The patch titled
Subject: hugetlb: remove redundant VM_BUG_ON() in add_reservation_in_range()
has been added to the -mm tree. Its filename is
hugetlb-remove-redundant-vm_bug_on-in-add_reservation_in_range.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/hugetlb-remove-redundant-vm_bug_on-in-add_reservation_in_range.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/hugetlb-remove-redundant-vm_bug_on-in-add_reservation_in_range.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
Subject: hugetlb: remove redundant VM_BUG_ON() in add_reservation_in_range()
When calling hugetlb_resv_map_add(), we've guaranteed that the parameter
'to' is always larger than 'from', so it never returns a negative value
from hugetlb_resv_map_add(). Thus remove the redundant VM_BUG_ON().
Link: https://lkml.kernel.org/r/2b565552f3d06753da1e8dda439c0d96d6d9a5a3.1634797639.git.baolin.wang@xxxxxxxxxxxxxxxxx
Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/hugetlb.c | 1 -
1 file changed, 1 deletion(-)
--- a/mm/hugetlb.c~hugetlb-remove-redundant-vm_bug_on-in-add_reservation_in_range
+++ a/mm/hugetlb.c
@@ -445,7 +445,6 @@ static long add_reservation_in_range(str
add += hugetlb_resv_map_add(resv, rg, last_accounted_offset,
t, h, h_cg, regions_needed);
- VM_BUG_ON(add < 0);
return add;
}
_
Patches currently in -mm which might be from baolin.wang@xxxxxxxxxxxxxxxxx are
hugetlb-support-node-specified-when-using-cma-for-gigantic-hugepages.patch
hugetlb_cgroup-remove-unused-hugetlb_cgroup_from_counter-macro.patch
hugetlb-replace-the-obsolete-hugetlb_instantiation_mutex-in-the-comments.patch
hugetlb-remove-redundant-validation-in-has_same_uncharge_info.patch
hugetlb-remove-redundant-vm_bug_on-in-add_reservation_in_range.patch
mm-migrate-simplify-the-file-backed-pages-validation-when-migrating-its-mapping.patch
