[PATCH] ext4: in ext4_dirty_inode() current_handle only needed for debugging

[Tobias Doerffel <tobias.doerffel@gmail.com>]

As of d3d1faf6a74496ea4435fd057c6a2cad49f3e523 in ext4_dirty_inode()
the current_handle variable is only used for debugging now. Therefore
compiling fs/ext4/inode.c without JBD_DEBUG set will result in a
compiler warning:

fs/ext4/inode.c: In function ‘ext4_dirty_inode’:
fs/ext4/inode.c:5818: warning: unused variable ‘current_handle’

This commit fixes the issue by adding an according #ifdef directive.
---
 fs/ext4/inode.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 26f1a0a..e5daa6c 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5815,7 +5815,9 @@ int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode)
  */
 void ext4_dirty_inode(struct inode *inode)
 {
+#ifdef CONFIG_JBD_DEBUG
 	handle_t *current_handle = ext4_journal_current_handle();
+#endif
 	handle_t *handle;
 
 	handle = ext4_journal_start(inode, 2);
-- 
1.6.3.3

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