diff options
Diffstat (limited to 'mm/backing-dev.c')
| -rw-r--r-- | mm/backing-dev.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 502517492258..37d9edcd14cf 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -180,7 +180,8 @@ static ssize_t name##_show(struct device *dev, \ struct backing_dev_info *bdi = dev_get_drvdata(dev); \ \ return snprintf(page, PAGE_SIZE-1, "%lld\n", (long long)expr); \ -} +} \ +static DEVICE_ATTR_RW(name); BDI_SHOW(read_ahead_kb, K(bdi->ra_pages)) @@ -231,16 +232,16 @@ static ssize_t stable_pages_required_show(struct device *dev, return snprintf(page, PAGE_SIZE-1, "%d\n", bdi_cap_stable_pages_required(bdi) ? 1 : 0); } +static DEVICE_ATTR_RO(stable_pages_required); -#define __ATTR_RW(attr) __ATTR(attr, 0644, attr##_show, attr##_store) - -static struct device_attribute bdi_dev_attrs[] = { - __ATTR_RW(read_ahead_kb), - __ATTR_RW(min_ratio), - __ATTR_RW(max_ratio), - __ATTR_RO(stable_pages_required), - __ATTR_NULL, +static struct attribute *bdi_dev_attrs[] = { + &dev_attr_read_ahead_kb.attr, + &dev_attr_min_ratio.attr, + &dev_attr_max_ratio.attr, + &dev_attr_stable_pages_required.attr, + NULL, }; +ATTRIBUTE_GROUPS(bdi_dev); static __init int bdi_class_init(void) { @@ -248,7 +249,7 @@ static __init int bdi_class_init(void) if (IS_ERR(bdi_class)) return PTR_ERR(bdi_class); - bdi_class->dev_attrs = bdi_dev_attrs; + bdi_class->dev_groups = bdi_dev_groups; bdi_debug_init(); return 0; } @@ -515,7 +516,6 @@ EXPORT_SYMBOL(bdi_destroy); int bdi_setup_and_register(struct backing_dev_info *bdi, char *name, unsigned int cap) { - char tmp[32]; int err; bdi->name = name; @@ -524,8 +524,8 @@ int bdi_setup_and_register(struct backing_dev_info *bdi, char *name, if (err) return err; - sprintf(tmp, "%.28s%s", name, "-%d"); - err = bdi_register(bdi, NULL, tmp, atomic_long_inc_return(&bdi_seq)); + err = bdi_register(bdi, NULL, "%.28s-%ld", name, + atomic_long_inc_return(&bdi_seq)); if (err) { bdi_destroy(bdi); return err; |