btrfs: remove shadowing variables in __btrfs_buffered_write

There are lockstart and lockend defined in the function and not used
after their duplicate definition scope ends, it's safe to reuse them.

Signed-off-by: David Sterba <dsterba@suse.cz>
(cherry picked from commit f64c7b12f86c638f13e19de08eeb8cf888dff8f6)

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 1b4054ec6071b156c249addaa16f6dbd53b97573..0193268447353779586f3e83fbd664f24848286f 100644 (file)
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1635,8 +1635,8 @@ again:
                        btrfs_end_nocow_write(root);
 
                if (only_release_metadata && copied > 0) {
-                       u64 lockstart = round_down(pos, root->sectorsize);
-                       u64 lockend = lockstart +
+                       lockstart = round_down(pos, root->sectorsize);
+                       lockend = lockstart +
                                (dirty_pages << PAGE_CACHE_SHIFT) - 1;
 
                        set_extent_bit(&BTRFS_I(inode)->io_tree, lockstart,