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(parent: 8325d9c) | patch
x86, sched_clock(): mark variables read-mostly
authorIngo Molnar <mingo@elte.hu>
Tue, 10 Mar 2009 18:02:30 +0000 (19:02 +0100)
committerIngo Molnar <mingo@elte.hu>
Tue, 10 Mar 2009 18:02:30 +0000 (19:02 +0100)
commitf24ade3a3332811a512ed3b6c6aa69486719b1d8
tree639fd20053f3c3738ee8ff7893753741e8c684c0tree
parent8325d9c09dedf45476f4d6261d1b6a72e4a7453fcommit | diff
x86, sched_clock(): mark variables read-mostly

Impact: micro-optimization

There's a number of variables in the sched_clock() path that are
in .data/.bss - but not marked __read_mostly. This creates the
danger of accidental false cacheline sharing with some other,
write-often variable.

So mark them __read_mostly.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/tsc.c diff | blob | history
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