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| author | Christian Borntraeger <borntraeger@de.ibm.com> | 2010-05-15 08:00:00 +0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2010-05-15 08:00:00 +0400 |
| commit | b684b2ee9409f2890a8b3aea98525bbe5f84e276 (patch) | |
| tree | 7b8e2776e542bf0a695b38c2aa09a0b9bbd32c20 /fs/ext4/ioctl.c | |
| parent | e39e07fdfd98be8650385f12a7b81d6adc547510 (diff) | |
| download | linux-b684b2ee9409f2890a8b3aea98525bbe5f84e276.tar.xz | |
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.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index 016d0249294f..66fa0b030e37 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; } |