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-rw-r--r--src/kernel/sysfs.c143
1 files changed, 69 insertions, 74 deletions
diff --git a/src/kernel/sysfs.c b/src/kernel/sysfs.c
index 1dbae3c..5b9a5ce 100644
--- a/src/kernel/sysfs.c
+++ b/src/kernel/sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* This file is part of the Distributed Network Block Device 3
*
@@ -24,15 +25,19 @@
#include "utils.h"
#ifndef MIN
-#define MIN(a,b) ((a) < (b) ? (a) : (b))
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
#endif
ssize_t show_cur_server_addr(char *buf, dnbd3_device_t *dev)
{
if (dev->cur_server.host.type == HOST_IP4)
- return MIN(snprintf(buf, PAGE_SIZE, "%pI4:%d\n", dev->cur_server.host.addr, (int)ntohs(dev->cur_server.host.port)), PAGE_SIZE);
+ return MIN(snprintf(buf, PAGE_SIZE, "%pI4:%d\n", dev->cur_server.host.addr,
+ (int)ntohs(dev->cur_server.host.port)),
+ PAGE_SIZE);
else if (dev->cur_server.host.type == HOST_IP6)
- return MIN(snprintf(buf, PAGE_SIZE, "[%pI6]:%d\n", dev->cur_server.host.addr, (int)ntohs(dev->cur_server.host.port)), PAGE_SIZE);
+ return MIN(snprintf(buf, PAGE_SIZE, "[%pI6]:%d\n", dev->cur_server.host.addr,
+ (int)ntohs(dev->cur_server.host.port)),
+ PAGE_SIZE);
*buf = '\0';
return 0;
}
@@ -45,9 +50,10 @@ ssize_t show_cur_server_rtt(char *buf, dnbd3_device_t *dev)
ssize_t show_alt_server_num(char *buf, dnbd3_device_t *dev)
{
int i, num = 0;
- for (i = 0; i < NUMBER_SERVERS; ++i)
- {
- if (dev->alt_servers[i].host.type) ++num;
+
+ for (i = 0; i < NUMBER_SERVERS; ++i) {
+ if (dev->alt_servers[i].host.type)
+ ++num;
}
return MIN(snprintf(buf, PAGE_SIZE, "%d\n", num), PAGE_SIZE);
}
@@ -55,28 +61,31 @@ ssize_t show_alt_server_num(char *buf, dnbd3_device_t *dev)
ssize_t show_alt_servers(char *buf, dnbd3_device_t *dev)
{
int i, size = PAGE_SIZE, ret;
- for (i = 0; i < NUMBER_SERVERS; ++i)
- {
+
+ for (i = 0; i < NUMBER_SERVERS; ++i) {
if (dev->alt_servers[i].host.type == HOST_IP4)
- ret = MIN(snprintf(buf, size, "%pI4:%d,%llu,%d\n",
- dev->alt_servers[i].host.addr,
- (int)ntohs(dev->alt_servers[i].host.port),
- (unsigned long long)((dev->alt_servers[i].rtts[0] + dev->alt_servers[i].rtts[1] + dev->alt_servers[i].rtts[2] + dev->alt_servers[i].rtts[3]) / 4),
- (int)dev->alt_servers[i].failures)
- , size);
+ ret = MIN(snprintf(buf, size, "%pI4:%d,%llu,%d\n", dev->alt_servers[i].host.addr,
+ (int)ntohs(dev->alt_servers[i].host.port),
+ (unsigned long long)((dev->alt_servers[i].rtts[0] +
+ dev->alt_servers[i].rtts[1] +
+ dev->alt_servers[i].rtts[2] +
+ dev->alt_servers[i].rtts[3]) / 4),
+ (int)dev->alt_servers[i].failures),
+ size);
else if (dev->alt_servers[i].host.type == HOST_IP6)
- ret = MIN(snprintf(buf, size, "[%pI6]:%d,%llu,%d\n",
- dev->alt_servers[i].host.addr,
- (int)ntohs(dev->alt_servers[i].host.port),
- (unsigned long long)((dev->alt_servers[i].rtts[0] + dev->alt_servers[i].rtts[1] + dev->alt_servers[i].rtts[2] + dev->alt_servers[i].rtts[3]) / 4),
- (int)dev->alt_servers[i].failures)
- , size);
+ ret = MIN(snprintf(buf, size, "[%pI6]:%d,%llu,%d\n", dev->alt_servers[i].host.addr,
+ (int)ntohs(dev->alt_servers[i].host.port),
+ (unsigned long long)((dev->alt_servers[i].rtts[0] +
+ dev->alt_servers[i].rtts[1] +
+ dev->alt_servers[i].rtts[2] +
+ dev->alt_servers[i].rtts[3]) / 4),
+ (int)dev->alt_servers[i].failures),
+ size);
else
continue;
size -= ret;
buf += ret;
- if (size <= 0)
- {
+ if (size <= 0) {
size = 0;
break;
}
@@ -86,7 +95,8 @@ ssize_t show_alt_servers(char *buf, dnbd3_device_t *dev)
ssize_t show_image_name(char *buf, dnbd3_device_t *dev)
{
- if (dev->imgname == NULL) return sprintf(buf, "(null)");
+ if (dev->imgname == NULL)
+ return sprintf(buf, "(null)");
return MIN(snprintf(buf, PAGE_SIZE, "%s\n", dev->imgname), PAGE_SIZE);
}
@@ -100,77 +110,64 @@ ssize_t show_update_available(char *buf, dnbd3_device_t *dev)
return MIN(snprintf(buf, PAGE_SIZE, "%d\n", dev->update_available), PAGE_SIZE);
}
-device_attr_t cur_server_addr =
-{
- .attr = {.name = "cur_server_addr", .mode = 0444 },
- .show = show_cur_server_addr,
- .store = NULL,
+device_attr_t cur_server_addr = {
+ .attr = { .name = "cur_server_addr", .mode = 0444 },
+ .show = show_cur_server_addr,
+ .store = NULL,
};
-device_attr_t cur_server_rtt =
-{
- .attr = {.name = "cur_server_rtt", .mode = 0444 },
- .show = show_cur_server_rtt,
- .store = NULL,
+device_attr_t cur_server_rtt = {
+ .attr = { .name = "cur_server_rtt", .mode = 0444 },
+ .show = show_cur_server_rtt,
+ .store = NULL,
};
-device_attr_t alt_server_num =
-{
- .attr = {.name = "alt_server_num", .mode = 0444 },
- .show = show_alt_server_num,
- .store = NULL,
+device_attr_t alt_server_num = {
+ .attr = { .name = "alt_server_num", .mode = 0444 },
+ .show = show_alt_server_num,
+ .store = NULL,
};
-device_attr_t alt_servers =
-{
- .attr = {.name = "alt_servers", .mode = 0444 },
- .show = show_alt_servers,
- .store = NULL,
+device_attr_t alt_servers = {
+ .attr = { .name = "alt_servers", .mode = 0444 },
+ .show = show_alt_servers,
+ .store = NULL,
};
-device_attr_t image_name =
-{
- .attr = {.name = "image_name", .mode = 0444 },
- .show = show_image_name,
- .store = NULL,
+device_attr_t image_name = {
+ .attr = { .name = "image_name", .mode = 0444 },
+ .show = show_image_name,
+ .store = NULL,
};
-device_attr_t rid =
-{
- .attr = {.name = "rid", .mode = 0444 },
- .show = show_rid,
- .store = NULL,
+device_attr_t rid = {
+ .attr = { .name = "rid", .mode = 0444 },
+ .show = show_rid,
+ .store = NULL,
};
-device_attr_t update_available =
-{
- .attr = {.name = "update_available", .mode = 0444 },
- .show = show_update_available,
- .store = NULL,
+device_attr_t update_available = {
+ .attr = { .name = "update_available", .mode = 0444 },
+ .show = show_update_available,
+ .store = NULL,
};
ssize_t device_show(struct kobject *kobj, struct attribute *attr, char *buf)
{
device_attr_t *device_attr = container_of(attr, device_attr_t, attr);
dnbd3_device_t *dev = container_of(kobj, dnbd3_device_t, kobj);
+
return device_attr->show(buf, dev);
}
-struct attribute *device_attrs[] =
-{
- &cur_server_addr.attr,
- &cur_server_rtt.attr,
- &alt_server_num.attr,
- &alt_servers.attr,
- &image_name.attr,
- &rid.attr,
- &update_available.attr,
- NULL,
+struct attribute *device_attrs[] = {
+ &cur_server_addr.attr, &cur_server_rtt.attr,
+ &alt_server_num.attr, &alt_servers.attr,
+ &image_name.attr, &rid.attr,
+ &update_available.attr, NULL,
};
-
-struct sysfs_ops device_ops =
-{
+const struct sysfs_ops device_ops = {
.show = device_show,
};
@@ -179,14 +176,12 @@ void release(struct kobject *kobj)
kobj->state_initialized = 0;
}
-struct kobj_type device_ktype =
-{
+struct kobj_type device_ktype = {
.default_attrs = device_attrs,
.sysfs_ops = &device_ops,
.release = release,
};
-
void dnbd3_sysfs_init(dnbd3_device_t *dev)
{
int error;
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-05-09 11:40:36 +0200