tree 0100142b94e27eec5f0db65d8a7beeb783277a8e
parent c496433197154144c310a17939736bc5c155914d
author Christophe Leroy <christophe.leroy@csgroup.eu> 1593429323 +0000
committer Michael Ellerman <mpe@ellerman.id.au> 1595772090 +1000

powerpc/32: Set user/kernel boundary at TASK_SIZE instead of PAGE_OFFSET

User space stops at TASK_SIZE. At the moment, kernel space starts
at PAGE_OFFSET.

In order to use space between TASK_SIZE and PAGE_OFFSET for modules,
make TASK_SIZE the limit between user and kernel space.

Note that fault.c already considers TASK_SIZE as the boundary between
user and kernel space.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/b38b52cd8dabbb56fbd6f9219d6f3cdccbb43b44.1593428200.git.christophe.leroy@csgroup.eu