Hi, Akira, Akira Fujita wrote: > ext4: Return exchanged blocks count to user space in failure > > From: Akira Fujita <a-fujita@xxxxxxxxxxxxx> > > Return exchanged blocks count (moved_len) to user space, > if ext4_move_extents() failed on the way. Even with the patch, I still don't see how users can fix EXT4_IOC_MOVE_EXT failures, because the orig file itself may be broken. > > Signed-off-by: Akira Fujita <a-fujita@xxxxxxxxxxxxx> > --- > fs/ext4/ioctl.c | 7 +++---- > 1 files changed, 3 insertions(+), 4 deletions(-) > > diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c > index b0b434b..efd11c8 100644 > --- a/fs/ext4/ioctl.c > +++ b/fs/ext4/ioctl.c > @@ -255,10 +255,9 @@ setversion_out: > me.donor_start, me.len, &me.moved_len); > fput(donor_filp); > > - if (!err) > - if (copy_to_user((struct move_extent *)arg, > - &me, sizeof(me))) > - return -EFAULT; > + if (copy_to_user((struct move_extent *)arg, &me, sizeof(me))) > + return -EFAULT; > + > return err; > } > -- > To unsubscribe from this list: send the line "unsubscribe linux-ext4" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Best Regards, Peng Tao State Key Laboratory of Networking and Switching Technology Beijing Univ. of Posts and Telecoms. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
