Date: Wed, 19 Mar 2014 13:04:16 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r263359 - stable/10/sys/vm Message-ID: <201403191304.s2JD4Gi5041151@svn.freebsd.org>
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Author: kib Date: Wed Mar 19 13:04:16 2014 New Revision: 263359 URL: http://svnweb.freebsd.org/changeset/base/263359 Log: MFC r263092: Do not vdrop() the tmpfs vnode until it is unlocked. The hold reference might be the last, and then vdrop() would free the vnode. Modified: stable/10/sys/vm/vm_object.c Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/vm/vm_object.c ============================================================================== --- stable/10/sys/vm/vm_object.c Wed Mar 19 13:02:26 2014 (r263358) +++ stable/10/sys/vm/vm_object.c Wed Mar 19 13:04:16 2014 (r263359) @@ -536,17 +536,18 @@ vm_object_deallocate(vm_object_t object) vhold(vp); VM_OBJECT_WUNLOCK(object); vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); - vdrop(vp); VM_OBJECT_WLOCK(object); if (object->type == OBJT_DEAD || object->ref_count != 1) { VM_OBJECT_WUNLOCK(object); VOP_UNLOCK(vp, 0); + vdrop(vp); return; } if ((object->flags & OBJ_TMPFS) != 0) VOP_UNSET_TEXT(vp); VOP_UNLOCK(vp, 0); + vdrop(vp); } if (object->shadow_count == 0 && object->handle == NULL &&
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