diff options
Diffstat (limited to 'module/os/linux/zfs/abd_os.c')
| -rw-r--r-- | module/os/linux/zfs/abd_os.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/module/os/linux/zfs/abd_os.c b/module/os/linux/zfs/abd_os.c index 551a3cc8d..af543d6e3 100644 --- a/module/os/linux/zfs/abd_os.c +++ b/module/os/linux/zfs/abd_os.c @@ -132,6 +132,20 @@ static abd_stats_t abd_stats = { { "scatter_sg_table_retry", KSTAT_DATA_UINT64 }, }; +struct { + wmsum_t abdstat_struct_size; + wmsum_t abdstat_linear_cnt; + wmsum_t abdstat_linear_data_size; + wmsum_t abdstat_scatter_cnt; + wmsum_t abdstat_scatter_data_size; + wmsum_t abdstat_scatter_chunk_waste; + wmsum_t abdstat_scatter_orders[MAX_ORDER]; + wmsum_t abdstat_scatter_page_multi_chunk; + wmsum_t abdstat_scatter_page_multi_zone; + wmsum_t abdstat_scatter_page_alloc_retry; + wmsum_t abdstat_scatter_sg_table_retry; +} abd_sums; + #define abd_for_each_sg(abd, sg, n, i) \ for_each_sg(ABD_SCATTER(abd).abd_sgl, sg, n, i) @@ -687,6 +701,40 @@ abd_free_zero_scatter(void) #endif /* _KERNEL */ } +static int +abd_kstats_update(kstat_t *ksp, int rw) +{ + abd_stats_t *as = ksp->ks_data; + + if (rw == KSTAT_WRITE) + return (EACCES); + as->abdstat_struct_size.value.ui64 = + wmsum_value(&abd_sums.abdstat_struct_size); + as->abdstat_linear_cnt.value.ui64 = + wmsum_value(&abd_sums.abdstat_linear_cnt); + as->abdstat_linear_data_size.value.ui64 = + wmsum_value(&abd_sums.abdstat_linear_data_size); + as->abdstat_scatter_cnt.value.ui64 = + wmsum_value(&abd_sums.abdstat_scatter_cnt); + as->abdstat_scatter_data_size.value.ui64 = + wmsum_value(&abd_sums.abdstat_scatter_data_size); + as->abdstat_scatter_chunk_waste.value.ui64 = + wmsum_value(&abd_sums.abdstat_scatter_chunk_waste); + for (int i = 0; i < MAX_ORDER; i++) { + as->abdstat_scatter_orders[i].value.ui64 = + wmsum_value(&abd_sums.abdstat_scatter_orders[i]); + } + as->abdstat_scatter_page_multi_chunk.value.ui64 = + wmsum_value(&abd_sums.abdstat_scatter_page_multi_chunk); + as->abdstat_scatter_page_multi_zone.value.ui64 = + wmsum_value(&abd_sums.abdstat_scatter_page_multi_zone); + as->abdstat_scatter_page_alloc_retry.value.ui64 = + wmsum_value(&abd_sums.abdstat_scatter_page_alloc_retry); + as->abdstat_scatter_sg_table_retry.value.ui64 = + wmsum_value(&abd_sums.abdstat_scatter_sg_table_retry); + return (0); +} + void abd_init(void) { @@ -695,6 +743,19 @@ abd_init(void) abd_cache = kmem_cache_create("abd_t", sizeof (abd_t), 0, NULL, NULL, NULL, NULL, NULL, 0); + wmsum_init(&abd_sums.abdstat_struct_size, 0); + wmsum_init(&abd_sums.abdstat_linear_cnt, 0); + wmsum_init(&abd_sums.abdstat_linear_data_size, 0); + wmsum_init(&abd_sums.abdstat_scatter_cnt, 0); + wmsum_init(&abd_sums.abdstat_scatter_data_size, 0); + wmsum_init(&abd_sums.abdstat_scatter_chunk_waste, 0); + for (i = 0; i < MAX_ORDER; i++) + wmsum_init(&abd_sums.abdstat_scatter_orders[i], 0); + wmsum_init(&abd_sums.abdstat_scatter_page_multi_chunk, 0); + wmsum_init(&abd_sums.abdstat_scatter_page_multi_zone, 0); + wmsum_init(&abd_sums.abdstat_scatter_page_alloc_retry, 0); + wmsum_init(&abd_sums.abdstat_scatter_sg_table_retry, 0); + abd_ksp = kstat_create("zfs", 0, "abdstats", "misc", KSTAT_TYPE_NAMED, sizeof (abd_stats) / sizeof (kstat_named_t), KSTAT_FLAG_VIRTUAL); if (abd_ksp != NULL) { @@ -705,6 +766,7 @@ abd_init(void) KSTAT_DATA_UINT64; } abd_ksp->ks_data = &abd_stats; + abd_ksp->ks_update = abd_kstats_update; kstat_install(abd_ksp); } @@ -721,6 +783,19 @@ abd_fini(void) abd_ksp = NULL; } + wmsum_fini(&abd_sums.abdstat_struct_size); + wmsum_fini(&abd_sums.abdstat_linear_cnt); + wmsum_fini(&abd_sums.abdstat_linear_data_size); + wmsum_fini(&abd_sums.abdstat_scatter_cnt); + wmsum_fini(&abd_sums.abdstat_scatter_data_size); + wmsum_fini(&abd_sums.abdstat_scatter_chunk_waste); + for (int i = 0; i < MAX_ORDER; i++) + wmsum_fini(&abd_sums.abdstat_scatter_orders[i]); + wmsum_fini(&abd_sums.abdstat_scatter_page_multi_chunk); + wmsum_fini(&abd_sums.abdstat_scatter_page_multi_zone); + wmsum_fini(&abd_sums.abdstat_scatter_page_alloc_retry); + wmsum_fini(&abd_sums.abdstat_scatter_sg_table_retry); + if (abd_cache) { kmem_cache_destroy(abd_cache); abd_cache = NULL; |