From: Greg Thelen 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 Reviewed-by: Minchan Kim Signed-off-by: Fengguang Wu --- fs/nfs/write.c | 4 ++++ mm/filemap.c | 1 + mm/page-writeback.c | 4 ++++ mm/truncate.c | 1 + 4 files changed, 10 insertions(+) --- linux.orig/fs/nfs/write.c 2012-02-19 10:53:14.000000000 +0800 +++ linux/fs/nfs/write.c 2012-02-19 10:53:21.000000000 +0800 @@ -449,6 +449,7 @@ nfs_mark_request_commit(struct nfs_page nfsi->ncommit++; spin_unlock(&inode->i_lock); pnfs_mark_request_commit(req, lseg); + 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); @@ -460,6 +461,7 @@ nfs_clear_request_commit(struct nfs_page 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; @@ -1408,6 +1410,8 @@ void nfs_retry_commit(struct list_head * req = nfs_list_entry(page_list->next); nfs_list_remove_request(req); nfs_mark_request_commit(req, lseg); + 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); --- linux.orig/mm/filemap.c 2012-02-19 10:53:14.000000000 +0800 +++ linux/mm/filemap.c 2012-02-19 10:53:21.000000000 +0800 @@ -142,6 +142,7 @@ void __delete_from_page_cache(struct pag * 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); } --- linux.orig/mm/page-writeback.c 2012-02-19 10:53:14.000000000 +0800 +++ linux/mm/page-writeback.c 2012-02-19 10:53:21.000000000 +0800 @@ -1933,6 +1933,7 @@ int __set_page_dirty_no_writeback(struct 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); @@ -1951,6 +1952,7 @@ EXPORT_SYMBOL(account_page_dirtied); */ void account_page_writeback(struct page *page) { + mem_cgroup_inc_page_stat(page, MEMCG_NR_FILE_WRITEBACK); inc_zone_page_state(page, NR_WRITEBACK); } EXPORT_SYMBOL(account_page_writeback); @@ -2152,6 +2154,7 @@ int clear_page_dirty_for_io(struct 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); @@ -2188,6 +2191,7 @@ int test_clear_page_writeback(struct pag ret = TestClearPageWriteback(page); } if (ret) { + mem_cgroup_dec_page_stat(page, MEMCG_NR_FILE_WRITEBACK); dec_zone_page_state(page, NR_WRITEBACK); inc_zone_page_state(page, NR_WRITTEN); } --- linux.orig/mm/truncate.c 2012-02-19 10:53:14.000000000 +0800 +++ linux/mm/truncate.c 2012-02-19 10:53:21.000000000 +0800 @@ -76,6 +76,7 @@ void cancel_dirty_page(struct page *page 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); -- 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/