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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2024-02-15 09:36:49 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-02-24 04:48:38 +0300 |
| commit | c44ed5b7596f0b0421803f16c819ee9c02c50240 (patch) | |
| tree | 7f8f9bbd1d786b0a6feacdb08e6445eab101224e /mm/page-writeback.c | |
| parent | cdc150b575cf1176472791cfbe7738708812ea0d (diff) | |
| download | linux-c44ed5b7596f0b0421803f16c819ee9c02c50240.tar.xz | |
writeback: remove a use of write_cache_pages() from do_writepages()
Use the new writeback_iter() directly instead of indirecting through a
callback.
[hch@lst.de: ported to the while based iter style]
Link: https://lkml.kernel.org/r/20240215063649.2164017-15-hch@lst.de
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Dave Chinner <dchinner@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/page-writeback.c')
| -rw-r--r-- | mm/page-writeback.c | 31 |
1 files changed, 18 insertions, 13 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 3da4345f08a3..3e19b87049db 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -2577,15 +2577,25 @@ 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); + struct folio *folio = NULL; + struct blk_plug plug; + int err; - if (ret < 0) - mapping_set_error(mapping, ret); - return ret; + blk_start_plug(&plug); + while ((folio = writeback_iter(mapping, wbc, folio, &err))) { + err = mapping->a_ops->writepage(&folio->page, wbc); + if (err == AOP_WRITEPAGE_ACTIVATE) { + folio_unlock(folio); + err = 0; + } + mapping_set_error(mapping, err); + } + blk_finish_plug(&plug); + + return err; } int do_writepages(struct address_space *mapping, struct writeback_control *wbc) @@ -2601,12 +2611,7 @@ 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; |