Re: [PATCH 09/13] writeback: requeue_io() on redirtied inode

2008-01-16 Thread Fengguang Wu
On Wed, Jan 16, 2008 at 07:13:07PM +1100, David Chinner wrote: > On Tue, Jan 15, 2008 at 08:36:46PM +0800, Fengguang Wu wrote: > > Redirtied inodes could be seen in really fast writes. > > They should really be synced as soon as possible. > > > > redirty_tail() could delay the inode for up to 30s.

Re: [PATCH 09/13] writeback: requeue_io() on redirtied inode

2008-01-16 Thread David Chinner
On Tue, Jan 15, 2008 at 08:36:46PM +0800, Fengguang Wu wrote: > Redirtied inodes could be seen in really fast writes. > They should really be synced as soon as possible. > > redirty_tail() could delay the inode for up to 30s. > Kill the delay by using requeue_io() instead. That's actually bad for