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Date: Fri, 13 Dec 2013 11:51:02 +0100 From: Richard Weinberger <richard.weinberger@...il.com> To: Toralf Förster <toralf.foerster@....de> Cc: Jan Kara <jack@...e.cz>, "linux-mm@...ck.org" <linux-mm@...ck.org>, Linux Kernel <linux-kernel@...r.kernel.org>, UML devel <user-mode-linux-devel@...ts.sourceforge.net> Subject: Re: [uml-devel] why does index in truncate_inode_pages_range() grows so much ? On Fri, Dec 13, 2013 at 10:52 AM, Toralf Förster <toralf.foerster@....de> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > On 12/11/2013 09:26 PM, Jan Kara wrote: >> Thanks! So this works more or less as expected - trinity issued a >> read at absurdly high offset so we created pagecache page a that >> offset and tried to read data into it. That failed. We left the >> page in the pagecache where it was for reclaim to reclaim it when >> free pages are needed. Everything works as designed except we could >> possibly argue that it's not the most efficient way to use >> pages... >> >> Patch 'vfs: fix a bug when we do some dio reads with append dio >> writes' (http://www.spinics.net/lists/linux-fsdevel/msg70899.html) >> should actually change the situation and we won't unnecessarily >> cache these pages. >> > confirmed - applied to latest git tree of Linus I helps. Good to know! :-) -- Thanks, //richard -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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