pagemap: hide physical addresses from non-privileged users
This patch makes pagemap readable for normal users and hides physical addresses from them. For some use-cases PFN isn't required at all. See http://lkml.kernel.org/r/1425935472-17949-1-git-send-email-kirill@shutemov.name Fixes: ab676b7d ("pagemap: do not leak physical addresses to non-privileged userspace") Signed-off-by: NKonstantin Khlebnikov <khlebnikov@yandex-team.ru> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Reviewed-by: NMark Williamson <mwilliamson@undo-software.com> Tested-by: NMark Williamson <mwilliamson@undo-software.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
Showing
想要评论请 注册 或 登录