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 cf6253b..0794898 100644 (file)
--- 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);