*
* 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
*/
* Copyright 2008 Sun Microsystems, Inc. All rights reserved
* Use is subject to license terms.
*
- * Copyright (c) 2012, 2013, Intel Corporation.
+ * Copyright (c) 2012, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <obd_class.h>
#include <linux/seq_file.h>
#include "lod_internal.h"
-#include <lustre_param.h>
+#include <uapi/linux/lustre/lustre_param.h>
+
+/*
+ * Notice, all the functions below (except for lod_procfs_init() and
+ * lod_procfs_fini()) are not supposed to be used directly. They are
+ * called by Linux kernel's procfs.
+ */
+
+#ifdef CONFIG_PROC_FS
-#ifdef LPROCFS
-static int lod_rd_stripesize(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+/**
+ * Show default stripe size.
+ *
+ * \param[in] m seq file
+ * \param[in] v unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative error code if failed
+ */
+static int lod_dom_stripesize_seq_show(struct seq_file *m, void *v)
{
- struct obd_device *dev = (struct obd_device *)data;
+ struct obd_device *dev = m->private;
struct lod_device *lod;
LASSERT(dev != NULL);
- lod = lu2lod_dev(dev->obd_lu_dev);
- *eof = 1;
- return snprintf(page, count, LPU64"\n",
- lod->lod_desc.ld_default_stripe_size);
+ lod = lu2lod_dev(dev->obd_lu_dev);
+ seq_printf(m, "%u\n", lod->lod_dom_max_stripesize);
+ return 0;
}
-static int lod_wr_stripesize(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * Set default stripe size.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string containing the maximum number of bytes stored in
+ * each object before moving to the next object in the
+ * layout (if any)
+ * \param[in] count @buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval @count on success
+ * \retval negative error code if failed
+ */
+static ssize_t
+lod_dom_stripesize_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct obd_device *dev = (struct obd_device *)data;
+ struct seq_file *m = file->private_data;
+ struct obd_device *dev = m->private;
struct lod_device *lod;
- __u64 val;
+ s64 val;
int rc;
LASSERT(dev != NULL);
- lod = lu2lod_dev(dev->obd_lu_dev);
- rc = lprocfs_write_u64_helper(buffer, count, &val);
+ lod = lu2lod_dev(dev->obd_lu_dev);
+ rc = lprocfs_str_with_units_to_s64(buffer, count, &val, '1');
if (rc)
return rc;
+ if (val < 0)
+ return -ERANGE;
+
+ /* 1GB is the limit */
+ if (val > (1ULL << 30))
+ return -ERANGE;
+ else if (val > 0) {
+ if (val < LOV_MIN_STRIPE_SIZE) {
+ LCONSOLE_INFO("Increasing provided stripe size to "
+ "a minimum value %u\n",
+ LOV_MIN_STRIPE_SIZE);
+ val = LOV_MIN_STRIPE_SIZE;
+ } else if (val & (LOV_MIN_STRIPE_SIZE - 1)) {
+ val &= ~(LOV_MIN_STRIPE_SIZE - 1);
+ LCONSOLE_WARN("Changing provided stripe size to %llu "
+ "(a multiple of minimum %u)\n",
+ val, LOV_MIN_STRIPE_SIZE);
+ }
+ }
+
+ lod->lod_dom_max_stripesize = val;
- lod_fix_desc_stripe_size(&val);
- lod->lod_desc.ld_default_stripe_size = val;
return count;
}
+LPROC_SEQ_FOPS(lod_dom_stripesize);
-static int lod_rd_stripeoffset(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+/**
+ * Show default stripe size.
+ *
+ * \param[in] m seq file
+ * \param[in] v unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative error code if failed
+ */
+static int lod_stripesize_seq_show(struct seq_file *m, void *v)
{
- struct obd_device *dev = (struct obd_device *)data;
+ struct obd_device *dev = m->private;
struct lod_device *lod;
LASSERT(dev != NULL);
lod = lu2lod_dev(dev->obd_lu_dev);
- *eof = 1;
- return snprintf(page, count, LPU64"\n",
- lod->lod_desc.ld_default_stripe_offset);
+ seq_printf(m, "%llu\n",
+ lod->lod_desc.ld_default_stripe_size);
+ return 0;
}
-static int lod_wr_stripeoffset(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * Set default stripe size.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string containing the maximum number of bytes stored in
+ * each object before moving to the next object in the
+ * layout (if any)
+ * \param[in] count @buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval @count on success
+ * \retval negative error code if failed
+ */
+static ssize_t
+lod_stripesize_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct obd_device *dev = (struct obd_device *)data;
+ struct seq_file *m = file->private_data;
+ struct obd_device *dev = m->private;
struct lod_device *lod;
- __u64 val;
+ s64 val;
int rc;
LASSERT(dev != NULL);
lod = lu2lod_dev(dev->obd_lu_dev);
- rc = lprocfs_write_u64_helper(buffer, count, &val);
+ rc = lprocfs_str_with_units_to_s64(buffer, count, &val, '1');
if (rc)
return rc;
+ if (val < 0)
+ return -ERANGE;
+
+ lod_fix_desc_stripe_size(&val);
+ lod->lod_desc.ld_default_stripe_size = val;
- lod->lod_desc.ld_default_stripe_offset = val;
return count;
}
+LPROC_SEQ_FOPS(lod_stripesize);
-static int lod_rd_stripetype(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+/**
+ * Show default stripe offset.
+ *
+ * \param[in] m seq file
+ * \param[in] v unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative error code if failed
+ */
+static ssize_t stripeoffset_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
{
- struct obd_device *dev = (struct obd_device *)data;
- struct lod_device *lod;
+ struct dt_device *dt = container_of(kobj, struct dt_device,
+ dd_kobj);
+ struct lod_device *lod = dt2lod_dev(dt);
- LASSERT(dev != NULL);
- lod = lu2lod_dev(dev->obd_lu_dev);
- *eof = 1;
- return snprintf(page, count, "%u\n", lod->lod_desc.ld_pattern);
+ return sprintf(buf, "%lld\n", lod->lod_desc.ld_default_stripe_offset);
}
-static int lod_wr_stripetype(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * Set default stripe offset.
+ *
+ * Usually contains -1 allowing Lustre to balance objects among OST
+ * otherwise may cause severe OST imbalance.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string describing starting OST index for new files
+ * \param[in] count @buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval @count on success
+ * \retval negative error code if failed
+ */
+static ssize_t stripeoffset_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count)
{
- struct obd_device *dev = (struct obd_device *)data;
- struct lod_device *lod;
- int val, rc;
+ struct dt_device *dt = container_of(kobj, struct dt_device,
+ dd_kobj);
+ struct lod_device *lod = dt2lod_dev(dt);
+ long val;
+ int rc;
- LASSERT(dev != NULL);
- lod = lu2lod_dev(dev->obd_lu_dev);
- rc = lprocfs_write_helper(buffer, count, &val);
+ rc = kstrtol(buffer, 0, &val);
if (rc)
return rc;
- lod_fix_desc_pattern(&val);
- lod->lod_desc.ld_pattern = val;
+ if (val < -1 || val > LOV_MAX_STRIPE_COUNT)
+ return -ERANGE;
+
+ lod->lod_desc.ld_default_stripe_offset = val;
+
return count;
}
+LUSTRE_RW_ATTR(stripeoffset);
-static int lod_rd_stripecount(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+/**
+ * Show default striping pattern (LOV_PATTERN_*).
+ *
+ * \param[in] m seq file
+ * \param[in] v unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative error code if failed
+ */
+static ssize_t stripetype_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
{
- struct obd_device *dev = (struct obd_device *)data;
- struct lod_device *lod;
+ struct dt_device *dt = container_of(kobj, struct dt_device,
+ dd_kobj);
+ struct lod_device *lod = dt2lod_dev(dt);
- LASSERT(dev != NULL);
- lod = lu2lod_dev(dev->obd_lu_dev);
- *eof = 1;
- return snprintf(page, count, "%d\n",
- (__s16)(lod->lod_desc.ld_default_stripe_count + 1) - 1);
+ return sprintf(buf, "%u\n", lod->lod_desc.ld_pattern);
}
-static int lod_wr_stripecount(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * Set default striping pattern (a number, not a human-readable string).
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string containing the default striping pattern for new
+ * files. This is an integer LOV_PATTERN_* value
+ * \param[in] count @buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval @count on success
+ * \retval negative error code if failed
+ */
+static ssize_t stripetype_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count)
{
- struct obd_device *dev = (struct obd_device *)data;
- struct lod_device *lod;
- int val, rc;
+ struct dt_device *dt = container_of(kobj, struct dt_device,
+ dd_kobj);
+ struct lod_device *lod = dt2lod_dev(dt);
+ u32 pattern;
+ int rc;
- LASSERT(dev != NULL);
- lod = lu2lod_dev(dev->obd_lu_dev);
- rc = lprocfs_write_helper(buffer, count, &val);
+ rc = kstrtouint(buffer, 0, &pattern);
if (rc)
return rc;
- lod_fix_desc_stripe_count(&val);
- lod->lod_desc.ld_default_stripe_count = val;
+ lod_fix_desc_pattern(&pattern);
+ lod->lod_desc.ld_pattern = pattern;
+
return count;
}
+LUSTRE_RW_ATTR(stripetype);
-static int lod_rd_numobd(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+/**
+ * Show default number of stripes.
+ *
+ * \param[in] m seq file
+ * \param[in] v unused for single entry
+ *
+ * \retval 0 on success,
+ * \retval negative error code if failed
+ */
+static ssize_t stripecount_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
{
- struct obd_device *dev = (struct obd_device*)data;
- struct lod_device *lod;
+ struct dt_device *dt = container_of(kobj, struct dt_device,
+ dd_kobj);
+ struct lod_device *lod = dt2lod_dev(dt);
- LASSERT(dev != NULL);
- lod = lu2lod_dev(dev->obd_lu_dev);
- *eof = 1;
- return snprintf(page, count, "%u\n", lod->lod_desc.ld_tgt_count);
+ return sprintf(buf, "%d\n",
+ (s16)(lod->lod_desc.ld_default_stripe_count + 1) - 1);
+}
+/**
+ * Set default number of stripes.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string containing the default number of stripes
+ * for new files
+ * \param[in] count @buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval @count on success
+ * \retval negative error code otherwise
+ */
+static ssize_t stripecount_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count)
+{
+ struct dt_device *dt = container_of(kobj, struct dt_device,
+ dd_kobj);
+ struct lod_device *lod = dt2lod_dev(dt);
+ int stripe_count;
+ int rc;
+
+ rc = kstrtoint(buffer, 0, &stripe_count);
+ if (rc)
+ return rc;
+
+ if (stripe_count < -1)
+ return -ERANGE;
+
+ lod_fix_desc_stripe_count(&stripe_count);
+ lod->lod_desc.ld_default_stripe_count = stripe_count;
+
+ return count;
}
+LUSTRE_RW_ATTR(stripecount);
-static int lod_rd_activeobd(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+/**
+ * Show number of targets.
+ *
+ * \param[in] m seq file
+ * \param[in] v unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative error code if failed
+ */
+static ssize_t numobd_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
{
- struct obd_device* dev = (struct obd_device*)data;
- struct lod_device *lod;
+ struct dt_device *dt = container_of(kobj, struct dt_device,
+ dd_kobj);
+ struct lod_device *lod = dt2lod_dev(dt);
- LASSERT(dev != NULL);
- lod = lu2lod_dev(dev->obd_lu_dev);
- *eof = 1;
- return snprintf(page, count, "%u\n",
- lod->lod_desc.ld_active_tgt_count);
+ return sprintf(buf, "%u\n", lod->lod_desc.ld_tgt_count);
}
+LUSTRE_RO_ATTR(numobd);
-static int lod_rd_desc_uuid(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+/**
+ * Show number of active targets.
+ *
+ * \param[in] m seq file
+ * \param[in] v unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative error code if failed
+ */
+static ssize_t activeobd_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
{
- struct obd_device *dev = (struct obd_device*) data;
- struct lod_device *lod;
+ struct dt_device *dt = container_of(kobj, struct dt_device,
+ dd_kobj);
+ struct lod_device *lod = dt2lod_dev(dt);
- LASSERT(dev != NULL);
- lod = lu2lod_dev(dev->obd_lu_dev);
- *eof = 1;
- return snprintf(page, count, "%s\n", lod->lod_desc.ld_uuid.uuid);
+ return sprintf(buf, "%u\n", lod->lod_desc.ld_active_tgt_count);
}
+LUSTRE_RO_ATTR(activeobd);
-/* free priority (0-255): how badly user wants to choose empty osts */
-static int lod_rd_qos_priofree(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+/**
+ * Show UUID of LOD device.
+ *
+ * \param[in] m seq file
+ * \param[in] v unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative error code if failed
+ */
+static ssize_t desc_uuid_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
{
- struct obd_device *dev = (struct obd_device*) data;
- struct lod_device *lod = lu2lod_dev(dev->obd_lu_dev);
+ struct dt_device *dt = container_of(kobj, struct dt_device,
+ dd_kobj);
+ struct lod_device *lod = dt2lod_dev(dt);
- LASSERT(lod != NULL);
- *eof = 1;
- return snprintf(page, count, "%d%%\n",
- (lod->lod_qos.lq_prio_free * 100 + 255) >> 8);
+ return sprintf(buf, "%s\n", lod->lod_desc.ld_uuid.uuid);
}
+LUSTRE_RO_ATTR(desc_uuid);
-static int lod_wr_qos_priofree(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * Show QoS priority parameter.
+ *
+ * The printed value is a percentage value (0-100%) indicating the priority
+ * of free space compared to performance. 0% means select OSTs equally
+ * regardless of their free space, 100% means select OSTs only by their free
+ * space even if it results in very imbalanced load on the OSTs.
+ *
+ * \param[in] m seq file
+ * \param[in] v unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative error code if failed
+ */
+static ssize_t qos_prio_free_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
{
- struct obd_device *dev = (struct obd_device *)data;
- struct lod_device *lod;
- int val, rc;
+ struct dt_device *dt = container_of(kobj, struct dt_device,
+ dd_kobj);
+ struct lod_device *lod = dt2lod_dev(dt);
- LASSERT(dev != NULL);
- lod = lu2lod_dev(dev->obd_lu_dev);
+ return sprintf(buf, "%d%%\n",
+ (lod->lod_qos.lq_prio_free * 100 + 255) >> 8);
+}
- rc = lprocfs_write_helper(buffer, count, &val);
+/**
+ * Set QoS free space priority parameter.
+ *
+ * Set the relative priority of free OST space compared to OST load when OSTs
+ * are space imbalanced. See lod_qos_priofree_seq_show() for description of
+ * this parameter. See lod_qos_thresholdrr_seq_write() and lq_threshold_rr to
+ * determine what constitutes "space imbalanced" OSTs.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string which contains the free space priority (0-100)
+ * \param[in] count @buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval @count on success
+ * \retval negative error code if failed
+ */
+static ssize_t qos_prio_free_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count)
+{
+ struct dt_device *dt = container_of(kobj, struct dt_device,
+ dd_kobj);
+ struct lod_device *lod = dt2lod_dev(dt);
+ unsigned int val;
+ int rc;
+
+ rc = kstrtouint(buffer, 0, &val);
if (rc)
return rc;
lod->lod_qos.lq_prio_free = (val << 8) / 100;
lod->lod_qos.lq_dirty = 1;
lod->lod_qos.lq_reset = 1;
+
return count;
}
+LUSTRE_RW_ATTR(qos_prio_free);
-static int lod_rd_qos_thresholdrr(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * Show threshold for "same space on all OSTs" rule.
+ *
+ * \param[in] m seq file
+ * \param[in] v unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative error code if failed
+ */
+static int lod_qos_thresholdrr_seq_show(struct seq_file *m, void *v)
{
- struct obd_device *dev = (struct obd_device*) data;
+ struct obd_device *dev = m->private;
struct lod_device *lod;
LASSERT(dev != NULL);
lod = lu2lod_dev(dev->obd_lu_dev);
- *eof = 1;
- return snprintf(page, count, "%d%%\n",
- (lod->lod_qos.lq_threshold_rr * 100 + 255) >> 8);
+ seq_printf(m, "%d%%\n",
+ (lod->lod_qos.lq_threshold_rr * 100 + 255) >> 8);
+ return 0;
}
-static int lod_wr_qos_thresholdrr(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * Set threshold for "same space on all OSTs" rule.
+ *
+ * This sets the maximum percentage difference of free space between the most
+ * full and most empty OST in the currently available OSTs. If this percentage
+ * is exceeded, use the QoS allocator to select OSTs based on their available
+ * space so that more full OSTs are chosen less often, otherwise use the
+ * round-robin allocator for efficiency and performance.
+
+ * \param[in] file proc file
+ * \param[in] buffer string containing percentage difference of free space
+ * \param[in] count @buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval @count on success
+ * \retval negative error code if failed
+ */
+static ssize_t
+lod_qos_thresholdrr_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct obd_device *dev = (struct obd_device *)data;
+ struct seq_file *m = file->private_data;
+ struct obd_device *dev = m->private;
struct lod_device *lod;
- int val, rc;
+ int rc;
+ __s64 val;
LASSERT(dev != NULL);
lod = lu2lod_dev(dev->obd_lu_dev);
- rc = lprocfs_write_helper(buffer, count, &val);
+ rc = lprocfs_str_with_units_to_s64(buffer, count, &val, '%');
if (rc)
return rc;
lod->lod_qos.lq_threshold_rr = (val << 8) / 100;
lod->lod_qos.lq_dirty = 1;
+
return count;
}
+LPROC_SEQ_FOPS(lod_qos_thresholdrr);
-static int lod_rd_qos_maxage(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+/**
+ * Show expiration period used to refresh cached statfs data, which
+ * is used to implement QoS/RR striping allocation algorithm.
+ *
+ * \param[in] m seq file
+ * \param[in] v unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative error code if failed
+ */
+static ssize_t qos_maxage_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
{
- struct obd_device *dev = (struct obd_device*) data;
- struct lod_device *lod;
+ struct dt_device *dt = container_of(kobj, struct dt_device,
+ dd_kobj);
+ struct lod_device *lod = dt2lod_dev(dt);
- LASSERT(dev != NULL);
- lod = lu2lod_dev(dev->obd_lu_dev);
- *eof = 1;
- return snprintf(page, count, "%u Sec\n", lod->lod_desc.ld_qos_maxage);
+ return sprintf(buf, "%u Sec\n", lod->lod_desc.ld_qos_maxage);
}
-static int lod_wr_qos_maxage(struct file *file, const char *buffer,
- unsigned long count, void *data)
+/**
+ * Set expiration period used to refresh cached statfs data.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string contains maximum age of statfs data in seconds
+ * \param[in] count @buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval @count on success
+ * \retval negative error code if failed
+ */
+static ssize_t qos_maxage_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count)
{
- struct obd_device *dev = (struct obd_device *)data;
- struct lustre_cfg_bufs bufs;
- struct lod_device *lod;
- struct lu_device *next;
- struct lustre_cfg *lcfg;
- char str[32];
- int val, rc, i;
-
- LASSERT(dev != NULL);
- lod = lu2lod_dev(dev->obd_lu_dev);
+ struct dt_device *dt = container_of(kobj, struct dt_device,
+ dd_kobj);
+ struct lod_device *lod = dt2lod_dev(dt);
+ struct lustre_cfg_bufs bufs;
+ struct lu_device *next;
+ struct lustre_cfg *lcfg;
+ char str[32];
+ unsigned int i;
+ int rc;
+ u32 val;
- rc = lprocfs_write_helper(buffer, count, &val);
+ rc = kstrtouint(buffer, 0, &val);
if (rc)
return rc;
* propogate the value down to OSPs
*/
lustre_cfg_bufs_reset(&bufs, NULL);
- sprintf(str, "%smaxage=%d", PARAM_OSP, val);
+ snprintf(str, 32, "%smaxage=%u", PARAM_OSP, val);
lustre_cfg_bufs_set_string(&bufs, 1, str);
- lcfg = lustre_cfg_new(LCFG_PARAM, &bufs);
+ OBD_ALLOC(lcfg, lustre_cfg_len(bufs.lcfg_bufcount, bufs.lcfg_buflen));
+ if (lcfg == NULL)
+ return -ENOMEM;
+ lustre_cfg_init(lcfg, LCFG_PARAM, &bufs);
+
lod_getref(&lod->lod_ost_descs);
lod_foreach_ost(lod, i) {
next = &OST_TGT(lod,i)->ltd_ost->dd_lu_dev;
CERROR("can't set maxage on #%d: %d\n", i, rc);
}
lod_putref(lod, &lod->lod_ost_descs);
- lustre_cfg_free(lcfg);
+ OBD_FREE(lcfg, lustre_cfg_len(lcfg->lcfg_bufcount, lcfg->lcfg_buflens));
return count;
}
+LUSTRE_RW_ATTR(qos_maxage);
static void *lod_osts_seq_start(struct seq_file *p, loff_t *pos)
{
return NULL;
}
+/**
+ * Show active/inactive status for OST found by lod_osts_seq_next().
+ *
+ * \param[in] m seq file
+ * \param[in] v unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative error code if failed
+ */
static int lod_osts_seq_show(struct seq_file *p, void *v)
{
struct obd_device *obd = p->private;
} else if (rc)
return rc;
- return seq_printf(p, "%d: %s %sACTIVE\n", idx,
- obd_uuid2str(&ost_desc->ltd_uuid),
- active ? "" : "IN");
+ seq_printf(p, "%d: %s %sACTIVE\n", idx,
+ obd_uuid2str(&ost_desc->ltd_uuid),
+ active ? "" : "IN");
+ return 0;
}
static const struct seq_operations lod_osts_sops = {
static int lod_osts_seq_open(struct inode *inode, struct file *file)
{
- struct proc_dir_entry *dp = PDE(inode);
struct seq_file *seq;
int rc;
- LPROCFS_ENTRY_CHECK(dp);
rc = seq_open(file, &lod_osts_sops);
if (rc)
return rc;
seq = file->private_data;
- seq->private = dp->data;
+ seq->private = PDE_DATA(inode);
return 0;
}
-static struct lprocfs_vars lprocfs_lod_obd_vars[] = {
- { "uuid", lprocfs_rd_uuid, 0, 0 },
- { "stripesize", lod_rd_stripesize, lod_wr_stripesize, 0 },
- { "stripeoffset", lod_rd_stripeoffset, lod_wr_stripeoffset, 0 },
- { "stripecount", lod_rd_stripecount, lod_wr_stripecount, 0 },
- { "stripetype", lod_rd_stripetype, lod_wr_stripetype, 0 },
- { "numobd", lod_rd_numobd, 0, 0 },
- { "activeobd", lod_rd_activeobd, 0, 0 },
- { "desc_uuid", lod_rd_desc_uuid, 0, 0 },
- { "qos_prio_free",lod_rd_qos_priofree, lod_wr_qos_priofree, 0 },
- { "qos_threshold_rr", lod_rd_qos_thresholdrr, lod_wr_qos_thresholdrr, 0 },
- { "qos_maxage", lod_rd_qos_maxage, lod_wr_qos_maxage, 0 },
- { 0 }
-};
-
-static struct lprocfs_vars lprocfs_lod_osd_vars[] = {
- { "blocksize", lprocfs_dt_rd_blksize, 0, 0 },
- { "kbytestotal", lprocfs_dt_rd_kbytestotal, 0, 0 },
- { "kbytesfree", lprocfs_dt_rd_kbytesfree, 0, 0 },
- { "kbytesavail", lprocfs_dt_rd_kbytesavail, 0, 0 },
- { "filestotal", lprocfs_dt_rd_filestotal, 0, 0 },
- { "filesfree", lprocfs_dt_rd_filesfree, 0, 0 },
- { 0 }
-};
+/**
+ * Show whether special failout mode for testing is enabled or not.
+ *
+ * \param[in] m seq file
+ * \param[in] v unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative error code if failed
+ */
+static ssize_t lmv_failout_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
+{
+ struct dt_device *dt = container_of(kobj, struct dt_device,
+ dd_kobj);
+ struct lod_device *lod = dt2lod_dev(dt);
-static struct lprocfs_vars lprocfs_lod_module_vars[] = {
- { "num_refs", lprocfs_rd_numrefs, 0, 0 },
- { 0 }
-};
+ return sprintf(buf, "%d\n", lod->lod_lmv_failout ? 1 : 0);
+}
-void lprocfs_lod_init_vars(struct lprocfs_static_vars *lvars)
+/**
+ * Enable/disable a special failout mode for testing.
+ *
+ * This determines whether the LMV will try to continue processing a striped
+ * directory even if it has a (partly) corrupted entry in the master directory,
+ * or if it will abort upon finding a corrupted slave directory entry.
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string: 0 or non-zero to disable or enable LMV failout
+ * \param[in] count @buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval @count on success
+ * \retval negative error code if failed
+ */
+static ssize_t lmv_failout_store(struct kobject *kobj, struct attribute *attr,
+ const char *buffer, size_t count)
{
- lvars->module_vars = lprocfs_lod_module_vars;
- lvars->obd_vars = lprocfs_lod_obd_vars;
+ struct dt_device *dt = container_of(kobj, struct dt_device,
+ dd_kobj);
+ struct lod_device *lod = dt2lod_dev(dt);
+ bool val = 0;
+ int rc;
+
+ rc = kstrtobool(buffer, &val);
+ if (rc)
+ return rc;
+
+ lod->lod_lmv_failout = val;
+
+ return count;
}
+LUSTRE_RW_ATTR(lmv_failout);
+
+static struct lprocfs_vars lprocfs_lod_obd_vars[] = {
+ { .name = "stripesize",
+ .fops = &lod_stripesize_fops },
+ { .name = "qos_threshold_rr",
+ .fops = &lod_qos_thresholdrr_fops },
+ { .name = "dom_stripesize",
+ .fops = &lod_dom_stripesize_fops },
+ { NULL }
+};
static const struct file_operations lod_proc_target_fops = {
.owner = THIS_MODULE,
.release = lprocfs_seq_release,
};
+static struct attribute *lod_attrs[] = {
+ &lustre_attr_stripeoffset.attr,
+ &lustre_attr_stripecount.attr,
+ &lustre_attr_stripetype.attr,
+ &lustre_attr_activeobd.attr,
+ &lustre_attr_desc_uuid.attr,
+ &lustre_attr_lmv_failout.attr,
+ &lustre_attr_numobd.attr,
+ &lustre_attr_qos_maxage.attr,
+ &lustre_attr_qos_prio_free.attr,
+ NULL,
+};
+
+/**
+ * Initialize procfs entries for LOD.
+ *
+ * \param[in] lod LOD device
+ *
+ * \retval 0 on success
+ * \retval negative error code if failed
+ */
int lod_procfs_init(struct lod_device *lod)
{
struct obd_device *obd = lod2obd(lod);
- struct lprocfs_static_vars lvars;
- cfs_proc_dir_entry_t *lov_proc_dir;
+ struct proc_dir_entry *lov_proc_dir;
+ struct obd_type *type;
+ struct kobject *lov;
int rc;
- lprocfs_lod_init_vars(&lvars);
- rc = lprocfs_obd_setup(obd, lvars.obd_vars);
+ lod->lod_dt_dev.dd_ktype.default_attrs = lod_attrs;
+ rc = dt_tunables_init(&lod->lod_dt_dev, obd->obd_type, obd->obd_name,
+ NULL);
if (rc) {
- CERROR("%s: cannot setup procfs entry: %d\n",
+ CERROR("%s: failed to setup DT tunables: %d\n",
obd->obd_name, rc);
RETURN(rc);
}
- rc = lprocfs_add_vars(obd->obd_proc_entry, lprocfs_lod_osd_vars,
- &lod->lod_dt_dev);
- if (rc) {
- CERROR("%s: cannot setup procfs entry: %d\n",
+ obd->obd_vars = lprocfs_lod_obd_vars;
+ obd->obd_proc_entry = lprocfs_register(obd->obd_name,
+ obd->obd_type->typ_procroot,
+ obd->obd_vars, obd);
+ if (IS_ERR(obd->obd_proc_entry)) {
+ rc = PTR_ERR(obd->obd_proc_entry);
+ CERROR("%s: error %d setting up lprocfs\n",
obd->obd_name, rc);
GOTO(out, rc);
}
GOTO(out, rc);
}
- /* for compatibility we link old procfs's OSC entries to osp ones */
- lov_proc_dir = lprocfs_srch(proc_lustre_root, "lov");
- if (lov_proc_dir != NULL && strstr(obd->obd_name, "lov") != NULL)
- lod->lod_symlink = lprocfs_add_symlink(obd->obd_name,
- lov_proc_dir,
- "../lod/%s",
- obd->obd_name);
+ lov = kset_find_obj(lustre_kset, "lov");
+ if (lov) {
+ rc = sysfs_create_link(lov, &lod->lod_dt_dev.dd_kobj,
+ obd->obd_name);
+ kobject_put(lov);
+ }
+
+ lod->lod_debugfs = ldebugfs_add_symlink(obd->obd_name, "lov",
+ "../lod/%s", obd->obd_name);
+ if (!lod->lod_debugfs)
+ CERROR("%s: failed to create LOV debugfs symlink\n",
+ obd->obd_name);
+
+ /* If the real LOV is present which is the case for setups
+ * with both server and clients on the same node then use
+ * the LOV's proc root */
+ type = class_search_type(LUSTRE_LOV_NAME);
+ if (type != NULL && type->typ_procroot != NULL)
+ lov_proc_dir = type->typ_procroot;
+ else
+ lov_proc_dir = obd->obd_type->typ_procsym;
+ if (lov_proc_dir == NULL)
+ RETURN(0);
+
+ /* for compatibility we link old procfs's LOV entries to lod ones */
+ lod->lod_symlink = lprocfs_add_symlink(obd->obd_name, lov_proc_dir,
+ "../lod/%s", obd->obd_name);
+ if (lod->lod_symlink == NULL)
+ CERROR("cannot create LOV symlink for /proc/fs/lustre/lod/%s\n",
+ obd->obd_name);
RETURN(0);
out:
- lprocfs_obd_cleanup(obd);
+ dt_tunables_fini(&lod->lod_dt_dev);
return rc;
}
+/**
+ * Cleanup procfs entries registred for LOD.
+ *
+ * \param[in] lod LOD device
+ */
void lod_procfs_fini(struct lod_device *lod)
{
struct obd_device *obd = lod2obd(lod);
+ struct kobject *lov;
- if (lod->lod_symlink != NULL)
+ if (lod->lod_symlink != NULL) {
lprocfs_remove(&lod->lod_symlink);
+ lod->lod_symlink = NULL;
+ }
- if (lod->lod_pool_proc_entry != NULL) {
- lprocfs_remove(&lod->lod_pool_proc_entry);
- lod->lod_pool_proc_entry = NULL;
+ lov = kset_find_obj(lustre_kset, "lov");
+ if (lov) {
+ sysfs_remove_link(lov, obd->obd_name);
+ kobject_put(lov);
+ }
+
+ if (!IS_ERR_OR_NULL(lod->lod_debugfs))
+ ldebugfs_remove(&lod->lod_debugfs);
+
+ if (obd->obd_proc_entry) {
+ lprocfs_remove(&obd->obd_proc_entry);
+ obd->obd_proc_entry = NULL;
}
- lprocfs_obd_cleanup(obd);
+ dt_tunables_fini(&lod->lod_dt_dev);
}
-#endif /* LPROCFS */
+#endif /* CONFIG_PROC_FS */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff