Messages in this thread | | | From | Song Liu <> | Subject | Re: [PATCH v2] md/raid0: add config parameters to specify zone layout | Date | Fri, 24 Apr 2020 23:22:23 +0000 |
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> On Mar 30, 2020, at 9:00 AM, Jason Baron <jbaron@akamai.com> wrote: > > Let's add some CONFIG_* options to directly configure the raid0 layout > if you know in advance how your raid0 array was created. This can be > simpler than having to manage module or kernel command-line parameters. > > If the raid0 array was created by a pre-3.14 kernel, use > RAID0_ORIG_LAYOUT. If the raid0 array was created by a 3.14 or newer > kernel then select RAID0_ALT_MULTIZONE_LAYOUT. Otherwise, the default > setting is RAID0_LAYOUT_NONE, in which case the current behavior of > needing to specify a module parameter raid0.default_layout=1|2 is > preserved. > > Cc: Guoqing Jiang <guoqing.jiang@cloud.ionos.com> > Cc: NeilBrown <neilb@suse.de> > Cc: Song Liu <songliubraving@fb.com> > Signed-off-by: Jason Baron <jbaron@akamai.com>
This patch looks good. However, I am not sure whether the user will recompile the kernel for a different default value. Do you have real world use case for this?
Thanks, Song
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