From cc9542534bf09f33b4da32025b31335588fcefb9 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 7 Dec 2023 08:27:02 +0100 Subject: [PATCH] iomap: move all remaining per-folio logic into iomap_writepage_map Move the tracepoint and the iomap check from iomap_do_writepage into iomap_writepage_map. This keeps all logic in one places, and leaves iomap_do_writepage just as the wrapper for the callback conventions of write_cache_pages, which will go away when that is converted to an iterator. Signed-off-by: Christoph Hellwig Link: https://lore.kernel.org/r/20231207072710.176093-7-hch@lst.de Reviewed-by: Ritesh Harjani (IBM) Reviewed-by: Darrick J. Wong Signed-off-by: Christian Brauner --- fs/iomap/buffered-io.c | 34 +++++++++++----------------------- 1 file changed, 11 insertions(+), 23 deletions(-) diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 75278e1b05f82..e3175d3cc0362 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -1832,19 +1832,25 @@ static bool iomap_writepage_handle_eof(struct folio *folio, struct inode *inode, * At the end of a writeback pass, there will be a cached ioend remaining on the * writepage context that the caller will need to submit. */ -static int -iomap_writepage_map(struct iomap_writepage_ctx *wpc, - struct writeback_control *wbc, struct inode *inode, - struct folio *folio, u64 end_pos) +static int iomap_writepage_map(struct iomap_writepage_ctx *wpc, + struct writeback_control *wbc, struct folio *folio) { struct iomap_folio_state *ifs = folio->private; + struct inode *inode = folio->mapping->host; struct iomap_ioend *ioend, *next; unsigned len = i_blocksize(inode); unsigned nblocks = i_blocks_per_folio(inode, folio); u64 pos = folio_pos(folio); + u64 end_pos = pos + folio_size(folio); int error = 0, count = 0, i; LIST_HEAD(submit_list); + trace_iomap_writepage(inode, pos, folio_size(folio)); + + if (!iomap_writepage_handle_eof(folio, inode, &end_pos)) { + folio_unlock(folio); + return 0; + } WARN_ON_ONCE(end_pos <= pos); if (!ifs && nblocks > 1) { @@ -1944,28 +1950,10 @@ done: return error; } -/* - * Write out a dirty page. - * - * For delalloc space on the page, we need to allocate space and flush it. - * For unwritten space on the page, we need to start the conversion to - * regular allocated space. - */ static int iomap_do_writepage(struct folio *folio, struct writeback_control *wbc, void *data) { - struct iomap_writepage_ctx *wpc = data; - struct inode *inode = folio->mapping->host; - u64 end_pos = folio_pos(folio) + folio_size(folio); - - trace_iomap_writepage(inode, folio_pos(folio), folio_size(folio)); - - if (!iomap_writepage_handle_eof(folio, inode, &end_pos)) { - folio_unlock(folio); - return 0; - } - - return iomap_writepage_map(wpc, wbc, inode, folio, end_pos); + return iomap_writepage_map(data, wbc, folio); } int -- 2.30.2