[PATCH v2 6/8] ext4: Count data request of write operations in buffered io
From: Zheng Liu <hidden>
Date: 2011-11-10 10:34:52
Also in:
linux-fsdevel
Subsystem:
ext4 file system, filesystems (vfs and infrastructure), the rest · Maintainers:
"Theodore Ts'o", Alexander Viro, Christian Brauner, Linus Torvalds
From: Zheng Liu <redacted> 'Issue' flag in buffer_head doesn't be used. Signed-off-by: Zheng Liu <redacted> Signed-off-by: Wang Shaoyan <redacted> --- fs/ext4/inode.c | 8 +++++++- 1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index c584f89..e552fb2 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c@@ -1907,6 +1907,8 @@ static int ext4_writepage(struct page *page, struct inode *inode = page->mapping->host; trace_ext4_writepage(page); + __ext4_io_stat(WRITE, 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;
@@ -2081,6 +2083,8 @@ static int write_cache_pages_da(struct address_space *mapping, logical = (sector_t) page->index << (PAGE_CACHE_SHIFT - inode->i_blkbits); + __ext4_io_stat(WRITE, EXT4_IOS_REGULAR_DATA, + ext4_blocks_per_page(inode)); if (!page_has_buffers(page)) { mpage_add_bh_to_extent(mpd, logical, PAGE_CACHE_SIZE,
@@ -3454,8 +3458,10 @@ 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_one(handle, bh, EXT4_IOS_REGULAR_DATA); mark_buffer_dirty(bh); + } unlock: unlock_page(page);
--
1.7.4.1