From: Jan Kara <jack@suse.cz>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org,
Jan Kara <jack@suse.cz>, Ilya Dryomov <idryomov@gmail.com>,
"Yan, Zheng" <zyan@redhat.com>,
ceph-devel@vger.kernel.org
Subject: [PATCH 03/15] ceph: Use pagevec_lookup_range_tag()
Date: Wed, 27 Sep 2017 18:03:22 +0200 [thread overview]
Message-ID: <20170927160334.29513-4-jack@suse.cz> (raw)
In-Reply-To: <20170927160334.29513-1-jack@suse.cz>
We want only pages from given range in ceph_writepages_start(). Use
pagevec_lookup_range_tag() instead of pagevec_lookup_tag() and remove
unnecessary code.
CC: Ilya Dryomov <idryomov@gmail.com>
CC: "Yan, Zheng" <zyan@redhat.com>
CC: ceph-devel@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
---
fs/ceph/addr.c | 19 +++----------------
1 file changed, 3 insertions(+), 16 deletions(-)
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index b3e3edc09d80..e57e9d37bf2d 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -871,13 +871,10 @@ static int ceph_writepages_start(struct address_space *mapping,
get_more_pages:
pvec_pages = min_t(unsigned, PAGEVEC_SIZE,
max_pages - locked_pages);
- if (end - index < (u64)(pvec_pages - 1))
- pvec_pages = (unsigned)(end - index) + 1;
-
- pvec_pages = pagevec_lookup_tag(&pvec, mapping, &index,
- PAGECACHE_TAG_DIRTY,
+ pvec_pages = pagevec_lookup_range_tag(&pvec, mapping, &index,
+ end, PAGECACHE_TAG_DIRTY,
pvec_pages);
- dout("pagevec_lookup_tag got %d\n", pvec_pages);
+ dout("pagevec_lookup_range_tag got %d\n", pvec_pages);
if (!pvec_pages && !locked_pages)
break;
for (i = 0; i < pvec_pages && locked_pages < max_pages; i++) {
@@ -895,16 +892,6 @@ static int ceph_writepages_start(struct address_space *mapping,
unlock_page(page);
continue;
}
- if (page->index > end) {
- dout("end of range %p\n", page);
- /* can't be range_cyclic (1st pass) because
- * end == -1 in that case. */
- stop = true;
- if (ceph_wbc.head_snapc)
- done = true;
- unlock_page(page);
- break;
- }
if (strip_unit_end && (page->index > strip_unit_end)) {
dout("end of strip unit %p\n", page);
unlock_page(page);
--
2.12.3
--
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next prev parent reply other threads:[~2017-09-27 16:03 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-27 16:03 [PATCH 0/15 v2] Ranged pagevec tagged lookup Jan Kara
2017-09-27 16:03 ` [PATCH 01/15] mm: Implement find_get_pages_range_tag() Jan Kara
2017-09-27 16:03 ` [PATCH 02/15] btrfs: Use pagevec_lookup_range_tag() Jan Kara
2017-09-27 16:03 ` Jan Kara [this message]
2017-09-29 1:20 ` [PATCH 03/15] ceph: " Yan, Zheng
2017-09-27 16:03 ` [PATCH 04/15] ext4: " Jan Kara
2017-09-27 16:03 ` [PATCH 05/15] f2fs: " Jan Kara
2017-09-27 16:03 ` [PATCH 06/15] f2fs: Simplify page iteration loops Jan Kara
2017-09-27 16:03 ` [PATCH 07/15] f2fs: Use find_get_pages_tag() for looking up single page Jan Kara
2017-09-27 16:03 ` [PATCH 08/15] gfs2: Use pagevec_lookup_range_tag() Jan Kara
2017-09-27 16:03 ` [PATCH 09/15] nilfs2: " Jan Kara
2017-09-28 1:40 ` Ryusuke Konishi
2017-09-27 16:03 ` [PATCH 10/15] mm: Use pagevec_lookup_range_tag() in __filemap_fdatawait_range() Jan Kara
2017-09-27 22:19 ` Dave Chinner
2017-10-03 8:38 ` Jan Kara
2017-09-27 16:03 ` [PATCH 11/15] mm: Use pagevec_lookup_range_tag() in write_cache_pages() Jan Kara
2017-09-27 16:03 ` [PATCH 12/15] mm: Add variant of pagevec_lookup_range_tag() taking number of pages Jan Kara
2017-09-29 21:45 ` Daniel Jordan
2017-10-03 8:51 ` Jan Kara
2017-09-27 16:03 ` [PATCH 13/15] ceph: Use pagevec_lookup_range_nr_tag() Jan Kara
2017-09-27 16:03 ` [PATCH 14/15] mm: Remove nr_pages argument from pagevec_lookup_{,range}_tag() Jan Kara
2017-09-29 21:46 ` Daniel Jordan
2017-10-03 9:07 ` Jan Kara
2017-09-27 16:03 ` [PATCH 15/15] afs: Use find_get_pages_range_tag() Jan Kara
2017-09-29 21:46 ` Daniel Jordan
2017-10-03 12:03 ` Jan Kara
-- strict thread matches above, loose matches on Subject: below --
2017-09-14 13:18 [PATCH 0/15 v1] Ranged pagevec tagged lookup Jan Kara
2017-09-14 13:18 ` [PATCH 03/15] ceph: Use pagevec_lookup_range_tag() Jan Kara
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