diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-06-15 12:31:37 +0200 |
|---|---|---|
| committer | Willy Tarreau <w@1wt.eu> | 2012-02-11 15:38:10 +0100 |
| commit | 8669a4b665030d64d19e33e036b1a3e77202b67e (patch) | |
| tree | cc712bba869803f2638733a1055c7df8cd256d46 /include | |
| parent | 3db7e32f7521df6f9b64a9b04abb00dd11ca5735 (diff) | |
x86, mm: Add __get_user_pages_fast()
Introduce a gup_fast() variant which is usable from IRQ/NMI context.
[ WT: this one is only needed for next patch ]
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>
Signed-off-by: Willy Tarreau <w@1wt.eu>
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 c20007caa48d..4d34c2016155 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -850,6 +850,12 @@ 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 |