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authorYan, Zheng <zyan@redhat.com>2017-11-23 17:47:15 +0800
committerIlya Dryomov <idryomov@gmail.com>2018-01-29 18:36:04 +0100
commit222b7f90ba3825728fd27e9105aeee7af9576819 (patch)
tree8cbfe764c0bfd8bbdbcf399d75c4c24aac9d4b89 /fs/ceph/dir.c
parente573427a440fd67d3f522357d7ac901d59281948 (diff)
ceph: voluntarily drop Ax cap for requests that create new inode
MDS need to rdlock directory inode's authlock when handling these requests. 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/dir.c')
-rw-r--r--fs/ceph/dir.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 8a5266699b67..3a60d113aa4e 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -835,7 +835,7 @@ static int ceph_mknod(struct inode *dir, struct dentry *dentry,
set_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags);
req->r_args.mknod.mode = cpu_to_le32(mode);
req->r_args.mknod.rdev = cpu_to_le32(rdev);
- req->r_dentry_drop = CEPH_CAP_FILE_SHARED;
+ req->r_dentry_drop = CEPH_CAP_FILE_SHARED | CEPH_CAP_AUTH_EXCL;
req->r_dentry_unless = CEPH_CAP_FILE_EXCL;
if (acls.pagelist) {
req->r_pagelist = acls.pagelist;
@@ -887,7 +887,7 @@ static int ceph_symlink(struct inode *dir, struct dentry *dentry,
set_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags);
req->r_dentry = dget(dentry);
req->r_num_caps = 2;
- req->r_dentry_drop = CEPH_CAP_FILE_SHARED;
+ req->r_dentry_drop = CEPH_CAP_FILE_SHARED | CEPH_CAP_AUTH_EXCL;
req->r_dentry_unless = CEPH_CAP_FILE_EXCL;
err = ceph_mdsc_do_request(mdsc, dir, req);
if (!err && !req->r_reply_info.head->is_dentry)
@@ -936,7 +936,7 @@ static int ceph_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
req->r_parent = dir;
set_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags);
req->r_args.mkdir.mode = cpu_to_le32(mode);
- req->r_dentry_drop = CEPH_CAP_FILE_SHARED;
+ req->r_dentry_drop = CEPH_CAP_FILE_SHARED | CEPH_CAP_AUTH_EXCL;
req->r_dentry_unless = CEPH_CAP_FILE_EXCL;
if (acls.pagelist) {
req->r_pagelist = acls.pagelist;