tree 6872f034656cc4ffb80ba51f9b29c35bb8da9f9e
parent cc1ad4a69667be885ac6036a315066854ef8c871
author Catalin Marinas <catalin.marinas@arm.com> 1254848229 +0100
committer Russell King <rmk+kernel@arm.linux.org.uk> 1254917579 +0100

ARM: 5746/1: Handle possible translation errors in ARMv6/v7 coherent_user_range

This is needed because applications using the sys_cacheflush system call
can pass a memory range which isn't mapped yet even though the
corresponding vma is valid. The patch also adds unwinding annotations
for correct backtraces from the coherent_user_range() functions.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>