Re: [RFC v7 0/5] pstore/block: new support logger for block devices

2019-02-13 Thread Rob Herring
On Tue, Feb 12, 2019 at 2:54 PM Kees Cook wrote: > > On Wed, Jan 23, 2019 at 4:06 AM liaoweixiong > wrote: > > > > Why should we need pstore_block? > > 1. Most embedded intelligent equipment have no persistent ram, which > > increases costs. We perfer to cheaper solutions, like block devices. > >

Re: [RFC v7 0/5] pstore/block: new support logger for block devices

2019-02-12 Thread liaoweixiong
On 2019-02-13 04:54, Kees Cook wrote: > On Wed, Jan 23, 2019 at 4:06 AM liaoweixiong > wrote: >> >> Why should we need pstore_block? >> 1. Most embedded intelligent equipment have no persistent ram, which >> increases costs. We perfer to cheaper solutions, like block devices. >> In fast, there is

Re: [RFC v7 0/5] pstore/block: new support logger for block devices

2019-02-12 Thread Kees Cook
On Wed, Jan 23, 2019 at 4:06 AM liaoweixiong wrote: > > Why should we need pstore_block? > 1. Most embedded intelligent equipment have no persistent ram, which > increases costs. We perfer to cheaper solutions, like block devices. > In fast, there is already a sample for block device logger in dri

Re: [RFC v7 0/5] pstore/block: new support logger for block devices

2019-01-24 Thread liaoweixiong
On 2019-01-24 02:26, Aaro Koskinen wrote: > Hi, > > On Wed, Jan 23, 2019 at 08:05:11PM +0800, liaoweixiong wrote: >> Why should we need pstore_block? >> 1. Most embedded intelligent equipment have no persistent ram, which >> increases costs. We perfer to cheaper solutions, like block devices. >> I

Re: [RFC v7 0/5] pstore/block: new support logger for block devices

2019-01-23 Thread Aaro Koskinen
Hi, On Wed, Jan 23, 2019 at 08:05:11PM +0800, liaoweixiong wrote: > Why should we need pstore_block? > 1. Most embedded intelligent equipment have no persistent ram, which > increases costs. We perfer to cheaper solutions, like block devices. > In fast, there is already a sample for block device l

[RFC v7 0/5] pstore/block: new support logger for block devices

2019-01-23 Thread liaoweixiong
Why should we need pstore_block? 1. Most embedded intelligent equipment have no persistent ram, which increases costs. We perfer to cheaper solutions, like block devices. In fast, there is already a sample for block device logger in driver MTD (drivers/mtd/mtdoops.c). 2. Do not any equipment have b