summaryrefslogtreecommitdiffstats
path: root/include/linux/mm.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/mm.h')
-rw-r--r--include/linux/mm.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index be1b96ce0650..083cc0ba2384 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1308,7 +1308,7 @@ extern void free_initmem(void);
/*
* Free reserved pages within range [PAGE_ALIGN(start), end & PAGE_MASK)
* into the buddy system. The freed pages will be poisoned with pattern
- * "poison" if it's non-zero.
+ * "poison" if it's within range [0, UCHAR_MAX].
* Return pages freed into the buddy system.
*/
extern unsigned long free_reserved_area(void *start, void *end,
@@ -1348,8 +1348,9 @@ static inline void mark_page_reserved(struct page *page)
/*
* Default method to free all the __init memory into the buddy system.
- * The freed pages will be poisoned with pattern "poison" if it is
- * non-zero. Return pages freed into the buddy system.
+ * The freed pages will be poisoned with pattern "poison" if it's within
+ * range [0, UCHAR_MAX].
+ * Return pages freed into the buddy system.
*/
static inline unsigned long free_initmem_default(int poison)
{