The patch titled
Subject: gfs2: use pagevec_lookup_range_tag()
has been added to the -mm tree. Its filename is
gfs2-use-pagevec_lookup_range_tag.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/gfs2-use-pagevec_lookup_range_tag.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/gfs2-use-pagevec_lookup_range_tag.patch
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------------------------------------------------------
From: Jan Kara <jack@xxxxxxx>
Subject: 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.
Link: http://lkml.kernel.org/r/20171009151359.31984-9-jack@xxxxxxx
Signed-off-by: Jan Kara <jack@xxxxxxx>
Reviewed-by: Daniel Jordan <daniel.m.jordan@xxxxxxxxxx>
Cc: Bob Peterson <rpeterso@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/gfs2/aops.c | 20 ++------------------
1 file changed, 2 insertions(+), 18 deletions(-)
diff -puN fs/gfs2/aops.c~gfs2-use-pagevec_lookup_range_tag fs/gfs2/aops.c
--- a/fs/gfs2/aops.c~gfs2-use-pagevec_lookup_range_tag
+++ a/fs/gfs2/aops.c
@@ -280,22 +280,6 @@ static int gfs2_write_jdata_pagevec(stru
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);
@@ -413,8 +397,8 @@ retry:
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;
_
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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