Messages in this thread |  | | From | Christoph Rohland <> | Subject | Re: SHM_LOCK question | Date | Tue, 26 Feb 2002 14:46:37 +0100 |
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Hi Badari,
On Mon, 25 Feb 2002, Badari Pulavarty wrote: > I am trying to understand how SHM_LOCK works on 2.4.17. > All I can see SHM_LOCKED set in shm_flags. I don't see how > it is locking the pages (that are already existing or future > pages). Can somebody explain ?
This flag prevents that the pages are written to swap. shmem_writepage honors it. SHM_LOCK does _not_ force actually swapped out pages into memory though.
Greetings Christoph
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