Johannes Berg a31e9c4e72 Revert "um: support some of ARCH_HAS_SET_MEMORY" ...

This reverts commit 963285b0b4 ("um: support some of
ARCH_HAS_SET_MEMORY"), as it turns out that it's not only not
working (due to um never using the protection bits in the
page tables) but also corrupts the page tables if used on a
non-vmalloc page, since um never allocates proper page tables
for the 'physmem' in the first place.

Fixing all this will take more effort, so for now revert it.

Reported-by: Benjamin Berg <[email protected]>
Fixes: 963285b0b4 ("um: support some of ARCH_HAS_SET_MEMORY")
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Richard Weinberger <[email protected]>

2021-01-26 22:11:38 +01:00

..

asm

Revert "um: support some of ARCH_HAS_SET_MEMORY"

2021-01-26 22:11:38 +01:00

linux

um: Simplify os_idle_sleep() and sleep longer

2020-12-13 22:22:37 +01:00

shared

Revert "um: allocate a guard page to helper threads"

2021-01-26 22:11:38 +01:00