Date: Wed, 28 May 2014 12:48:24 +0000 (UTC) From: Gleb Smirnoff <glebius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r266801 - projects/sendfile/sys/kern Message-ID: <201405281248.s4SCmOQv047595@svn.freebsd.org>
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Author: glebius Date: Wed May 28 12:48:24 2014 New Revision: 266801 URL: http://svnweb.freebsd.org/changeset/base/266801 Log: When grabbing pages for readahead, bail out if we encounter a valid page. Sponsored by: Netflix Sponsored by: Nginx, Inc. Modified: projects/sendfile/sys/kern/uipc_syscalls.c Modified: projects/sendfile/sys/kern/uipc_syscalls.c ============================================================================== --- projects/sendfile/sys/kern/uipc_syscalls.c Wed May 28 12:45:27 2014 (r266800) +++ projects/sendfile/sys/kern/uipc_syscalls.c Wed May 28 12:48:24 2014 (r266801) @@ -2783,6 +2783,11 @@ sendfile_swapin(vm_object_t obj, struct count = j - i; break; } + if (pa[j]->valid) { + vm_page_xunbusy(pa[j]); + count = j - i; + break; + } } refcount_acquire(&sfio->nios);
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