tree dbca9451c0478011b51a623b32f3b04305e75212
parent b1d4d9e0cbd0aecf40c3572e0c8f98de31b3b328
author Konstantin Khlebnikov <khlebnikov@openvz.org> 1338506780 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1338511769 -0700

proc/smaps: show amount of nonlinear ptes in vma

Currently, nonlinear mappings can not be distinguished from ordinary
mappings.  This patch adds into /proc/pid/smaps line "Nonlinear: <size>
kB", where size is amount of nonlinear ptes in vma, this line appears only
if VM_NONLINEAR is set.  This information may be useful not only for
checkpoint/restore project.

Requested by Pavel Emelyanov.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>