Author: mav
Date: Thu Oct 8 07:34:30 2015
New Revision: 289017
URL: https://svnweb.freebsd.org/changeset/base/289017
Log:
Add missing vnode lock in case of file modify request.
Submitted by: Richard Kojedzinszky
MFC after: 1 week
Modified:
head/sys/cam/ctl/ctl_backend_block.c
Modified: head/sys/cam/ctl/ctl_backend_block.c
==============================================================================
--- head/sys/cam/ctl/ctl_backend_block.c Thu Oct 8 07:31:05 2015
(r289016)
+++ head/sys/cam/ctl/ctl_backend_block.c Thu Oct 8 07:34:30 2015
(r289017)
@@ -2623,9 +2623,11 @@ ctl_be_block_modify(struct ctl_be_block_
error = ctl_be_block_open(be_lun, req);
else if (vn_isdisk(be_lun->vn, &error))
error = ctl_be_block_open_dev(be_lun, req);
- else if (be_lun->vn->v_type == VREG)
+ else if (be_lun->vn->v_type == VREG) {
+ vn_lock(be_lun->vn, LK_SHARED | LK_RETRY);
error = ctl_be_block_open_file(be_lun, req);
- else
+ VOP_UNLOCK(be_lun->vn, 0);
+ } else
error = EINVAL;
if ((cbe_lun->flags & CTL_LUN_FLAG_NO_MEDIA) &&
be_lun->vn != NULL) {
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