Hi,
On 2/27/19 11:12 PM, liaoweixiong wrote:
> diff --git a/fs/pstore/Kconfig b/fs/pstore/Kconfig
> index 7dfe00b..b417bf5 100644
> --- a/fs/pstore/Kconfig
> +++ b/fs/pstore/Kconfig
> @@ -210,6 +210,27 @@ config PSTORE_BLKOOPS_DMESG_SIZE
> It is the first priority. Take care of that blkoops will take lower
> priority settings if higher priority one do not set.
>
> +config PSTORE_BLKOOPS_PMSG_SIZE
> + int "pmsg size in kbytes for blkoops"
> + depends on PSTORE_BLKOOPS
> + default 64
> + help
> + This just sets size of pmsg (pmsg_size) for pstore/blk. The value must
> + be a multiple of 4096. Pmsg work only if "blkdev" is set.
works
> +
> + NOTE that, there are three ways to set parameters of blkoops and
> + prioritize according to configuration flexibility. That is
> + Kconfig < device tree < module parameters. It means that the value can
> + be overwritten by higher priority settings.
> + 1. Kconfig
> + It just sets a default value.
> + 2. device tree
> + It is set on device tree, which will overwrites value from Kconfig,
overwrite the value from
Kconfig,
> + but can also be overwritten by module parameters.
> + 3. module parameters
> + It is the first priority. Take care of that blkoops will take lower
> + priority settings if higher priority one do not set.
> +
> config PSTORE_BLKOOPS_TOTAL_SIZE
> int "total size in kbytes for blkoops"
> depends on PSTORE_BLKOOPS
cheers.
--
~Randy
