Add 'dmu_tx' kstats entry

[zfs.git] / module / zfs / arc.c

diff --git a/module/zfs/arc.c b/module/zfs/arc.c
index cfd4c79..10317b6 100644 (file)
--- a/module/zfs/arc.c
+++ b/module/zfs/arc.c
@@ -138,6 +138,7 @@
 #endif
 #include <sys/callb.h>
 #include <sys/kstat.h>
+#include <sys/dmu_tx.h>
 #include <zfs_fletcher.h>
 
 static kmutex_t                arc_reclaim_thr_lock;
@@ -3584,6 +3585,7 @@ arc_memory_throttle(uint64_t reserve, uint64_t inflight_data, uint64_t txg)
        } else if (page_load > 0 && arc_reclaim_needed()) {
                /* memory is low, delay before restarting */
                ARCSTAT_INCR(arcstat_memory_throttle_count, 1);
+               DMU_TX_STAT_BUMP(dmu_tx_memory_reclaim);
                return (EAGAIN);
        }
        page_load = 0;
@@ -3599,6 +3601,7 @@ arc_memory_throttle(uint64_t reserve, uint64_t inflight_data, uint64_t txg)
 
        if (inflight_data > available_memory / 4) {
                ARCSTAT_INCR(arcstat_memory_throttle_count, 1);
+               DMU_TX_STAT_BUMP(dmu_tx_memory_inflight);
                return (ERESTART);
        }
 #endif
@@ -3629,8 +3632,10 @@ arc_tempreserve_space(uint64_t reserve, uint64_t txg)
 #endif
        if (reserve > arc_c/4 && !arc_no_grow)
                arc_c = MIN(arc_c_max, reserve * 4);
-       if (reserve > arc_c)
+       if (reserve > arc_c) {
+               DMU_TX_STAT_BUMP(dmu_tx_memory_reserve);
                return (ENOMEM);
+       }
 
        /*
         * Don't count loaned bufs as in flight dirty data to prevent long
@@ -3663,6 +3668,7 @@ arc_tempreserve_space(uint64_t reserve, uint64_t txg)
                    arc_anon->arcs_lsize[ARC_BUFC_METADATA]>>10,
                    arc_anon->arcs_lsize[ARC_BUFC_DATA]>>10,
                    reserve>>10, arc_c>>10);
+               DMU_TX_STAT_BUMP(dmu_tx_dirty_throttle);
                return (ERESTART);
        }
        atomic_add_64(&arc_tempreserve, reserve);