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authorKonstantin Khlebnikov <khlebnikov@yandex-team.ru>2015-09-08 15:00:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-08 15:35:28 -0700
commit1c90308e7a77af6742a97d1021cca923b23b7f0d (patch)
tree6b328205937da8bd5d7682975695665f40bef892 /Documentation/vm
parent356515e7b64c2629f686109d426baaf868cdf7e8 (diff)
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: ab676b7d6fbf ("pagemap: do not leak physical addresses to non-privileged userspace") Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Reviewed-by: Mark Williamson <mwilliamson@undo-software.com> Tested-by: Mark Williamson <mwilliamson@undo-software.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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