+ filemap-convert-filemap_range_has_writeback-to-use-folios.patch added to mm-unstable branch

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The patch titled
     Subject: filemap: convert filemap_range_has_writeback() to use folios
has been added to the -mm mm-unstable branch.  Its filename is
     filemap-convert-filemap_range_has_writeback-to-use-folios.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/filemap-convert-filemap_range_has_writeback-to-use-folios.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: "Vishal Moola (Oracle)" <vishal.moola@xxxxxxxxx>
Subject: filemap: convert filemap_range_has_writeback() to use folios
Date: Mon, 5 Sep 2022 14:45:57 -0700

Removes 3 calls to compound_head().

Link: https://lkml.kernel.org/r/20220905214557.868606-1-vishal.moola@xxxxxxxxx
Signed-off-by: Vishal Moola (Oracle) <vishal.moola@xxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/filemap.c |   13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

--- a/mm/filemap.c~filemap-convert-filemap_range_has_writeback-to-use-folios
+++ a/mm/filemap.c
@@ -632,22 +632,23 @@ bool filemap_range_has_writeback(struct
 {
 	XA_STATE(xas, &mapping->i_pages, start_byte >> PAGE_SHIFT);
 	pgoff_t max = end_byte >> PAGE_SHIFT;
-	struct page *page;
+	struct folio *folio;
 
 	if (end_byte < start_byte)
 		return false;
 
 	rcu_read_lock();
-	xas_for_each(&xas, page, max) {
-		if (xas_retry(&xas, page))
+	xas_for_each(&xas, folio, max) {
+		if (xas_retry(&xas, folio))
 			continue;
-		if (xa_is_value(page))
+		if (xa_is_value(folio))
 			continue;
-		if (PageDirty(page) || PageLocked(page) || PageWriteback(page))
+		if (folio_test_dirty(folio) || folio_test_locked(folio) ||
+				folio_test_writeback(folio))
 			break;
 	}
 	rcu_read_unlock();
-	return page != NULL;
+	return folio != NULL;
 }
 EXPORT_SYMBOL_GPL(filemap_range_has_writeback);
 
_

Patches currently in -mm which might be from vishal.moola@xxxxxxxxx are

filemap-add-filemap_get_folios_contig.patch
btrfs-convert-__process_pages_contig-to-use-filemap_get_folios_contig.patch
btrfs-convert-end_compressed_writeback-to-use-filemap_get_folios.patch
btrfs-convert-process_page_range-to-use-filemap_get_folios_contig.patch
nilfs2-convert-nilfs_find_uncommited_extent-to-use-filemap_get_folios_contig.patch
ramfs-convert-ramfs_nommu_get_unmapped_area-to-use-filemap_get_folios_contig.patch
filemap-remove-find_get_pages_contig.patch
filemap-convert-filemap_range_has_writeback-to-use-folios.patch




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