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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-03-23 21:29:04 -0400 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-04-01 13:45:33 -0400 |
| commit | 704528d895dd3e7b173e672116b4eb2b0a0fceb0 (patch) | |
| tree | 2fd71b29ddd4e61c18b5114f94bd5433bbbda00d /mm | |
| parent | ebf921a9fac38560e0fc3a4381e163a6969efd5a (diff) | |
| download | lwn-704528d895dd3e7b173e672116b4eb2b0a0fceb0.tar.gz lwn-704528d895dd3e7b173e672116b4eb2b0a0fceb0.zip | |
fs: Remove ->readpages address space operation
All filesystems have now been converted to use ->readahead, so
remove the ->readpages operation and fix all the comments that
used to refer to it.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/filemap.c | 2 | ||||
| -rw-r--r-- | mm/readahead.c | 15 |
2 files changed, 3 insertions, 14 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index 647d72bf23b6..d904cd7e4181 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2538,7 +2538,7 @@ static int filemap_create_folio(struct file *file, * the page cache as the locked folio would then be enough to * synchronize with hole punching. But there are code paths * such as filemap_update_page() filling in partially uptodate - * pages or ->readpages() that need to hold invalidate_lock + * pages or ->readahead() that need to hold invalidate_lock * while mapping blocks for IO so let's hold the lock here as * well to keep locking rules simple. */ diff --git a/mm/readahead.c b/mm/readahead.c index 9097af639beb..297bd0719cda 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -170,13 +170,6 @@ static void read_pages(struct readahead_control *rac, struct list_head *pages, unlock_page(page); put_page(page); } - } else if (aops->readpages) { - aops->readpages(rac->file, rac->mapping, pages, - readahead_count(rac)); - /* Clean up the remaining pages */ - put_pages_list(pages); - rac->_index += rac->_nr_pages; - rac->_nr_pages = 0; } else { while ((page = readahead_page(rac))) { aops->readpage(rac->file, page); @@ -253,10 +246,7 @@ void page_cache_ra_unbounded(struct readahead_control *ractl, folio = filemap_alloc_folio(gfp_mask, 0); if (!folio) break; - if (mapping->a_ops->readpages) { - folio->index = index + i; - list_add(&folio->lru, &page_pool); - } else if (filemap_add_folio(mapping, folio, index + i, + if (filemap_add_folio(mapping, folio, index + i, gfp_mask) < 0) { folio_put(folio); read_pages(ractl, &page_pool, true); @@ -318,8 +308,7 @@ void force_page_cache_ra(struct readahead_control *ractl, struct backing_dev_info *bdi = inode_to_bdi(mapping->host); unsigned long max_pages, index; - if (unlikely(!mapping->a_ops->readpage && !mapping->a_ops->readpages && - !mapping->a_ops->readahead)) + if (unlikely(!mapping->a_ops->readpage && !mapping->a_ops->readahead)) return; /* |