Commit 58450938 authored by Donet Tom's avatar Donet Tom Committed by Madhavan Srinivasan
Browse files

book3s64/radix : Handle error conditions properly in radix_vmemmap_populate 



Error conditions are not handled properly if altmap is not present
and PMD_SIZE vmemmap_alloc_block_buf fails.

In this patch, if vmemmap_alloc_block_buf fails in the non-altmap
case, we will fall back to the base mapping.

Reviewed-by: default avatarRitesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: default avatarDonet Tom <donettom@linux.ibm.com>
Signed-off-by: default avatarMadhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/7f95fe91c827a2fb76367a58dbea724e811fb152.1750593372.git.donettom@linux.ibm.com
parent 41a14527

arch/powerpc/mm/book3s64/radix_pgtable.c

+1 −1
Original line number Diff line number Diff line
@@ -1173,7 +1173,7 @@ int __meminit radix__vmemmap_populate(unsigned long start, unsigned long end, in 
				vmemmap_set_pmd(pmd, p, node, addr, next);

				pr_debug("PMD_SIZE vmemmap mapping\n");

				continue;

			} else if (altmap) {

			} else {

				/*

				 * A vmemmap block allocation can fail due to

				 * alignment requirements and we trying to align