X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fosd-ldiskfs%2Fosd_lproc.c;h=e2cc801f601629417c6bb47c9e996ad3e7611933;hb=8a84c7f9c7d65f6f880be6fe4d94fca26a405d81;hp=4812342c895b069bc4144459c5b34703130a4848;hpb=aff399789fe456d8dc58f49cd490c94916b2a46f;p=fs%2Flustre-release.git

diff --git a/lustre/osd-ldiskfs/osd_lproc.c b/lustre/osd-ldiskfs/osd_lproc.c
index 4812342..e2cc801 100644
--- a/lustre/osd-ldiskfs/osd_lproc.c
+++ b/lustre/osd-ldiskfs/osd_lproc.c
@@ -15,11 +15,7 @@
  *
  * 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
  */
@@ -31,7 +27,6 @@
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
  *
  * lustre/osd/osd_lproc.c
  *
@@ -41,168 +36,52 @@
 #define DEBUG_SUBSYSTEM S_OSD
 
 #include <lprocfs_status.h>
-#include <lustre/lustre_idl.h>
 
 #include "osd_internal.h"
 
-#ifdef CONFIG_PROC_FS
-
 void osd_brw_stats_update(struct osd_device *osd, struct osd_iobuf *iobuf)
 {
-        struct brw_stats *s = &osd->od_brw_stats;
+	struct brw_stats *bs = &osd->od_brw_stats;
 	sector_t	 *last_block = NULL;
-        struct page     **pages = iobuf->dr_pages;
-        struct page      *last_page = NULL;
-        unsigned long     discont_pages = 0;
-        unsigned long     discont_blocks = 0;
+	struct page     **pages = iobuf->dr_pages;
+	struct page      *last_page = NULL;
+	unsigned long     discont_pages = 0;
+	unsigned long     discont_blocks = 0;
 	sector_t	 *blocks = iobuf->dr_blocks;
-        int               i, nr_pages = iobuf->dr_npages;
-        int               blocks_per_page;
-        int               rw = iobuf->dr_rw;
-
-        if (unlikely(nr_pages == 0))
-                return;
-
-	blocks_per_page = PAGE_CACHE_SIZE >> osd_sb(osd)->s_blocksize_bits;
-
-        lprocfs_oh_tally_log2(&s->hist[BRW_R_PAGES+rw], nr_pages);
-
-        while (nr_pages-- > 0) {
-                if (last_page && (*pages)->index != (last_page->index + 1))
-                        discont_pages++;
-                last_page = *pages;
-                pages++;
-                for (i = 0; i < blocks_per_page; i++) {
-                        if (last_block && *blocks != (*last_block + 1))
-                                discont_blocks++;
-                        last_block = blocks++;
-                }
-        }
-
-        lprocfs_oh_tally(&s->hist[BRW_R_DISCONT_PAGES+rw], discont_pages);
-        lprocfs_oh_tally(&s->hist[BRW_R_DISCONT_BLOCKS+rw], discont_blocks);
-}
-
-#define pct(a, b) (b ? a * 100 / b : 0)
-
-static void display_brw_stats(struct seq_file *seq, char *name, char *units,
-        struct obd_histogram *read, struct obd_histogram *write, int scale)
-{
-        unsigned long read_tot, write_tot, r, w, read_cum = 0, write_cum = 0;
-        int i;
-
-        seq_printf(seq, "\n%26s read      |     write\n", " ");
-        seq_printf(seq, "%-22s %-5s %% cum %% |  %-11s %% cum %%\n",
-                   name, units, units);
-
-        read_tot = lprocfs_oh_sum(read);
-        write_tot = lprocfs_oh_sum(write);
-        for (i = 0; i < OBD_HIST_MAX; i++) {
-                r = read->oh_buckets[i];
-                w = write->oh_buckets[i];
-                read_cum += r;
-                write_cum += w;
-                if (read_cum == 0 && write_cum == 0)
-                        continue;
-
-                if (!scale)
-                        seq_printf(seq, "%u", i);
-                else if (i < 10)
-                        seq_printf(seq, "%u", scale << i);
-                else if (i < 20)
-                        seq_printf(seq, "%uK", scale << (i-10));
-                else
-                        seq_printf(seq, "%uM", scale << (i-20));
-
-                seq_printf(seq, ":\t\t%10lu %3lu %3lu   | %4lu %3lu %3lu\n",
-                           r, pct(r, read_tot), pct(read_cum, read_tot),
-                           w, pct(w, write_tot), pct(write_cum, write_tot));
-
-                if (read_cum == read_tot && write_cum == write_tot)
-                        break;
-        }
-}
-
-static void brw_stats_show(struct seq_file *seq, struct brw_stats *brw_stats)
-{
-	struct timeval now;
-
-	/* this sampling races with updates */
-	do_gettimeofday(&now);
-	seq_printf(seq, "snapshot_time:         %lu.%lu (secs.usecs)\n",
-		   now.tv_sec, now.tv_usec);
-
-        display_brw_stats(seq, "pages per bulk r/w", "rpcs",
-                          &brw_stats->hist[BRW_R_PAGES],
-                          &brw_stats->hist[BRW_W_PAGES], 1);
-
-        display_brw_stats(seq, "discontiguous pages", "rpcs",
-                          &brw_stats->hist[BRW_R_DISCONT_PAGES],
-                          &brw_stats->hist[BRW_W_DISCONT_PAGES], 0);
-
-        display_brw_stats(seq, "discontiguous blocks", "rpcs",
-                          &brw_stats->hist[BRW_R_DISCONT_BLOCKS],
-                          &brw_stats->hist[BRW_W_DISCONT_BLOCKS], 0);
-
-        display_brw_stats(seq, "disk fragmented I/Os", "ios",
-                          &brw_stats->hist[BRW_R_DIO_FRAGS],
-                          &brw_stats->hist[BRW_W_DIO_FRAGS], 0);
-
-        display_brw_stats(seq, "disk I/Os in flight", "ios",
-                          &brw_stats->hist[BRW_R_RPC_HIST],
-                          &brw_stats->hist[BRW_W_RPC_HIST], 0);
-
-	display_brw_stats(seq, "I/O time (1/1000s)", "ios",
-			  &brw_stats->hist[BRW_R_IO_TIME],
-			  &brw_stats->hist[BRW_W_IO_TIME],
-			  jiffies_to_msecs(1000) / MSEC_PER_SEC);
-
-        display_brw_stats(seq, "disk I/O size", "ios",
-                          &brw_stats->hist[BRW_R_DISK_IOSIZE],
-                          &brw_stats->hist[BRW_W_DISK_IOSIZE], 1);
-}
-
-#undef pct
-
-static int osd_brw_stats_seq_show(struct seq_file *seq, void *v)
-{
-        struct osd_device *osd = seq->private;
-
-        brw_stats_show(seq, &osd->od_brw_stats);
-
-        return 0;
-}
-
-static ssize_t osd_brw_stats_seq_write(struct file *file, const char *buf,
-                                       size_t len, loff_t *off)
-{
-        struct seq_file *seq = file->private_data;
-        struct osd_device *osd = seq->private;
-        int i;
-
-        for (i = 0; i < BRW_LAST; i++)
-                lprocfs_oh_clear(&osd->od_brw_stats.hist[i]);
+	int               i, nr_pages = iobuf->dr_npages;
+	int               blocks_per_page;
+	int               rw = iobuf->dr_rw;
+
+	if (unlikely(nr_pages == 0))
+		return;
+
+	blocks_per_page = PAGE_SIZE >> osd_sb(osd)->s_blocksize_bits;
+
+	lprocfs_oh_tally_log2(&bs->bs_hist[BRW_R_PAGES + rw], nr_pages);
+
+	while (nr_pages-- > 0) {
+		if (last_page && (*pages)->index != (last_page->index + 1))
+			discont_pages++;
+		last_page = *pages;
+		pages++;
+		for (i = 0; i < blocks_per_page; i++) {
+			if (last_block && *blocks != (*last_block + 1))
+				discont_blocks++;
+			last_block = blocks++;
+		}
+	}
 
-        return len;
+	lprocfs_oh_tally(&bs->bs_hist[BRW_R_DISCONT_PAGES+rw], discont_pages);
+	lprocfs_oh_tally(&bs->bs_hist[BRW_R_DISCONT_BLOCKS+rw], discont_blocks);
 }
 
-LPROC_SEQ_FOPS(osd_brw_stats);
-
 static int osd_stats_init(struct osd_device *osd)
 {
-        int i, result;
-        ENTRY;
-
-        for (i = 0; i < BRW_LAST; i++)
-		spin_lock_init(&osd->od_brw_stats.hist[i].oh_lock);
+	int result = -ENOMEM;
 
+	ENTRY;
         osd->od_stats = lprocfs_alloc_stats(LPROC_OSD_LAST, 0);
-        if (osd->od_stats != NULL) {
-                result = lprocfs_register_stats(osd->od_proc_entry, "stats",
-                                                osd->od_stats);
-                if (result)
-                        GOTO(out, result);
-
+	if (osd->od_stats) {
                 lprocfs_counter_init(osd->od_stats, LPROC_OSD_GET_PAGE,
                                      LPROCFS_CNTR_AVGMINMAX|LPROCFS_CNTR_STDDEV,
                                      "get_page", "usec");
@@ -229,213 +108,312 @@ static int osd_stats_init(struct osd_device *osd)
                                      LPROCFS_CNTR_AVGMINMAX,
                                      "thandle closing", "usec");
 #endif
-		result = lprocfs_seq_create(osd->od_proc_entry, "brw_stats",
-					    0644, &osd_brw_stats_fops, osd);
-        } else
-                result = -ENOMEM;
+		result = 0;
+	}
 
-out:
-        RETURN(result);
+	ldebugfs_register_osd_stats(osd->od_dt_dev.dd_debugfs_entry,
+				    &osd->od_brw_stats, osd->od_stats);
+
+	RETURN(result);
 }
 
-static int ldiskfs_osd_fstype_seq_show(struct seq_file *m, void *data)
+static ssize_t fstype_show(struct kobject *kobj, struct attribute *attr,
+			   char *buf)
 {
-	struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
-
-	LASSERT(osd != NULL);
-	seq_puts(m, "ldiskfs\n");
-	return 0;
+	return sprintf(buf, "ldiskfs\n");
 }
-LPROC_SEQ_FOPS_RO(ldiskfs_osd_fstype);
+LUSTRE_RO_ATTR(fstype);
 
-static int ldiskfs_osd_mntdev_seq_show(struct seq_file *m, void *data)
+static ssize_t mntdev_show(struct kobject *kobj, struct attribute *attr,
+			   char *buf)
 {
-	struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
+	struct osd_device *osd = osd_dt_dev(dt);
 
-	LASSERT(osd != NULL);
-	if (unlikely(osd->od_mnt == NULL))
+	LASSERT(osd);
+	if (unlikely(!osd->od_mnt))
 		return -EINPROGRESS;
 
-	seq_printf(m, "%s\n", osd->od_mntdev);
-	return 0;
+	return sprintf(buf, "%s\n", osd->od_mntdev);
 }
-LPROC_SEQ_FOPS_RO(ldiskfs_osd_mntdev);
+LUSTRE_RO_ATTR(mntdev);
 
-static int ldiskfs_osd_cache_seq_show(struct seq_file *m, void *data)
+static ssize_t read_cache_enable_show(struct kobject *kobj,
+				      struct attribute *attr,
+				      char *buf)
 {
-	struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
+	struct osd_device *osd = osd_dt_dev(dt);
 
-	LASSERT(osd != NULL);
-	if (unlikely(osd->od_mnt == NULL))
+	LASSERT(osd);
+	if (unlikely(!osd->od_mnt))
 		return -EINPROGRESS;
 
-	seq_printf(m, "%u\n", osd->od_read_cache);
-	return 0;
+	return sprintf(buf, "%u\n", osd->od_read_cache);
 }
 
-static ssize_t
-ldiskfs_osd_cache_seq_write(struct file *file, const char *buffer,
-			    size_t count, loff_t *off)
+static ssize_t read_cache_enable_store(struct kobject *kobj,
+				       struct attribute *attr,
+				       const char *buffer, size_t count)
 {
-	struct seq_file	  *m = file->private_data;
-	struct dt_device  *dt = m->private;
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
 	struct osd_device *osd = osd_dt_dev(dt);
-	int		   val, rc;
+	bool val;
+	int rc;
 
-	LASSERT(osd != NULL);
-	if (unlikely(osd->od_mnt == NULL))
+	LASSERT(osd);
+	if (unlikely(!osd->od_mnt))
 		return -EINPROGRESS;
 
-	rc = lprocfs_write_helper(buffer, count, &val);
+	rc = kstrtobool(buffer, &val);
 	if (rc)
 		return rc;
 
 	osd->od_read_cache = !!val;
 	return count;
 }
-LPROC_SEQ_FOPS(ldiskfs_osd_cache);
+LUSTRE_RW_ATTR(read_cache_enable);
 
-static int ldiskfs_osd_wcache_seq_show(struct seq_file *m, void *data)
+static ssize_t writethrough_cache_enable_show(struct kobject *kobj,
+					      struct attribute *attr,
+					      char *buf)
 {
-	struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
+	struct osd_device *osd = osd_dt_dev(dt);
 
-	LASSERT(osd != NULL);
-	if (unlikely(osd->od_mnt == NULL))
+	LASSERT(osd);
+	if (unlikely(!osd->od_mnt))
 		return -EINPROGRESS;
 
-	seq_printf(m, "%u\n", osd->od_writethrough_cache);
-	return 0;
+	return sprintf(buf, "%u\n", osd->od_writethrough_cache);
 }
 
-static ssize_t
-ldiskfs_osd_wcache_seq_write(struct file *file, const char *buffer,
-				size_t count, loff_t *off)
+static ssize_t writethrough_cache_enable_store(struct kobject *kobj,
+					       struct attribute *attr,
+					       const char *buffer,
+					       size_t count)
 {
-	struct seq_file	  *m = file->private_data;
-	struct dt_device  *dt = m->private;
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
 	struct osd_device *osd = osd_dt_dev(dt);
-	int		   val, rc;
+	bool val;
+	int rc;
 
-	LASSERT(osd != NULL);
-	if (unlikely(osd->od_mnt == NULL))
+	LASSERT(osd);
+	if (unlikely(!osd->od_mnt))
 		return -EINPROGRESS;
 
-	rc = lprocfs_write_helper(buffer, count, &val);
+	rc = kstrtobool(buffer, &val);
 	if (rc)
 		return rc;
 
 	osd->od_writethrough_cache = !!val;
 	return count;
 }
-LPROC_SEQ_FOPS(ldiskfs_osd_wcache);
+LUSTRE_RW_ATTR(writethrough_cache_enable);
 
-static ssize_t
-lprocfs_osd_force_sync_seq_write(struct file *file, const char *buffer,
-					size_t count, loff_t *off)
+static ssize_t fallocate_zero_blocks_show(struct kobject *kobj,
+					  struct attribute *attr,
+					  char *buf)
 {
-	struct seq_file	  *m = file->private_data;
-	struct dt_device  *dt = m->private;
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
 	struct osd_device *osd = osd_dt_dev(dt);
-	struct lu_env	   env;
-	int		   rc;
 
-	LASSERT(osd != NULL);
-	if (unlikely(osd->od_mnt == NULL))
+	LASSERT(osd);
+	if (unlikely(!osd->od_mnt))
+		return -EINPROGRESS;
+
+	return scnprintf(buf, PAGE_SIZE, "%d\n", osd->od_fallocate_zero_blocks);
+}
+
+/*
+ * Set how fallocate() interacts with the backing filesystem:
+ * -1: fallocate is disabled and returns -EOPNOTSUPP
+ *  0: fallocate allocates unwritten extents (like ext4)
+ *  1: fallocate zeroes allocated extents on disk
+ */
+static ssize_t fallocate_zero_blocks_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 osd_device *osd = osd_dt_dev(dt);
+	long val;
+	int rc;
+
+	LASSERT(osd);
+	if (unlikely(!osd->od_mnt))
+		return -EINPROGRESS;
+
+	rc = kstrtol(buffer, 0, &val);
+	if (rc)
+		return rc;
+
+	if (val < -1 || val > 1)
+		return -EINVAL;
+
+	osd->od_fallocate_zero_blocks = val;
+	return count;
+}
+LUSTRE_RW_ATTR(fallocate_zero_blocks);
+
+ssize_t force_sync_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 osd_device *osd = osd_dt_dev(dt);
+	struct lu_env env;
+	int rc;
+
+	LASSERT(osd);
+	if (unlikely(!osd->od_mnt))
 		return -EINPROGRESS;
 
 	rc = lu_env_init(&env, LCT_LOCAL);
 	if (rc)
 		return rc;
+
 	rc = dt_sync(&env, dt);
 	lu_env_fini(&env);
 
 	return rc == 0 ? count : rc;
 }
-LPROC_SEQ_FOPS_WO_TYPE(ldiskfs, osd_force_sync);
+LUSTRE_WO_ATTR(force_sync);
 
-static int ldiskfs_osd_pdo_seq_show(struct seq_file *m, void *data)
+static ssize_t nonrotational_show(struct kobject *kobj, struct attribute *attr,
+				  char *buf)
 {
-	seq_printf(m, "%s\n", ldiskfs_pdo ? "ON" : "OFF");
-	return 0;
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
+	struct osd_device *osd = osd_dt_dev(dt);
+
+	LASSERT(osd);
+	if (unlikely(!osd->od_mnt))
+		return -EINPROGRESS;
+
+	return sprintf(buf, "%u\n", osd->od_nonrotational);
 }
 
-static ssize_t
-ldiskfs_osd_pdo_seq_write(struct file *file, const char *buffer,
-				size_t count, loff_t *off)
+static ssize_t nonrotational_store(struct kobject *kobj,
+				   struct attribute *attr, const char *buffer,
+				   size_t count)
 {
-	int pdo, rc;
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
+	struct osd_device *osd = osd_dt_dev(dt);
+	bool val;
+	int rc;
 
-        rc = lprocfs_write_helper(buffer, count, &pdo);
-        if (rc != 0)
-                return rc;
+	LASSERT(osd);
+	if (unlikely(!osd->od_mnt))
+		return -EINPROGRESS;
 
-        ldiskfs_pdo = !!pdo;
+	rc = kstrtobool(buffer, &val);
+	if (rc)
+		return rc;
 
-        return count;
+	osd->od_nonrotational = val;
+	return count;
 }
-LPROC_SEQ_FOPS(ldiskfs_osd_pdo);
+LUSTRE_RW_ATTR(nonrotational);
 
-static int ldiskfs_osd_auto_scrub_seq_show(struct seq_file *m, void *data)
+static ssize_t pdo_show(struct kobject *kobj, struct attribute *attr,
+			char *buf)
 {
-	struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
+	return sprintf(buf, "%s\n", ldiskfs_pdo ? "ON" : "OFF");
+}
 
-	LASSERT(dev != NULL);
-	if (unlikely(dev->od_mnt == NULL))
+static ssize_t pdo_store(struct kobject *kobj, struct attribute *attr,
+			 const char *buffer, size_t count)
+{
+	bool pdo;
+	int rc;
+
+	rc = kstrtobool(buffer, &pdo);
+	if (rc != 0)
+		return rc;
+
+	ldiskfs_pdo = pdo;
+
+	return count;
+}
+LUSTRE_RW_ATTR(pdo);
+
+static ssize_t auto_scrub_show(struct kobject *kobj, struct attribute *attr,
+			       char *buf)
+{
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
+	struct osd_device *dev = osd_dt_dev(dt);
+
+	LASSERT(dev);
+	if (unlikely(!dev->od_mnt))
 		return -EINPROGRESS;
 
-	seq_printf(m, "%d\n", !dev->od_noscrub);
-	return 0;
+	return scnprintf(buf, PAGE_SIZE, "%lld\n",
+			 dev->od_scrub.os_scrub.os_auto_scrub_interval);
 }
 
-static ssize_t
-ldiskfs_osd_auto_scrub_seq_write(struct file *file, const char *buffer,
-					size_t count, loff_t *off)
+static ssize_t auto_scrub_store(struct kobject *kobj, struct attribute *attr,
+				const char *buffer, size_t count)
 {
-	struct seq_file	  *m = file->private_data;
-	struct dt_device  *dt = m->private;
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
 	struct osd_device *dev = osd_dt_dev(dt);
-	int val, rc;
+	s64 val;
+	int rc;
 
-	LASSERT(dev != NULL);
-	if (unlikely(dev->od_mnt == NULL))
+	LASSERT(dev);
+	if (unlikely(!dev->od_mnt))
 		return -EINPROGRESS;
 
-	rc = lprocfs_write_helper(buffer, count, &val);
+	rc = kstrtoll(buffer, 0, &val);
 	if (rc)
 		return rc;
 
-	dev->od_noscrub = !val;
+	dev->od_scrub.os_scrub.os_auto_scrub_interval = val;
 	return count;
 }
-LPROC_SEQ_FOPS(ldiskfs_osd_auto_scrub);
+LUSTRE_RW_ATTR(auto_scrub);
 
-static int ldiskfs_osd_full_scrub_ratio_seq_show(struct seq_file *m, void *data)
+static ssize_t full_scrub_ratio_show(struct kobject *kobj,
+				     struct attribute *attr,
+				     char *buf)
 {
-	struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
+	struct osd_device *dev = osd_dt_dev(dt);
 
-	LASSERT(dev != NULL);
-	if (unlikely(dev->od_mnt == NULL))
+	LASSERT(dev);
+	if (unlikely(!dev->od_mnt))
 		return -EINPROGRESS;
 
-	seq_printf(m, LPU64"\n", dev->od_full_scrub_ratio);
-	return 0;
+	return sprintf(buf, "%llu\n", dev->od_full_scrub_ratio);
 }
 
-static ssize_t
-ldiskfs_osd_full_scrub_ratio_seq_write(struct file *file, const char *buffer,
-				       size_t count, loff_t *off)
+static ssize_t full_scrub_ratio_store(struct kobject *kobj,
+				      struct attribute *attr,
+				      const char *buffer, size_t count)
 {
-	struct seq_file	  *m = file->private_data;
-	struct dt_device  *dt = m->private;
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
 	struct osd_device *dev = osd_dt_dev(dt);
-	int val, rc;
+	s64 val;
+	int rc;
 
-	LASSERT(dev != NULL);
-	if (unlikely(dev->od_mnt == NULL))
+	LASSERT(dev);
+	if (unlikely(!dev->od_mnt))
 		return -EINPROGRESS;
 
-	rc = lprocfs_write_helper(buffer, count, &val);
-	if (rc != 0)
+	rc = kstrtoll(buffer, 0, &val);
+	if (rc)
 		return rc;
 
 	if (val < 0)
@@ -444,72 +422,64 @@ ldiskfs_osd_full_scrub_ratio_seq_write(struct file *file, const char *buffer,
 	dev->od_full_scrub_ratio = val;
 	return count;
 }
-LPROC_SEQ_FOPS(ldiskfs_osd_full_scrub_ratio);
+LUSTRE_RW_ATTR(full_scrub_ratio);
 
-static int ldiskfs_osd_full_scrub_threshold_rate_seq_show(struct seq_file *m,
-							  void *data)
+static ssize_t full_scrub_threshold_rate_show(struct kobject *kobj,
+					      struct attribute *attr,
+					      char *buf)
 {
-	struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
+	struct osd_device *dev = osd_dt_dev(dt);
 
-	LASSERT(dev != NULL);
-	if (unlikely(dev->od_mnt == NULL))
+	LASSERT(dev);
+	if (unlikely(!dev->od_mnt))
 		return -EINPROGRESS;
 
-	seq_printf(m, LPU64" (bad OI mappings/minute)\n",
-		   dev->od_full_scrub_threshold_rate);
-	return 0;
+	return sprintf(buf, "%llu (bad OI mappings/minute)\n",
+		       dev->od_full_scrub_threshold_rate);
 }
 
-static ssize_t
-ldiskfs_osd_full_scrub_threshold_rate_seq_write(struct file *file,
-						const char *buffer,
-						size_t count, loff_t *off)
+static ssize_t full_scrub_threshold_rate_store(struct kobject *kobj,
+					       struct attribute *attr,
+					       const char *buffer, size_t count)
 {
-	struct seq_file	  *m = file->private_data;
-	struct dt_device  *dt = m->private;
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
 	struct osd_device *dev = osd_dt_dev(dt);
-	int val, rc;
+	u64 val;
+	int rc;
 
-	LASSERT(dev != NULL);
-	if (unlikely(dev->od_mnt == NULL))
+	LASSERT(dev);
+	if (unlikely(!dev->od_mnt))
 		return -EINPROGRESS;
 
-	rc = lprocfs_write_helper(buffer, count, &val);
+	rc = kstrtoull(buffer, 0, &val);
 	if (rc != 0)
 		return rc;
 
-	if (val < 0)
-		return -EINVAL;
-
 	dev->od_full_scrub_threshold_rate = val;
 	return count;
 }
-LPROC_SEQ_FOPS(ldiskfs_osd_full_scrub_threshold_rate);
+LUSTRE_RW_ATTR(full_scrub_threshold_rate);
 
-static int
-ldiskfs_osd_track_declares_assert_seq_show(struct seq_file *m, void *data)
+static ssize_t extent_bytes_allocation_show(struct kobject *kobj,
+					    struct attribute *attr, char *buf)
 {
-	seq_printf(m, "%d\n", ldiskfs_track_declares_assert);
-	return 0;
-}
-
-static ssize_t
-ldiskfs_osd_track_declares_assert_seq_write(struct file *file,
-						const char *buffer,
-						size_t count, loff_t *off)
-{
-	int     track_declares_assert;
-	int     rc;
-
-	rc = lprocfs_write_helper(buffer, count, &track_declares_assert);
-	if (rc != 0)
-		return rc;
-
-	ldiskfs_track_declares_assert = !!track_declares_assert;
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
+	struct osd_device *dev = osd_dt_dev(dt);
+	int i;
+	unsigned int min = (unsigned int)(~0), cur;
 
-	return count;
+	for_each_online_cpu(i) {
+		cur = *per_cpu_ptr(dev->od_extent_bytes_percpu, i);
+		if (cur < min)
+			min = cur;
+	}
+	return snprintf(buf, PAGE_SIZE, "%u\n", min);
 }
-LPROC_SEQ_FOPS(ldiskfs_osd_track_declares_assert);
+LUSTRE_RO_ATTR(extent_bytes_allocation);
 
 static int ldiskfs_osd_oi_scrub_seq_show(struct seq_file *m, void *data)
 {
@@ -519,9 +489,11 @@ static int ldiskfs_osd_oi_scrub_seq_show(struct seq_file *m, void *data)
 	if (unlikely(dev->od_mnt == NULL))
 		return -EINPROGRESS;
 
-	return osd_scrub_dump(m, dev);
+	osd_scrub_dump(m, dev);
+	return 0;
 }
-LPROC_SEQ_FOPS_RO(ldiskfs_osd_oi_scrub);
+
+LDEBUGFS_SEQ_FOPS_RO(ldiskfs_osd_oi_scrub);
 
 static int ldiskfs_osd_readcache_seq_show(struct seq_file *m, void *data)
 {
@@ -531,69 +503,175 @@ static int ldiskfs_osd_readcache_seq_show(struct seq_file *m, void *data)
 	if (unlikely(osd->od_mnt == NULL))
 		return -EINPROGRESS;
 
-	seq_printf(m, LPU64"\n", osd->od_readcache_max_filesize);
+	seq_printf(m, "%llu\n", osd->od_readcache_max_filesize);
 	return 0;
 }
 
 static ssize_t
-ldiskfs_osd_readcache_seq_write(struct file *file, const char *buffer,
+ldiskfs_osd_readcache_seq_write(struct file *file, const char __user *buffer,
 				size_t count, loff_t *off)
 {
-	struct seq_file	  *m = file->private_data;
-	struct dt_device  *dt = m->private;
+	struct seq_file *m = file->private_data;
+	struct dt_device *dt = m->private;
 	struct osd_device *osd = osd_dt_dev(dt);
-	__u64		   val;
-	int		   rc;
+	char kernbuf[22] = "";
+	u64 val;
+	int rc;
 
 	LASSERT(osd != NULL);
 	if (unlikely(osd->od_mnt == NULL))
 		return -EINPROGRESS;
 
-	rc = lprocfs_write_u64_helper(buffer, count, &val);
-	if (rc)
+	if (count >= sizeof(kernbuf))
+		return -EINVAL;
+
+	if (copy_from_user(kernbuf, buffer, count))
+		return -EFAULT;
+	kernbuf[count] = 0;
+
+	rc = sysfs_memparse(kernbuf, count, &val, "B");
+	if (rc < 0)
 		return rc;
 
 	osd->od_readcache_max_filesize = val > OSD_MAX_CACHE_SIZE ?
 					 OSD_MAX_CACHE_SIZE : val;
 	return count;
 }
-LPROC_SEQ_FOPS(ldiskfs_osd_readcache);
 
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
-static int ldiskfs_osd_index_in_idif_seq_show(struct seq_file *m, void *data)
+LDEBUGFS_SEQ_FOPS(ldiskfs_osd_readcache);
+
+static int ldiskfs_osd_readcache_max_io_seq_show(struct seq_file *m, void *data)
 {
-	struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
+	struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
 
-	LASSERT(dev != NULL);
-	if (unlikely(dev->od_mnt == NULL))
+	LASSERT(osd != NULL);
+	if (unlikely(osd->od_mnt == NULL))
 		return -EINPROGRESS;
 
-	seq_printf(m, "%d\n", (int)(dev->od_index_in_idif));
+	seq_printf(m, "%lu\n", osd->od_readcache_max_iosize >> 20);
 	return 0;
 }
 
 static ssize_t
-ldiskfs_osd_index_in_idif_seq_write(struct file *file, const char *buffer,
-				    size_t count, loff_t *off)
+ldiskfs_osd_readcache_max_io_seq_write(struct file *file,
+				       const char __user *buffer,
+				       size_t count, loff_t *off)
 {
-	struct lu_env		 env;
-	struct seq_file		*m	= file->private_data;
-	struct dt_device	*dt	= m->private;
-	struct osd_device	*dev	= osd_dt_dev(dt);
-	struct lu_target	*tgt;
-	int			 val;
-	int			 rc;
+	struct seq_file *m = file->private_data;
+	struct dt_device *dt = m->private;
+	struct osd_device *osd = osd_dt_dev(dt);
+	char kernbuf[22] = "";
+	u64 val;
+	int rc;
 
-	LASSERT(dev != NULL);
-	if (unlikely(dev->od_mnt == NULL))
+	LASSERT(osd != NULL);
+	if (unlikely(osd->od_mnt == NULL))
 		return -EINPROGRESS;
 
-	rc = lprocfs_write_helper(buffer, count, &val);
-	if (rc != 0)
+	if (count >= sizeof(kernbuf))
+		return -EINVAL;
+
+	if (copy_from_user(kernbuf, buffer, count))
+		return -EFAULT;
+	kernbuf[count] = 0;
+
+	rc = sysfs_memparse(kernbuf, count, &val, "MiB");
+	if (rc < 0)
+		return rc;
+
+	if (val > PTLRPC_MAX_BRW_SIZE)
+		return -ERANGE;
+	osd->od_readcache_max_iosize = val;
+	return count;
+}
+
+LDEBUGFS_SEQ_FOPS(ldiskfs_osd_readcache_max_io);
+
+static int ldiskfs_osd_writethrough_max_io_seq_show(struct seq_file *m,
+						    void *data)
+{
+	struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
+
+	LASSERT(osd != NULL);
+	if (unlikely(osd->od_mnt == NULL))
+		return -EINPROGRESS;
+
+	seq_printf(m, "%lu\n", osd->od_writethrough_max_iosize >> 20);
+	return 0;
+}
+
+static ssize_t
+ldiskfs_osd_writethrough_max_io_seq_write(struct file *file,
+				       const char __user *buffer,
+				       size_t count, loff_t *off)
+{
+	struct seq_file *m = file->private_data;
+	struct dt_device *dt = m->private;
+	struct osd_device *osd = osd_dt_dev(dt);
+	char kernbuf[22] = "";
+	u64 val;
+	int rc;
+
+	LASSERT(osd != NULL);
+	if (unlikely(osd->od_mnt == NULL))
+		return -EINPROGRESS;
+
+	if (count >= sizeof(kernbuf))
+		return -EINVAL;
+
+	if (copy_from_user(kernbuf, buffer, count))
+		return -EFAULT;
+	kernbuf[count] = 0;
+
+	rc = sysfs_memparse(kernbuf, count, &val, "MiB");
+	if (rc < 0)
+		return rc;
+
+	if (val > PTLRPC_MAX_BRW_SIZE)
+		return -ERANGE;
+	osd->od_writethrough_max_iosize = val;
+	return count;
+}
+
+LDEBUGFS_SEQ_FOPS(ldiskfs_osd_writethrough_max_io);
+
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 52, 0)
+static ssize_t index_in_idif_show(struct kobject *kobj, struct attribute *attr,
+				  char *buf)
+{
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
+	struct osd_device *dev = osd_dt_dev(dt);
+
+	LASSERT(dev);
+	if (unlikely(!dev->od_mnt))
+		return -EINPROGRESS;
+
+	return sprintf(buf, "%d\n", (int)(dev->od_index_in_idif));
+}
+
+static ssize_t index_in_idif_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 osd_device *dev = osd_dt_dev(dt);
+	struct lu_target *tgt;
+	struct lu_env env;
+	bool val;
+	int rc;
+
+	LASSERT(dev);
+	if (unlikely(!dev->od_mnt))
+		return -EINPROGRESS;
+
+	rc = kstrtobool(buffer, &val);
+	if (rc)
 		return rc;
 
 	if (dev->od_index_in_idif) {
-		if (val != 0)
+		if (val)
 			return count;
 
 		LCONSOLE_WARN("%s: OST-index in IDIF has been enabled, "
@@ -601,11 +679,11 @@ ldiskfs_osd_index_in_idif_seq_write(struct file *file, const char *buffer,
 		return -EPERM;
 	}
 
-	if (val == 0)
+	if (!val)
 		return count;
 
 	rc = lu_env_init(&env, LCT_DT_THREAD);
-	if (rc != 0)
+	if (rc)
 		return rc;
 
 	tgt = dev->od_dt_dev.dd_lu_dev.ld_site->ls_tgt;
@@ -621,94 +699,116 @@ ldiskfs_osd_index_in_idif_seq_write(struct file *file, const char *buffer,
 	dev->od_index_in_idif = 1;
 	return count;
 }
-LPROC_SEQ_FOPS(ldiskfs_osd_index_in_idif);
+LUSTRE_RW_ATTR(index_in_idif);
 
 int osd_register_proc_index_in_idif(struct osd_device *osd)
 {
-	struct proc_dir_entry *proc;
+	struct dt_device *dt = &osd->od_dt_dev;
 
-	proc = proc_create_data("index_in_idif", 0, osd->od_proc_entry,
-				&ldiskfs_osd_index_in_idif_fops,
-				&osd->od_dt_dev);
-	if (proc == NULL)
-		return -ENOMEM;
-
-	return 0;
+	return sysfs_create_file(&dt->dd_kobj, &lustre_attr_index_in_idif.attr);
 }
 #endif
 
-LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_blksize);
-LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_kbytestotal);
-LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_kbytesfree);
-LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_kbytesavail);
-LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_filestotal);
-LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_filesfree);
-
-struct lprocfs_vars lprocfs_osd_obd_vars[] = {
-	{ .name	=	"blocksize",
-	  .fops	=	&ldiskfs_dt_blksize_fops	},
-	{ .name	=	"kbytestotal",
-	  .fops	=	&ldiskfs_dt_kbytestotal_fops	},
-	{ .name	=	"kbytesfree",
-	  .fops	=	&ldiskfs_dt_kbytesfree_fops	},
-	{ .name	=	"kbytesavail",
-	  .fops	=	&ldiskfs_dt_kbytesavail_fops	},
-	{ .name	=	"filestotal",
-	  .fops	=	&ldiskfs_dt_filestotal_fops	},
-	{ .name	=	"filesfree",
-	  .fops	=	&ldiskfs_dt_filesfree_fops	},
-	{ .name	=	"fstype",
-	  .fops	=	&ldiskfs_osd_fstype_fops	},
-	{ .name	=	"mntdev",
-	  .fops	=	&ldiskfs_osd_mntdev_fops	},
-	{ .name	=	"force_sync",
-	  .fops	=	&ldiskfs_osd_force_sync_fops	},
-	{ .name	=	"pdo",
-	  .fops	=	&ldiskfs_osd_pdo_fops		},
-	{ .name	=	"auto_scrub",
-	  .fops	=	&ldiskfs_osd_auto_scrub_fops	},
-	{ .name	=	"full_scrub_ratio",
-	  .fops	=	&ldiskfs_osd_full_scrub_ratio_fops	},
-	{ .name	=	"full_scrub_threshold_rate",
-	  .fops	=	&ldiskfs_osd_full_scrub_threshold_rate_fops	},
+static ssize_t index_backup_show(struct kobject *kobj, struct attribute *attr,
+				 char *buf)
+{
+	struct dt_device *dt = container_of(kobj, struct dt_device,
+					    dd_kobj);
+	struct osd_device *dev = osd_dt_dev(dt);
+
+	LASSERT(dev);
+	if (unlikely(!dev->od_mnt))
+		return -EINPROGRESS;
+
+	return sprintf(buf, "%d\n", dev->od_index_backup_policy);
+}
+
+ssize_t index_backup_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 osd_device *dev = osd_dt_dev(dt);
+	int val;
+	int rc;
+
+	LASSERT(dev);
+	if (unlikely(!dev->od_mnt))
+		return -EINPROGRESS;
+
+	rc = kstrtoint(buffer, 0, &val);
+	if (rc)
+		return rc;
+
+	dev->od_index_backup_policy = val;
+	return count;
+}
+LUSTRE_RW_ATTR(index_backup);
+
+struct ldebugfs_vars ldebugfs_osd_obd_vars[] = {
 	{ .name	=	"oi_scrub",
 	  .fops	=	&ldiskfs_osd_oi_scrub_fops	},
-	{ .name	=	"read_cache_enable",
-	  .fops	=	&ldiskfs_osd_cache_fops		},
-	{ .name	=	"writethrough_cache_enable",
-	  .fops	=	&ldiskfs_osd_wcache_fops	},
 	{ .name	=	"readcache_max_filesize",
 	  .fops	=	&ldiskfs_osd_readcache_fops	},
+	{ .name	=	"readcache_max_io_mb",
+	  .fops	=	&ldiskfs_osd_readcache_max_io_fops	},
+	{ .name	=	"writethrough_max_io_mb",
+	  .fops	=	&ldiskfs_osd_writethrough_max_io_fops	},
 	{ NULL }
 };
 
-struct lprocfs_vars lprocfs_osd_module_vars[] = {
-	{ .name	=	"track_declares_assert",
-	  .fops	=	&ldiskfs_osd_track_declares_assert_fops		},
-	{ NULL }
+static struct attribute *ldiskfs_attrs[] = {
+	&lustre_attr_read_cache_enable.attr,
+	&lustre_attr_writethrough_cache_enable.attr,
+	&lustre_attr_fstype.attr,
+	&lustre_attr_mntdev.attr,
+	&lustre_attr_fallocate_zero_blocks.attr,
+	&lustre_attr_force_sync.attr,
+	&lustre_attr_nonrotational.attr,
+	&lustre_attr_index_backup.attr,
+	&lustre_attr_auto_scrub.attr,
+	&lustre_attr_pdo.attr,
+	&lustre_attr_full_scrub_ratio.attr,
+	&lustre_attr_full_scrub_threshold_rate.attr,
+	&lustre_attr_extent_bytes_allocation.attr,
+	NULL,
 };
 
-
 int osd_procfs_init(struct osd_device *osd, const char *name)
 {
 	struct obd_type	*type;
-	int		rc;
-	ENTRY;
+	int rc;
 
-	if (osd->od_proc_entry)
-		RETURN(0);
+	ENTRY;
 
 	/* at the moment there is no linkage between lu_type
-	 * and obd_type, so we lookup obd_type this way */
+	 * and obd_type, so we lookup obd_type this way
+	 */
 	type = class_search_type(LUSTRE_OSD_LDISKFS_NAME);
 
-	LASSERT(name != NULL);
-	LASSERT(type != NULL);
+	LASSERT(name);
+	LASSERT(type);
+
+	CDEBUG(D_CONFIG, "%s: register osd-ldiskfs tunable parameters\n", name);
+
+	/* put reference taken by class_search_type */
+	kobject_put(&type->typ_kobj);
+
+	osd->od_dt_dev.dd_ktype.default_attrs = ldiskfs_attrs;
+	rc = dt_tunables_init(&osd->od_dt_dev, type, name,
+			      ldebugfs_osd_obd_vars);
+	if (rc) {
+		CERROR("%s: cannot setup sysfs / debugfs entry: %d\n",
+		       name, rc);
+		GOTO(out, rc);
+	}
+
+	if (osd->od_proc_entry)
+		RETURN(0);
 
 	/* Find the type procroot and add the proc entry for this device */
 	osd->od_proc_entry = lprocfs_register(name, type->typ_procroot,
-					      lprocfs_osd_obd_vars,
-					      &osd->od_dt_dev);
+					      NULL, &osd->od_dt_dev);
 	if (IS_ERR(osd->od_proc_entry)) {
 		rc = PTR_ERR(osd->od_proc_entry);
 		CERROR("Error %d setting up lprocfs for %s\n",
@@ -733,6 +833,6 @@ int osd_procfs_fini(struct osd_device *osd)
 
 	if (osd->od_proc_entry)
 		lprocfs_remove(&osd->od_proc_entry);
-	RETURN(0);
+
+	return dt_tunables_fini(&osd->od_dt_dev);
 }
-#endif