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| author | T.J. Alumbaugh <talumbau@google.com> | 2023-02-14 04:54:44 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-03-29 01:20:07 +0200 |
| commit | 9a52b2f32a0942047348b30f866b846da5fcf4e3 (patch) | |
| tree | ae64c43df91c3c6d28bc8f9e3317fb8f9f645fda /mm/vmscan.c | |
| parent | x86/mm/pat: clear VM_PAT if copy_p4d_range failed (diff) | |
| download | linux-9a52b2f32a0942047348b30f866b846da5fcf4e3.tar.xz linux-9a52b2f32a0942047348b30f866b846da5fcf4e3.zip | |
mm: multi-gen LRU: clean up sysfs code
This patch cleans up the sysfs code. Specifically,
1. use sysfs_emit(),
2. use __ATTR_RW(), and
3. constify multi-gen LRU struct attribute_group.
Link: https://lkml.kernel.org/r/20230214035445.1250139-1-talumbau@google.com
Signed-off-by: T.J. Alumbaugh <talumbau@google.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 9c1c5e8b24b8..7ac7d1ec13e0 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -5663,14 +5663,14 @@ unlock: * sysfs interface ******************************************************************************/ -static ssize_t show_min_ttl(struct kobject *kobj, struct kobj_attribute *attr, char *buf) +static ssize_t min_ttl_ms_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { - return sprintf(buf, "%u\n", jiffies_to_msecs(READ_ONCE(lru_gen_min_ttl))); + return sysfs_emit(buf, "%u\n", jiffies_to_msecs(READ_ONCE(lru_gen_min_ttl))); } /* see Documentation/admin-guide/mm/multigen_lru.rst for details */ -static ssize_t store_min_ttl(struct kobject *kobj, struct kobj_attribute *attr, - const char *buf, size_t len) +static ssize_t min_ttl_ms_store(struct kobject *kobj, struct kobj_attribute *attr, + const char *buf, size_t len) { unsigned int msecs; @@ -5682,11 +5682,9 @@ static ssize_t store_min_ttl(struct kobject *kobj, struct kobj_attribute *attr, return len; } -static struct kobj_attribute lru_gen_min_ttl_attr = __ATTR( - min_ttl_ms, 0644, show_min_ttl, store_min_ttl -); +static struct kobj_attribute lru_gen_min_ttl_attr = __ATTR_RW(min_ttl_ms); -static ssize_t show_enabled(struct kobject *kobj, struct kobj_attribute *attr, char *buf) +static ssize_t enabled_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { unsigned int caps = 0; @@ -5703,7 +5701,7 @@ static ssize_t show_enabled(struct kobject *kobj, struct kobj_attribute *attr, c } /* see Documentation/admin-guide/mm/multigen_lru.rst for details */ -static ssize_t store_enabled(struct kobject *kobj, struct kobj_attribute *attr, +static ssize_t enabled_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t len) { int i; @@ -5730,9 +5728,7 @@ static ssize_t store_enabled(struct kobject *kobj, struct kobj_attribute *attr, return len; } -static struct kobj_attribute lru_gen_enabled_attr = __ATTR( - enabled, 0644, show_enabled, store_enabled -); +static struct kobj_attribute lru_gen_enabled_attr = __ATTR_RW(enabled); static struct attribute *lru_gen_attrs[] = { &lru_gen_min_ttl_attr.attr, @@ -5740,7 +5736,7 @@ static struct attribute *lru_gen_attrs[] = { NULL }; -static struct attribute_group lru_gen_attr_group = { +static const struct attribute_group lru_gen_attr_group = { .name = "lru_gen", .attrs = lru_gen_attrs, }; |