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Possibility to reset SGV pools statistic added

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1261 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2009-10-23 17:55:37 +00:00
parent 36104c26c2
commit 7009a257f0
3 changed files with 52 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
scst/src/scst_mem.c
+44
View File
@@ -1800,6 +1800,35 @@ ssize_t sgv_sysfs_stat_show(struct kobject *kobj,
return res;
}
ssize_t sgv_sysfs_stat_reset(struct kobject *kobj,
struct kobj_attribute *attr, const char *buf, size_t count)
{
struct sgv_pool *pool;
int i;
TRACE_ENTRY();
pool = container_of(kobj, struct sgv_pool, sgv_kobj);
for (i = 0; i < SGV_POOL_ELEMENTS; i++) {
atomic_set(&pool->cache_acc[i].hit_alloc, 0);
atomic_set(&pool->cache_acc[i].total_alloc, 0);
atomic_set(&pool->cache_acc[i].merged, 0);
}
atomic_set(&pool->big_pages, 0);
atomic_set(&pool->big_merged, 0);
atomic_set(&pool->big_alloc, 0);
atomic_set(&pool->other_pages, 0);
atomic_set(&pool->other_merged, 0);
atomic_set(&pool->other_alloc, 0);
PRINT_INFO("Statistics for SGV pool %s resetted", pool->name);
TRACE_EXIT_RES(count);
return count;
}
ssize_t sgv_sysfs_global_stat_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
@@ -1829,4 +1858,19 @@ ssize_t sgv_sysfs_global_stat_show(struct kobject *kobj,
return res;
}
ssize_t sgv_sysfs_global_stat_reset(struct kobject *kobj,
struct kobj_attribute *attr, const char *buf, size_t count)
{
TRACE_ENTRY();
atomic_set(&sgv_releases_on_hiwmk, 0);
atomic_set(&sgv_releases_on_hiwmk_failed, 0);
atomic_set(&sgv_other_total_alloc, 0);
PRINT_INFO("%s", "Global SGV pool statistics resetted");
TRACE_EXIT_RES(count);
return count;
}
#endif /* CONFIG_SCST_PROC */
scst/src/scst_mem.h
+4
View File
@@ -133,8 +133,12 @@ int sgv_procinfo_show(struct seq_file *seq, void *v);
#else
ssize_t sgv_sysfs_stat_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf);
ssize_t sgv_sysfs_stat_reset(struct kobject *kobj,
struct kobj_attribute *attr, const char *buf, size_t count);
ssize_t sgv_sysfs_global_stat_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf);
ssize_t sgv_sysfs_global_stat_reset(struct kobject *kobj,
struct kobj_attribute *attr, const char *buf, size_t count);
#endif
void scst_sgv_pool_use_norm(struct scst_tgt_dev *tgt_dev);
scst/src/scst_sysfs.c
+4 -2
View File
@@ -1045,7 +1045,8 @@ out_remove_acg_dev:
*/
static struct kobj_attribute sgv_stat_attr =
__ATTR(stats, S_IRUGO, sgv_sysfs_stat_show, NULL);
__ATTR(stats, S_IRUGO | S_IWUSR, sgv_sysfs_stat_show,
sgv_sysfs_stat_reset);
static struct attribute *sgv_attrs[] = {
&sgv_stat_attr.attr,
@@ -1104,7 +1105,8 @@ void scst_sgv_sysfs_put(struct sgv_pool *pool)
}
static struct kobj_attribute sgv_global_stat_attr =
__ATTR(global_stats, S_IRUGO, sgv_sysfs_global_stat_show, NULL);
__ATTR(global_stats, S_IRUGO | S_IWUSR, sgv_sysfs_global_stat_show,
sgv_sysfs_global_stat_reset);
static struct attribute *sgv_default_attrs[] = {
&sgv_global_stat_attr.attr,