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[118.19.49.33]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71ec13d774fsm7608906b3a.106.2024.10.24.02.26.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Oct 2024 02:26:28 -0700 (PDT) From: Ryusuke Konishi To: Andrew Morton Cc: Matthew Wilcox , linux-nilfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH 09/12] nilfs2: Remove nilfs_writepage Date: Thu, 24 Oct 2024 18:25:43 +0900 Message-ID: <20241024092602.13395-10-konishi.ryusuke@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241024092602.13395-1-konishi.ryusuke@gmail.com> References: <20241024092602.13395-1-konishi.ryusuke@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: "Matthew Wilcox (Oracle)" Since nilfs2 has a ->writepages operation already, ->writepage is only called by the migration code. If we add a ->migrate_folio operation, it won't even be used for that and so it can be deleted. [ konishi.ryusuke: fixed panic by using buffer_migrate_folio_norefs ] Link: https://lkml.kernel.org/r/20241002150036.1339475-2-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Ryusuke Konishi --- fs/nilfs2/inode.c | 33 +-------------------------------- 1 file changed, 1 insertion(+), 32 deletions(-) diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index be6acf6e2bfc..c24f06268010 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -170,37 +170,6 @@ static int nilfs_writepages(struct address_space *mapp= ing, return err; } =20 -static int nilfs_writepage(struct page *page, struct writeback_control *wb= c) -{ - struct folio *folio =3D page_folio(page); - struct inode *inode =3D folio->mapping->host; - int err; - - if (sb_rdonly(inode->i_sb)) { - /* - * It means that filesystem was remounted in read-only - * mode because of error or metadata corruption. But we - * have dirty pages that try to be flushed in background. - * So, here we simply discard this dirty page. - */ - nilfs_clear_folio_dirty(folio); - folio_unlock(folio); - return -EROFS; - } - - folio_redirty_for_writepage(wbc, folio); - folio_unlock(folio); - - if (wbc->sync_mode =3D=3D WB_SYNC_ALL) { - err =3D nilfs_construct_segment(inode->i_sb); - if (unlikely(err)) - return err; - } else if (wbc->for_reclaim) - nilfs_flush_segment(inode->i_sb, inode->i_ino); - - return 0; -} - static bool nilfs_dirty_folio(struct address_space *mapping, struct folio *folio) { @@ -295,7 +264,6 @@ nilfs_direct_IO(struct kiocb *iocb, struct iov_iter *it= er) } =20 const struct address_space_operations nilfs_aops =3D { - .writepage =3D nilfs_writepage, .read_folio =3D nilfs_read_folio, .writepages =3D nilfs_writepages, .dirty_folio =3D nilfs_dirty_folio, @@ -304,6 +272,7 @@ const struct address_space_operations nilfs_aops =3D { .write_end =3D nilfs_write_end, .invalidate_folio =3D block_invalidate_folio, .direct_IO =3D nilfs_direct_IO, + .migrate_folio =3D buffer_migrate_folio_norefs, .is_partially_uptodate =3D block_is_partially_uptodate, }; =20 --=20 2.43.0