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authorDaniel Henrique Barboza <danielhb413@gmail.com>2021-06-22 16:39:21 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2021-06-24 17:07:09 +0300
commitb3e3b4db7a9bafdd81735e6f8db0c5ee9b9d0b5f (patch)
treea1c5366d4828b1952eab22f5bdf2ec647672ea64 /arch/powerpc/platforms/pseries/hotplug-memory.c
parentbab26238bbd44d5a4687c0a64fd2c7f2755ea937 (diff)
downloadlinux-b3e3b4db7a9bafdd81735e6f8db0c5ee9b9d0b5f.tar.xz
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
Diffstat (limited to 'arch/powerpc/platforms/pseries/hotplug-memory.c')
-rw-r--r--arch/powerpc/platforms/pseries/hotplug-memory.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 36f66556a7c6..28a7fd90232f 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -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++;