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| author | weiping zhang <zhangweiping@didichuxing.com> | 2017-08-25 01:11:33 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-08-28 10:01:08 -0600 |
| commit | 235f8da119351ae583abfbbf577eb61a8b564203 (patch) | |
| tree | bd6c28a7d55348202b1820ce8720aac567293f84 /block/cfq-iosched.c | |
| parent | f5cb2d51524a1218bb0c5d8b234044e9104f7062 (diff) | |
| download | linux-235f8da119351ae583abfbbf577eb61a8b564203.tar.gz linux-235f8da119351ae583abfbbf577eb61a8b564203.tar.bz2 linux-235f8da119351ae583abfbbf577eb61a8b564203.zip | |
block, scheduler: convert xxx_var_store to void
The last parameter "count" never be used in xxx_var_store,
convert these functions to void.
Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/cfq-iosched.c')
| -rw-r--r-- | block/cfq-iosched.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 15cad965b138..9b86e9b352e9 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -4712,13 +4712,12 @@ cfq_var_show(unsigned int var, char *page) return sprintf(page, "%u\n", var); } -static ssize_t -cfq_var_store(unsigned int *var, const char *page, size_t count) +static void +cfq_var_store(unsigned int *var, const char *page) { char *p = (char *) page; *var = simple_strtoul(p, &p, 10); - return count; } #define SHOW_FUNCTION(__FUNC, __VAR, __CONV) \ @@ -4764,7 +4763,7 @@ static ssize_t __FUNC(struct elevator_queue *e, const char *page, size_t count) { \ struct cfq_data *cfqd = e->elevator_data; \ unsigned int __data; \ - int ret = cfq_var_store(&__data, (page), count); \ + cfq_var_store(&__data, (page)); \ if (__data < (MIN)) \ __data = (MIN); \ else if (__data > (MAX)) \ @@ -4773,7 +4772,7 @@ static ssize_t __FUNC(struct elevator_queue *e, const char *page, size_t count) *(__PTR) = (u64)__data * NSEC_PER_MSEC; \ else \ *(__PTR) = __data; \ - return ret; \ + return count; \ } STORE_FUNCTION(cfq_quantum_store, &cfqd->cfq_quantum, 1, UINT_MAX, 0); STORE_FUNCTION(cfq_fifo_expire_sync_store, &cfqd->cfq_fifo_expire[1], 1, @@ -4798,13 +4797,13 @@ static ssize_t __FUNC(struct elevator_queue *e, const char *page, size_t count) { \ struct cfq_data *cfqd = e->elevator_data; \ unsigned int __data; \ - int ret = cfq_var_store(&__data, (page), count); \ + cfq_var_store(&__data, (page)); \ if (__data < (MIN)) \ __data = (MIN); \ else if (__data > (MAX)) \ __data = (MAX); \ *(__PTR) = (u64)__data * NSEC_PER_USEC; \ - return ret; \ + return count; \ } USEC_STORE_FUNCTION(cfq_slice_idle_us_store, &cfqd->cfq_slice_idle, 0, UINT_MAX); USEC_STORE_FUNCTION(cfq_group_idle_us_store, &cfqd->cfq_group_idle, 0, UINT_MAX); |