linux-kernel - [34-longterm 024/260] ext4: Conditionally define compat ioctl numbers

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Message-Id: <1293952756-15010-25-git-send-email-paul.gortmaker@windriver.com>
Date:	Sun,  2 Jan 2011 02:15:20 -0500
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	stable@...nel.org, linux-kernel@...r.kernel.org
Cc:	stable-review@...nel.org, Ben Hutchings <ben@...adent.org.uk>,
	"Theodore Ts'o" <tytso@....edu>,
	Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: [34-longterm 024/260] ext4: Conditionally define compat ioctl numbers

From: Ben Hutchings <ben@...adent.org.uk>

commit 899ad0cea6ad7ff4ba24b16318edbc3cbbe03fad upstream.

It is unnecessary, and in general impossible, to define the compat
ioctl numbers except when building the filesystem with CONFIG_COMPAT
defined.

Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
Signed-off-by: "Theodore Ts'o" <tytso@....edu>
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 fs/ext4/ext4.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 7fe80c5..0419018 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -475,6 +475,7 @@ struct ext4_new_group_data {
 #define EXT4_IOC_ALLOC_DA_BLKS		_IO('f', 12)
 #define EXT4_IOC_MOVE_EXT		_IOWR('f', 15, struct move_extent)
 
+#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
 /*
  * ioctl commands in 32 bit emulation
  */
@@ -490,6 +491,7 @@ struct ext4_new_group_data {
 #endif
 #define EXT4_IOC32_GETVERSION_OLD	FS_IOC32_GETVERSION
 #define EXT4_IOC32_SETVERSION_OLD	FS_IOC32_SETVERSION
+#endif
 
 
 /*
-- 
1.7.3.3

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