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LU-11771 osd: avoid use of HZ in brw_stats
[fs/lustre-release.git] / lustre / osd-ldiskfs / osd_lproc.c
index 2ec7529..d1708a3 100644 (file)
  *
  * 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
  */
@@ -27,7 +23,7 @@
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2011, 2014, Intel Corporation.
+ * Copyright (c) 2011, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -41,7 +37,6 @@
 #define DEBUG_SUBSYSTEM S_OSD
 
 #include <lprocfs_status.h>
-#include <lustre/lustre_idl.h>
 
 #include "osd_internal.h"
 
 void osd_brw_stats_update(struct osd_device *osd, struct osd_iobuf *iobuf)
 {
         struct brw_stats *s = &osd->od_brw_stats;
-        unsigned long    *last_block = NULL;
+       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;
-        unsigned long    *blocks = iobuf->dr_blocks;
+       sector_t         *blocks = iobuf->dr_blocks;
         int               i, nr_pages = iobuf->dr_npages;
         int               blocks_per_page;
         int               rw = iobuf->dr_rw;
@@ -63,7 +58,7 @@ void osd_brw_stats_update(struct osd_device *osd, struct osd_iobuf *iobuf)
         if (unlikely(nr_pages == 0))
                 return;
 
-       blocks_per_page = PAGE_CACHE_SIZE >> osd_sb(osd)->s_blocksize_bits;
+       blocks_per_page = PAGE_SIZE >> osd_sb(osd)->s_blocksize_bits;
 
         lprocfs_oh_tally_log2(&s->hist[BRW_R_PAGES+rw], nr_pages);
 
@@ -83,8 +78,6 @@ void osd_brw_stats_update(struct osd_device *osd, struct osd_iobuf *iobuf)
         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)
 {
@@ -114,7 +107,7 @@ static void display_brw_stats(struct seq_file *seq, char *name, char *units,
                 else
                         seq_printf(seq, "%uM", scale << (i-20));
 
-                seq_printf(seq, ":\t\t%10lu %3lu %3lu   | %4lu %3lu %3lu\n",
+               seq_printf(seq, ":\t\t%10lu %3u %3u   | %4lu %3u %3u\n",
                            r, pct(r, read_tot), pct(read_cum, read_tot),
                            w, pct(w, write_tot), pct(write_cum, write_tot));
 
@@ -125,12 +118,13 @@ static void display_brw_stats(struct seq_file *seq, char *name, char *units,
 
 static void brw_stats_show(struct seq_file *seq, struct brw_stats *brw_stats)
 {
-       struct timeval now;
+       struct timespec64 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);
+       ktime_get_real_ts64(&now);
+
+       seq_printf(seq, "snapshot_time:         %lld.%09ld (secs.nsecs)\n",
+                  (s64)now.tv_sec, now.tv_nsec);
 
         display_brw_stats(seq, "pages per bulk r/w", "rpcs",
                           &brw_stats->hist[BRW_R_PAGES],
@@ -154,16 +148,13 @@ static void brw_stats_show(struct seq_file *seq, struct brw_stats *brw_stats)
 
        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);
+                         &brw_stats->hist[BRW_W_IO_TIME], 1);
 
         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;
@@ -173,10 +164,11 @@ static int osd_brw_stats_seq_show(struct seq_file *seq, void *v)
         return 0;
 }
 
-static ssize_t osd_brw_stats_seq_write(struct file *file, const char *buf,
-                                       size_t len, loff_t *off)
+static ssize_t osd_brw_stats_seq_write(struct file *file,
+                                      const char __user *buf,
+                                      size_t len, loff_t *off)
 {
-        struct seq_file *seq = file->private_data;
+       struct seq_file *seq = file->private_data;
         struct osd_device *osd = seq->private;
         int i;
 
@@ -243,7 +235,8 @@ static int ldiskfs_osd_fstype_seq_show(struct seq_file *m, void *data)
        struct osd_device *osd = osd_dt_dev((struct dt_device *)m->private);
 
        LASSERT(osd != NULL);
-       return seq_printf(m, "ldiskfs\n");
+       seq_puts(m, "ldiskfs\n");
+       return 0;
 }
 LPROC_SEQ_FOPS_RO(ldiskfs_osd_fstype);
 
@@ -255,7 +248,8 @@ static int ldiskfs_osd_mntdev_seq_show(struct seq_file *m, void *data)
        if (unlikely(osd->od_mnt == NULL))
                return -EINPROGRESS;
 
-       return seq_printf(m, "%s\n", osd->od_mntdev);
+       seq_printf(m, "%s\n", osd->od_mntdev);
+       return 0;
 }
 LPROC_SEQ_FOPS_RO(ldiskfs_osd_mntdev);
 
@@ -267,27 +261,29 @@ static int ldiskfs_osd_cache_seq_show(struct seq_file *m, void *data)
        if (unlikely(osd->od_mnt == NULL))
                return -EINPROGRESS;
 
-       return seq_printf(m, "%u\n", osd->od_read_cache);
+       seq_printf(m, "%u\n", osd->od_read_cache);
+       return 0;
 }
 
 static ssize_t
-ldiskfs_osd_cache_seq_write(struct file *file, const char *buffer,
+ldiskfs_osd_cache_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);
-       int                val, rc;
+       bool val;
+       int rc;
 
        LASSERT(osd != NULL);
        if (unlikely(osd->od_mnt == NULL))
                return -EINPROGRESS;
 
-       rc = lprocfs_write_helper(buffer, count, &val);
+       rc = kstrtobool_from_user(buffer, count, &val);
        if (rc)
                return rc;
 
-       osd->od_read_cache = !!val;
+       osd->od_read_cache = val;
        return count;
 }
 LPROC_SEQ_FOPS(ldiskfs_osd_cache);
@@ -300,33 +296,35 @@ static int ldiskfs_osd_wcache_seq_show(struct seq_file *m, void *data)
        if (unlikely(osd->od_mnt == NULL))
                return -EINPROGRESS;
 
-       return seq_printf(m, "%u\n", osd->od_writethrough_cache);
+       seq_printf(m, "%u\n", osd->od_writethrough_cache);
+       return 0;
 }
 
 static ssize_t
-ldiskfs_osd_wcache_seq_write(struct file *file, const char *buffer,
+ldiskfs_osd_wcache_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);
-       int                val, rc;
+       bool val;
+       int rc;
 
        LASSERT(osd != NULL);
        if (unlikely(osd->od_mnt == NULL))
                return -EINPROGRESS;
 
-       rc = lprocfs_write_helper(buffer, count, &val);
+       rc = kstrtobool_from_user(buffer, count, &val);
        if (rc)
                return rc;
 
-       osd->od_writethrough_cache = !!val;
+       osd->od_writethrough_cache = val;
        return count;
 }
 LPROC_SEQ_FOPS(ldiskfs_osd_wcache);
 
 static ssize_t
-lprocfs_osd_force_sync_seq_write(struct file *file, const char *buffer,
+lprocfs_osd_force_sync_seq_write(struct file *file, const char __user *buffer,
                                        size_t count, loff_t *off)
 {
        struct seq_file   *m = file->private_data;
@@ -347,26 +345,28 @@ lprocfs_osd_force_sync_seq_write(struct file *file, const char *buffer,
 
        return rc == 0 ? count : rc;
 }
-LPROC_SEQ_FOPS_WO_TYPE(ldiskfs, osd_force_sync);
+LPROC_SEQ_FOPS_WR_ONLY(ldiskfs, osd_force_sync);
 
 static int ldiskfs_osd_pdo_seq_show(struct seq_file *m, void *data)
 {
-       return seq_printf(m, "%s\n", ldiskfs_pdo ? "ON" : "OFF");
+       seq_printf(m, "%s\n", ldiskfs_pdo ? "ON" : "OFF");
+       return 0;
 }
 
 static ssize_t
-ldiskfs_osd_pdo_seq_write(struct file *file, const char *buffer,
+ldiskfs_osd_pdo_seq_write(struct file *file, const char __user *buffer,
                                size_t count, loff_t *off)
 {
-       int pdo, rc;
+       bool pdo;
+       int rc;
 
-        rc = lprocfs_write_helper(buffer, count, &pdo);
-        if (rc != 0)
-                return rc;
+       rc = kstrtobool_from_user(buffer, count, &pdo);
+       if (rc != 0)
+               return rc;
 
-        ldiskfs_pdo = !!pdo;
+       ldiskfs_pdo = pdo;
 
-        return count;
+       return count;
 }
 LPROC_SEQ_FOPS(ldiskfs_osd_pdo);
 
@@ -378,27 +378,29 @@ static int ldiskfs_osd_auto_scrub_seq_show(struct seq_file *m, void *data)
        if (unlikely(dev->od_mnt == NULL))
                return -EINPROGRESS;
 
-       return seq_printf(m, "%d\n", !dev->od_noscrub);
+       seq_printf(m, "%lld\n", dev->od_auto_scrub_interval);
+       return 0;
 }
 
 static ssize_t
-ldiskfs_osd_auto_scrub_seq_write(struct file *file, const char *buffer,
+ldiskfs_osd_auto_scrub_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 *dev = osd_dt_dev(dt);
-       int val, rc;
+       s64 val;
+       int rc;
 
        LASSERT(dev != NULL);
        if (unlikely(dev->od_mnt == NULL))
                return -EINPROGRESS;
 
-       rc = lprocfs_write_helper(buffer, count, &val);
+       rc = kstrtoll_from_user(buffer, count, 0, &val);
        if (rc)
                return rc;
 
-       dev->od_noscrub = !val;
+       dev->od_auto_scrub_interval = val;
        return count;
 }
 LPROC_SEQ_FOPS(ldiskfs_osd_auto_scrub);
@@ -411,23 +413,26 @@ static int ldiskfs_osd_full_scrub_ratio_seq_show(struct seq_file *m, void *data)
        if (unlikely(dev->od_mnt == NULL))
                return -EINPROGRESS;
 
-       return seq_printf(m, LPU64"\n", dev->od_full_scrub_ratio);
+       seq_printf(m, "%llu\n", dev->od_full_scrub_ratio);
+       return 0;
 }
 
 static ssize_t
-ldiskfs_osd_full_scrub_ratio_seq_write(struct file *file, const char *buffer,
+ldiskfs_osd_full_scrub_ratio_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 *dev = osd_dt_dev(dt);
-       int val, rc;
+       s64 val;
+       int rc;
 
        LASSERT(dev != NULL);
        if (unlikely(dev->od_mnt == NULL))
                return -EINPROGRESS;
 
-       rc = lprocfs_write_helper(buffer, count, &val);
+       rc = kstrtoll_from_user(buffer, count, 0, &val);
        if (rc != 0)
                return rc;
 
@@ -448,31 +453,30 @@ static int ldiskfs_osd_full_scrub_threshold_rate_seq_show(struct seq_file *m,
        if (unlikely(dev->od_mnt == NULL))
                return -EINPROGRESS;
 
-       return seq_printf(m, LPU64" (bad OI mappings/minute)\n",
-                         dev->od_full_scrub_threshold_rate);
+       seq_printf(m, "%llu (bad OI mappings/minute)\n",
+                  dev->od_full_scrub_threshold_rate);
+       return 0;
 }
 
 static ssize_t
 ldiskfs_osd_full_scrub_threshold_rate_seq_write(struct file *file,
-                                               const char *buffer,
+                                               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 *dev = osd_dt_dev(dt);
-       int val, rc;
+       u64 val;
+       int rc;
 
        LASSERT(dev != NULL);
        if (unlikely(dev->od_mnt == NULL))
                return -EINPROGRESS;
 
-       rc = lprocfs_write_helper(buffer, count, &val);
+       rc = kstrtoull_from_user(buffer, count, 0, &val);
        if (rc != 0)
                return rc;
 
-       if (val < 0)
-               return -EINVAL;
-
        dev->od_full_scrub_threshold_rate = val;
        return count;
 }
@@ -481,22 +485,23 @@ LPROC_SEQ_FOPS(ldiskfs_osd_full_scrub_threshold_rate);
 static int
 ldiskfs_osd_track_declares_assert_seq_show(struct seq_file *m, void *data)
 {
-       return seq_printf(m, "%d\n", ldiskfs_track_declares_assert);
+       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,
+                                               const char __user *buffer,
                                                size_t count, loff_t *off)
 {
-       int     track_declares_assert;
-       int     rc;
+       bool track_declares_assert;
+       int rc;
 
-       rc = lprocfs_write_helper(buffer, count, &track_declares_assert);
-       if (rc != 0)
+       rc = kstrtobool_from_user(buffer, count, &track_declares_assert);
+       if (rc)
                return rc;
 
-       ldiskfs_track_declares_assert = !!track_declares_assert;
+       ldiskfs_track_declares_assert = track_declares_assert;
 
        return count;
 }
@@ -510,7 +515,8 @@ 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);
 
@@ -522,26 +528,29 @@ static int ldiskfs_osd_readcache_seq_show(struct seq_file *m, void *data)
        if (unlikely(osd->od_mnt == NULL))
                return -EINPROGRESS;
 
-       return 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;
+       s64 val;
+       int rc;
 
        LASSERT(osd != NULL);
        if (unlikely(osd->od_mnt == NULL))
                return -EINPROGRESS;
 
-       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;
 
        osd->od_readcache_max_filesize = val > OSD_MAX_CACHE_SIZE ?
                                         OSD_MAX_CACHE_SIZE : val;
@@ -549,7 +558,8 @@ ldiskfs_osd_readcache_seq_write(struct file *file, const char *buffer,
 }
 LPROC_SEQ_FOPS(ldiskfs_osd_readcache);
 
-static int ldiskfs_osd_lma_self_repair_seq_show(struct seq_file *m, void *data)
+#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)
 {
        struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
 
@@ -557,31 +567,110 @@ static int ldiskfs_osd_lma_self_repair_seq_show(struct seq_file *m, void *data)
        if (unlikely(dev->od_mnt == NULL))
                return -EINPROGRESS;
 
-       return seq_printf(m, "%d\n", !!dev->od_lma_self_repair);
+       seq_printf(m, "%d\n", (int)(dev->od_index_in_idif));
+       return 0;
 }
 
 static ssize_t
-ldiskfs_osd_lma_self_repair_seq_write(struct file *file, const char *buffer,
-                                       size_t count, loff_t *off)
+ldiskfs_osd_index_in_idif_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 lu_env env;
+       struct seq_file *m = file->private_data;
+       struct dt_device *dt = m->private;
        struct osd_device *dev = osd_dt_dev(dt);
-       int                val;
-       int                rc;
+       struct lu_target *tgt;
+       bool val;
+       int rc;
+
+       LASSERT(dev != NULL);
+       if (unlikely(dev->od_mnt == NULL))
+               return -EINPROGRESS;
+
+       rc = kstrtobool_from_user(buffer, count, &val);
+       if (rc != 0)
+               return rc;
+
+       if (dev->od_index_in_idif) {
+               if (val)
+                       return count;
+
+               LCONSOLE_WARN("%s: OST-index in IDIF has been enabled, "
+                             "it cannot be reverted back.\n", osd_name(dev));
+               return -EPERM;
+       }
+
+       if (!val)
+               return count;
+
+       rc = lu_env_init(&env, LCT_DT_THREAD);
+       if (rc != 0)
+               return rc;
+
+       tgt = dev->od_dt_dev.dd_lu_dev.ld_site->ls_tgt;
+       tgt->lut_lsd.lsd_feature_rocompat |= OBD_ROCOMPAT_IDX_IN_IDIF;
+       rc = tgt_server_data_update(&env, tgt, 1);
+       lu_env_fini(&env);
+       if (rc < 0)
+               return rc;
+
+       LCONSOLE_INFO("%s: enable OST-index in IDIF successfully, "
+                     "it cannot be reverted back.\n", osd_name(dev));
+
+       dev->od_index_in_idif = 1;
+       return count;
+}
+LPROC_SEQ_FOPS(ldiskfs_osd_index_in_idif);
+
+int osd_register_proc_index_in_idif(struct osd_device *osd)
+{
+       struct proc_dir_entry *proc;
+
+       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;
+}
+#endif
+
+static int ldiskfs_osd_index_backup_seq_show(struct seq_file *m, void *data)
+{
+       struct osd_device *dev = osd_dt_dev((struct dt_device *)m->private);
+
+       LASSERT(dev != NULL);
+       if (unlikely(dev->od_mnt == NULL))
+               return -EINPROGRESS;
+
+       seq_printf(m, "%d\n", dev->od_index_backup_policy);
+       return 0;
+}
+
+static ssize_t ldiskfs_osd_index_backup_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 *dev = osd_dt_dev(dt);
+       int val;
+       int rc;
 
        LASSERT(dev != NULL);
        if (unlikely(dev->od_mnt == NULL))
                return -EINPROGRESS;
 
-       rc = lprocfs_write_helper(buffer, count, &val);
+       rc = kstrtoint_from_user(buffer, count, 0, &val);
        if (rc)
                return rc;
 
-       dev->od_lma_self_repair = !!val;
+       dev->od_index_backup_policy = val;
        return count;
 }
-LPROC_SEQ_FOPS(ldiskfs_osd_lma_self_repair);
+LPROC_SEQ_FOPS(ldiskfs_osd_index_backup);
 
 LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_blksize);
 LPROC_SEQ_FOPS_RO_TYPE(ldiskfs, dt_kbytestotal);
@@ -625,8 +714,8 @@ struct lprocfs_vars lprocfs_osd_obd_vars[] = {
          .fops =       &ldiskfs_osd_wcache_fops        },
        { .name =       "readcache_max_filesize",
          .fops =       &ldiskfs_osd_readcache_fops     },
-       { .name =       "lma_self_repair",
-         .fops =       &ldiskfs_osd_lma_self_repair_fops       },
+       { .name =       "index_backup",
+         .fops =       &ldiskfs_osd_index_backup_fops  },
        { NULL }
 };