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btrfs: Remove extent_page_data argument from writepage_delalloc

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The only remaining use of the 'epd' argument in writepage_delalloc is
to reference the extent_io_tree which was set in extent_writepages. Since
it is guaranteed that page->mapping of any page passed to
writepage_delalloc (and __extent_writepage as the sole caller) to be
equal to that passed in extent_writepages we can directly get the
io_tree via the already passed inode (which is also taken from
page->mapping->host). No functional changes.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2018-11-08 10:18:07 +02:00 committed by David Sterba
parent 7789a55aa1
commit 8cc0237abc
1 changed files with 4 additions and 7 deletions
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11
fs/btrfs/extent_io.c
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@ -3201,12 +3201,10 @@ static void update_nr_written(struct writeback_control *wbc,
* This returns < 0 if there were errors (page still locked)
*/
static noinline_for_stack int writepage_delalloc(struct inode *inode,
struct page *page, struct writeback_control *wbc,
struct extent_page_data *epd,
u64 delalloc_start,
unsigned long *nr_written)
struct page *page, struct writeback_control *wbc,
u64 delalloc_start, unsigned long *nr_written)
{
struct extent_io_tree *tree = epd->tree;
struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree;
u64 page_end = delalloc_start + PAGE_SIZE - 1;
u64 nr_delalloc;
u64 delalloc_to_write = 0;
@ -3470,8 +3468,7 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
set_page_extent_mapped(page);
if (!epd->extent_locked) {
ret = writepage_delalloc(inode, page, wbc, epd, start,
&nr_written);
ret = writepage_delalloc(inode, page, wbc, start, &nr_written);
if (ret == 1)
goto done_unlocked;
if (ret)