From: Miaohe Lin <linmiaohe@huawei.com>
To: <akpm@linux-foundation.org>
Cc: <ziy@nvidia.com>, <william.kucharski@oracle.com>,
<willy@infradead.org>, <yang.shi@linux.alibaba.com>,
<aneesh.kumar@linux.ibm.com>, <rcampbell@nvidia.com>,
<songliubraving@fb.com>, <kirill.shutemov@linux.intel.com>,
<riel@surriel.com>, <hannes@cmpxchg.org>, <minchan@kernel.org>,
<hughd@google.com>, <adobriyan@gmail.com>,
<linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>,
<linux-fsdevel@vger.kernel.org>, <linmiaohe@huawei.com>
Subject: [PATCH v3 1/5] mm/huge_memory.c: remove dedicated macro HPAGE_CACHE_INDEX_MASK
Date: Tue, 11 May 2021 21:48:53 +0800 [thread overview]
Message-ID: <20210511134857.1581273-2-linmiaohe@huawei.com> (raw)
In-Reply-To: <20210511134857.1581273-1-linmiaohe@huawei.com>
Rewrite the pgoff checking logic to remove macro HPAGE_CACHE_INDEX_MASK
which is only used here to simplify the code.
Reviewed-by: Yang Shi <shy828301@gmail.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
include/linux/huge_mm.h | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 9626fda5efce..0a526f211fec 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -152,15 +152,13 @@ static inline bool __transparent_hugepage_enabled(struct vm_area_struct *vma)
bool transparent_hugepage_enabled(struct vm_area_struct *vma);
-#define HPAGE_CACHE_INDEX_MASK (HPAGE_PMD_NR - 1)
-
static inline bool transhuge_vma_suitable(struct vm_area_struct *vma,
unsigned long haddr)
{
/* Don't have to check pgoff for anonymous vma */
if (!vma_is_anonymous(vma)) {
- if (((vma->vm_start >> PAGE_SHIFT) & HPAGE_CACHE_INDEX_MASK) !=
- (vma->vm_pgoff & HPAGE_CACHE_INDEX_MASK))
+ if (!IS_ALIGNED((vma->vm_start >> PAGE_SHIFT) - vma->vm_pgoff,
+ HPAGE_PMD_NR))
return false;
}
--
2.23.0
next prev parent reply other threads:[~2021-05-11 13:49 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-11 13:48 [PATCH v3 0/5] Cleanup and fixup for huge_memory Miaohe Lin
2021-05-11 13:48 ` Miaohe Lin [this message]
2021-05-11 13:48 ` [PATCH v3 2/5] mm/huge_memory.c: use page->deferred_list Miaohe Lin
2021-05-11 23:03 ` Matthew Wilcox
2021-05-12 2:02 ` Miaohe Lin
2021-05-11 13:48 ` [PATCH v3 3/5] mm/huge_memory.c: add missing read-only THP checking in transparent_hugepage_enabled() Miaohe Lin
2021-05-13 21:30 ` Yang Shi
2021-05-14 1:53 ` Miaohe Lin
2021-05-11 13:48 ` [PATCH v3 4/5] mm/huge_memory.c: remove unnecessary tlb_remove_page_size() for huge zero pmd Miaohe Lin
2021-05-11 13:48 ` [PATCH v3 5/5] mm/huge_memory.c: don't discard hugepage if other processes are mapping it Miaohe Lin
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