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Mon, 23 Jun 2025 19:23:10 -0700 (PDT) From: Joanne Koong To: linux-fsdevel@vger.kernel.org Cc: hch@lst.de, miklos@szeredi.hu, brauner@kernel.org, djwong@kernel.org, anuj20.g@samsung.com, linux-xfs@vger.kernel.org, linux-doc@vger.kernel.org, linux-block@vger.kernel.org, gfs2@lists.linux.dev, kernel-team@meta.com Subject: [PATCH v3 09/16] iomap: export iomap_writeback_folio Date: Mon, 23 Jun 2025 19:21:28 -0700 Message-ID: <20250624022135.832899-10-joannelkoong@gmail.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20250624022135.832899-1-joannelkoong@gmail.com> References: <20250624022135.832899-1-joannelkoong@gmail.com> Precedence: bulk X-Mailing-List: gfs2@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Christoph Hellwig Allow fuse to use iomap_writeback_folio for folio laundering. Note that the caller needs to manually submit the pending writeback context. Signed-off-by: Christoph Hellwig Reviewed-by: Joanne Koong --- fs/iomap/buffered-io.c | 4 ++-- include/linux/iomap.h | 1 + 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 2973fced2a52..d7fa885b1a0c 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -1638,8 +1638,7 @@ static bool iomap_writeback_handle_eof(struct folio *folio, struct inode *inode, return true; } -static int iomap_writeback_folio(struct iomap_writepage_ctx *wpc, - struct folio *folio) +int iomap_writeback_folio(struct iomap_writepage_ctx *wpc, struct folio *folio) { struct iomap_folio_state *ifs = folio->private; struct inode *inode = wpc->inode; @@ -1721,6 +1720,7 @@ static int iomap_writeback_folio(struct iomap_writepage_ctx *wpc, mapping_set_error(inode->i_mapping, error); return error; } +EXPORT_SYMBOL_GPL(iomap_writeback_folio); int iomap_writepages(struct iomap_writepage_ctx *wpc) diff --git a/include/linux/iomap.h b/include/linux/iomap.h index bfd178fb7cfc..7e06b3a392f8 100644 --- a/include/linux/iomap.h +++ b/include/linux/iomap.h @@ -465,6 +465,7 @@ void iomap_start_folio_write(struct inode *inode, struct folio *folio, size_t len); void iomap_finish_folio_write(struct inode *inode, struct folio *folio, size_t len); +int iomap_writeback_folio(struct iomap_writepage_ctx *wpc, struct folio *folio); int iomap_writepages(struct iomap_writepage_ctx *wpc); /* -- 2.47.1