Re: [PATCH] mm/Kconfig: allow user to select MIGRATION if MEMORY_FAILURE is enabled
Mike Rapoport <[email protected]>
| Newsgroups | org.kvack.linux-mm,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
Hi, On Wed, Aug 12, 2026 at 05:16:44PM +0800, Xie Yuanbin wrote: > Currently, memory-failure can be enabled without migration. However, > migration cannot be selected by user when memory-failure is enabled. > > Migration is very useful for soft_offline_page(), which may be triggered > by correctable memory errors. Most of the anonymous or file-mapping > faulty pages can be migrated to other healthy pages. > > Allow user to select MIGRATION if MEMORY_FAILURE is enabled. > Also, select MIGRATION by default if MEMORY_FAILURE is enabled. Do we want to make users decide if they need MIGRATION when MEMORY_FAILURE is enabled? Just make MEMORY_FAILURE select MIGRATION. > Signed-off-by: Xie Yuanbin <[email protected]> > --- > mm/Kconfig | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/mm/Kconfig b/mm/Kconfig > index 8a24c130d008..b4c217383b51 100644 > --- a/mm/Kconfig > +++ b/mm/Kconfig > @@ -682,7 +682,8 @@ config NUMA_MIGRATION > demotion for memory tiering. > > config MIGRATION > - bool > + bool "Enable page migration" if MEMORY_FAILURE > + default y if MEMORY_FAILURE > depends on MMU > > config DEVICE_MIGRATION > -- > 2.55.0 > -- Sincerely yours, Mike.