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| author | Miaohe Lin <linmiaohe@huawei.com> | 2022-02-17 17:53:27 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-02 13:38:14 +0300 |
| commit | a6fcced73d15ab57cd97813999edf6f19d3032f8 (patch) | |
| tree | 243532462923b7f39842ad5bb9dbab1c5d373bd1 /mm | |
| parent | 9429dfe53ce462d5f308e935625255d95a9aea55 (diff) | |
| download | linux-a6fcced73d15ab57cd97813999edf6f19d3032f8.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')
| -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 4f7c5c3c442c..4d471da3cc47 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -322,14 +322,20 @@ 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); } } #endif |