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| author | Ingo Molnar <mingo@elte.hu> | 2008-09-22 13:08:57 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-22 13:08:57 +0200 |
| commit | 0b88641f1bafdbd087d5e63987a30cc0eadd63b9 (patch) | |
| tree | 81dcf756db373444140bb2623584710c628e3048 /arch/ia64/include/asm/shmparam.h | |
| parent | fbdbf709938d155c719c76b9894d28342632c797 (diff) | |
| parent | 72d31053f62c4bc464c2783974926969614a8649 (diff) | |
| download | blackbird-op-linux-0b88641f1bafdbd087d5e63987a30cc0eadd63b9.tar.gz blackbird-op-linux-0b88641f1bafdbd087d5e63987a30cc0eadd63b9.zip | |
Merge commit 'v2.6.27-rc7' into x86/debug
Diffstat (limited to 'arch/ia64/include/asm/shmparam.h')
| -rw-r--r-- | arch/ia64/include/asm/shmparam.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/shmparam.h b/arch/ia64/include/asm/shmparam.h new file mode 100644 index 000000000000..d07508dc54ae --- /dev/null +++ b/arch/ia64/include/asm/shmparam.h @@ -0,0 +1,12 @@ +#ifndef _ASM_IA64_SHMPARAM_H +#define _ASM_IA64_SHMPARAM_H + +/* + * SHMLBA controls minimum alignment at which shared memory segments + * get attached. The IA-64 architecture says that there may be a + * performance degradation when there are virtual aliases within 1MB. + * To reduce the chance of this, we set SHMLBA to 1MB. --davidm 00/12/20 + */ +#define SHMLBA (1024*1024) + +#endif /* _ASM_IA64_SHMPARAM_H */ |
