[PATCH 08/21] iomap: Add iomap_invalidate_folio
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Date: 2021-11-01 20:57:03
Also in:
linux-block, linux-fsdevel, lkml
Subsystem:
filesystems (vfs and infrastructure), filesystems [iomap], the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
Keep iomap_invalidatepage around as a wrapper for use in address_space operations. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> --- fs/iomap/buffered-io.c | 20 ++++++++++++-------- include/linux/iomap.h | 1 + 2 files changed, 13 insertions(+), 8 deletions(-)
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index a6b64a1ad468..e9a60520e769 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c@@ -468,23 +468,27 @@ iomap_releasepage(struct page *page, gfp_t gfp_mask) } EXPORT_SYMBOL_GPL(iomap_releasepage); -void -iomap_invalidatepage(struct page *page, unsigned int offset, unsigned int len) +void iomap_invalidate_folio(struct folio *folio, size_t offset, size_t len) { - struct folio *folio = page_folio(page); - - trace_iomap_invalidatepage(page->mapping->host, offset, len); + trace_iomap_invalidatepage(folio->mapping->host, offset, len); /* * If we're invalidating the entire page, clear the dirty state from it * and release it to avoid unnecessary buildup of the LRU. */ - if (offset == 0 && len == PAGE_SIZE) { - WARN_ON_ONCE(PageWriteback(page)); - cancel_dirty_page(page); + if (offset == 0 && len == folio_size(folio)) { + WARN_ON_ONCE(folio_test_writeback(folio)); + folio_cancel_dirty(folio); iomap_page_release(folio); } } +EXPORT_SYMBOL_GPL(iomap_invalidate_folio); + +void iomap_invalidatepage(struct page *page, unsigned int offset, + unsigned int len) +{ + iomap_invalidate_folio(page_folio(page), offset, len); +} EXPORT_SYMBOL_GPL(iomap_invalidatepage); #ifdef CONFIG_MIGRATION
diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index 63f4ea4dac9b..91de58ca09fc 100644
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h@@ -225,6 +225,7 @@ void iomap_readahead(struct readahead_control *, const struct iomap_ops *ops); int iomap_is_partially_uptodate(struct page *page, unsigned long from, unsigned long count); int iomap_releasepage(struct page *page, gfp_t gfp_mask); +void iomap_invalidate_folio(struct folio *folio, size_t offset, size_t len); void iomap_invalidatepage(struct page *page, unsigned int offset, unsigned int len); #ifdef CONFIG_MIGRATION
--
2.33.0