Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753522Ab1CKSqZ (ORCPT ); Fri, 11 Mar 2011 13:46:25 -0500 Received: from smtp-out.google.com ([216.239.44.51]:60835 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752519Ab1CKSqV (ORCPT ); Fri, 11 Mar 2011 13:46:21 -0500 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; b=Ewbvk/qxZTfjBEGwB6sKeNMTqhp3qLhBMoI1s69wdSg5iEx9H83zRnY6JLqQCti8V RcshA/6JdABak0WIyt9gw== From: Greg Thelen To: Andrew Morton Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, containers@lists.osdl.org, linux-fsdevel@vger.kernel.org, Andrea Righi , Balbir Singh , KAMEZAWA Hiroyuki , Daisuke Nishimura , Minchan Kim , Johannes Weiner , Ciju Rajan K , David Rientjes , Wu Fengguang , Chad Talbott , Justin TerAvest , Vivek Goyal , Greg Thelen Subject: [PATCH v6 4/9] memcg: add kernel calls for memcg dirty page stats Date: Fri, 11 Mar 2011 10:43:26 -0800 Message-Id: <1299869011-26152-5-git-send-email-gthelen@google.com> X-Mailer: git-send-email 1.7.3.1 In-Reply-To: <1299869011-26152-1-git-send-email-gthelen@google.com> References: <1299869011-26152-1-git-send-email-gthelen@google.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4637 Lines: 125 Add calls into memcg dirty page accounting. Notify memcg when pages transition between clean, file dirty, writeback, and unstable nfs. This allows the memory controller to maintain an accurate view of the amount of its memory that is dirty. Signed-off-by: Greg Thelen Signed-off-by: Andrea Righi Acked-by: KAMEZAWA Hiroyuki Reviewed-by: Daisuke Nishimura --- Changelog since v5: - moved accounting site in test_clear_page_writeback() and test_set_page_writeback(). fs/nfs/write.c | 4 ++++ mm/filemap.c | 1 + mm/page-writeback.c | 10 ++++++++-- mm/truncate.c | 1 + 4 files changed, 14 insertions(+), 2 deletions(-) diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 42b92d7..7863777 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -451,6 +451,7 @@ nfs_mark_request_commit(struct nfs_page *req) NFS_PAGE_TAG_COMMIT); nfsi->ncommit++; spin_unlock(&inode->i_lock); + mem_cgroup_inc_page_stat(req->wb_page, MEMCG_NR_FILE_UNSTABLE_NFS); inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS); inc_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_RECLAIMABLE); __mark_inode_dirty(inode, I_DIRTY_DATASYNC); @@ -462,6 +463,7 @@ nfs_clear_request_commit(struct nfs_page *req) struct page *page = req->wb_page; if (test_and_clear_bit(PG_CLEAN, &(req)->wb_flags)) { + mem_cgroup_dec_page_stat(page, MEMCG_NR_FILE_UNSTABLE_NFS); dec_zone_page_state(page, NR_UNSTABLE_NFS); dec_bdi_stat(page->mapping->backing_dev_info, BDI_RECLAIMABLE); return 1; @@ -1319,6 +1321,8 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how) req = nfs_list_entry(head->next); nfs_list_remove_request(req); nfs_mark_request_commit(req); + mem_cgroup_dec_page_stat(req->wb_page, + MEMCG_NR_FILE_UNSTABLE_NFS); dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS); dec_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_RECLAIMABLE); diff --git a/mm/filemap.c b/mm/filemap.c index a6cfecf..7e751fe 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -143,6 +143,7 @@ void __delete_from_page_cache(struct page *page) * having removed the page entirely. */ if (PageDirty(page) && mapping_cap_account_dirty(mapping)) { + mem_cgroup_dec_page_stat(page, MEMCG_NR_FILE_DIRTY); dec_zone_page_state(page, NR_FILE_DIRTY); dec_bdi_stat(mapping->backing_dev_info, BDI_RECLAIMABLE); } diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 632b464..d8005b0 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -1118,6 +1118,7 @@ int __set_page_dirty_no_writeback(struct page *page) void account_page_dirtied(struct page *page, struct address_space *mapping) { if (mapping_cap_account_dirty(mapping)) { + mem_cgroup_inc_page_stat(page, MEMCG_NR_FILE_DIRTY); __inc_zone_page_state(page, NR_FILE_DIRTY); __inc_zone_page_state(page, NR_DIRTIED); __inc_bdi_stat(mapping->backing_dev_info, BDI_RECLAIMABLE); @@ -1317,6 +1318,7 @@ int clear_page_dirty_for_io(struct page *page) * for more comments. */ if (TestClearPageDirty(page)) { + mem_cgroup_dec_page_stat(page, MEMCG_NR_FILE_DIRTY); dec_zone_page_state(page, NR_FILE_DIRTY); dec_bdi_stat(mapping->backing_dev_info, BDI_RECLAIMABLE); @@ -1352,8 +1354,10 @@ int test_clear_page_writeback(struct page *page) } else { ret = TestClearPageWriteback(page); } - if (ret) + if (ret) { + mem_cgroup_dec_page_stat(page, MEMCG_NR_FILE_WRITEBACK); dec_zone_page_state(page, NR_WRITEBACK); + } return ret; } @@ -1386,8 +1390,10 @@ int test_set_page_writeback(struct page *page) } else { ret = TestSetPageWriteback(page); } - if (!ret) + if (!ret) { + mem_cgroup_inc_page_stat(page, MEMCG_NR_FILE_WRITEBACK); account_page_writeback(page); + } return ret; } diff --git a/mm/truncate.c b/mm/truncate.c index 5e5a43a..18d0304 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -76,6 +76,7 @@ void cancel_dirty_page(struct page *page, unsigned int account_size) if (TestClearPageDirty(page)) { struct address_space *mapping = page->mapping; if (mapping && mapping_cap_account_dirty(mapping)) { + mem_cgroup_dec_page_stat(page, MEMCG_NR_FILE_DIRTY); dec_zone_page_state(page, NR_FILE_DIRTY); dec_bdi_stat(mapping->backing_dev_info, BDI_RECLAIMABLE); -- 1.7.3.1 -- 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/