[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <1275408795-17487-5-git-send-email-tytso@mit.edu>
Date: Tue, 1 Jun 2010 12:12:52 -0400
From: Theodore Ts'o <tytso@....edu>
To: stable@...r.kernel.org
Cc: Ext4 Developers List <linux-ext4@...r.kernel.org>,
Christian Borntraeger <borntraeger@...ibm.com>,
"Theodore Ts'o" <tytso@....edu>,
Akira Fujita <a-fujita@...jp.nec.com>
Subject: [PATCH v2.6.34.y 05/28] ext4: allow defrag (EXT4_IOC_MOVE_EXT) in 32bit compat mode
From: Christian Borntraeger <borntraeger@...ibm.com>
commit b684b2ee9409f2890a8b3aea98525bbe5f84e276 upstream (as of v2.6.34-git13)
I have an x86_64 kernel with i386 userspace. e4defrag fails on the
EXT4_IOC_MOVE_EXT ioctl because it is not wired up for the compat
case. It seems that struct move_extent is compat save, only types
with fixed widths are used:
{
__u32 reserved; /* should be zero */
__u32 donor_fd; /* donor file descriptor */
__u64 orig_start; /* logical start offset in block for orig */
__u64 donor_start; /* logical start offset in block for donor */
__u64 len; /* block length to be moved */
__u64 moved_len; /* moved block length */
};
Lets just wire up EXT4_IOC_MOVE_EXT for the compat case.
Signed-off-by: Christian Borntraeger <borntraeger@...ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@....edu>
Reviewed-by: Eric Sandeen <sandeen@...hat.com>
CC: Akira Fujita <a-fujita@...jp.nec.com>
---
fs/ext4/ioctl.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 016d024..66fa0b0 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -375,6 +375,8 @@ long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
break;
case EXT4_IOC_GROUP_ADD:
break;
+ case EXT4_IOC_MOVE_EXT:
+ break;
default:
return -ENOIOCTLCMD;
}
--
1.6.6.1.1.g974db.dirty
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists