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powerpc/pseries: skip reserved LMBs in dlpar_memory_add_by_count() 

The function is counting reserved LMBs as available to be added, but
they aren't. This will cause the function to miscalculate the available
LMBs and can trigger errors later on when executing dlpar_add_lmb().

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210622133923.295373-2-danielhb413@gmail.com
This commit is contained in:
Daniel Henrique Barboza 2021-06-22 10:39:21 -03:00 committed by Michael Ellerman
parent bab26238bb
commit b3e3b4db7a
1 changed files with 3 additions and 0 deletions
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3
arch/powerpc/platforms/pseries/hotplug-memory.c
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@ -683,6 +683,9 @@ static int dlpar_memory_add_by_count(u32 lmbs_to_add)
/* Validate that there are enough LMBs to satisfy the request */
for_each_drmem_lmb(lmb) {
if (lmb->flags & DRCONF_MEM_RESERVED)
continue;
if (!(lmb->flags & DRCONF_MEM_ASSIGNED))
lmbs_available++;