From: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
To: Martin Maletinsky <maletinsky@scs.ch>
Cc: linux-mm@kvack.org
Subject: Re: Memory managment locks
Date: Sat, 15 Sep 2001 22:51:05 -0300 [thread overview]
Message-ID: <20010915225105.A2201@conectiva.com.br> (raw)
In-Reply-To: <3B9CBC3D.7B6509DF@scs.ch>; from maletinsky@scs.ch on Mon, Sep 10, 2001 at 03:12:29PM +0200
Em Mon, Sep 10, 2001 at 03:12:29PM +0200, Martin Maletinsky escreveu:
> I am writing a kernel thread, that should check if a process' page
> (specified by a virtual address and the pointer to a task structure) is
> present in physical memory, and if this is the case pin it in memory
> (i.e. prevent it from being swapped out). I plan to pin the page by
> incrementing it's usage count (i.e. the count field of the corresponding
> page descriptor) - this is the way map_user_kiobuf() pins pages in
> memory. I have some questions about semaphores and spinlocks to be used,
> when accessing a process' mm structure and page tables:
have you looked at the linux-mm wiki at http://linux-mm.org/wiki, specially
this part: http://linux-mm.org/wiki/moin.cgi/MemoryLocking ?
hope this helps,
- Arnaldo
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prev parent reply other threads:[~2001-09-16 1:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-10 13:12 Memory managment locks Martin Maletinsky
2001-09-16 1:51 ` Arnaldo Carvalho de Melo [this message]
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