linux-kernel - [PATCH] [PATCH] btrfs: remove unused wariable 'num

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Date:   Tue, 22 Jan 2019 22:59:43 +0000
From:   Matthew Friday <lkmfriday@...il.com>
To:     dsterba@...e.com
Cc:     lkmfriday@...il.com, Chris Mason <clm@...com>,
        Josef Bacik <josef@...icpanda.com>,
        linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] [PATCH] btrfs: remove unused wariable 'num_pages'

Signed-off-by: Matthew Friday <lkmfriday@...il.com>
---
 fs/btrfs/ioctl.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 9c8e1734429c..6243f734c0cd 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3278,7 +3278,6 @@ static int btrfs_extent_same(struct inode *src, u64 loff, u64 olen,
 			     struct inode *dst, u64 dst_loff)
 {
 	int ret;
-	int num_pages = PAGE_ALIGN(BTRFS_MAX_DEDUPE_LEN) >> PAGE_SHIFT;
 	u64 i, tail_len, chunk_count;
 
 	/* don't make the dst file partly checksummed */
@@ -3291,8 +3290,6 @@ static int btrfs_extent_same(struct inode *src, u64 loff, u64 olen,
 
 	tail_len = olen % BTRFS_MAX_DEDUPE_LEN;
 	chunk_count = div_u64(olen, BTRFS_MAX_DEDUPE_LEN);
-	if (chunk_count == 0)
-		num_pages = PAGE_ALIGN(tail_len) >> PAGE_SHIFT;
 
 	for (i = 0; i < chunk_count; i++) {
 		ret = btrfs_extent_same_range(src, loff, BTRFS_MAX_DEDUPE_LEN,
-- 
2.11.0