47:41 +0800 Subject: ceph: check inode caps in ceph_d_revalidate Some inodes in readdir reply may have no caps. Getattr mds request for these inodes can return -ESTALE. The fix is consider dentry that links to inode with no caps as invalid. Invalid dentry causes a lookup request to send to the mds, the MDS will send caps back. Signed-off-by: Yan, Zheng --- fs/ceph/caps.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'fs/ceph/caps.c') diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index d2154d63f671..d65ff334901c 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -891,6 +891,18 @@ static int __ceph_is_any_caps(struct ceph_inode_info *ci) return !RB_EMPTY_ROOT(&ci->i_caps) || ci->i_cap_exporting_mds >= 0; } +int ceph_is_any_caps(struct inode *inode) +{ + struct ceph_inode_info *ci = ceph_inode(inode); + int ret; + + spin_lock(&ci->i_ceph_lock); + ret = __ceph_is_any_caps(ci); + spin_unlock(&ci->i_ceph_lock); + + return ret; +} + /* * Remove a cap. Take steps to deal with a racing iterate_session_caps. * -- cgit 1.4.1