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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-12 10:39:53 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-12 10:39:53 -0700 |
commit | a667cb7a94d48a483fb5d6006fe04a440f1a42ce (patch) | |
tree | ccb9e596db96d53fcc4ba13a3370ec84912d0f22 /arch/s390 | |
parent | hpfs: fix spelling mistake "partion" -> "partition" (diff) | |
parent | Drop flex_arrays (diff) | |
download | linux-dev-a667cb7a94d48a483fb5d6006fe04a440f1a42ce.tar.xz linux-dev-a667cb7a94d48a483fb5d6006fe04a440f1a42ce.zip |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton:
- a few misc things
- the rest of MM
- remove flex_arrays, replace with new simple radix-tree implementation
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (38 commits)
Drop flex_arrays
sctp: convert to genradix
proc: commit to genradix
generic radix trees
selinux: convert to kvmalloc
md: convert to kvmalloc
openvswitch: convert to kvmalloc
of: fix kmemleak crash caused by imbalance in early memory reservation
mm: memblock: update comments and kernel-doc
memblock: split checks whether a region should be skipped to a helper function
memblock: remove memblock_{set,clear}_region_flags
memblock: drop memblock_alloc_*_nopanic() variants
memblock: memblock_alloc_try_nid: don't panic
treewide: add checks for the return value of memblock_alloc*()
swiotlb: add checks for the return value of memblock_alloc*()
init/main: add checks for the return value of memblock_alloc*()
mm/percpu: add checks for the return value of memblock_alloc*()
sparc: add checks for the return value of memblock_alloc*()
ia64: add checks for the return value of memblock_alloc*()
arch: don't memset(0) memory returned by memblock_alloc()
...
Diffstat (limited to 'arch/s390')
-rw-r--r-- | arch/s390/kernel/crash_dump.c | 3 | ||||
-rw-r--r-- | arch/s390/kernel/setup.c | 16 | ||||
-rw-r--r-- | arch/s390/kernel/smp.c | 9 | ||||
-rw-r--r-- | arch/s390/kernel/topology.c | 6 | ||||
-rw-r--r-- | arch/s390/numa/mode_emu.c | 3 | ||||
-rw-r--r-- | arch/s390/numa/numa.c | 6 |
6 files changed, 41 insertions, 2 deletions
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c index 97eae3871868..f96a5857bbfd 100644 --- a/arch/s390/kernel/crash_dump.c +++ b/arch/s390/kernel/crash_dump.c @@ -61,6 +61,9 @@ struct save_area * __init save_area_alloc(bool is_boot_cpu) struct save_area *sa; sa = (void *) memblock_phys_alloc(sizeof(*sa), 8); + if (!sa) + panic("Failed to allocate save area\n"); + if (is_boot_cpu) list_add(&sa->list, &dump_save_areas); else diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 12934e8fbb91..2c642af526ce 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -378,6 +378,10 @@ static void __init setup_lowcore_dat_off(void) */ BUILD_BUG_ON(sizeof(struct lowcore) != LC_PAGES * PAGE_SIZE); lc = memblock_alloc_low(sizeof(*lc), sizeof(*lc)); + if (!lc) + panic("%s: Failed to allocate %zu bytes align=%zx\n", + __func__, sizeof(*lc), sizeof(*lc)); + lc->restart_psw.mask = PSW_KERNEL_BITS; lc->restart_psw.addr = (unsigned long) restart_int_handler; lc->external_new_psw.mask = PSW_KERNEL_BITS | PSW_MASK_MCHECK; @@ -419,6 +423,9 @@ static void __init setup_lowcore_dat_off(void) * all CPUs in cast *one* of them does a PSW restart. */ restart_stack = memblock_alloc(THREAD_SIZE, THREAD_SIZE); + if (!restart_stack) + panic("%s: Failed to allocate %lu bytes align=0x%lx\n", + __func__, THREAD_SIZE, THREAD_SIZE); restart_stack += STACK_INIT_OFFSET; /* @@ -495,6 +502,9 @@ static void __init setup_resources(void) for_each_memblock(memory, reg) { res = memblock_alloc(sizeof(*res), 8); + if (!res) + panic("%s: Failed to allocate %zu bytes align=0x%x\n", + __func__, sizeof(*res), 8); res->flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM; res->name = "System RAM"; @@ -509,6 +519,9 @@ static void __init setup_resources(void) continue; if (std_res->end > res->end) { sub_res = memblock_alloc(sizeof(*sub_res), 8); + if (!sub_res) + panic("%s: Failed to allocate %zu bytes align=0x%x\n", + __func__, sizeof(*sub_res), 8); *sub_res = *std_res; sub_res->end = res->end; std_res->start = res->end + 1; @@ -966,6 +979,9 @@ static void __init setup_randomness(void) vmms = (struct sysinfo_3_2_2 *) memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE); + if (!vmms) + panic("Failed to allocate memory for sysinfo structure\n"); + if (stsi(vmms, 3, 2, 2) == 0 && vmms->count) add_device_randomness(&vmms->vm, sizeof(vmms->vm[0]) * vmms->count); memblock_free((unsigned long) vmms, PAGE_SIZE); diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index b198ece2aad6..3fe1c77c361b 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -656,7 +656,11 @@ void __init smp_save_dump_cpus(void) /* No previous system present, normal boot. */ return; /* Allocate a page as dumping area for the store status sigps */ - page = memblock_alloc_base(PAGE_SIZE, PAGE_SIZE, 1UL << 31); + page = memblock_phys_alloc_range(PAGE_SIZE, PAGE_SIZE, 0, 1UL << 31); + if (!page) + panic("ERROR: Failed to allocate %lx bytes below %lx\n", + PAGE_SIZE, 1UL << 31); + /* Set multi-threading state to the previous system. */ pcpu_set_smt(sclp.mtid_prev); boot_cpu_addr = stap(); @@ -766,6 +770,9 @@ void __init smp_detect_cpus(void) /* Get CPU information */ info = memblock_alloc(sizeof(*info), 8); + if (!info) + panic("%s: Failed to allocate %zu bytes align=0x%x\n", + __func__, sizeof(*info), 8); smp_get_core_info(info, 1); /* Find boot CPU type */ if (sclp.has_core_type) { diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index 8992b04c0ade..8964a3f60aad 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -520,6 +520,9 @@ static void __init alloc_masks(struct sysinfo_15_1_x *info, nr_masks = max(nr_masks, 1); for (i = 0; i < nr_masks; i++) { mask->next = memblock_alloc(sizeof(*mask->next), 8); + if (!mask->next) + panic("%s: Failed to allocate %zu bytes align=0x%x\n", + __func__, sizeof(*mask->next), 8); mask = mask->next; } } @@ -538,6 +541,9 @@ void __init topology_init_early(void) if (!MACHINE_HAS_TOPOLOGY) goto out; tl_info = memblock_alloc(PAGE_SIZE, PAGE_SIZE); + if (!tl_info) + panic("%s: Failed to allocate %lu bytes align=0x%lx\n", + __func__, PAGE_SIZE, PAGE_SIZE); info = tl_info; store_topology(info); pr_info("The CPU configuration topology of the machine is: %d %d %d %d %d %d / %d\n", diff --git a/arch/s390/numa/mode_emu.c b/arch/s390/numa/mode_emu.c index bfba273c32c0..71a12a4f4906 100644 --- a/arch/s390/numa/mode_emu.c +++ b/arch/s390/numa/mode_emu.c @@ -313,6 +313,9 @@ static void __ref create_core_to_node_map(void) int i; emu_cores = memblock_alloc(sizeof(*emu_cores), 8); + if (!emu_cores) + panic("%s: Failed to allocate %zu bytes align=0x%x\n", + __func__, sizeof(*emu_cores), 8); for (i = 0; i < ARRAY_SIZE(emu_cores->to_node_id); i++) emu_cores->to_node_id[i] = NODE_ID_FREE; } diff --git a/arch/s390/numa/numa.c b/arch/s390/numa/numa.c index 2d1271e2a70d..8eb9e9743f5d 100644 --- a/arch/s390/numa/numa.c +++ b/arch/s390/numa/numa.c @@ -92,8 +92,12 @@ static void __init numa_setup_memory(void) } while (cur_base < end_of_dram); /* Allocate and fill out node_data */ - for (nid = 0; nid < MAX_NUMNODES; nid++) + for (nid = 0; nid < MAX_NUMNODES; nid++) { NODE_DATA(nid) = memblock_alloc(sizeof(pg_data_t), 8); + if (!NODE_DATA(nid)) + panic("%s: Failed to allocate %zu bytes align=0x%x\n", + __func__, sizeof(pg_data_t), 8); + } for_each_online_node(nid) { unsigned long start_pfn, end_pfn; |