Messages in this thread | | | From | KOSAKI Motohiro <> | Subject | Re: [PATCH][RFC] add MAP_UNLOCKED mmap flag | Date | Tue, 6 Oct 2009 19:11:06 +0900 (JST) |
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Hi
> If application does mlockall(MCL_FUTURE) it is no longer possible to > mmap file bigger than main memory or allocate big area of anonymous > memory. Sometimes it is desirable to lock everything related to program > execution into memory, but still be able to mmap big file or allocate > huge amount of memory and allow OS to swap them on demand. MAP_UNLOCKED > allows to do that. > > Signed-off-by: Gleb Natapov <gleb@redhat.com>
Why don't you use explicit munlock()? Plus, Can you please elabrate which workload nedd this feature?
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