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Date: Sun, 30 May 2010 22:49:47 -0400 From: Theodore Ts'o <tytso@....edu> To: stable@...nel.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 v2.6.32.y 34/53] 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
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