* anonymous buffer pages @ 2003-08-05 15:45 Raghu R. Arur 2003-08-05 15:54 ` Mel Gorman 0 siblings, 1 reply; 2+ messages in thread From: Raghu R. Arur @ 2003-08-05 15:45 UTC (permalink / raw) To: kernelnewbies; +Cc: linux-mm Hi, when are anonymous buffer pages created and how are they removed from the system in linux 2.4.19 ? In try_to_swap_out() when it encounters a anonymous buffer page the page is not unmapped from the process. So how is this page freed to the free-list ? Thanks a lot, Raghu -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"aart@kvack.org"> aart@kvack.org </a> ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: anonymous buffer pages 2003-08-05 15:45 anonymous buffer pages Raghu R. Arur @ 2003-08-05 15:54 ` Mel Gorman 0 siblings, 0 replies; 2+ messages in thread From: Mel Gorman @ 2003-08-05 15:54 UTC (permalink / raw) To: Raghu R. Arur; +Cc: kernelnewbies, linux-mm On Tue, 5 Aug 2003, Raghu R. Arur wrote: > when are anonymous buffer pages created and how are they removed from > the system in linux 2.4.19 ? Buried in http://www.skynet.ie/~mel/projects/vm/guide/html/understand/node70.html#SECTION001533000000000000000 is "An anonymous page may have associated buffers if it is backed by a swap file." The reason being that the page will need to be written out in block-sized chunks. Once written out, the page->buffers will be null again and it'll be cleared out the normal way via the swap cache when all processes have unmapped the page -- Mel Gorman http://www.csn.ul.ie/~mel -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"aart@kvack.org"> aart@kvack.org </a> ^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2003-08-05 15:54 UTC | newest] Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2003-08-05 15:45 anonymous buffer pages Raghu R. Arur 2003-08-05 15:54 ` Mel Gorman
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