Re: [PATCH 1/3] Btrfs: remove nr_async_bios

2017-09-29 Thread Liu Bo
On Wed, Sep 27, 2017 at 01:30:13PM +0200, David Sterba wrote: > On Thu, Sep 07, 2017 at 11:22:20AM -0600, Liu Bo wrote: > > This was intended to congest higher layers to not send bios, but as > > > > 1) the congested bit has been taken by writeback > > Can you please be more specific here? >

Re: [PATCH 1/3] Btrfs: remove nr_async_bios

2017-09-27 Thread David Sterba
On Thu, Sep 07, 2017 at 11:22:20AM -0600, Liu Bo wrote: > This was intended to congest higher layers to not send bios, but as > > 1) the congested bit has been taken by writeback Can you please be more specific here? > 2) and no one is waiting for %nr_async_bios down to zero, > > we can safely

[PATCH 1/3] Btrfs: remove nr_async_bios

2017-09-07 Thread Liu Bo
This was intended to congest higher layers to not send bios, but as 1) the congested bit has been taken by writeback 2) and no one is waiting for %nr_async_bios down to zero, we can safely remove this now. Signed-off-by: Liu Bo --- fs/btrfs/ctree.h | 1 -