LU-15072 lod: extra status for spilling

to debug possible issues

Test-Parameters: trivial
Signed-off-by: Alex Zhuravlev <bzzz@whamcloud.com>
Change-Id: Ibec0173c5fd70ecf835e96a372352989df1e1f92
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/45153
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Alexandre Ioffe <aioffe@ddn.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>

diff --git a/lustre/lod/lproc_lod.c b/lustre/lod/lproc_lod.c
index 6447eee..8f8ecc2 100644 (file)
--- a/lustre/lod/lproc_lod.c
+++ b/lustre/lod/lproc_lod.c
@@ -1304,6 +1304,56 @@ static int lod_spill_hit_seq_show(struct seq_file *m, void *v)
 }
 LPROC_SEQ_FOPS_RO(lod_spill_hit);
 
+static int lod_spill_status_seq_show(struct seq_file *m, void *v)
+{
+       struct pool_desc *pool = m->private;
+       __u64 avail_bytes = 0, total_bytes = 0;
+       struct lu_tgt_pool *osts;
+       struct lod_device *lod;
+       struct lu_env env;
+       int rc, i;
+
+       if (!pool)
+               return -ENODEV;
+
+       rc = lu_env_init(&env, LCT_LOCAL);
+       if (rc)
+               return rc;
+
+       lod = lu2lod_dev(pool->pool_lobd->obd_lu_dev);
+
+       osts = &(pool->pool_obds);
+       for (i = 0; i < osts->op_count; i++) {
+               int idx = osts->op_array[i];
+               struct lod_tgt_desc *tgt;
+               struct obd_statfs *sfs;
+
+               if (!test_bit(idx, lod->lod_ost_bitmap))
+                       continue;
+               tgt = OST_TGT(lod, idx);
+               if (tgt->ltd_active == 0)
+                       continue;
+               sfs = &tgt->ltd_statfs;
+
+               avail_bytes += sfs->os_bavail * sfs->os_bsize;
+               total_bytes += sfs->os_blocks * sfs->os_bsize;
+               seq_printf(m, "%d: %llu %llu\n", idx,
+                       avail_bytes >> 10, total_bytes >> 10);
+       }
+       seq_printf(m, "total: %llu\navail: %llu\nusage: %llu\nusage%%: %llu\n"
+                  "active: %s\nthreshold: %dexpire: %d\n",
+                  total_bytes >> 10, avail_bytes >> 10,
+                  (total_bytes - avail_bytes) >> 10,
+                  (total_bytes * pool->pool_spill_threshold_pct / 100) >> 10,
+                  pool->pool_spill_is_active ? "on" : "off",
+                  pool->pool_spill_threshold_pct,
+                  (int)(pool->pool_spill_expire - ktime_get_seconds()));
+       lu_env_fini(&env);
+
+       return 0;
+}
+LPROC_SEQ_FOPS_RO(lod_spill_status);
+
 struct lprocfs_vars lprocfs_lod_spill_vars[] = {
        { .name =       "spill_threshold_pct",
          .fops =       &lod_spill_threshold_pct_fops },
@@ -1313,6 +1363,8 @@ struct lprocfs_vars lprocfs_lod_spill_vars[] = {
          .fops =       &lod_spill_is_active_fops },
        { .name =       "spill_hit",
          .fops =       &lod_spill_hit_fops },
+       { .name =       "spill_status",
+         .fops =       &lod_spill_status_fops },
        { NULL }
 };