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arch/s390: save_area_alloc default failure behavior changed to panic

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Now with the memblock_alloc_or_panic interface, save_area_alloc no longer
needs to handle panic itself.

Link: https://lkml.kernel.org/r/20250109033136.2845676-1-guoweikang.kernel@gmail.com
Link: https://lore.kernel.org/lkml/Z2fknmnNtiZbCc7x@kernel.org/
Signed-off-by: Guo Weikang <guoweikang.kernel@gmail.com>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Guo Weikang 2025-01-09 11:31:36 +08:00 committed by Andrew Morton
parent 7f9387a7d5
commit 813fd59c16
3 changed files with 2 additions and 9 deletions
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4
arch/s390/kernel/crash_dump.c
View File

@ -63,9 +63,7 @@ struct save_area * __init save_area_alloc(bool is_boot_cpu)
{
struct save_area *sa;
sa = memblock_alloc(sizeof(*sa), 8);
if (!sa)
return NULL;
sa = memblock_alloc_or_panic(sizeof(*sa), 8);
if (is_boot_cpu)
list_add(&sa->list, &dump_save_areas);

3
arch/s390/kernel/numa.c
View File

@ -21,9 +21,8 @@ void __init numa_setup(void)
nodes_clear(node_possible_map);
node_set(0, node_possible_map);
node_set_online(0);
for (nid = 0; nid < MAX_NUMNODES; nid++) {
for (nid = 0; nid < MAX_NUMNODES; nid++)
NODE_DATA(nid) = memblock_alloc_or_panic(sizeof(pg_data_t), 8);
}
NODE_DATA(0)->node_spanned_pages = memblock_end_of_DRAM() >> PAGE_SHIFT;
NODE_DATA(0)->node_id = 0;
}

4
arch/s390/kernel/smp.c
View File

@ -611,8 +611,6 @@ void __init smp_save_dump_ipl_cpu(void)
if (!dump_available())
return;
sa = save_area_alloc(true);
if (!sa)
panic("could not allocate memory for boot CPU save area\n");
regs = memblock_alloc_or_panic(512, 8);
copy_oldmem_kernel(regs, __LC_FPREGS_SAVE_AREA, 512);
save_area_add_regs(sa, regs);
@ -646,8 +644,6 @@ void __init smp_save_dump_secondary_cpus(void)
SIGP_CC_NOT_OPERATIONAL)
continue;
sa = save_area_alloc(false);
if (!sa)
panic("could not allocate memory for save area\n");
__pcpu_sigp_relax(addr, SIGP_STORE_STATUS_AT_ADDRESS, __pa(page));
save_area_add_regs(sa, page);
if (cpu_has_vx()) {