Re: filecache/swapcache questions

[Andrea Arcangeli <andrea@suse.de>]

On Tue, 15 Jun 1999, Kanoj Sarcar wrote:

>What I am trying to find out is if it is enough to put these pages
>in the hash queue for swapper_inode, without really also putting
>them in the inode queue for swapper_inode. Its not like we ever 
>"truncate" swapper_inode, that we will need to go thru its i_pages
>list ...

Yes, it's useless taking them into the swapper inode queue too. It's this
way only because it uses a common interface.

>PS: Q4: who uses rw_swap_page_nolock, and what is shmfs? Note that
>rw_swap_page_nolock is the only caller that passes in non PageSwapCache
>pages into rw_swap_page_base(), which otherwise could assume that
>all pages passed into it are PageSwapCache, which would eliminate
>the need for a seperate PG_swap_unlock_after bit.

Please look at:

	ftp://ftp.suse.com/pub/people/andrea/kernel-patches/2.2.10_andrea-VM5.gz

Andrea Arcangeli

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