Re: [PATCH] block: fix direct dispatch issue failure for clones

2018-12-06 Thread jianchao.wang
On 12/7/18 9:34 AM, Jens Axboe wrote: > On 12/6/18 6:22 PM, jianchao.wang wrote: >> >> >> On 12/7/18 9:13 AM, Jens Axboe wrote: >>> On 12/6/18 6:04 PM, jianchao.wang wrote: On 12/7/18 6:20 AM, Jens Axboe wrote: > After the direct dispatch corruption fix, we permanently

Re: [PATCH] block: fix direct dispatch issue failure for clones

2018-12-06 Thread Jens Axboe
On 12/6/18 6:22 PM, jianchao.wang wrote: > > > On 12/7/18 9:13 AM, Jens Axboe wrote: >> On 12/6/18 6:04 PM, jianchao.wang wrote: >>> >>> >>> On 12/7/18 6:20 AM, Jens Axboe wrote: After the direct dispatch corruption fix, we permanently disallow direct dispatch of non read/write

Re: [PATCH] block: fix direct dispatch issue failure for clones

2018-12-06 Thread jianchao.wang
On 12/7/18 9:13 AM, Jens Axboe wrote: > On 12/6/18 6:04 PM, jianchao.wang wrote: >> >> >> On 12/7/18 6:20 AM, Jens Axboe wrote: >>> After the direct dispatch corruption fix, we permanently disallow direct >>> dispatch of non read/write requests. This works fine off the normal IO >>> path, as

Re: [PATCH] block: fix direct dispatch issue failure for clones

2018-12-06 Thread Jens Axboe
On 12/6/18 6:04 PM, jianchao.wang wrote: > > > On 12/7/18 6:20 AM, Jens Axboe wrote: >> After the direct dispatch corruption fix, we permanently disallow direct >> dispatch of non read/write requests. This works fine off the normal IO >> path, as they will be retried like any other failed direct

Re: [PATCH] block: fix direct dispatch issue failure for clones

2018-12-06 Thread jianchao.wang
On 12/7/18 6:20 AM, Jens Axboe wrote: > After the direct dispatch corruption fix, we permanently disallow direct > dispatch of non read/write requests. This works fine off the normal IO > path, as they will be retried like any other failed direct dispatch > request. But for the

Re: [PATCH] block: fix direct dispatch issue failure for clones

2018-12-06 Thread Bart Van Assche
On Thu, 2018-12-06 at 15:21 -0700, Jens Axboe wrote: > On 12/6/18 3:20 PM, Jens Axboe wrote: > > After the direct dispatch corruption fix, we permanently disallow direct > > dispatch of non read/write requests. This works fine off the normal IO > > path, as they will be retried like any other

Re: [PATCH] block: fix direct dispatch issue failure for clones

2018-12-06 Thread Jens Axboe
On 12/6/18 3:20 PM, Jens Axboe wrote: > After the direct dispatch corruption fix, we permanently disallow direct > dispatch of non read/write requests. This works fine off the normal IO > path, as they will be retried like any other failed direct dispatch > request. But for the