The patch titled
Subject: btrfs: use pagevec_lookup_range_tag()
has been added to the -mm tree. Its filename is
btrfs-use-pagevec_lookup_range_tag.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/btrfs-use-pagevec_lookup_range_tag.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/btrfs-use-pagevec_lookup_range_tag.patch
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------------------------------------------------------
From: Jan Kara <jack@xxxxxxx>
Subject: btrfs: use pagevec_lookup_range_tag()
We want only pages from given range in btree_write_cache_pages() and
extent_write_cache_pages(). Use pagevec_lookup_range_tag() instead of
pagevec_lookup_tag() and remove unnecessary code.
Link: http://lkml.kernel.org/r/20171009151359.31984-3-jack@xxxxxxx
Signed-off-by: Jan Kara <jack@xxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
Reviewed-by: Daniel Jordan <daniel.m.jordan@xxxxxxxxxx>
Cc: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/btrfs/extent_io.c | 19 ++++---------------
1 file changed, 4 insertions(+), 15 deletions(-)
diff -puN fs/btrfs/extent_io.c~btrfs-use-pagevec_lookup_range_tag fs/btrfs/extent_io.c
--- a/fs/btrfs/extent_io.c~btrfs-use-pagevec_lookup_range_tag
+++ a/fs/btrfs/extent_io.c
@@ -3818,8 +3818,8 @@ retry:
if (wbc->sync_mode == WB_SYNC_ALL)
tag_pages_for_writeback(mapping, index, end);
while (!done && !nr_to_write_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))) {
unsigned i;
scanned = 1;
@@ -3829,11 +3829,6 @@ retry:
if (!PagePrivate(page))
continue;
- if (!wbc->range_cyclic && page->index > end) {
- done = 1;
- break;
- }
-
spin_lock(&mapping->private_lock);
if (!PagePrivate(page)) {
spin_unlock(&mapping->private_lock);
@@ -3965,8 +3960,8 @@ retry:
tag_pages_for_writeback(mapping, index, end);
done_index = index;
while (!done && !nr_to_write_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))) {
unsigned i;
scanned = 1;
@@ -3990,12 +3985,6 @@ retry:
unlock_page(page);
continue;
}
-
- if (!wbc->range_cyclic && page->index > end) {
- done = 1;
- unlock_page(page);
- continue;
- }
if (wbc->sync_mode != WB_SYNC_NONE) {
if (PageWriteback(page))
_
Patches currently in -mm which might be from jack@xxxxxxx are
mm-readahead-increase-maximum-readahead-window.patch
mm-implement-find_get_pages_range_tag.patch
btrfs-use-pagevec_lookup_range_tag.patch
ceph-use-pagevec_lookup_range_tag.patch
ext4-use-pagevec_lookup_range_tag.patch
f2fs-use-pagevec_lookup_range_tag.patch
f2fs-simplify-page-iteration-loops.patch
f2fs-use-find_get_pages_tag-for-looking-up-single-page.patch
gfs2-use-pagevec_lookup_range_tag.patch
nilfs2-use-pagevec_lookup_range_tag.patch
mm-use-pagevec_lookup_range_tag-in-__filemap_fdatawait_range.patch
mm-use-pagevec_lookup_range_tag-in-write_cache_pages.patch
mm-add-variant-of-pagevec_lookup_range_tag-taking-number-of-pages.patch
ceph-use-pagevec_lookup_range_nr_tag.patch
mm-remove-nr_pages-argument-from-pagevec_lookup_range_tag.patch
afs-use-find_get_pages_range_tag.patch
cifs-use-find_get_pages_range_tag.patch
--
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