]> rtime.felk.cvut.cz Git - lisovros/linux_canprio.git/commit
[S390] mm: add devmem_is_allowed() for STRICT_DEVMEM checking
authorHendrik Brueckner <brueckner@linux.vnet.ibm.com>
Wed, 10 Nov 2010 09:05:55 +0000 (10:05 +0100)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Wed, 10 Nov 2010 09:05:54 +0000 (10:05 +0100)
commitec6743bb06510c7b629603ce35713d6ae9273579
tree6faddd2ca7b991987bafc2a7d4241ad6d141b765
parentca768b663131ca644689fcadc9ca092dcc96a758
[S390] mm: add devmem_is_allowed() for STRICT_DEVMEM checking

Provide the devmem_is_allowed() routine to restrict access to
kernel memory from userspace.
Set the CONFIG_STRICT_DEVMEM config option to switch on checking.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
arch/s390/Kconfig.debug
arch/s390/include/asm/page.h