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@xxxxxxx>
---
mm/filemap.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/mm/filemap.c b/mm/filemap.c
index 56af68f6a375..8039b6bb9c27 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -390,18 +390,13 @@ static int __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);
if (TestClearPageError(page))
ret = -EIO;
--
2.12.3
