Re: [PATCH] mm/swap: add independed bio pool for swap

2012-12-20 Thread Konstantin Khlebnikov
Andrew Morton wrote: On Mon, 17 Dec 2012 20:45:13 -0800 (PST) Hugh Dickins wrote: On Fri, 14 Dec 2012, Konstantin Khlebnikov wrote: This bio pool guarantees reclaiming progress for anonymous pages. All avaliable bio in fs_bio_set may be borrowed by writeback which may never ends, because dis

Re: [PATCH] mm/swap: add independed bio pool for swap

2012-12-19 Thread Andrew Morton
On Mon, 17 Dec 2012 20:45:13 -0800 (PST) Hugh Dickins wrote: > On Fri, 14 Dec 2012, Konstantin Khlebnikov wrote: > > > This bio pool guarantees reclaiming progress for anonymous pages. > > All avaliable bio in fs_bio_set may be borrowed by writeback which may > > never ends, because disk too slo

Re: [PATCH] mm/swap: add independed bio pool for swap

2012-12-17 Thread Hugh Dickins
On Fri, 14 Dec 2012, Konstantin Khlebnikov wrote: > This bio pool guarantees reclaiming progress for anonymous pages. > All avaliable bio in fs_bio_set may be borrowed by writeback which may > never ends, because disk too slow or broken. I have seen this situation in > real life in system where wa