Message ID | 20200724105809.24733-1-srikar@linux.vnet.ibm.com (mailing list archive) |
---|---|
State | Accepted |
Commit | dbce456280857f329af9069af5e48a9b6ebad146 |
Headers | show |
Series | [v2] powerpc/numa: Limit possible nodes to within num_possible_nodes | expand |
On Fri, 24 Jul 2020 16:28:09 +0530, Srikar Dronamraju wrote: > MAX_NUMNODES is a theoretical maximum number of nodes thats is supported > by the kernel. Device tree properties exposes the number of possible > nodes on the current platform. The kernel would detected this and would > use it for most of its resource allocations. If the platform now > increases the nodes to over what was already exposed, then it may lead > to inconsistencies. Hence limit it to the already exposed nodes. > > [...] Applied to powerpc/next. [1/1] powerpc/numa: Limit possible nodes to within num_possible_nodes https://git.kernel.org/powerpc/c/dbce456280857f329af9069af5e48a9b6ebad146 cheers
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index e437a9ac4956..383359272270 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -221,7 +221,7 @@ static void initialize_distance_lookup_table(int nid, } } -/* Returns nid in the range [0..MAX_NUMNODES-1], or -1 if no useful numa +/* Returns nid in the range [0..nr_node_ids], or -1 if no useful numa * info is found. */ static int associativity_to_nid(const __be32 *associativity) @@ -235,7 +235,7 @@ static int associativity_to_nid(const __be32 *associativity) nid = of_read_number(&associativity[min_common_depth], 1); /* POWER4 LPAR uses 0xffff as invalid node */ - if (nid == 0xffff || nid >= MAX_NUMNODES) + if (nid == 0xffff || nid >= nr_node_ids) nid = NUMA_NO_NODE; if (nid > 0 && @@ -448,7 +448,7 @@ static int of_drconf_to_nid_single(struct drmem_lmb *lmb) index = lmb->aa_index * aa.array_sz + min_common_depth - 1; nid = of_read_number(&aa.arrays[index], 1); - if (nid == 0xffff || nid >= MAX_NUMNODES) + if (nid == 0xffff || nid >= nr_node_ids) nid = default_nid; if (nid > 0) {