diff options
author | Christoph Hellwig <hch@lst.de> | 2023-03-07 15:31:25 +0100 |
---|---|---|
committer | Al Viro <viro@zeniv.linux.org.uk> | 2023-03-12 20:00:42 -0400 |
commit | 2d683175827171c982f91996fdbef4f3fd8b1b01 (patch) | |
tree | 90a974eb9cf013a5ceeec8d78e6f52c254903372 | |
parent | 8e4bfd136410df75c915fb462914b36e6e5fdfc0 (diff) | |
download | linux-stable-2d683175827171c982f91996fdbef4f3fd8b1b01.tar.gz linux-stable-2d683175827171c982f91996fdbef4f3fd8b1b01.tar.bz2 linux-stable-2d683175827171c982f91996fdbef4f3fd8b1b01.zip |
mm,jfs: move write_one_page/folio_write_one to jfs
The last remaining user of folio_write_one through the write_one_page
wrapper is jfs, so move the functionality there and hard code the
call to metapage_writepage.
Note that the use of the pagecache by the JFS 'metapage' buffer cache
is a bit odd, and we could probably do without VM-level dirty tracking
at all, but that's a change for another time.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r-- | fs/jfs/jfs_metapage.c | 39 | ||||
-rw-r--r-- | include/linux/pagemap.h | 6 | ||||
-rw-r--r-- | mm/page-writeback.c | 40 |
3 files changed, 34 insertions, 51 deletions
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c index 2e8461ce74de..961569c11159 100644 --- a/fs/jfs/jfs_metapage.c +++ b/fs/jfs/jfs_metapage.c @@ -691,6 +691,35 @@ void grab_metapage(struct metapage * mp) unlock_page(mp->page); } +static int metapage_write_one(struct page *page) +{ + struct folio *folio = page_folio(page); + struct address_space *mapping = folio->mapping; + struct writeback_control wbc = { + .sync_mode = WB_SYNC_ALL, + .nr_to_write = folio_nr_pages(folio), + }; + int ret = 0; + + BUG_ON(!folio_test_locked(folio)); + + folio_wait_writeback(folio); + + if (folio_clear_dirty_for_io(folio)) { + folio_get(folio); + ret = metapage_writepage(page, &wbc); + if (ret == 0) + folio_wait_writeback(folio); + folio_put(folio); + } else { + folio_unlock(folio); + } + + if (!ret) + ret = filemap_check_errors(mapping); + return ret; +} + void force_metapage(struct metapage *mp) { struct page *page = mp->page; @@ -700,8 +729,8 @@ void force_metapage(struct metapage *mp) get_page(page); lock_page(page); set_page_dirty(page); - if (write_one_page(page)) - jfs_error(mp->sb, "write_one_page() failed\n"); + if (metapage_write_one(page)) + jfs_error(mp->sb, "metapage_write_one() failed\n"); clear_bit(META_forcewrite, &mp->flag); put_page(page); } @@ -746,9 +775,9 @@ void release_metapage(struct metapage * mp) set_page_dirty(page); if (test_bit(META_sync, &mp->flag)) { clear_bit(META_sync, &mp->flag); - if (write_one_page(page)) - jfs_error(mp->sb, "write_one_page() failed\n"); - lock_page(page); /* write_one_page unlocks the page */ + if (metapage_write_one(page)) + jfs_error(mp->sb, "metapage_write_one() failed\n"); + lock_page(page); } } else if (mp->lsn) /* discard_metapage doesn't remove it */ remove_from_logsync(mp); diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 0acb8e1fb7af..853184a46411 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -1066,12 +1066,6 @@ static inline void folio_cancel_dirty(struct folio *folio) bool folio_clear_dirty_for_io(struct folio *folio); bool clear_page_dirty_for_io(struct page *page); void folio_invalidate(struct folio *folio, size_t offset, size_t length); -int __must_check folio_write_one(struct folio *folio); -static inline int __must_check write_one_page(struct page *page) -{ - return folio_write_one(page_folio(page)); -} - int __set_page_dirty_nobuffers(struct page *page); bool noop_dirty_folio(struct address_space *mapping, struct folio *folio); diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 516b1aa247e8..db7943999007 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -2583,46 +2583,6 @@ int do_writepages(struct address_space *mapping, struct writeback_control *wbc) return ret; } -/** - * folio_write_one - write out a single folio and wait on I/O. - * @folio: The folio to write. - * - * The folio must be locked by the caller and will be unlocked upon return. - * - * Note that the mapping's AS_EIO/AS_ENOSPC flags will be cleared when this - * function returns. - * - * Return: %0 on success, negative error code otherwise - */ -int folio_write_one(struct folio *folio) -{ - struct address_space *mapping = folio->mapping; - int ret = 0; - struct writeback_control wbc = { - .sync_mode = WB_SYNC_ALL, - .nr_to_write = folio_nr_pages(folio), - }; - - BUG_ON(!folio_test_locked(folio)); - - folio_wait_writeback(folio); - - if (folio_clear_dirty_for_io(folio)) { - folio_get(folio); - ret = mapping->a_ops->writepage(&folio->page, &wbc); - if (ret == 0) - folio_wait_writeback(folio); - folio_put(folio); - } else { - folio_unlock(folio); - } - - if (!ret) - ret = filemap_check_errors(mapping); - return ret; -} -EXPORT_SYMBOL(folio_write_one); - /* * For address_spaces which do not use buffers nor write back. */ |