diff options
| author | Miaohe Lin <linmiaohe@huawei.com> | 2022-02-17 22:53:27 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-02 11:32:06 +0100 |
| commit | 670d6e5a4e715968e00714e6e5514e7d899c1add (patch) | |
| tree | d92a939a0afdf42919fcdb14c733c8d8296f32a5 | |
| parent | 676fcc6fe44e02db3e21330d26fc0446aabf045b (diff) | |
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>
| -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 e43065b13c08..9f4e78dd2aa1 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -272,14 +272,20 @@ 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 |