[PATCH v6 14/19] arm64:ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it

On Wed, Dec 02, 2015 at 02:54:18PM +0100, Arnd Bergmann wrote:

On Wednesday 02 December 2015 14:46:32 Arnd Bergmann wrote:

quoted

On Wednesday 02 December 2015 13:35:22 Yury Norov wrote:

quoted

On Wed, Dec 02, 2015 at 09:37:05AM +0100, Arnd Bergmann wrote:

quoted

The 4*PAGE_SIZE on ARM is an architecture specific oddity, I believe
to work around aliasing caches on ARMv6. As no other architecture does
this, we're probably better off not duplicating it for aarch64-ilp32
and just use sys_shmat as your v6 patch does.
      Arnd

If you feel ARMv6 fix for caches will come soon, just ignore it.
Otherwise, please pull it because compat_sys_shmat is broken now
for 64K pages.

Signed-off-by: Yury Norov <redacted>

Sounds good. Will, do you want to take this for the arm64 tree.

Acked-by: Arnd Bergmann <arnd@arndb.de>

(actually Cc Will Deacon)

Will or Catalin, does this look ok to you?

Looks ok on the face of it (although I haven't tried compat w/ 64k pages).

I'll take it via the arm64 tree with your ack.

Cheers,

Will