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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/unicore32/mm/mmu.c | |
parent | cb1d150d809e2409725ba275c5101c4fc4465b8e (diff) | |
parent | 586187d7de71b4da7956ba588ae42253b9ff6482 (diff) | |
download | linux-a667cb7a94d48a483fb5d6006fe04a440f1a42ce.tar.bz2 |
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/unicore32/mm/mmu.c')
-rw-r--r-- | arch/unicore32/mm/mmu.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/unicore32/mm/mmu.c b/arch/unicore32/mm/mmu.c index a40219291965..aa2060beb408 100644 --- a/arch/unicore32/mm/mmu.c +++ b/arch/unicore32/mm/mmu.c @@ -145,8 +145,13 @@ static pte_t * __init early_pte_alloc(pmd_t *pmd, unsigned long addr, unsigned long prot) { if (pmd_none(*pmd)) { - pte_t *pte = memblock_alloc(PTRS_PER_PTE * sizeof(pte_t), - PTRS_PER_PTE * sizeof(pte_t)); + size_t size = PTRS_PER_PTE * sizeof(pte_t); + pte_t *pte = memblock_alloc(size, size); + + if (!pte) + panic("%s: Failed to allocate %zu bytes align=%zx\n", + __func__, size, size); + __pmd_populate(pmd, __pa(pte) | prot); } BUG_ON(pmd_bad(*pmd)); @@ -349,6 +354,9 @@ static void __init devicemaps_init(void) * Allocate the vector page early. */ vectors = memblock_alloc(PAGE_SIZE, PAGE_SIZE); + if (!vectors) + panic("%s: Failed to allocate %lu bytes align=0x%lx\n", + __func__, PAGE_SIZE, PAGE_SIZE); for (addr = VMALLOC_END; addr; addr += PGDIR_SIZE) pmd_clear(pmd_off_k(addr)); @@ -426,6 +434,9 @@ void __init paging_init(void) /* allocate the zero page. */ zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE); + if (!zero_page) + panic("%s: Failed to allocate %lu bytes align=0x%lx\n", + __func__, PAGE_SIZE, PAGE_SIZE); bootmem_init(); |