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author | Miaohe Lin <linmiaohe@huawei.com> | 2022-02-17 17:53:27 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-02 13:42:57 +0300 |
commit | 78706b051a8a314b55f13bcef3351e7d8e974a88 (patch) | |
tree | baa20ec95dcb1f91f7930c05224aaedf739a8ddd /mm/memblock.c | |
parent | 4185b788d3adc9e66b5b9c959b91ae17b8488fc3 (diff) | |
download | linux-78706b051a8a314b55f13bcef3351e7d8e974a88.tar.xz |
memblock: use kfree() to release kmalloced memblock regions
commit c94afc46cae7ad41b2ad6a99368147879f4b0e56 upstream.
memblock.{reserved,memory}.regions may be allocated using kmalloc() in
memblock_double_array(). Use kfree() to release these kmalloced regions
indicated by memblock_{reserved,memory}_in_slab.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Fixes: 3010f876500f ("mm: discard memblock data later")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/memblock.c')
-rw-r--r-- | mm/memblock.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/mm/memblock.c b/mm/memblock.c index faa4de579b3d..f72d53957033 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -366,14 +366,20 @@ void __init memblock_discard(void) addr = __pa(memblock.reserved.regions); size = PAGE_ALIGN(sizeof(struct memblock_region) * memblock.reserved.max); - __memblock_free_late(addr, size); + if (memblock_reserved_in_slab) + kfree(memblock.reserved.regions); + else + __memblock_free_late(addr, size); } if (memblock.memory.regions != memblock_memory_init_regions) { addr = __pa(memblock.memory.regions); size = PAGE_ALIGN(sizeof(struct memblock_region) * memblock.memory.max); - __memblock_free_late(addr, size); + if (memblock_memory_in_slab) + kfree(memblock.memory.regions); + else + __memblock_free_late(addr, size); } memblock_memory = NULL; |