diff options
| author | Yan, Zheng <zyan@redhat.com> | 2017-11-23 17:59:13 +0800 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2018-01-29 18:36:04 +0100 |
| commit | d19a0b540182a742338d88f6501e4f29a30d7541 (patch) | |
| tree | f0f5357777c4bc0bdab32701e891000522a610c6 | |
| parent | 222b7f90ba3825728fd27e9105aeee7af9576819 (diff) | |
ceph: voluntarily drop Lx cap for link/rename requests
MDS need to xlock inode's linklock when handling link/rename 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>
| -rw-r--r-- | fs/ceph/dir.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index 3a60d113aa4e..aa2618f12cb7 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -983,7 +983,7 @@ static int ceph_link(struct dentry *old_dentry, struct inode *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; + req->r_old_inode_drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL; err = ceph_mdsc_do_request(mdsc, dir, req); if (err) { d_drop(dentry); @@ -1096,7 +1096,7 @@ static int ceph_rename(struct inode *old_dir, struct dentry *old_dentry, req->r_dentry_drop = CEPH_CAP_FILE_SHARED; req->r_dentry_unless = CEPH_CAP_FILE_EXCL; /* release LINK_RDCACHE on source inode (mds will lock it) */ - req->r_old_inode_drop = CEPH_CAP_LINK_SHARED; + req->r_old_inode_drop = CEPH_CAP_LINK_SHARED | CEPH_CAP_LINK_EXCL; if (d_really_is_positive(new_dentry)) req->r_inode_drop = drop_caps_for_unlink(d_inode(new_dentry)); err = ceph_mdsc_do_request(mdsc, old_dir, req); |