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btrfs: remove unnecessary pg_offset assignments in __extent_writepage() 

We're initializing pg_offset to 0, setting it immediately, then
reassigning it to 0 again after. The former became unnecessary in
211c17f51f ("Fix corners in writepage and btrfs_truncate_page"). The
latter is a leftover that should've been removed in 40f765805f
("Btrfs: split up __extent_writepage to lower stack usage"). Remove
both.

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Omar Sandoval 2019-12-02 17:34:20 -08:00 committed by David Sterba
parent bffe633e00
commit eb70d22263
1 changed files with 1 additions and 3 deletions
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4
fs/btrfs/extent_io.c
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@ -3562,7 +3562,7 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
u64 page_end = start + PAGE_SIZE - 1;
int ret;
int nr = 0;
size_t pg_offset = 0;
size_t pg_offset;
loff_t i_size = i_size_read(inode);
unsigned long end_index = i_size >> PAGE_SHIFT;
unsigned long nr_written = 0;
@ -3591,8 +3591,6 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
flush_dcache_page(page);
}
pg_offset = 0;
set_page_extent_mapped(page);
if (!epd->extent_locked) {