From patchwork Mon Nov 28 12:20:26 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [v3, 6/8] ext4: account the data request of write operations in buffered io From: Zheng Liu X-Patchwork-Id: 127975 Message-Id: <1322482828-5529-6-git-send-email-wenqing.lz@taobao.com> To: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org Cc: Jens Axboe , Steven Whitehouse , Aditya Kali , Wang Shaoyan , Zheng Liu Date: Mon, 28 Nov 2011 20:20:26 +0800 From: Zheng Liu We call ext4_ios_write() function to account the data request of write in buffered io. CC: Jens Axboe CC: Steven Whitehouse CC: Aditya Kali Signed-off-by: Wang Shaoyan Signed-off-by: Zheng Liu --- fs/ext4/inode.c | 10 +++++++++- 1 files changed, 9 insertions(+), 1 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index e5e9acb..3cd862d 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1905,6 +1905,8 @@ static int ext4_writepage(struct page *page, struct inode *inode = page->mapping->host; trace_ext4_writepage(page); + ext4_ios_write(inode->i_sb, NULL, NULL, EXT4_IOS_REGULAR_DATA, + ext4_blocks_per_page(inode)); size = i_size_read(inode); if (page->index == size >> PAGE_CACHE_SHIFT) len = size & ~PAGE_CACHE_MASK; @@ -2079,6 +2081,9 @@ static int write_cache_pages_da(struct address_space *mapping, logical = (sector_t) page->index << (PAGE_CACHE_SHIFT - inode->i_blkbits); + ext4_ios_write(inode->i_sb, NULL, NULL, + EXT4_IOS_REGULAR_DATA, + ext4_blocks_per_page(inode)); if (!page_has_buffers(page)) { mpage_add_bh_to_extent(mpd, logical, PAGE_CACHE_SIZE, @@ -3449,8 +3454,11 @@ int ext4_block_zero_page_range(handle_t *handle, err = 0; if (ext4_should_journal_data(inode)) { err = ext4_handle_dirty_metadata(handle, inode, bh); - } else + } else { + ext4_ios_write(inode->i_sb, handle, bh, + EXT4_IOS_REGULAR_DATA, 1); mark_buffer_dirty(bh); + } unlock: unlock_page(page);