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
