From ee649af0d9a60ea61a5dad99ef5d6b4aa346f0a0 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 2 Dec 2022 11:26:39 +0100 Subject: [PATCH] fat: remove ->writepage ->writepage is a very inefficient method to write back data, and only used through write_cache_pages or a a fallback when no ->migrate_folio method is present. Set ->migrate_folio to the generic buffer_head based helper, and remove the ->writepage implementation. Link: https://lkml.kernel.org/r/20221202102644.770505-3-hch@lst.de Signed-off-by: Christoph Hellwig Acked-by: Johannes Weiner Signed-off-by: Andrew Morton --- fs/fat/inode.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/fs/fat/inode.c b/fs/fat/inode.c index 1cbcc4608dc7..d99b8549ec8f 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -194,11 +194,6 @@ static int fat_get_block(struct inode *inode, sector_t iblock, return 0; } -static int fat_writepage(struct page *page, struct writeback_control *wbc) -{ - return block_write_full_page(page, fat_get_block, wbc); -} - static int fat_writepages(struct address_space *mapping, struct writeback_control *wbc) { @@ -346,12 +341,12 @@ static const struct address_space_operations fat_aops = { .invalidate_folio = block_invalidate_folio, .read_folio = fat_read_folio, .readahead = fat_readahead, - .writepage = fat_writepage, .writepages = fat_writepages, .write_begin = fat_write_begin, .write_end = fat_write_end, .direct_IO = fat_direct_IO, - .bmap = _fat_bmap + .bmap = _fat_bmap, + .migrate_folio = buffer_migrate_folio, }; /*