Re: Ideas to reuse filesystem's checksum to enhance dm-raid1/10/5/6?

2017-11-17 Thread Austin S. Hemmelgarn
On 2017-11-16 20:30, Qu Wenruo wrote: On 2017年11月17日 00:47, Austin S. Hemmelgarn wrote: This is at least less complicated than dm-integrity. Just a new hook for READ bio. And it can start from easy part. Like starting from dm-raid1 and other fs support. It's less complicated for end

Re: Ideas to reuse filesystem's checksum to enhance dm-raid1/10/5/6?

2017-11-16 Thread Austin S. Hemmelgarn
On 2017-11-16 09:06, Qu Wenruo wrote: On 2017年11月16日 20:33, Zdenek Kabelac wrote: Dne 16.11.2017 v 11:04 Qu Wenruo napsal(a): On 2017年11月16日 17:43, Zdenek Kabelac wrote: Dne 16.11.2017 v 09:08 Qu Wenruo napsal(a): [What we have] The nearest infrastructure I found in kernel is bio_int

Re: Ideas to reuse filesystem's checksum to enhance dm-raid1/10/5/6?

2017-11-16 Thread Austin S. Hemmelgarn
On 2017-11-16 07:33, Zdenek Kabelac wrote: Dne 16.11.2017 v 11:04 Qu Wenruo napsal(a): On 2017年11月16日 17:43, Zdenek Kabelac wrote: Dne 16.11.2017 v 09:08 Qu Wenruo napsal(a): [What we have] The nearest infrastructure I found in kernel is bio_integrity_payload. Hi We already have  dm

Re: [PATCH V3 00/11] block-throttle: add .high limit

2016-10-06 Thread Austin S. Hemmelgarn
On 2016-10-06 11:05, Paolo Valente wrote: Il giorno 06 ott 2016, alle ore 15:52, Austin S. Hemmelgarn ha scritto: On 2016-10-06 08:50, Paolo Valente wrote: Il giorno 06 ott 2016, alle ore 13:57, Austin S. Hemmelgarn ha scritto: On 2016-10-06 07:03, Mark Brown wrote: On Thu, Oct 06

Re: [PATCH V3 00/11] block-throttle: add .high limit

2016-10-06 Thread Austin S. Hemmelgarn
On 2016-10-06 08:50, Paolo Valente wrote: Il giorno 06 ott 2016, alle ore 13:57, Austin S. Hemmelgarn ha scritto: On 2016-10-06 07:03, Mark Brown wrote: On Thu, Oct 06, 2016 at 10:04:41AM +0200, Linus Walleij wrote: On Tue, Oct 4, 2016 at 9:14 PM, Tejun Heo wrote: I get that bfq can

Re: [PATCH V3 00/11] block-throttle: add .high limit

2016-10-06 Thread Austin S. Hemmelgarn
On 2016-10-06 07:03, Mark Brown wrote: On Thu, Oct 06, 2016 at 10:04:41AM +0200, Linus Walleij wrote: On Tue, Oct 4, 2016 at 9:14 PM, Tejun Heo wrote: I get that bfq can be a good compromise on most desktop workloads and behave reasonably well for some server workloads with the slice expirat