tree 9ef6353c4100c83176c4e7b5ef3933dc342f91df
parent d374bf14a5ff18133bd6a6cc00f189949f7ba8fb
author Russell King <rmk+kernel@arm.linux.org.uk> 1253449127 +0100
committer Russell King <rmk+kernel@arm.linux.org.uk> 1253462020 +0100

ARM: Add support for checking access permissions on prefetch aborts

ARMv6 introduces non-executable mappings, which can cause prefetch aborts
when an attempt is made to execute from such a mapping.  Currently, this
causes us to loop in the page fault handler since we don't correctly
check for proper permissions.

Fix this by checking that VMAs have VM_EXEC set for prefetch aborts.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>