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Message-Id: <20170601093245.29238-22-jack@suse.cz> Date: Thu, 1 Jun 2017 11:32:31 +0200 From: Jan Kara <jack@...e.cz> To: <linux-mm@...ck.org> Cc: Hugh Dickins <hughd@...gle.com>, David Howells <dhowells@...hat.com>, linux-afs@...ts.infradead.org, Ryusuke Konishi <konishi.ryusuke@....ntt.co.jp>, linux-nilfs@...r.kernel.org, Bob Peterson <rpeterso@...hat.com>, cluster-devel@...hat.com, Jaegeuk Kim <jaegeuk@...nel.org>, linux-f2fs-devel@...ts.sourceforge.net, tytso@....edu, linux-ext4@...r.kernel.org, Ilya Dryomov <idryomov@...il.com>, "Yan, Zheng" <zyan@...hat.com>, ceph-devel@...r.kernel.org, linux-btrfs@...r.kernel.org, David Sterba <dsterba@...e.com>, "Darrick J . Wong" <darrick.wong@...cle.com>, linux-xfs@...r.kernel.org, Nadia Yvette Chambers <nyc@...omorphy.com>, Jan Kara <jack@...e.cz> Subject: [PATCH 21/35] gfs2: Use pagevec_lookup_range_tag() We want only pages from given range in gfs2_write_cache_jdata(). Use pagevec_lookup_range_tag() instead of pagevec_lookup_tag() and remove unnecessary code. CC: Bob Peterson <rpeterso@...hat.com> CC: cluster-devel@...hat.com Signed-off-by: Jan Kara <jack@...e.cz> --- fs/gfs2/aops.c | 20 ++------------------ 1 file changed, 2 insertions(+), 18 deletions(-) diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c index ed7a2e252ad8..158ceb900ab5 100644 --- a/fs/gfs2/aops.c +++ b/fs/gfs2/aops.c @@ -268,22 +268,6 @@ static int gfs2_write_jdata_pagevec(struct address_space *mapping, for(i = 0; i < nr_pages; i++) { struct page *page = pvec->pages[i]; - /* - * At this point, the page may be truncated or - * invalidated (changing page->mapping to NULL), or - * even swizzled back from swapper_space to tmpfs file - * mapping. However, page->index will not change - * because we have a reference on the page. - */ - if (page->index > end) { - /* - * can't be range_cyclic (1st pass) because - * end == -1 in that case. - */ - ret = 1; - break; - } - *done_index = page->index; lock_page(page); @@ -401,8 +385,8 @@ static int gfs2_write_cache_jdata(struct address_space *mapping, tag_pages_for_writeback(mapping, index, end); done_index = index; while (!done && (index <= end)) { - nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, tag, - min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1); + nr_pages = pagevec_lookup_range_tag(&pvec, mapping, &index, end, + tag, PAGEVEC_SIZE); if (nr_pages == 0) break; -- 2.12.3
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