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ceph: fix mksnap crash

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mksnap reply only contain 'target', does not contain 'dentry'. So
it's wrong to use req->r_reply_info.head->is_dentry to detect traceless
reply.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
This commit is contained in:
Yan, Zheng 2014-12-10 16:17:31 +08:00 committed by Ilya Dryomov
parent 021b77bee2
commit 275dd19ea4
1 changed files with 3 additions and 1 deletions
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4
fs/ceph/dir.c
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@ -812,7 +812,9 @@ static int ceph_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
acls.pagelist = NULL; acls.pagelist = NULL;
} }
err = ceph_mdsc_do_request(mdsc, dir, req); err = ceph_mdsc_do_request(mdsc, dir, req);
if (!err && !req->r_reply_info.head->is_dentry) if (!err &&
!req->r_reply_info.head->is_target &&
!req->r_reply_info.head->is_dentry)
err = ceph_handle_notrace_create(dir, dentry); err = ceph_handle_notrace_create(dir, dentry);
ceph_mdsc_put_request(req); ceph_mdsc_put_request(req);
out: out: