diff options
| author | Jan Kara <jack@suse.cz> | 2017-11-15 17:35:05 -0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-07-08 17:36:36 -0700 |
| commit | 26778b87a0067fd32b061d1977000c17c4685ffd (patch) | |
| tree | 55ed56aba8c45190835fbf8ca1344f96a60f67a5 /mm/filemap.c | |
| parent | 94f1b99298bd5d82b855664f721a6f543617df4e (diff) | |
mm: use pagevec_lookup_range_tag() in __filemap_fdatawait_range()
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.
Link: http://lkml.kernel.org/r/20171009151359.31984-11-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index 4d16907c0684..1544865fa64a 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -344,19 +344,17 @@ static int __filemap_fdatawait_range(struct address_space *mapping, goto out; 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) { + while (index <= end) { unsigned i; + nr_pages = pagevec_lookup_range_tag(&pvec, mapping, &index, + end, PAGECACHE_TAG_WRITEBACK, PAGEVEC_SIZE); + if (!nr_pages) + break; + 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; |