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authorJan Kara <jack@suse.cz>2017-11-15 17:34:41 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 18:21:03 -0800
commit0ed75fc8d288f414051a94743563ac8c2cb62b0c (patch)
tree9dba4298cae2ddda3db9a5b406b91299e48f2d95
parent4006f437f965a74a31ba407138d646fbd3f3a822 (diff)
ceph: use pagevec_lookup_range_tag()
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. Link: http://lkml.kernel.org/r/20171009151359.31984-4-jack@suse.cz Signed-off-by: Jan Kara <jack@suse.cz> Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com> Reviewed-by: "Yan, Zheng" <zyan@redhat.com> Cc: Ilya Dryomov <idryomov@gmail.com> Cc: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/ceph/addr.c19
1 files changed, 3 insertions, 16 deletions
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 4d622654bfbc..1af5cc899cb4 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -872,13 +872,10 @@ retry:
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++) {
@@ -896,16 +893,6 @@ get_more_pages:
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);