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ceph: call update_dentry_lease even when r_locked dir is not set 

We don't really require that the parent be locked in order to update the
lease on a dentry. Lease info is protected by the d_lock. In the event
that the parent is not locked in ceph_fill_trace, and we have both
parent and target info, go ahead and update the dentry lease.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Yan, Zheng <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Jeff Layton 2017-01-27 13:07:10 -05:00 committed by Ilya Dryomov
parent f5d55f0397
commit cdde7c4351
1 changed files with 20 additions and 0 deletions
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20
fs/ceph/inode.c
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@ -1360,6 +1360,26 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req)
goto done;
}
req->r_dentry = dn; /* may have spliced */
} else if (rinfo->head->is_dentry) {
struct ceph_vino *ptvino = NULL;
if ((le32_to_cpu(rinfo->diri.in->cap.caps) & CEPH_CAP_FILE_SHARED) ||
le32_to_cpu(rinfo->dlease->duration_ms)) {
dvino.ino = le64_to_cpu(rinfo->diri.in->ino);
dvino.snap = le64_to_cpu(rinfo->diri.in->snapid);
if (rinfo->head->is_target) {
tvino.ino = le64_to_cpu(rinfo->targeti.in->ino);
tvino.snap = le64_to_cpu(rinfo->targeti.in->snapid);
ptvino = &tvino;
}
update_dentry_lease(req->r_dentry, rinfo->dlease,
session, req->r_request_started, ptvino,
&dvino);
} else {
dout("%s: no dentry lease or dir cap\n", __func__);
}
}
done:
dout("fill_trace done err=%d\n", err);