orangefs: add readahead count and size to sysfs (4d20a756) · Commits · e / devices / android_kernel_oneplus_sm8150

fs/orangefs/orangefs-sysfs.c

+115 −8

Original line number	Diff line number	Diff line
		@@ -73,6 +73,24 @@
		* Description:
		* Time getattr is valid in milliseconds.
		*
		* What: /sys/fs/orangefs/readahead_count
		* Date: Aug 2016
		* Contact: Martin Brandenburg <martin@omnibond.com>
		* Description:
		* Readahead cache buffer count.
		*
		* What: /sys/fs/orangefs/readahead_size
		* Date: Aug 2016
		* Contact: Martin Brandenburg <martin@omnibond.com>
		* Description:
		* Readahead cache buffer size.
		*
		* What: /sys/fs/orangefs/readahead_count_size
		* Date: Aug 2016
		* Contact: Martin Brandenburg <martin@omnibond.com>
		* Description:
		* Readahead cache buffer count and size.
		*
		* What: /sys/fs/orangefs/acache/...
		* Date: Jun 2015
		* Contact: Martin Brandenburg <martin@omnibond.com>
		@@ -836,6 +854,20 @@ static int sysfs_service_op_show(char kobj_id, char buf, void *attr)
		new_op->upcall.req.param.op =
		ORANGEFS_PARAM_REQUEST_OP_PERF_RESET;

		else if (!strcmp(orangefs_attr->attr.name,
		"readahead_count"))
		new_op->upcall.req.param.op =
		ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT;

		else if (!strcmp(orangefs_attr->attr.name,
		"readahead_size"))
		new_op->upcall.req.param.op =
		ORANGEFS_PARAM_REQUEST_OP_READAHEAD_SIZE;

		else if (!strcmp(orangefs_attr->attr.name,
		"readahead_count_size"))
		new_op->upcall.req.param.op =
		ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE;
		} else if (!strcmp(kobj_id, ACACHE_KOBJ_ID)) {
		acache_attr = (struct acache_orangefs_attribute *)attr;

		@@ -949,8 +981,17 @@ static int sysfs_service_op_show(char kobj_id, char buf, void *attr)
		out:
		if (!rc) {
		if (strcmp(kobj_id, PC_KOBJ_ID)) {
		if (new_op->upcall.req.param.op ==
		ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE) {
		rc = scnprintf(buf, PAGE_SIZE, "%d %d\n",
		(int)new_op->downcall.resp.param.u.
		value32[0],
		(int)new_op->downcall.resp.param.u.
		value32[1]);
		} else {
		rc = scnprintf(buf, PAGE_SIZE, "%d\n",
		(int)new_op->downcall.resp.param.u.value64);
		}
		} else {
		rc = scnprintf(
		buf,
		@@ -1077,11 +1118,18 @@ static int sysfs_service_op_store(char kobj_id, const char buf, void *attr)
		}

		/*
		* The value we want to send back to userspace is in buf.
		* The value we want to send back to userspace is in buf, unless this
		* there are two parameters, which is specially handled below.
		*/
		if (strcmp(kobj_id, ORANGEFS_KOBJ_ID) \|\|
		strcmp(((struct orangefs_attribute *)attr)->attr.name,
		"readahead_count_size")) {
		rc = kstrtoint(buf, 0, &val);
		if (rc)
		goto out;
		}

		new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_SET;

		if (!strcmp(kobj_id, ORANGEFS_KOBJ_ID)) {
		orangefs_attr = (struct orangefs_attribute *)attr;
		@@ -1112,6 +1160,51 @@ static int sysfs_service_op_store(char kobj_id, const char buf, void *attr)
		rc = 0;
		goto out;
		}
		} else if (!strcmp(orangefs_attr->attr.name,
		"readahead_count")) {
		if ((val >= 0)) {
		new_op->upcall.req.param.op =
		ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT;
		} else {
		rc = 0;
		goto out;
		}
		} else if (!strcmp(orangefs_attr->attr.name,
		"readahead_size")) {
		if ((val >= 0)) {
		new_op->upcall.req.param.op =
		ORANGEFS_PARAM_REQUEST_OP_READAHEAD_SIZE;
		} else {
		rc = 0;
		goto out;
		}
		} else if (!strcmp(orangefs_attr->attr.name,
		"readahead_count_size")) {
		int val1, val2;
		rc = sscanf(buf, "%d %d", &val1, &val2);
		if (rc < 2) {
		rc = 0;
		goto out;
		}
		if ((val1 >= 0) && (val2 >= 0)) {
		new_op->upcall.req.param.op =
		ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE;
		} else {
		rc = 0;
		goto out;
		}
		new_op->upcall.req.param.u.value32[0] = val1;
		new_op->upcall.req.param.u.value32[1] = val2;
		goto value_set;
		} else if (!strcmp(orangefs_attr->attr.name,
		"perf_counter_reset")) {
		if ((val > 0)) {
		new_op->upcall.req.param.op =
		ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE;
		} else {
		rc = 0;
		goto out;
		}
		}

		} else if (!strcmp(kobj_id, ACACHE_KOBJ_ID)) {
		@@ -1273,9 +1366,8 @@ static int sysfs_service_op_store(char kobj_id, const char buf, void *attr)
		goto out;
		}

		new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_SET;

		new_op->upcall.req.param.u.value64 = val;
		value_set:

		/*
		* The service_operation will return a errno return code on
		@@ -1398,6 +1490,18 @@ static struct orangefs_attribute dcache_timeout_msecs_attribute =
		static struct orangefs_attribute getattr_timeout_msecs_attribute =
		__ATTR(getattr_timeout_msecs, 0664, int_orangefs_show, int_store);

		static struct orangefs_attribute readahead_count_attribute =
		__ATTR(readahead_count, 0664, service_orangefs_show,
		service_orangefs_store);

		static struct orangefs_attribute readahead_size_attribute =
		__ATTR(readahead_size, 0664, service_orangefs_show,
		service_orangefs_store);

		static struct orangefs_attribute readahead_count_size_attribute =
		__ATTR(readahead_count_size, 0664, service_orangefs_show,
		service_orangefs_store);

		static struct orangefs_attribute perf_counter_reset_attribute =
		__ATTR(perf_counter_reset,
		0664,
		@@ -1421,6 +1525,9 @@ static struct attribute *orangefs_default_attrs[] = {
		&slot_timeout_secs_attribute.attr,
		&dcache_timeout_msecs_attribute.attr,
		&getattr_timeout_msecs_attribute.attr,
		&readahead_count_attribute.attr,
		&readahead_size_attribute.attr,
		&readahead_count_size_attribute.attr,
		&perf_counter_reset_attribute.attr,
		&perf_history_size_attribute.attr,
		&perf_time_interval_secs_attribute.attr,