diff mbox

[10/15] mm: Use pagevec_lookup_range_tag() in __filemap_fdatawait_range()

Message ID 20170914131819.26266-11-jack@suse.cz (mailing list archive)
State New, archived
Headers show

Commit Message

Jan Kara Sept. 14, 2017, 1:18 p.m. UTC 
Use pagevec_lookup_range_tag() in __filemap_fdatawait_range() as it is
interested only in pages from given range. Remove unnecessary code
resulting from this.

Signed-off-by: Jan Kara <jack@suse.cz>
---
 mm/filemap.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)
diff mbox

Patch

diff --git a/mm/filemap.c b/mm/filemap.c
index fe20329c83cd..479fc54b7cd1 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -421,18 +421,13 @@  static void __filemap_fdatawait_range(struct address_space *mapping,
 
 	pagevec_init(&pvec, 0);
 	while ((index <= end) &&
-			(nr_pages = pagevec_lookup_tag(&pvec, mapping, &index,
-			PAGECACHE_TAG_WRITEBACK,
-			min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1)) != 0) {
+			(nr_pages = pagevec_lookup_range_tag(&pvec, mapping,
+			&index, end, PAGECACHE_TAG_WRITEBACK, PAGEVEC_SIZE))) {
 		unsigned i;
 
 		for (i = 0; i < nr_pages; i++) {
 			struct page *page = pvec.pages[i];
 
-			/* until radix tree lookup accepts end_index */
-			if (page->index > end)
-				continue;
-
 			wait_on_page_writeback(page);
 			ClearPageError(page);
 		}