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authorYan, Zheng <zyan@redhat.com>2017-11-23 18:28:16 +0800
committerIlya Dryomov <idryomov@gmail.com>2018-01-29 18:36:05 +0100
commit87c91a965aa28809888cbae3b2de35a486ed7107 (patch)
tree1ca5e8f54b55f53c4cdbbe19c9e3fd5cce42903f /fs/ceph
parentbe70489eff41a84f26b1d772b595cc043e0edeb6 (diff)
downloadlinux-87c91a965aa28809888cbae3b2de35a486ed7107.tar.bz2
ceph: voluntarily drop Fx cap for readdir request
MDS need to rdlock directory inode's filelock when handling readdir request. Voluntarily dropping CEPH_CAP_AUTH_EXCL avoids a cap revoke message. Signed-off-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph')
-rw-r--r--fs/ceph/dir.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index aa2618f12cb7..9fde02cd5568 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -381,6 +381,7 @@ more:
if (op == CEPH_MDS_OP_READDIR) {
req->r_direct_hash = ceph_frag_value(frag);
__set_bit(CEPH_MDS_R_DIRECT_IS_HASH, &req->r_req_flags);
+ req->r_inode_drop = CEPH_CAP_FILE_EXCL;
}
if (fi->last_name) {
req->r_path2 = kstrdup(fi->last_name, GFP_KERNEL);