x86, mm: Add __get_user_pages_fast()

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Introduce a gup_fast() variant which is usable from IRQ/NMI context.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
CC: Nick Piggin <npiggin@suse.de>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Peter Zijlstra 2009-06-15 12:31:37 +02:00 • committed by Ingo Molnar

parent 75f937f24b

commit 465a454f25

2 changed files with 62 additions and 0 deletions

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56

arch/x86/mm/gup.c

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6

include/linux/mm.h

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