From: Curt Wohlgemuth <curtw@google.com>
Date: Mon, 20 Feb 2012 22:53:03 +0000 (-0500)
Subject: ext4: mark possibly unused variable in ext4_mb_normalize_request()
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=1592d2c5574edadb0871cc4ac84265bdd18b2d68;p=~shefty%2Frdma-dev.git

ext4: mark possibly unused variable in ext4_mb_normalize_request()

The 'orig_size' local variable is only used in a call to
mb_debug().  Mark it with '__maybe_unused'.

Signed-off-by: Curt Wohlgemuth <curtw@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 2e467718d41..8e01214a442 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2858,7 +2858,8 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
 	struct ext4_sb_info *sbi = EXT4_SB(ac->ac_sb);
 	int bsbits, max;
 	ext4_lblk_t end;
-	loff_t size, orig_size, start_off;
+	loff_t size, start_off;
+	loff_t orig_size __maybe_unused;
 	ext4_lblk_t start;
 	struct ext4_inode_info *ei = EXT4_I(ac->ac_inode);
 	struct ext4_prealloc_space *pa;