| Message ID | 20231218153553.807799-17-hch@lst.de (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [01/17] writeback: fix done_index when hitting the wbc->nr_to_write | expand |
On Mon 18-12-23 16:35:52, Christoph Hellwig wrote: > From: "Matthew Wilcox (Oracle)" <willy@infradead.org> > > Use the new for_each_writeback_folio() directly instead of indirecting > through a callback. > > Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> > Signed-off-by: Christoph Hellwig <hch@lst.de> Looks good. Feel free to add: Reviewed-by: Jan Kara <jack@suse.cz> Honza > --- > mm/page-writeback.c | 27 +++++++++++++++------------ > 1 file changed, 15 insertions(+), 12 deletions(-) > > diff --git a/mm/page-writeback.c b/mm/page-writeback.c > index fbffd30a9cc93f..d3c2c78e0c67ce 100644 > --- a/mm/page-writeback.c > +++ b/mm/page-writeback.c > @@ -2564,13 +2564,21 @@ int write_cache_pages(struct address_space *mapping, > } > EXPORT_SYMBOL(write_cache_pages); > > -static int writepage_cb(struct folio *folio, struct writeback_control *wbc, > - void *data) > +static int writeback_use_writepage(struct address_space *mapping, > + struct writeback_control *wbc) > { > - struct address_space *mapping = data; > - int ret = mapping->a_ops->writepage(&folio->page, wbc); > - mapping_set_error(mapping, ret); > - return ret; > + struct blk_plug plug; > + struct folio *folio; > + int err; > + > + blk_start_plug(&plug); > + for_each_writeback_folio(mapping, wbc, folio, err) { > + err = mapping->a_ops->writepage(&folio->page, wbc); > + mapping_set_error(mapping, err); > + } > + blk_finish_plug(&plug); > + > + return err; > } > > int do_writepages(struct address_space *mapping, struct writeback_control *wbc) > @@ -2586,12 +2594,7 @@ int do_writepages(struct address_space *mapping, struct writeback_control *wbc) > if (mapping->a_ops->writepages) { > ret = mapping->a_ops->writepages(mapping, wbc); > } else if (mapping->a_ops->writepage) { > - struct blk_plug plug; > - > - blk_start_plug(&plug); > - ret = write_cache_pages(mapping, wbc, writepage_cb, > - mapping); > - blk_finish_plug(&plug); > + ret = writeback_use_writepage(mapping, wbc); > } else { > /* deal with chardevs and other special files */ > ret = 0; > -- > 2.39.2 >
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index fbffd30a9cc93f..d3c2c78e0c67ce 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -2564,13 +2564,21 @@ int write_cache_pages(struct address_space *mapping, } EXPORT_SYMBOL(write_cache_pages); -static int writepage_cb(struct folio *folio, struct writeback_control *wbc, - void *data) +static int writeback_use_writepage(struct address_space *mapping, + struct writeback_control *wbc) { - struct address_space *mapping = data; - int ret = mapping->a_ops->writepage(&folio->page, wbc); - mapping_set_error(mapping, ret); - return ret; + struct blk_plug plug; + struct folio *folio; + int err; + + blk_start_plug(&plug); + for_each_writeback_folio(mapping, wbc, folio, err) { + err = mapping->a_ops->writepage(&folio->page, wbc); + mapping_set_error(mapping, err); + } + blk_finish_plug(&plug); + + return err; } int do_writepages(struct address_space *mapping, struct writeback_control *wbc) @@ -2586,12 +2594,7 @@ int do_writepages(struct address_space *mapping, struct writeback_control *wbc) if (mapping->a_ops->writepages) { ret = mapping->a_ops->writepages(mapping, wbc); } else if (mapping->a_ops->writepage) { - struct blk_plug plug; - - blk_start_plug(&plug); - ret = write_cache_pages(mapping, wbc, writepage_cb, - mapping); - blk_finish_plug(&plug); + ret = writeback_use_writepage(mapping, wbc); } else { /* deal with chardevs and other special files */ ret = 0;