From: Huang Shijie sjhuang@iluvatar.ai
[ Upstream commit 6862d2fc81859f88c1f3f660886427893f2b4f3f ]
Some devices may have big memory on chip, such as over 1G. In some cases, the nbytes maybe bigger then 4M which is the bounday of the memory buddy system (4K default).
So use vzalloc_node() to allocate the bitmap. Also use vfree to free it.
Link: http://lkml.kernel.org/r/20181225015701.6289-1-sjhuang@iluvatar.ai Signed-off-by: Huang Shijie sjhuang@iluvatar.ai Reviewed-by: Andrew Morton akpm@linux-foundation.org Cc: Alexey Skidanov alexey.skidanov@intel.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- lib/genalloc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/genalloc.c b/lib/genalloc.c index e4303fb2a7b28..38764572ddde8 100644 --- a/lib/genalloc.c +++ b/lib/genalloc.c @@ -187,7 +187,7 @@ int gen_pool_add_virt(struct gen_pool *pool, unsigned long virt, phys_addr_t phy int nbytes = sizeof(struct gen_pool_chunk) + BITS_TO_LONGS(nbits) * sizeof(long);
- chunk = kzalloc_node(nbytes, GFP_KERNEL, nid); + chunk = vzalloc_node(nbytes, nid); if (unlikely(chunk == NULL)) return -ENOMEM;
@@ -251,7 +251,7 @@ void gen_pool_destroy(struct gen_pool *pool) bit = find_next_bit(chunk->bits, end_bit, 0); BUG_ON(bit < end_bit);
- kfree(chunk); + vfree(chunk); } kfree_const(pool->name); kfree(pool);