tree 87f240d64051f5747027e07592f0ec50cbdd4e37
parent 7711ece9b31f0f3cf15ca16005dfd78988ea8f7e
author Max Filippov <jcmvbkbc@gmail.com> 1368905670 +0400
committer Chris Zankel <chris@zankel.net> 1369075703 -0700

xtensa: fix fast_store_prohibited _PAGE_WRITABLE_BIT test

Before _PAGE_WRITABLE_BIT test fast_store_prohibited must make sure that
PTE is present. Otherwise 'writable' bit is undefined and may be reused
in the 'file offset' or 'swap type' PTE fields.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>