Re: [PATCH 4/6] VM: Don't call bdi_stat(BDI_UNSTABLE) on non-nfs backing-devices

Wu Fengguang
2010-01-07T01:56:00Z

On Thu, Jan 07, 2010 at 04:51:10AM +0800, Trond Myklebust wrote:

> avail_dirty += bdi_stat(bdi, BDI_DIRTY) +
> - bdi_stat(bdi, BDI_UNSTABLE) +
> bdi_stat(bdi, BDI_WRITEBACK);
> + if (bdi_cap_account_unstable(bdi))
> + avail_dirty += bdi_stat(bdi, BDI_UNSTABLE);

It seems that not changing the bdi_stat()s makes more readable code,
otherwise looks OK to me.

Reviewed-by: Wu Fengguang <fengguang.wu@intel.com>