Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-23 04:31:50 +00:00
Code Issues Packages Projects Releases Wiki Activity

ceph: check if LOOKUPNAME request was aborted when filling trace

Browse Source 
d_lookup()/d_alloc() require parent inode locked. Parent inode is
not locked if request is aborted.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Yan, Zheng 2018-09-28 11:34:42 +08:00 committed by Ilya Dryomov
parent c58f450bd6
commit 74c9e6bf4c
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fs/ceph/inode.c
View File

@ -1200,7 +1200,9 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req)
WARN_ON_ONCE(1);
}
if (dir && req->r_op == CEPH_MDS_OP_LOOKUPNAME) {
if (dir && req->r_op == CEPH_MDS_OP_LOOKUPNAME &&
test_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags) &&
!test_bit(CEPH_MDS_R_ABORTED, &req->r_req_flags)) {
struct qstr dname;
struct dentry *dn, *parent;