diff options
| -rw-r--r-- | drivers/base/node.c | 3 | ||||
| -rw-r--r-- | fs/proc/meminfo.c | 2 | ||||
| -rw-r--r-- | include/linux/mmzone.h | 3 | ||||
| -rw-r--r-- | kernel/fork.c | 11 | ||||
| -rw-r--r-- | mm/page_alloc.c | 3 | ||||
| -rw-r--r-- | mm/vmstat.c | 1 |
6 files changed, 22 insertions, 1 deletions
diff --git a/drivers/base/node.c b/drivers/base/node.c index 91d4087b403..b560c17f6d4 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -85,6 +85,7 @@ static ssize_t node_read_meminfo(struct sys_device * dev, "Node %d FilePages: %8lu kB\n" "Node %d Mapped: %8lu kB\n" "Node %d AnonPages: %8lu kB\n" + "Node %d KernelStack: %8lu kB\n" "Node %d PageTables: %8lu kB\n" "Node %d NFS_Unstable: %8lu kB\n" "Node %d Bounce: %8lu kB\n" @@ -116,6 +117,8 @@ static ssize_t node_read_meminfo(struct sys_device * dev, nid, K(node_page_state(nid, NR_FILE_PAGES)), nid, K(node_page_state(nid, NR_FILE_MAPPED)), nid, K(node_page_state(nid, NR_ANON_PAGES)), + nid, node_page_state(nid, NR_KERNEL_STACK) * + THREAD_SIZE / 1024, nid, K(node_page_state(nid, NR_PAGETABLE)), nid, K(node_page_state(nid, NR_UNSTABLE_NFS)), nid, K(node_page_state(nid, NR_BOUNCE)), diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c index d5c410d47fa..1fc588f430e 100644 --- a/fs/proc/meminfo.c +++ b/fs/proc/meminfo.c @@ -84,6 +84,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v) "Slab: %8lu kB\n" "SReclaimable: %8lu kB\n" "SUnreclaim: %8lu kB\n" + "KernelStack: %8lu kB\n" "PageTables: %8lu kB\n" #ifdef CONFIG_QUICKLIST "Quicklists: %8lu kB\n" @@ -128,6 +129,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v) global_page_state(NR_SLAB_UNRECLAIMABLE)), K(global_page_state(NR_SLAB_RECLAIMABLE)), K(global_page_state(NR_SLAB_UNRECLAIMABLE)), + global_page_state(NR_KERNEL_STACK) * THREAD_SIZE / 1024, K(global_page_state(NR_PAGETABLE)), #ifdef CONFIG_QUICKLIST K(quicklist_total_size()), diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 88959853737..d9335b8de84 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -94,10 +94,11 @@ enum zone_stat_item { NR_SLAB_RECLAIMABLE, NR_SLAB_UNRECLAIMABLE, NR_PAGETABLE, /* used for pagetables */ + NR_KERNEL_STACK, + /* Second 128 byte cacheline */ NR_UNSTABLE_NFS, /* NFS unstable pages */ NR_BOUNCE, NR_VMSCAN_WRITE, - /* Second 128 byte cacheline */ NR_WRITEBACK_TEMP, /* Writeback using temporary buffers */ #ifdef CONFIG_NUMA NUMA_HIT, /* allocated in intended node */ diff --git a/kernel/fork.c b/kernel/fork.c index 2cebfb23b0b..d4638c8cc19 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -136,9 +136,17 @@ struct kmem_cache *vm_area_cachep; /* SLAB cache for mm_struct structures (tsk->mm) */ static struct kmem_cache *mm_cachep; +static void account_kernel_stack(struct thread_info *ti, int account) +{ + struct zone *zone = page_zone(virt_to_page(ti)); + + mod_zone_page_state(zone, NR_KERNEL_STACK, account); +} + void free_task(struct task_struct *tsk) { prop_local_destroy_single(&tsk->dirties); + account_kernel_stack(tsk->stack, -1); free_thread_info(tsk->stack); rt_mutex_debug_task_free(tsk); ftrace_graph_exit_task(tsk); @@ -253,6 +261,9 @@ static struct task_struct *dup_task_struct(struct task_struct *orig) tsk->btrace_seq = 0; #endif tsk->splice_pipe = NULL; + + account_kernel_stack(ti, 1); + return tsk; out: diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 494c09196c3..4e050f325eb 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2177,6 +2177,7 @@ void show_free_areas(void) " mapped:%lukB" " slab_reclaimable:%lukB" " slab_unreclaimable:%lukB" + " kernel_stack:%lukB" " pagetables:%lukB" " unstable:%lukB" " bounce:%lukB" @@ -2201,6 +2202,8 @@ void show_free_areas(void) K(zone_page_state(zone, NR_FILE_MAPPED)), K(zone_page_state(zone, NR_SLAB_RECLAIMABLE)), K(zone_page_state(zone, NR_SLAB_UNRECLAIMABLE)), + zone_page_state(zone, NR_KERNEL_STACK) * + THREAD_SIZE / 1024, K(zone_page_state(zone, NR_PAGETABLE)), K(zone_page_state(zone, NR_UNSTABLE_NFS)), K(zone_page_state(zone, NR_BOUNCE)), diff --git a/mm/vmstat.c b/mm/vmstat.c index 138bed53706..ceda39b63d7 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -639,6 +639,7 @@ static const char * const vmstat_text[] = { "nr_slab_reclaimable", "nr_slab_unreclaimable", "nr_page_table_pages", + "nr_kernel_stack", "nr_unstable", "nr_bounce", "nr_vmscan_write", |