On Tue, 2014-06-17 at 13:43 +0100, Pawel Moll wrote: > When running a 32-bit userspace on a 64-bit kernel (eg. i386 > application on x86_64 kernel or 32-bit arm userspace on arm64 > kernel) some of the perf ioctls must be treated with special > care, as they have a pointer size encoded in the command. > > For example, PERF_EVENT_IOC_ID in 32-bit world will be encoded > as 0x80042407, but 64-bit kernel will expect 0x80082407. In > result the ioctl will fail returning -ENOTTY. > > This patch solves the problem by adding code fixing up the > size as compat_ioctl file operation. > > Reported-by: Drew Richardson <[email protected]> > Signed-off-by: Pawel Moll <[email protected]>
This just is a polite and friendly nag... Any, strong or not, opinions on the matter? Cheers! Pawel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
