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authorYan, Zheng <zyan@redhat.com>2017-08-31 19:20:40 +0800
committerIlya Dryomov <idryomov@gmail.com>2017-09-06 19:56:57 +0200
commit0e5ecac7168366500af1fa9a70fa9ce573f891f3 (patch)
tree53728eb003165e571eec58e897874caaaa99465f /fs/ceph
parent0713e5f24b7deb88579dc312cf818b1a0809f02e (diff)
downloadlinux-0e5ecac7168366500af1fa9a70fa9ce573f891f3.tar.bz2
ceph: cleanup local variables in ceph_writepages_start()
Remove two variables and define variables of same type together. Signed-off-by: "Yan, Zheng" <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph')
-rw-r--r--fs/ceph/addr.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 5ca887bb5cae..221df531b0c3 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -784,7 +784,6 @@ static int ceph_writepages_start(struct address_space *mapping,
pgoff_t index, start, end;
int range_whole = 0;
int should_loop = 1;
- pgoff_t max_pages = 0, max_pages_ever = 0;
struct ceph_snap_context *snapc = NULL, *last_snapc = NULL, *pgsnapc;
struct pagevec pvec;
int done = 0;
@@ -808,7 +807,6 @@ static int ceph_writepages_start(struct address_space *mapping,
}
if (fsc->mount_options->wsize < wsize)
wsize = fsc->mount_options->wsize;
- max_pages_ever = wsize >> PAGE_SHIFT;
pagevec_init(&pvec, 0);
@@ -850,26 +848,25 @@ retry:
last_snapc = snapc;
while (!done && index <= end) {
- unsigned i;
- pgoff_t strip_unit_end = 0;
int num_ops = 0, op_idx;
- int pvec_pages, locked_pages = 0;
+ unsigned i, pvec_pages, max_pages, locked_pages = 0;
struct page **pages = NULL, **data_pages;
mempool_t *pool = NULL; /* Becomes non-null if mempool used */
struct page *page;
- int want;
+ pgoff_t strip_unit_end = 0;
u64 offset = 0, len = 0;
- max_pages = max_pages_ever;
+ max_pages = wsize >> PAGE_SHIFT;
get_more_pages:
- want = min(end - index,
- min((pgoff_t)PAGEVEC_SIZE,
- max_pages - (pgoff_t)locked_pages) - 1)
- + 1;
+ 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,
- want);
+ pvec_pages);
dout("pagevec_lookup_tag got %d\n", pvec_pages);
if (!pvec_pages && !locked_pages)
break;