Simplify and optimize dev_to_zram() without walking the zram_devices
array.
Signed-off-by: Jiang Liu <jiang....@huawei.com>
---
drivers/staging/zram/zram_sysfs.c | 13 ++-----------
1 file changed, 2 insertions(+), 11 deletions(-)
diff --git a/drivers/staging/zram/zram_sysfs.c
b/drivers/staging/zram/zram_sysfs.c
index dc76a3d..e239d94 100644
--- a/drivers/staging/zram/zram_sysfs.c
+++ b/drivers/staging/zram/zram_sysfs.c
@@ -30,18 +30,9 @@ static u64 zram_stat64_read(struct zram *zram, u64 *v)
return val;
}
-static struct zram *dev_to_zram(struct device *dev)
+static inline struct zram *dev_to_zram(struct device *dev)
{
- int i;
- 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;
+ return (struct zram *)dev_to_disk(dev)->private_data;
}
static ssize_t disksize_show(struct device *dev,
--
1.8.1.2
--
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