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Mon, 13 Apr 2026 14:21:16 +0800 From: Huang Shijie To: , , CC: , , , , , , , , , , , , , Huang Shijie Subject: [PATCH 1/3] mm: use mapping_mapped to simplify the code Date: Mon, 13 Apr 2026 14:20:40 +0800 Message-ID: <20260413062042.804-2-huangsj@hygon.cn> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260413062042.804-1-huangsj@hygon.cn> References: <20260413062042.804-1-huangsj@hygon.cn> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [172.19.26.208] X-ClientProxiedBy: cncheex06.Hygon.cn (172.23.18.116) To cncheex04.Hygon.cn (172.23.18.114) X-Rspamd-Queue-Id: 4ABB520003 X-Stat-Signature: r1thwfsg935bg7jrrf15maczjho5a1si X-Rspam-User: X-Rspamd-Server: rspam02 X-HE-Tag: 1776061284-902707 X-HE-Meta: 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 8aXjtdLs +NbKWLHO0RQWLzDsTySvWvUaQZSeoUWs/YwM8lDamWUeqZXmyt/RgzYAEARpe8Na9tY9m5ub14cisD5kUMQm6cmnwgGa4B5BhSRq7vOQ37U7qxQLbIr63N1bru4HMTQ3Pw9zEnUcuF8RkyXHkmQk8ffG0VDXbvoZ2DC9UIsDURH3Z2izTgWBwss+RDmBKEllq8jIaN4rMxmxNMmFmyciESBXmu/Vs0nSqsAUZT/aSrRC39MurZ+BNDn1o9knmlofyFXfAts6c1x6PXrBFgT63E0T/pw3Wqi++xuz6GAM/h67wv7+BE3bxC6GgF+MihJH1gNXdOmX+jW+i69pShQ5v88Zj63ttchfubv56M61yYJ0voJSa9sRYPUagAg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Use mapping_mapped() to simplify the code, make the code tidy and clean. Signed-off-by: Huang Shijie --- fs/hugetlbfs/inode.c | 4 ++-- mm/memory.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 3f70c47981de..ab5ac092d8a6 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -646,7 +646,7 @@ static void hugetlb_vmtruncate(struct inode *inode, loff_t offset) i_size_write(inode, offset); i_mmap_lock_write(mapping); - if (!RB_EMPTY_ROOT(&mapping->i_mmap.rb_root)) + if (mapping_mapped(mapping)) hugetlb_vmdelete_list(&mapping->i_mmap, pgoff, 0, ZAP_FLAG_DROP_MARKER); i_mmap_unlock_write(mapping); @@ -707,7 +707,7 @@ static long hugetlbfs_punch_hole(struct inode *inode, loff_t offset, loff_t len) /* Unmap users of full pages in the hole. */ if (hole_end > hole_start) { - if (!RB_EMPTY_ROOT(&mapping->i_mmap.rb_root)) + if (mapping_mapped(mapping)) hugetlb_vmdelete_list(&mapping->i_mmap, hole_start >> PAGE_SHIFT, hole_end >> PAGE_SHIFT, 0); diff --git a/mm/memory.c b/mm/memory.c index 2f815a34d924..366054435773 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -4297,7 +4297,7 @@ void unmap_mapping_folio(struct folio *folio) details.zap_flags = ZAP_FLAG_DROP_MARKER; i_mmap_lock_read(mapping); - if (unlikely(!RB_EMPTY_ROOT(&mapping->i_mmap.rb_root))) + if (unlikely(mapping_mapped(mapping))) unmap_mapping_range_tree(&mapping->i_mmap, first_index, last_index, &details); i_mmap_unlock_read(mapping); @@ -4327,7 +4327,7 @@ void unmap_mapping_pages(struct address_space *mapping, pgoff_t start, last_index = ULONG_MAX; i_mmap_lock_read(mapping); - if (unlikely(!RB_EMPTY_ROOT(&mapping->i_mmap.rb_root))) + if (unlikely(mapping_mapped(mapping))) unmap_mapping_range_tree(&mapping->i_mmap, first_index, last_index, &details); i_mmap_unlock_read(mapping); -- 2.43.0