From: David Sterba <dsterba@suse.com>
Date: Tue, 6 Jun 2017 17:50:13 +0000 (+0200)
Subject: btrfs: remove redundant variable in __do_readpage
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8eec8296a086cf9949dc4b91494fc944778ba5a0;p=linux.git

btrfs: remove redundant variable in __do_readpage

The value of page_end is only stored to end, no other use.

Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index cf6253bc5126b..079489892e467 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2886,8 +2886,7 @@ static int __do_readpage(struct extent_io_tree *tree,
 {
 	struct inode *inode = page->mapping->host;
 	u64 start = page_offset(page);
-	u64 page_end = start + PAGE_SIZE - 1;
-	u64 end;
+	const u64 end = start + PAGE_SIZE - 1;
 	u64 cur = start;
 	u64 extent_offset;
 	u64 last_byte = i_size_read(inode);
@@ -2905,7 +2904,6 @@ static int __do_readpage(struct extent_io_tree *tree,
 
 	set_page_extent_mapped(page);
 
-	end = page_end;
 	if (!PageUptodate(page)) {
 		if (cleancache_get_page(page) == 0) {
 			BUG_ON(blocksize != PAGE_SIZE);