From: Qu Wenruo wqu@suse.com
[ Upstream commit cf3075fb36c6a98ea890f4a50b4419ff2fff9a2f ]
In function __extent_writepage() we always pass page start to @delalloc_start for writepage_delalloc().
Thus we don't really need @delalloc_start parameter as we can extract it from @page.
Remove @delalloc_start parameter and make __extent_writepage() to declare @page_start and @page_end as const.
Signed-off-by: Qu Wenruo wqu@suse.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/btrfs/extent_io.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 41862045b3de3..a72a8d4d4a72e 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3780,10 +3780,11 @@ static void update_nr_written(struct writeback_control *wbc, */ static noinline_for_stack int writepage_delalloc(struct btrfs_inode *inode, struct page *page, struct writeback_control *wbc, - u64 delalloc_start, unsigned long *nr_written) + unsigned long *nr_written) { - u64 page_end = delalloc_start + PAGE_SIZE - 1; + u64 page_end = page_offset(page) + PAGE_SIZE - 1; bool found; + u64 delalloc_start = page_offset(page); u64 delalloc_to_write = 0; u64 delalloc_end = 0; int ret; @@ -4068,8 +4069,8 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc, struct extent_page_data *epd) { struct inode *inode = page->mapping->host; - u64 start = page_offset(page); - u64 page_end = start + PAGE_SIZE - 1; + const u64 page_start = page_offset(page); + const u64 page_end = page_start + PAGE_SIZE - 1; int ret; int nr = 0; size_t pg_offset; @@ -4104,8 +4105,7 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc, }
if (!epd->extent_locked) { - ret = writepage_delalloc(BTRFS_I(inode), page, wbc, start, - &nr_written); + ret = writepage_delalloc(BTRFS_I(inode), page, wbc, &nr_written); if (ret == 1) return 0; if (ret) @@ -4155,7 +4155,7 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc, * capable of that. */ if (PageError(page)) - end_extent_writepage(page, ret, start, page_end); + end_extent_writepage(page, ret, page_start, page_end); unlock_page(page); ASSERT(ret <= 0); return ret;