arm64: compat: Allow signal page to be remapped
authorWill Deacon <will@kernel.org>
Thu, 18 Mar 2021 17:07:36 +0000 (17:07 +0000)
committerCatalin Marinas <catalin.marinas@arm.com>
Wed, 24 Mar 2021 16:48:41 +0000 (16:48 +0000)
commit7adbf10e29c2323f5eb6d6bdd13050c70900b993
treecff28d48652bed935b986c453484cb9249ccd865
parente9be47eab1cdaf0a2a3c0af96a6a4be1cf9a95c1
arm64: compat: Allow signal page to be remapped

For compatability with 32-bit Arm, allow the compat signal page to be
remapped via mremap().

Signed-off-by: Will Deacon <will@kernel.org>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Link: https://lore.kernel.org/r/20210318170738.7756-4-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/kernel/vdso.c