Re: [PATCH 17/23] mm: count writeback pages per BDI

Christoph Lameter
2007-08-09T19:27:19Z

On Thu, 9 Aug 2007, Peter Zijlstra wrote:

> Less conditionals. We already have a branch for mapping, why create
> another?

Ah. Okay. This also avoids an interrupt enable disable since you can use
__ functions. Hmmm... Would be good if we could move the vmstat
NR_WRITEBACK update there too. Can a page without a mapping be under
writeback? (Direct I/O?)