From: Lukas Czerner Subject: [PATCH v4 09/20] reiserfs: use ->invalidatepage() length argument Date: Tue, 14 May 2013 18:37:23 +0200 Message-ID: <1368549454-8930-10-git-send-email-lczerner@redhat.com> References: <1368549454-8930-1-git-send-email-lczerner@redhat.com> Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, akpm@linux-foundation.org, hughd@google.com, lczerner@redhat.com, reiserfs-devel@vger.kernel.org To: linux-mm@kvack.org Return-path: In-Reply-To: <1368549454-8930-1-git-send-email-lczerner@redhat.com> Sender: reiserfs-devel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org ->invalidatepage() aop now accepts range to invalidate so we can make use of it in reiserfs_invalidatepage() Signed-off-by: Lukas Czerner Cc: reiserfs-devel@vger.kernel.org --- fs/reiserfs/inode.c | 9 +++++++-- 1 files changed, 7 insertions(+), 2 deletions(-) diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 808e02e..e963164 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -2975,11 +2975,13 @@ static void reiserfs_invalidatepage(struct page *page, unsigned int offset, struct buffer_head *head, *bh, *next; struct inode *inode = page->mapping->host; unsigned int curr_off = 0; + unsigned int stop = offset + length; + int partial_page = (offset || length < PAGE_CACHE_SIZE); int ret = 1; BUG_ON(!PageLocked(page)); - if (offset == 0) + if (!partial_page) ClearPageChecked(page); if (!page_has_buffers(page)) @@ -2991,6 +2993,9 @@ static void reiserfs_invalidatepage(struct page *page, unsigned int offset, unsigned int next_off = curr_off + bh->b_size; next = bh->b_this_page; + if (next_off > stop) + goto out; + /* * is this block fully invalidated? */ @@ -3009,7 +3014,7 @@ static void reiserfs_invalidatepage(struct page *page, unsigned int offset, * The get_block cached value has been unconditionally invalidated, * so real IO is not possible anymore. */ - if (!offset && ret) { + if (!partial_page && ret) { ret = try_to_release_page(page, 0); /* maybe should BUG_ON(!ret); - neilb */ } -- 1.7.7.6