diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-ia64/shmparam.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-ia64/shmparam.h')
-rw-r--r-- | include/asm-ia64/shmparam.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/asm-ia64/shmparam.h b/include/asm-ia64/shmparam.h new file mode 100644 index 000000000000..d07508dc54ae --- /dev/null +++ b/include/asm-ia64/shmparam.h | |||
@@ -0,0 +1,12 @@ | |||
1 | #ifndef _ASM_IA64_SHMPARAM_H | ||
2 | #define _ASM_IA64_SHMPARAM_H | ||
3 | |||
4 | /* | ||
5 | * SHMLBA controls minimum alignment at which shared memory segments | ||
6 | * get attached. The IA-64 architecture says that there may be a | ||
7 | * performance degradation when there are virtual aliases within 1MB. | ||
8 | * To reduce the chance of this, we set SHMLBA to 1MB. --davidm 00/12/20 | ||
9 | */ | ||
10 | #define SHMLBA (1024*1024) | ||
11 | |||
12 | #endif /* _ASM_IA64_SHMPARAM_H */ | ||