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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-06-15 12:31:37 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-15 15:57:51 +0200 |
| commit | 465a454f254ee2ff7acc4aececbe31f8af046bc0 (patch) | |
| tree | 459a4ba588c9ccd2320e20d6f9ae66538f2ebfea /include | |
| parent | 75f937f24bd9c003dcb9d7d5509f23459f1f6000 (diff) | |
| download | op-kernel-dev-465a454f254ee2ff7acc4aececbe31f8af046bc0.zip op-kernel-dev-465a454f254ee2ff7acc4aececbe31f8af046bc0.tar.gz | |
x86, mm: Add __get_user_pages_fast()
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mm.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index ad613ed..b457bc0 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -863,6 +863,12 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write, struct page **pages); /* + * doesn't attempt to fault and will return short. + */ +int __get_user_pages_fast(unsigned long start, int nr_pages, int write, + struct page **pages); + +/* * A callback you can register to apply pressure to ageable caches. * * 'shrink' is passed a count 'nr_to_scan' and a 'gfpmask'. It should |
