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| author |   Theodore Ts'o <tytso@mit.edu> | 2010-10-27 21:30:10 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2010-10-27 21:30:10 -0400 |
| commit | 3ecdb3a193a5f224f084c04a63aa28cdccf4d7d0 (patch) | |
| tree | 9949f753917004c75ddd4549c8e9741ccdbd435e /fs/ext4 | |
| parent | ext4: inline ext4_writepage() into mpage_da_submit_io() (diff) | |
| download | linux-dev-3ecdb3a193a5f224f084c04a63aa28cdccf4d7d0.tar.xz linux-dev-3ecdb3a193a5f224f084c04a63aa28cdccf4d7d0.zip | |
ext4: inline walk_page_buffers() into mpage_da_submit_io
Expand the call:
if (walk_page_buffers(NULL, page_bufs, 0, len, NULL,
ext4_bh_delay_or_unwritten))
goto redirty_page
into mpage_da_submit_io().
This will allow us to merge in mpage_put_bnr_to_bhs() in the next
patch.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/inode.c | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 97a0c35219ae..5da6cfcecd83 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2011,8 +2011,8 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd) struct inode *inode = mpd->inode; struct address_space *mapping = inode->i_mapping; loff_t size = i_size_read(inode); - unsigned int len; - struct buffer_head *page_bufs = NULL; + unsigned int len, block_start; + struct buffer_head *bh, *page_bufs = NULL; int journal_data = ext4_should_journal_data(inode); BUG_ON(mpd->next_page <= mpd->first_page); @@ -2064,15 +2064,17 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd) } commit_write = 1; } - page_bufs = page_buffers(page); - if (walk_page_buffers(NULL, page_bufs, 0, len, NULL, - ext4_bh_delay_or_unwritten)) { - /* - * We couldn't do block allocation for - * some reason. - */ - goto redirty_page; - } + + bh = page_bufs = page_buffers(page); + block_start = 0; + do { + /* redirty page if block allocation undone */ + if (!bh || buffer_delay(bh) || + buffer_unwritten(bh)) + goto redirty_page; + bh = bh->b_this_page; + block_start += bh->b_size; + } while ((bh != page_bufs) && (block_start < len)); if (commit_write) /* mark the buffer_heads as dirty & uptodate */ |