tree e206038eea131a943b08590b8440d6119875ff00
parent c15238df3b65e34fadb1021b0fb0d5aebc7c42c6
author venkatesh.pallipadi@intel.com <venkatesh.pallipadi@intel.com> 1219275952 -0700
committer Ingo Molnar <mingo@elte.hu> 1219318053 +0200

devmem, x86: PAT Change /dev/mem mmap with O_SYNC to use UC_MINUS

All kernel mappings like ioremap(), etc uses UC_MINUS as the type. /dev/mem
mappings with /dev/mem being opened with O_SYNC however was using UC,
resulting in a conflict with /dev/mem mmap failing. This seems to be
affecting some apps (one being flashrom) which are using O_SYNC and which were
working before.

Switch /dev/mem with O_SYNC also to UC_MINUS.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>