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authorChristian Borntraeger <borntraeger@de.ibm.com>2010-05-15 00:00:00 -0400
committerTheodore Ts'o <tytso@mit.edu>2010-05-15 00:00:00 -0400
commitb684b2ee9409f2890a8b3aea98525bbe5f84e276 (patch)
tree7b8e2776e542bf0a695b38c2aa09a0b9bbd32c20 /fs/ext4/ioctl.c
parente39e07fdfd98be8650385f12a7b81d6adc547510 (diff)
ext4: allow defrag (EXT4_IOC_MOVE_EXT) in 32bit compat mode
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@de.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reviewed-by: Eric Sandeen <sandeen@redhat.com> CC: Akira Fujita <a-fujita@rs.jp.nec.com>
Diffstat (limited to 'fs/ext4/ioctl.c')
-rw-r--r--fs/ext4/ioctl.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 016d0249294..66fa0b030e3 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;
}