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From: Baolin Wang <baolin.wang@linux.alibaba.com>
To: akpm@linux-foundation.org, mike.kravetz@oracle.com
Cc: mhocko@kernel.org, baolin.wang@linux.alibaba.com,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/4] hugetlb: Replace the obsolete hugetlb_instantiation_mutex in the comments
Date: Thu, 21 Oct 2021 14:31:17 +0800	[thread overview]
Message-ID: <4b3febeae37455ff7b74aa0aad16cc6909cf0926.1634797639.git.baolin.wang@linux.alibaba.com> (raw)
In-Reply-To: <cover.1634797639.git.baolin.wang@linux.alibaba.com>
In-Reply-To: <cover.1634797639.git.baolin.wang@linux.alibaba.com>

After commit 8382d914ebf7 ("mm, hugetlb: improve page-fault scalability"),
the hugetlb_instantiation_mutex lock had been replaced by
hugetlb_fault_mutex_table to serializes faults on the same logical page.
Thus update the obsolete hugetlb_instantiation_mutex related comments.

Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
---
 mm/hugetlb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index ee0db48..8902b07 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -5012,7 +5012,7 @@ static void unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
 
 /*
  * Hugetlb_cow() should be called with page lock of the original hugepage held.
- * Called with hugetlb_instantiation_mutex held and pte_page locked so we
+ * Called with hugetlb_fault_mutex_table held and pte_page locked so we
  * cannot race with other handlers or page migration.
  * Keep the pte_same checks anyway to make transition from the mutex easier.
  */
-- 
1.8.3.1


  parent reply	other threads:[~2021-10-21  6:31 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-21  6:31 [PATCH 0/4] Some cleanups and improvements for hugetlb Baolin Wang
2021-10-21  6:31 ` [PATCH 1/4] hugetlb_cgroup: Remove unused hugetlb_cgroup_from_counter macro Baolin Wang
2021-10-22 20:16   ` Mike Kravetz
2021-10-21  6:31 ` Baolin Wang [this message]
2021-10-22 20:44   ` [PATCH 2/4] hugetlb: Replace the obsolete hugetlb_instantiation_mutex in the comments Mike Kravetz
2021-10-21  6:31 ` [PATCH 3/4] hugetlb: Remove redundant validation in has_same_uncharge_info() Baolin Wang
2021-10-22 21:04   ` Mike Kravetz
2021-10-21  6:31 ` [PATCH 4/4] hugetlb: Remove redundant VM_BUG_ON() in add_reservation_in_range() Baolin Wang
2021-10-22 23:57   ` Mike Kravetz

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