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authorYueHaibing <yuehaibing@huawei.com>2018-09-14 04:35:11 +0300
committerJens Axboe <axboe@kernel.dk>2018-09-14 04:59:24 +0300
commitf8c0d7b16fd9b97036306c6af4094d51e9f72278 (patch)
tree73812cbf3a852b2d097a6534a69faef918cb5839 /block/blk-iolatency.c
parent798ef9e70110d0245797526c930beec7fded7b15 (diff)
downloadlinux-f8c0d7b16fd9b97036306c6af4094d51e9f72278.tar.xz
blk-iolatency: remove set but not used variables 'changed' and 'blkiolat'
Fixes gcc '-Wunused-but-set-variable' warning: block/blk-iolatency.c: In function 'scale_change': block/blk-iolatency.c:301:7: warning: variable 'changed' set but not used [-Wunused-but-set-variable] block/blk-iolatency.c: In function 'iolatency_set_limit': block/blk-iolatency.c:765:24: warning: variable 'blkiolat' set but not used [-Wunused-but-set-variable] Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-iolatency.c')
-rw-r--r--block/blk-iolatency.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c
index 19923f8a029d..a6f21527e6c7 100644
--- a/block/blk-iolatency.c
+++ b/block/blk-iolatency.c
@@ -298,7 +298,6 @@ static void scale_change(struct iolatency_grp *iolat, bool up)
unsigned long qd = blk_queue_depth(iolat->blkiolat->rqos.q);
unsigned long scale = scale_amount(qd, up);
unsigned long old = iolat->rq_depth.max_depth;
- bool changed = false;
if (old > qd)
old = qd;
@@ -308,7 +307,6 @@ static void scale_change(struct iolatency_grp *iolat, bool up)
return;
if (old < qd) {
- changed = true;
old += scale;
old = min(old, qd);
iolat->rq_depth.max_depth = old;
@@ -316,7 +314,6 @@ static void scale_change(struct iolatency_grp *iolat, bool up)
}
} else if (old > 1) {
old >>= 1;
- changed = true;
iolat->rq_depth.max_depth = max(old, 1UL);
}
}
@@ -761,7 +758,6 @@ static ssize_t iolatency_set_limit(struct kernfs_open_file *of, char *buf,
{
struct blkcg *blkcg = css_to_blkcg(of_css(of));
struct blkcg_gq *blkg;
- struct blk_iolatency *blkiolat;
struct blkg_conf_ctx ctx;
struct iolatency_grp *iolat;
char *p, *tok;
@@ -774,7 +770,6 @@ static ssize_t iolatency_set_limit(struct kernfs_open_file *of, char *buf,
return ret;
iolat = blkg_to_lat(ctx.blkg);
- blkiolat = iolat->blkiolat;
p = ctx.body;
ret = -EINVAL;