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nilfs2: use pagevec_lookup_range_tag() 

We want only pages from given range in nilfs_lookup_dirty_data_buffers().
Use pagevec_lookup_range_tag() instead of pagevec_lookup_tag() and
remove unnecessary code.

Link: http://lkml.kernel.org/r/20171009151359.31984-10-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Kara 2017-11-15 17:35:02 -08:00 committed by Linus Torvalds
parent d2bc5b3c67
commit 40f9c51326
1 changed files with 2 additions and 6 deletions
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8
fs/nilfs2/segment.c
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@ -711,18 +711,14 @@ static size_t nilfs_lookup_dirty_data_buffers(struct inode *inode,
pagevec_init(&pvec, 0);
repeat:
if (unlikely(index > last) ||
!pagevec_lookup_tag(&pvec, mapping, &index, PAGECACHE_TAG_DIRTY,
min_t(pgoff_t, last - index,
PAGEVEC_SIZE - 1) + 1))
!pagevec_lookup_range_tag(&pvec, mapping, &index, last,
PAGECACHE_TAG_DIRTY, PAGEVEC_SIZE))
return ndirties;
for (i = 0; i < pagevec_count(&pvec); i++) {
struct buffer_head *bh, *head;
struct page *page = pvec.pages[i];
if (unlikely(page->index > last))
break;
lock_page(page);
if (!page_has_buffers(page))
create_empty_buffers(page, i_blocksize(inode), 0);