From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762602AbXIKGGS (ORCPT ); Tue, 11 Sep 2007 02:06:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761716AbXIKGEf (ORCPT ); Tue, 11 Sep 2007 02:04:35 -0400 Received: from netops-testserver-4-out.sgi.com ([192.48.171.29]:56446 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1761153AbXIKGEa (ORCPT ); Tue, 11 Sep 2007 02:04:30 -0400 Message-Id: <20070911060426.455185895@sgi.com> References: <20070911060349.993975297@sgi.com> User-Agent: quilt/0.46-1 Date: Mon, 10 Sep 2007 23:03:55 -0700 From: Christoph Lameter To: torvalds@linux-foundation.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Christoph Hellwig , Mel Gorman Cc: William Lee Irwin III , David Chinner Cc: Jens Axboe , Badari Pulavarty Cc: Maxim Levitsky , Fengguang Wu Cc: swin wang , totty.lu@gmail.com, hugh@veritas.com Cc: joern@lazybastard.org Subject: [05/41] Use page_cache_xxx in mm/truncate.c Content-Disposition: inline; filename=0005-Use-page_cache_xxx-in-mm-truncate.c.patch Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Use page_cache_xxx in mm/truncate.c Signed-off-by: Christoph Lameter --- mm/truncate.c | 35 ++++++++++++++++++----------------- 1 files changed, 18 insertions(+), 17 deletions(-) diff --git a/mm/truncate.c b/mm/truncate.c index bf8068d..8c3d32e 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -45,9 +45,10 @@ void do_invalidatepage(struct page *page, unsigned long offset) (*invalidatepage)(page, offset); } -static inline void truncate_partial_page(struct page *page, unsigned partial) +static inline void truncate_partial_page(struct address_space *mapping, + struct page *page, unsigned partial) { - zero_user_segment(page, partial, PAGE_CACHE_SIZE); + zero_user_segment(page, partial, page_cache_size(mapping)); if (PagePrivate(page)) do_invalidatepage(page, partial); } @@ -95,7 +96,7 @@ truncate_complete_page(struct address_space *mapping, struct page *page) if (page->mapping != mapping) return; - cancel_dirty_page(page, PAGE_CACHE_SIZE); + cancel_dirty_page(page, page_cache_size(mapping)); if (PagePrivate(page)) do_invalidatepage(page, 0); @@ -157,9 +158,9 @@ invalidate_complete_page(struct address_space *mapping, struct page *page) void truncate_inode_pages_range(struct address_space *mapping, loff_t lstart, loff_t lend) { - const pgoff_t start = (lstart + PAGE_CACHE_SIZE-1) >> PAGE_CACHE_SHIFT; + const pgoff_t start = page_cache_next(mapping, lstart); pgoff_t end; - const unsigned partial = lstart & (PAGE_CACHE_SIZE - 1); + const unsigned partial = page_cache_offset(mapping, lstart); struct pagevec pvec; pgoff_t next; int i; @@ -167,8 +168,9 @@ void truncate_inode_pages_range(struct address_space *mapping, if (mapping->nrpages == 0) return; - BUG_ON((lend & (PAGE_CACHE_SIZE - 1)) != (PAGE_CACHE_SIZE - 1)); - end = (lend >> PAGE_CACHE_SHIFT); + BUG_ON(page_cache_offset(mapping, lend) != + page_cache_size(mapping) - 1); + end = page_cache_index(mapping, lend); pagevec_init(&pvec, 0); next = start; @@ -194,8 +196,8 @@ void truncate_inode_pages_range(struct address_space *mapping, } if (page_mapped(page)) { unmap_mapping_range(mapping, - (loff_t)page_index<index<index, 0), + page_cache_size(mapping), 0); } if (page->index > next) next = page->index; @@ -421,9 +423,8 @@ int invalidate_inode_pages2_range(struct address_space *mapping, * Zap the rest of the file in one hit. */ unmap_mapping_range(mapping, - (loff_t)page_index<