Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760001Ab2FDMlB (ORCPT ); Mon, 4 Jun 2012 08:41:01 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:63386 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753367Ab2FDMk7 (ORCPT ); Mon, 4 Jun 2012 08:40:59 -0400 From: Wanpeng Li To: Fengguang Wu , Alexander Viro , Jan Kara , Andrew Morton , Mel Gorman , Minchan Kim , "Eric W. Biederman" , David Howells , James Morris , Ingo Molnar Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Wanpeng Li , Wanpeng Li Subject: [PATCH] remove no longer use of pdflush interface Date: Mon, 4 Jun 2012 20:40:42 +0800 Message-Id: <1338813642-6476-1-git-send-email-liwp.linux@gmail.com> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2968 Lines: 97 From: Wanpeng Li remove no longer use of pdflush interface nr_pdflush_threads. Signed-off-by: Wanpeng Li --- Documentation/sysctl/vm.txt | 11 ----------- fs/fs-writeback.c | 5 ----- include/linux/writeback.h | 5 ----- kernel/sysctl.c | 7 ------- 4 files changed, 28 deletions(-) diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index 96f0ee8..71c17d2 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -42,7 +42,6 @@ Currently, these files are in /proc/sys/vm: - mmap_min_addr - nr_hugepages - nr_overcommit_hugepages -- nr_pdflush_threads - nr_trim_pages (only if CONFIG_MMU=n) - numa_zonelist_order - oom_dump_tasks @@ -426,16 +425,6 @@ See Documentation/vm/hugetlbpage.txt ============================================================== -nr_pdflush_threads - -The current number of pdflush threads. This value is read-only. -The value changes according to the number of dirty pages in the system. - -When necessary, additional pdflush threads are created, one per second, up to -nr_pdflush_threads_max. - -============================================================== - nr_trim_pages This is available only on NOMMU kernels. diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 539f36c..30ddb8a 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -52,11 +52,6 @@ struct wb_writeback_work { struct completion *done; /* set if the caller waits */ }; -/* - * We don't actually have pdflush, but this one is exported though /proc... - */ -int nr_pdflush_threads; - /** * writeback_in_progress - determine whether there is writeback in progress * @bdi: the device's backing_dev_info structure. diff --git a/include/linux/writeback.h b/include/linux/writeback.h index a2b84f5..13b5df7 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -193,9 +193,4 @@ void tag_pages_for_writeback(struct address_space *mapping, void account_page_redirty(struct page *page); -/* pdflush.c */ -extern int nr_pdflush_threads; /* Global so it can be exported to sysctl - read-only. */ - - #endif /* WRITEBACK_H */ diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 4ab1187..e257b61 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -1095,13 +1095,6 @@ static struct ctl_table vm_table[] = { .extra1 = &zero, }, { - .procname = "nr_pdflush_threads", - .data = &nr_pdflush_threads, - .maxlen = sizeof nr_pdflush_threads, - .mode = 0444 /* read-only*/, - .proc_handler = proc_dointvec, - }, - { .procname = "swappiness", .data = &vm_swappiness, .maxlen = sizeof(vm_swappiness), -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/