diff options
Diffstat (limited to 'fs/orangefs/orangefs-sysfs.c')
| -rw-r--r-- | fs/orangefs/orangefs-sysfs.c | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/fs/orangefs/orangefs-sysfs.c b/fs/orangefs/orangefs-sysfs.c index a799546a67f7..afd2f523b283 100644 --- a/fs/orangefs/orangefs-sysfs.c +++ b/fs/orangefs/orangefs-sysfs.c @@ -91,6 +91,13 @@ * Description: * Readahead cache buffer count and size. * + * What: /sys/fs/orangefs/readahead_readcnt + * Date: Jan 2017 + * Contact: Martin Brandenburg <martin@omnibond.com> + * Description: + * Number of buffers (in multiples of readahead_size) + * which can be read ahead for a single file at once. + * * What: /sys/fs/orangefs/acache/... * Date: Jun 2015 * Contact: Martin Brandenburg <martin@omnibond.com> @@ -329,7 +336,8 @@ static ssize_t sysfs_service_op_show(struct kobject *kobj, if (!(orangefs_features & ORANGEFS_FEATURE_READAHEAD) && (!strcmp(attr->attr.name, "readahead_count") || !strcmp(attr->attr.name, "readahead_size") || - !strcmp(attr->attr.name, "readahead_count_size"))) { + !strcmp(attr->attr.name, "readahead_count_size") || + !strcmp(attr->attr.name, "readahead_readcnt"))) { rc = -EINVAL; goto out; } @@ -360,6 +368,11 @@ static ssize_t sysfs_service_op_show(struct kobject *kobj, "readahead_count_size")) new_op->upcall.req.param.op = ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE; + + else if (!strcmp(attr->attr.name, + "readahead_readcnt")) + new_op->upcall.req.param.op = + ORANGEFS_PARAM_REQUEST_OP_READAHEAD_READCNT; } else if (!strcmp(kobj->name, ACACHE_KOBJ_ID)) { if (!strcmp(attr->attr.name, "timeout_msecs")) new_op->upcall.req.param.op = @@ -542,7 +555,8 @@ static ssize_t sysfs_service_op_store(struct kobject *kobj, if (!(orangefs_features & ORANGEFS_FEATURE_READAHEAD) && (!strcmp(attr->attr.name, "readahead_count") || !strcmp(attr->attr.name, "readahead_size") || - !strcmp(attr->attr.name, "readahead_count_size"))) { + !strcmp(attr->attr.name, "readahead_count_size") || + !strcmp(attr->attr.name, "readahead_readcnt"))) { rc = -EINVAL; goto out; } @@ -610,10 +624,10 @@ static ssize_t sysfs_service_op_store(struct kobject *kobj, new_op->upcall.req.param.u.value32[1] = val2; goto value_set; } else if (!strcmp(attr->attr.name, - "perf_counter_reset")) { - if ((val > 0)) { + "readahead_readcnt")) { + if ((val >= 0)) { new_op->upcall.req.param.op = - ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE; + ORANGEFS_PARAM_REQUEST_OP_READAHEAD_READCNT; } else { rc = 0; goto out; @@ -821,6 +835,10 @@ static struct orangefs_attribute readahead_count_size_attribute = __ATTR(readahead_count_size, 0664, sysfs_service_op_show, sysfs_service_op_store); +static struct orangefs_attribute readahead_readcnt_attribute = + __ATTR(readahead_readcnt, 0664, sysfs_service_op_show, + sysfs_service_op_store); + static struct orangefs_attribute perf_counter_reset_attribute = __ATTR(perf_counter_reset, 0664, @@ -847,6 +865,7 @@ static struct attribute *orangefs_default_attrs[] = { &readahead_count_attribute.attr, &readahead_size_attribute.attr, &readahead_count_size_attribute.attr, + &readahead_readcnt_attribute.attr, &perf_counter_reset_attribute.attr, &perf_history_size_attribute.attr, &perf_time_interval_secs_attribute.attr, |