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| author | Robert Richter <robert.richter@amd.com> | 2011-06-07 11:49:55 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-07-21 20:41:57 +0200 |
| commit | 1ac2e6ca44e13a087eb7438d284f887097ee7e84 (patch) | |
| tree | 7ee4f00a67850e1e247610cefeae0ee7aa7b239a /arch/x86/include | |
| parent | perf: Remove perf_event_attr::type check (diff) | |
| download | linux-1ac2e6ca44e13a087eb7438d284f887097ee7e84.tar.xz linux-1ac2e6ca44e13a087eb7438d284f887097ee7e84.zip | |
x86, perf: Make copy_from_user_nmi() a library function
copy_from_user_nmi() is used in oprofile and perf. Moving it to other
library functions like copy_from_user(). As this is x86 code for 32
and 64 bits, create a new file usercopy.c for unified code.
Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20110607172413.GJ20052@erda.amd.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/uaccess.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index 99ddd148a760..36361bf6fdd1 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -555,6 +555,9 @@ struct __large_struct { unsigned long buf[100]; }; #endif /* CONFIG_X86_WP_WORKS_OK */ +extern unsigned long +copy_from_user_nmi(void *to, const void __user *from, unsigned long n); + /* * movsl can be slow when source and dest are not both 8-byte aligned */ |