Commit 80de574d authored by Jiang Liu's avatar Jiang Liu Committed by Greg Kroah-Hartman

zram: simplify and optimize dev_to_zram()

Simplify and optimize dev_to_zram() without walking the zram_devices
array.
Signed-off-by: default avatarJiang Liu <jiang.liu@huawei.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5863e10b
...@@ -30,18 +30,9 @@ static u64 zram_stat64_read(struct zram *zram, u64 *v) ...@@ -30,18 +30,9 @@ static u64 zram_stat64_read(struct zram *zram, u64 *v)
return val; return val;
} }
static struct zram *dev_to_zram(struct device *dev) static inline struct zram *dev_to_zram(struct device *dev)
{ {
int i; return (struct zram *)dev_to_disk(dev)->private_data;
struct zram *zram = NULL;
for (i = 0; i < zram_get_num_devices(); i++) {
zram = &zram_devices[i];
if (disk_to_dev(zram->disk) == dev)
break;
}
return zram;
} }
static ssize_t disksize_show(struct device *dev, static ssize_t disksize_show(struct device *dev,
......
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