diff options
| -rw-r--r-- | drivers/staging/zsmalloc/zsmalloc-main.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/staging/zsmalloc/zsmalloc-main.c b/drivers/staging/zsmalloc/zsmalloc-main.c index 4942d419074b..abf7c13c89c8 100644 --- a/drivers/staging/zsmalloc/zsmalloc-main.c +++ b/drivers/staging/zsmalloc/zsmalloc-main.c @@ -747,7 +747,12 @@ EXPORT_SYMBOL_GPL(zs_free); * * Before using an object allocated from zs_malloc, it must be mapped using * this function. When done with the object, it must be unmapped using - * zs_unmap_object + * zs_unmap_object. + * + * Only one object can be mapped per cpu at a time. There is no protection + * against nested mappings. + * + * This function returns with preemption and page faults disabled. */ void *zs_map_object(struct zs_pool *pool, unsigned long handle) { |