Re: [PATCH] mm: allow to decrease swap.max below actual swap usage

Hi, Tejun! On Sun, Apr 15, 2018 at 06:39:02PM -0700, Tejun Heo wrote: > Hello, Roman. > > The reclaim behavior is a bit worrisome. > > * It disables an entire swap area while reclaim is in progress. Most > systems only have one swap area, so this would disable allocating > new swap area for

Re: [PATCH] mm: allow to decrease swap.max below actual swap usage

On Sun, 2018-04-15 at 18:39 -0700, Tejun Heo wrote: > Hello, Roman. > > The reclaim behavior is a bit worrisome. > > * It disables an entire swap area while reclaim is in progress. Most > systems only have one swap area, so this would disable allocating > new swap area for everyone. That co

Re: [PATCH] mm: allow to decrease swap.max below actual swap usage

Hello, Roman. The reclaim behavior is a bit worrisome. * It disables an entire swap area while reclaim is in progress. Most systems only have one swap area, so this would disable allocating new swap area for everyone. * The reclaim seems very inefficient. IIUC, it has to read every swap