Date: Thu, 27 Sep 2012 09:00:22 +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-9@freebsd.org Subject: svn commit: r240989 - stable/9/sys/vm Message-ID: <201209270900.q8R90MJr086434@svn.freebsd.org>
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Author: kib Date: Thu Sep 27 09:00:22 2012 New Revision: 240989 URL: http://svn.freebsd.org/changeset/base/240989 Log: MFC r240741: Plug the accounting leak for the wired pages when msync(MS_INVALIDATE) is performed on the vnode mapping which is wired in other address space. Modified: stable/9/sys/vm/vm_object.c Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/vm/vm_object.c ============================================================================== --- stable/9/sys/vm/vm_object.c Thu Sep 27 08:24:34 2012 (r240988) +++ stable/9/sys/vm/vm_object.c Thu Sep 27 09:00:22 2012 (r240989) @@ -1893,8 +1893,13 @@ again: if ((options & OBJPR_NOTMAPPED) == 0) { pmap_remove_all(p); /* Account for removal of wired mappings. */ - if (wirings != 0) - p->wire_count -= wirings; + if (wirings != 0) { + KASSERT(p->wire_count == wirings, + ("inconsistent wire count %d %d %p", + p->wire_count, wirings, p)); + p->wire_count = 0; + atomic_subtract_int(&cnt.v_wire_count, 1); + } } vm_page_free(p); vm_page_unlock(p);
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