diff options
| author | Jan Kara <jack@suse.cz> | 2017-09-07 02:21:30 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-07 03:27:27 +0300 |
| commit | 2b85a6171d1370903d65cc8b84cefca26a16b5e4 (patch) | |
| tree | 24b7cdce37d4977ce46c8820d81af9e931fb2cb4 /fs | |
| parent | dec0da7b608253b004daea1da5bd82b3b292ba0f (diff) | |
| download | linux-2b85a6171d1370903d65cc8b84cefca26a16b5e4.tar.xz | |
ext4: use pagevec_lookup_range() in writeback code
Both occurences of pagevec_lookup() actually want only pages from a
given range. Use pagevec_lookup_range() for the lookup.
Link: http://lkml.kernel.org/r/20170726114704.7626-7-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/inode.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index b3ce1c6d9f23..6103ce0430df 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1720,13 +1720,13 @@ static void mpage_release_unused_pages(struct mpage_da_data *mpd, pagevec_init(&pvec, 0); while (index <= end) { - nr_pages = pagevec_lookup(&pvec, mapping, &index, PAGEVEC_SIZE); + nr_pages = pagevec_lookup_range(&pvec, mapping, &index, end, + PAGEVEC_SIZE); if (nr_pages == 0) break; for (i = 0; i < nr_pages; i++) { struct page *page = pvec.pages[i]; - if (page->index > end) - break; + BUG_ON(!PageLocked(page)); BUG_ON(PageWriteback(page)); if (invalidate) { @@ -2347,15 +2347,13 @@ static int mpage_map_and_submit_buffers(struct mpage_da_data *mpd) pagevec_init(&pvec, 0); while (start <= end) { - nr_pages = pagevec_lookup(&pvec, inode->i_mapping, &start, - PAGEVEC_SIZE); + nr_pages = pagevec_lookup_range(&pvec, inode->i_mapping, + &start, end, PAGEVEC_SIZE); if (nr_pages == 0) break; for (i = 0; i < nr_pages; i++) { struct page *page = pvec.pages[i]; - if (page->index > end) - break; bh = head = page_buffers(page); do { if (lblk < mpd->map.m_lblk) |