[034/143] mm/hugeltb: remove redundant VM_BUG_ON() in region_add()

Commit Message

Andrew Morton May 5, 2021, 1:34 a.m. UTC

From: Miaohe Lin <[e-mail]>
Subject: mm/hugeltb: remove redundant VM_BUG_ON() in region_add()

Patch series "Cleanup and fixup for hugetlb", v2.

This series contains cleanups to remove redundant VM_BUG_ON() and simplify
the return code.  Also this handles the error case in
hugetlb_fix_reserve_counts() correctly.  More details can be found in the
respective changelogs.


This patch (of 5):

The same VM_BUG_ON() check is already done in the callee.  Remove this
extra one to simplify the code slightly.

Link: https://lkml.kernel.org/r/[e-mail]
Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Miaohe Lin <[e-mail]>
Reviewed-by: Mike Kravetz <[e-mail]>
Cc: Feilong Lin <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 mm/hugetlb.c |    1 -
 1 file changed, 1 deletion(-)

Patch

--- a/mm/hugetlb.c~mm-hugeltb-remove-redundant-vm_bug_on-in-region_add
+++ a/mm/hugetlb.c
@@ -553,7 +553,6 @@  retry:
 	resv->adds_in_progress -= in_regions_needed;
 
 	spin_unlock(&resv->lock);
-	VM_BUG_ON(add < 0);
 	return add;
 }