Date: Sat, 16 Jun 2012 21:39:00 +0000 (UTC) From: Attilio Rao <attilio@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r237172 - head/sys/vm Message-ID: <201206162139.q5GLd0Ck067245@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: attilio Date: Sat Jun 16 21:39:00 2012 New Revision: 237172 URL: http://svn.freebsd.org/changeset/base/237172 Log: Do a more targeted check on the page cache and avoid to check the cache pointer directly in vnode_pager_setsize() by using newly introduced vm_page_is_cached() function. Reviewed by: alc MFC after: 2 weeks X-MFC: r234039,234064 Modified: head/sys/vm/vnode_pager.c Modified: head/sys/vm/vnode_pager.c ============================================================================== --- head/sys/vm/vnode_pager.c Sat Jun 16 21:37:15 2012 (r237171) +++ head/sys/vm/vnode_pager.c Sat Jun 16 21:39:00 2012 (r237172) @@ -440,7 +440,7 @@ vnode_pager_setsize(vp, nsize) */ vm_page_clear_dirty(m, base, PAGE_SIZE - base); } else if ((nsize & PAGE_MASK) && - __predict_false(object->cache != NULL)) { + vm_page_is_cached(object, OFF_TO_IDX(nsize))) { vm_page_cache_free(object, OFF_TO_IDX(nsize), nobjsize); }
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201206162139.q5GLd0Ck067245>