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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