Re: [patch 1/2] mm: page-writeback: fix dirty_balance_reserve subtraction from dirtyable memory

2014-01-28 Thread Michal Hocko
On Fri 24-01-14 17:03:03, Johannes Weiner wrote: > The dirty_balance_reserve is an approximation of the fraction of free > pages that the page allocator does not make available for page cache > allocations. As a result, it has to be taken into account when > calculating the amount of "dirtyable me

Re: [patch 1/2] mm: page-writeback: fix dirty_balance_reserve subtraction from dirtyable memory

2014-01-24 Thread Rik van Riel
On 01/24/2014 05:03 PM, Johannes Weiner wrote: > The dirty_balance_reserve is an approximation of the fraction of free > pages that the page allocator does not make available for page cache > allocations. As a result, it has to be taken into account when > calculating the amount of "dirtyable memo

[patch 1/2] mm: page-writeback: fix dirty_balance_reserve subtraction from dirtyable memory

2014-01-24 Thread Johannes Weiner
The dirty_balance_reserve is an approximation of the fraction of free pages that the page allocator does not make available for page cache allocations. As a result, it has to be taken into account when calculating the amount of "dirtyable memory", the baseline to which dirty_background_ratio and d