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Wong" , Alexander Viro , Matthew Wilcox Cc: Andreas Gruenbacher , linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, cluster-devel@redhat.com Subject: [RFC v6 06/10] iomap: Add __iomap_get_folio helper Date: Sun, 8 Jan 2023 20:40:30 +0100 Message-Id: <20230108194034.1444764-7-agruenba@redhat.com> In-Reply-To: <20230108194034.1444764-1-agruenba@redhat.com> References: <20230108194034.1444764-1-agruenba@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.9 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org Add an __iomap_get_folio() helper as the counterpart of the existing __iomap_put_folio() helper. Use the new helper in iomap_write_begin(). Not a functional change. Signed-off-by: Andreas Gruenbacher Reviewed-by: Christoph Hellwig --- fs/iomap/buffered-io.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 418519dea2ce..666107c3a385 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -602,6 +602,17 @@ static int __iomap_write_begin(const struct iomap_iter *iter, loff_t pos, return 0; } +static struct folio *__iomap_get_folio(struct iomap_iter *iter, loff_t pos, + size_t len) +{ + const struct iomap_page_ops *page_ops = iter->iomap.page_ops; + + if (page_ops && page_ops->page_prepare) + return page_ops->page_prepare(iter, pos, len); + else + return iomap_get_folio(iter, pos); +} + static void __iomap_put_folio(struct iomap_iter *iter, loff_t pos, size_t ret, struct folio *folio) { @@ -642,10 +653,7 @@ static int iomap_write_begin(struct iomap_iter *iter, loff_t pos, if (!mapping_large_folio_support(iter->inode->i_mapping)) len = min_t(size_t, len, PAGE_SIZE - offset_in_page(pos)); - if (page_ops && page_ops->page_prepare) - folio = page_ops->page_prepare(iter, pos, len); - else - folio = iomap_get_folio(iter, pos); + folio = __iomap_get_folio(iter, pos, len); if (IS_ERR(folio)) return PTR_ERR(folio);