*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
*/
#include <linux/module.h>
-#include <linux/sysctl.h>
#include <linux/sched.h>
#include <linux/mm.h>
-#include <linux/sysctl.h>
-#include <linux/version.h>
-#include <linux/proc_fs.h>
#include <linux/slab.h>
#include <linux/stat.h>
#include <linux/ctype.h>
-#include <asm/bitops.h>
-#include <asm/uaccess.h>
+#include <linux/bitops.h>
+#include <linux/uaccess.h>
#include <linux/utsname.h>
#define DEBUG_SUBSYSTEM S_CLASS
#include <lprocfs_status.h>
#include <obd_class.h>
-#ifdef CONFIG_SYSCTL
-static struct ctl_table_header *obd_table_header;
-#endif
+struct static_lustre_uintvalue_attr {
+ struct {
+ struct attribute attr;
+ ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
+ char *buf);
+ ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
+ const char *buf, size_t len);
+ } u;
+ int *value;
+};
-static int
-proc_set_timeout(struct ctl_table *table, int write, void __user *buffer,
- size_t *lenp, loff_t *ppos)
+static ssize_t static_uintvalue_show(struct kobject *kobj,
+ struct attribute *attr,
+ char *buf)
{
- int rc;
+ struct static_lustre_uintvalue_attr *lattr = (void *)attr;
- rc = proc_dointvec(table, write, buffer, lenp, ppos);
- if (ldlm_timeout >= obd_timeout)
- ldlm_timeout = max(obd_timeout / 3, 1U);
- return rc;
+ return sprintf(buf, "%d\n", *lattr->value);
}
-static int
-proc_memory_alloc(struct ctl_table *table, int write, void __user *buffer,
- size_t *lenp, loff_t *ppos)
+static ssize_t static_uintvalue_store(struct kobject *kobj,
+ struct attribute *attr,
+ const char *buffer, size_t count)
{
- char buf[22];
- int len;
+ struct static_lustre_uintvalue_attr *lattr = (void *)attr;
+ unsigned int val;
+ int rc;
- if (!*lenp || (*ppos && !write)) {
- *lenp = 0;
- return 0;
- }
- if (write)
- return -EINVAL;
+ rc = kstrtouint(buffer, 10, &val);
+ if (rc)
+ return rc;
- len = snprintf(buf, sizeof(buf), "%llu\n", obd_memory_sum());
- if (len > *lenp)
- len = *lenp;
- buf[len] = '\0';
- if (copy_to_user(buffer, buf, len))
- return -EFAULT;
- *lenp = len;
- *ppos += *lenp;
- return 0;
+ *lattr->value = val;
+
+ return count;
}
-static int
-proc_mem_max(struct ctl_table *table, int write, void __user *buffer,
- size_t *lenp, loff_t *ppos)
-{
- char buf[22];
- int len;
+#define LUSTRE_STATIC_UINT_ATTR(name, value) \
+static struct static_lustre_uintvalue_attr lustre_sattr_##name = \
+ {__ATTR(name, 0644, \
+ static_uintvalue_show, \
+ static_uintvalue_store),\
+ value }
- if (!*lenp || (*ppos && !write)) {
- *lenp = 0;
- return 0;
- }
- if (write)
- return -EINVAL;
+LUSTRE_STATIC_UINT_ATTR(timeout, &obd_timeout);
- len = snprintf(buf, sizeof(buf), "%llu\n", obd_memory_max());
- if (len > *lenp)
- len = *lenp;
- buf[len] = '\0';
- if (copy_to_user(buffer, buf, len))
- return -EFAULT;
- *lenp = len;
- *ppos += *lenp;
- return 0;
+static ssize_t max_dirty_mb_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%lu\n",
+ obd_max_dirty_pages / (1 << (20 - PAGE_SHIFT)));
}
-static int
-proc_max_dirty_pages_in_mb(struct ctl_table *table, int write,
- void __user *buffer, size_t *lenp, loff_t *ppos)
+static ssize_t max_dirty_mb_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count)
{
- __s64 val;
- int rc = 0;
+ unsigned long val;
+ int rc;
+
+ rc = kstrtoul(buffer, 10, &val);
+ if (rc)
+ return rc;
+
+ val *= 1 << (20 - PAGE_SHIFT); /* convert to pages */
- if (!table->data || !table->maxlen || !*lenp || (*ppos && !write)) {
- *lenp = 0;
- return 0;
+ if (val > ((totalram_pages / 10) * 9)) {
+ /* Somebody wants to assign too much memory to dirty pages */
+ return -EINVAL;
}
- if (write) {
- rc = lprocfs_str_with_units_to_s64(buffer, *lenp, &val, 'M');
- if (rc)
- return rc;
- if (val < 0)
- return -ERANGE;
+ if (val < 4 << (20 - PAGE_SHIFT)) {
+ /* Less than 4 Mb for dirty cache is also bad */
+ return -EINVAL;
+ }
- val >>= PAGE_SHIFT;
+ obd_max_dirty_pages = val;
- /* Don't allow them to let dirty pages exceed 90% of system
- * memory and set a hard minimum of 4MB. */
- if (val > ((totalram_pages / 10) * 9)) {
- CERROR("Refusing to set max dirty pages to %lld, "
- "which is more than 90%% of available RAM; "
- "setting to %lu\n", val,
- ((totalram_pages / 10) * 9));
- obd_max_dirty_pages = ((totalram_pages / 10) * 9);
- } else if (val < 4 << (20 - PAGE_SHIFT)) {
- obd_max_dirty_pages = 4 << (20 - PAGE_SHIFT);
- } else {
- obd_max_dirty_pages = val;
- }
- } else {
- char buf[21];
- int len;
+ return count;
+}
+LUSTRE_RW_ATTR(max_dirty_mb);
+
+LUSTRE_STATIC_UINT_ATTR(debug_peer_on_timeout, &obd_debug_peer_on_timeout);
+LUSTRE_STATIC_UINT_ATTR(dump_on_timeout, &obd_dump_on_timeout);
+LUSTRE_STATIC_UINT_ATTR(dump_on_eviction, &obd_dump_on_eviction);
+LUSTRE_STATIC_UINT_ATTR(at_min, &at_min);
+LUSTRE_STATIC_UINT_ATTR(at_max, &at_max);
+LUSTRE_STATIC_UINT_ATTR(at_extra, &at_extra);
+LUSTRE_STATIC_UINT_ATTR(at_early_margin, &at_early_margin);
+LUSTRE_STATIC_UINT_ATTR(at_history, &at_history);
+
+#ifdef HAVE_SERVER_SUPPORT
+LUSTRE_STATIC_UINT_ATTR(ldlm_timeout, &ldlm_timeout);
+LUSTRE_STATIC_UINT_ATTR(bulk_timeout, &bulk_timeout);
+#endif
- len = lprocfs_read_frac_helper(buf, sizeof(buf),
- *(unsigned long *)table->data,
- 1 << (20 - PAGE_SHIFT));
- if (len > *lenp)
- len = *lenp;
- buf[len] = '\0';
- if (copy_to_user(buffer, buf, len))
- return -EFAULT;
- *lenp = len;
- }
- *ppos += *lenp;
- return rc;
+static ssize_t memused_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%llu\n", obd_memory_sum());
}
+LUSTRE_RO_ATTR(memused);
-#ifdef CONFIG_SYSCTL
-static struct ctl_table obd_table[] = {
- {
- INIT_CTL_NAME
- .procname = "timeout",
- .data = &obd_timeout,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_set_timeout
- },
- {
- INIT_CTL_NAME
- .procname = "debug_peer_on_timeout",
- .data = &obd_debug_peer_on_timeout,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- INIT_CTL_NAME
- .procname = "dump_on_timeout",
- .data = &obd_dump_on_timeout,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- INIT_CTL_NAME
- .procname = "dump_on_eviction",
- .data = &obd_dump_on_eviction,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- INIT_CTL_NAME
- .procname = "memused",
- .data = NULL,
- .maxlen = 0,
- .mode = 0444,
- .proc_handler = &proc_memory_alloc
- },
- {
- INIT_CTL_NAME
- .procname = "memused_max",
- .data = NULL,
- .maxlen = 0,
- .mode = 0444,
- .proc_handler = &proc_mem_max
- },
- {
- INIT_CTL_NAME
- .procname = "ldlm_timeout",
- .data = &ldlm_timeout,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_set_timeout
- },
- {
- INIT_CTL_NAME
- .procname = "max_dirty_mb",
- .data = &obd_max_dirty_pages,
- .maxlen = sizeof(unsigned long),
- .mode = 0644,
- .proc_handler = &proc_max_dirty_pages_in_mb
- },
- {
- INIT_CTL_NAME
- .procname = "bulk_timeout",
- .data = &bulk_timeout,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- INIT_CTL_NAME
- .procname = "at_min",
- .data = &at_min,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- INIT_CTL_NAME
- .procname = "at_max",
- .data = &at_max,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- INIT_CTL_NAME
- .procname = "at_extra",
- .data = &at_extra,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- INIT_CTL_NAME
- .procname = "at_early_margin",
- .data = &at_early_margin,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- INIT_CTL_NAME
- .procname = "at_history",
- .data = &at_history,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- { 0 }
+static ssize_t memused_max_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%llu\n", obd_memory_max());
+}
+LUSTRE_RO_ATTR(memused_max);
+
+static struct attribute *lustre_attrs[] = {
+ &lustre_sattr_timeout.u.attr,
+ &lustre_attr_max_dirty_mb.attr,
+ &lustre_sattr_debug_peer_on_timeout.u.attr,
+ &lustre_sattr_dump_on_timeout.u.attr,
+ &lustre_sattr_dump_on_eviction.u.attr,
+ &lustre_sattr_at_min.u.attr,
+ &lustre_sattr_at_max.u.attr,
+ &lustre_sattr_at_extra.u.attr,
+ &lustre_sattr_at_early_margin.u.attr,
+ &lustre_sattr_at_history.u.attr,
+ &lustre_attr_memused_max.attr,
+ &lustre_attr_memused.attr,
+#ifdef HAVE_SERVER_SUPPORT
+ &lustre_sattr_ldlm_timeout.u.attr,
+ &lustre_sattr_bulk_timeout.u.attr,
+#endif
+ NULL,
};
-static struct ctl_table parent_table[] = {
- {
- INIT_CTL_NAME
- .procname = "lustre",
- .data = NULL,
- .maxlen = 0,
- .mode = 0555,
- .child = obd_table
- },
- { 0 }
+static struct attribute_group lustre_attr_group = {
+ .attrs = lustre_attrs,
};
-#endif
-void obd_sysctl_init (void)
+int obd_sysctl_init(void)
{
-#ifdef CONFIG_SYSCTL
- if ( !obd_table_header )
- obd_table_header = register_sysctl_table(parent_table);
-#endif
+ return sysfs_create_group(lustre_kobj, &lustre_attr_group);
}
-void obd_sysctl_clean (void)
+void obd_sysctl_clean(void)
{
-#ifdef CONFIG_SYSCTL
- if ( obd_table_header )
- unregister_sysctl_table(obd_table_header);
- obd_table_header = NULL;
-#endif
+ sysfs_remove_group(lustre_kobj, &lustre_attr_group);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff