[merged] mm-hugetlb-remove-redundant-reservation-check-condition-in-alloc_huge_page.patch removed from -mm tree

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



The patch titled
     Subject: mm/hugetlb: remove redundant reservation check condition in alloc_huge_page()
has been removed from the -mm tree.  Its filename was
     mm-hugetlb-remove-redundant-reservation-check-condition-in-alloc_huge_page.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------
From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Subject: mm/hugetlb: remove redundant reservation check condition in alloc_huge_page()

vma_resv_map(vma) checks if a reserve map is associated with the vma.  The
routine vma_needs_reservation() will check vma_resv_map(vma) and return 1
if no reserv map is present.  map_chg is set to the return value of
vma_needs_reservation().  Therefore, !vma_resv_map(vma) is redundant in
the expression:

	map_chg || avoid_reserve || !vma_resv_map(vma);

Remove the redundant check.

[Thanks Mike Kravetz for reshaping this commit message!]

Link: https://lkml.kernel.org/r/20210301104726.45159-1-linmiaohe@xxxxxxxxxx
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/hugetlb.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/hugetlb.c~mm-hugetlb-remove-redundant-reservation-check-condition-in-alloc_huge_page
+++ a/mm/hugetlb.c
@@ -2316,7 +2316,7 @@ struct page *alloc_huge_page(struct vm_a
 
 	/* If this allocation is not consuming a reservation, charge it now.
 	 */
-	deferred_reserve = map_chg || avoid_reserve || !vma_resv_map(vma);
+	deferred_reserve = map_chg || avoid_reserve;
 	if (deferred_reserve) {
 		ret = hugetlb_cgroup_charge_cgroup_rsvd(
 			idx, pages_per_huge_page(h), &h_cg);
_

Patches currently in -mm which might be from linmiaohe@xxxxxxxxxx are





[Index of Archives]     [Kernel Archive]     [IETF Annouce]     [DCCP]     [Netdev]     [Networking]     [Security]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux SCSI]

  Powered by Linux