diff mbox series

mm/mmap: Drop VM_BUG_ON() until better tested

Message ID 20220719170841.3298839-1-Liam.Howlett@oracle.com (mailing list archive)
State New
Headers show
Series mm/mmap: Drop VM_BUG_ON() until better tested | expand

Commit Message

Liam R. Howlett July 19, 2022, 5:09 p.m. UTC 
The limits that the maple tree return are trimmed so there is enough space.

Fixes: Fixes: 06fade172129 (mm/mmap: use maple tree for unmapped_area{_topdown})
Reported-by: Yu Zhao <yuzhao@google.com>
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
---
 mm/mmap.c | 4 ----
 1 file changed, 4 deletions(-)
diff mbox series

Patch

diff --git a/mm/mmap.c b/mm/mmap.c
index 8c09d1a44081..b0edf7b70872 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1627,8 +1627,6 @@  static unsigned long unmapped_area(struct vm_unmapped_area_info *info)
 
 	gap = mas.index;
 	gap += (info->align_offset - gap) & info->align_mask;
-	VM_BUG_ON(gap + info->length > info->high_limit);
-	VM_BUG_ON(gap + info->length > mas.last);
 	return gap;
 }
 
@@ -1658,8 +1656,6 @@  static unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info)
 
 	gap = mas.last + 1 - info->length;
 	gap -= (gap - info->align_offset) & info->align_mask;
-	VM_BUG_ON(gap < info->low_limit);
-	VM_BUG_ON(gap < mas.index);
 	return gap;
 }