Re: [PATCH 2/2] RAS: Introduce the FRU Memory Poison Manager

[Borislav Petkov]

On Wed, Feb 14, 2024 at 09:45:14AM -0500, Yazen Ghannam wrote:
> Yes, we keep a local copy of the records within the module. That way
> we just need to update the local copy and write it down to the
> platform. This saves time and avoids interrupting the platform to do
> an extra read.

I guess this:

diff --git a/drivers/ras/amd/fmpm.c b/drivers/ras/amd/fmpm.c
index 901a1f0018fc..99499a37e9d5 100644
--- a/drivers/ras/amd/fmpm.c
+++ b/drivers/ras/amd/fmpm.c
@@ -142,8 +142,9 @@ static unsigned int max_nr_fru;
 static size_t max_rec_len;
 
 /*
- * Protect the local cache and prevent concurrent writes to storage.
- * This is only needed after init once notifier block registration is done.
+ * Protect the local records cache in fru_records and prevent concurrent
+ * writes to storage. This is only needed after init once notifier block
+ * registration is done.
  */
 static DEFINE_MUTEX(fmpm_update_mutex);
 
I'm still don't like the module param...

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette