xavi/android_kernel_m2note/arch/arm64/mm/context.c, branch ng-7.1.2Unnamed repository; edit this file 'description' to name the repository.
https://gitea.privatedns.org/xavi/android_kernel_m2note/atom?h=ng-7.1.22016-08-26T17:29:35+00:00arm64: Do not attempt to use init_mm in reset_context()2016-08-26T17:29:35+00:00Catalin Marinascatalin.marinas@arm.com2015-06-12T10:24:41+00:00urn:sha1:f2339dd8fe8b0de7545e6db533125510a0ae3414
commit 565630d503ef24e44c252bed55571b3a0d68455f upstream.
After secondary CPU boot or hotplug, the active_mm of the idle thread is
&init_mm. The init_mm.pgd (swapper_pg_dir) is only meant for TTBR1_EL1
and must not be set in TTBR0_EL1. Since when active_mm == &init_mm the
TTBR0_EL1 is already set to the reserved value, there is no need to
perform any context reset.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stefan Guendhoer <stefan@guendhoer.com>
first commit2016-08-15T02:19:42+00:00Meizu OpenSourcepatchwork@meizu.com2016-08-15T02:19:42+00:00urn:sha1:d2e1446d81725c351dc73a03b397ce043fb18452