diff options
| -rw-r--r-- | include/linux/vm_event_item.h | 4 | ||||
| -rw-r--r-- | mm/page_io.c | 2 | ||||
| -rw-r--r-- | mm/vmstat.c | 6 |
3 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h index 03fe95f5a020..2628ccda076a 100644 --- a/include/linux/vm_event_item.h +++ b/include/linux/vm_event_item.h @@ -175,6 +175,10 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, KSTACK_REST, #endif #endif /* CONFIG_DEBUG_STACK_USAGE */ +#ifdef CONFIG_SWAP + NRSWPIN, + NRSWPOUT, +#endif /* CONFIG_SWAP */ NR_VM_EVENT_ITEMS }; diff --git a/mm/page_io.c b/mm/page_io.c index cea438b66bce..e4fa7ffffe8b 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -704,6 +704,7 @@ void swap_write_submit(struct swap_io_ctx *ctx) { if (!ctx->sio) return; + count_vm_events(NRSWPOUT, 1); ctx->sis->ops->submit_write(ctx); ctx->sio = NULL; ctx->sis = NULL; @@ -713,6 +714,7 @@ void swap_read_submit(struct swap_io_ctx *ctx) { if (!ctx->sio) return; + count_vm_events(NRSWPIN, 1); ctx->sis->ops->submit_read(ctx); ctx->sio = NULL; ctx->sis = NULL; diff --git a/mm/vmstat.c b/mm/vmstat.c index 7d6e61a01f51..cb57714539fb 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1502,7 +1502,11 @@ const char * const vmstat_text[] = { #if THREAD_SIZE > 65536 [I(KSTACK_REST)] = "kstack_rest", #endif -#endif +#endif /* CONFIG_DEBUG_STACK_USAGE */ +#ifdef CONFIG_SWAP + [I(NRSWPIN)] = "nrswpin", + [I(NRSWPOUT)] = "nrswpout", +#endif /* CONFIG_SWAP */ #undef I #endif /* CONFIG_VM_EVENT_COUNTERS */ }; |