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authorAndy Lutomirski <luto@kernel.org>2016-07-29 00:48:14 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2016-07-29 01:07:41 +0200
commitd30dd8be06a5ae640766b20ea9ae288832bd12ac (patch)
treec82789cc86b558aefa3a2eec522f0c63aadc457c /fs/proc/meminfo.c
parentmm: cleanup ifdef guards for vmem_altmap (diff)
downloadlinux-d30dd8be06a5ae640766b20ea9ae288832bd12ac.tar.xz
linux-d30dd8be06a5ae640766b20ea9ae288832bd12ac.zip
mm: track NR_KERNEL_STACK in KiB instead of number of stacks
Currently, NR_KERNEL_STACK tracks the number of kernel stacks in a zone. This only makes sense if each kernel stack exists entirely in one zone, and allowing vmapped stacks could break this assumption. Since frv has THREAD_SIZE < PAGE_SIZE, we need to track kernel stack allocations in a unit that divides both THREAD_SIZE and PAGE_SIZE on all architectures. Keep it simple and use KiB. Link: http://lkml.kernel.org/r/083c71e642c5fa5f1b6898902e1b2db7b48940d4.1468523549.git.luto@kernel.org Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Vladimir Davydov <vdavydov@virtuozzo.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com> Reviewed-by: Vladimir Davydov <vdavydov@virtuozzo.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/proc/meminfo.c')
-rw-r--r--fs/proc/meminfo.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index c1fdcc1a907a..09e18fdf61e5 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -147,7 +147,7 @@ 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,
+ global_page_state(NR_KERNEL_STACK_KB),
K(global_page_state(NR_PAGETABLE)),
#ifdef CONFIG_QUICKLIST
K(quicklist_total_size()),