[PATCH 4/9] btrfs: remove unnecessary pg_offset assignments in __extent_writepage()

From: Omar Sandoval <osandov@osandov.com>
To: linux-btrfs@vger.kernel.org
Cc: kernel-team@fb.com
Subject: [PATCH 4/9] btrfs: remove unnecessary pg_offset assignments in __extent_writepage()
Date: Mon,  2 Dec 2019 17:34:20 -0800	[thread overview]
Message-ID: <07b6177024a181dfd87c1c2e56a04d07152549fe.1575336816.git.osandov@fb.com> (raw)
In-Reply-To: <cover.1575336815.git.osandov@fb.com>

From: Omar Sandoval <osandov@fb.com>

We're initializing pg_offset to 0, setting it immediately, then
reassigning it to 0 again after. The former became unnecessary in
211c17f51f46 ("Fix corners in writepage and btrfs_truncate_page"). The
latter is a leftover that should've been removed in 40f765805f08
("Btrfs: split up __extent_writepage to lower stack usage"). Remove
both.

Signed-off-by: Omar Sandoval <osandov@fb.com>
---
 fs/btrfs/extent_io.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index eb8bd0258360..dad6b06d0a8e 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -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) {
-- 
2.24.0

