Re: [PATCH 0/1] block io layer filters api

2020-09-01 Thread Sergei Shtepa
Jens, thank you so much for your prompt response and clarification on your position. We’re totally committed to having the upstream driver as the canonical version, and to maintaining it. It was probably a mistake not to build it like that right away considering it has always been our vision, bu

Re: [PATCH 0/1] block io layer filters api

2020-09-01 Thread Bart Van Assche
On 2020-09-01 06:29, Sergei Shtepa wrote: > However, the same time requirement also presents a big immediate problem - > as until this is done, over a hundred thousands of Linux users will not be > able to protect their servers running the impacted kernels > (our backup agent is free). > They will

Re: [PATCH 0/1] block io layer filters api

2020-09-01 Thread Jens Axboe
On 9/1/20 7:29 AM, Sergei Shtepa wrote: > The 08/28/2020 16:54, Jens Axboe wrote: >> On 8/27/20 1:13 PM, Sergei Shtepa wrote: >>> Hello everyone! Requesting for your comments and suggestions. >>> >>> We propose new kernel API that should be beneficial for out-of-tree >>> kernel modules of multiple

Re: [PATCH 0/1] block io layer filters api

2020-09-01 Thread Sergei Shtepa
The 08/28/2020 16:54, Jens Axboe wrote: > On 8/27/20 1:13 PM, Sergei Shtepa wrote: > > Hello everyone! Requesting for your comments and suggestions. > > > > We propose new kernel API that should be beneficial for out-of-tree > > kernel modules of multiple backup vendors: block layer filter API. >

Re: [PATCH 0/1] block io layer filters api

2020-08-28 Thread Jens Axboe
On 8/27/20 1:13 PM, Sergei Shtepa wrote: > Hello everyone! Requesting for your comments and suggestions. > > We propose new kernel API that should be beneficial for out-of-tree > kernel modules of multiple backup vendors: block layer filter API. That's just a non-starter, I'm afraid. We generally

Re: [PATCH 0/1] block io layer filters api

2020-08-28 Thread Damien Le Moal
On 2020/08/28 4:14, Sergei Shtepa wrote: > Hello everyone! Requesting for your comments and suggestions. > > We propose new kernel API that should be beneficial for out-of-tree > kernel modules of multiple backup vendors: block layer filter API. > > Functionality: > * Provide callback to intercep

[PATCH 0/1] block io layer filters api

2020-08-27 Thread Sergei Shtepa
Hello everyone! Requesting for your comments and suggestions. We propose new kernel API that should be beneficial for out-of-tree kernel modules of multiple backup vendors: block layer filter API. Functionality: * Provide callback to intercept bio requests, the main purpose is to allow block leve