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| author |   Andy Lutomirski <luto@kernel.org> | 2016-07-28 15:48:14 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-28 16:07:41 -0700 |
| commit | d30dd8be06a5ae640766b20ea9ae288832bd12ac (patch) | |
| tree | c82789cc86b558aefa3a2eec522f0c63aadc457c /drivers | |
| parent | mm: cleanup ifdef guards for vmem_altmap (diff) | |
| download | linux-dev-d30dd8be06a5ae640766b20ea9ae288832bd12ac.tar.xz linux-dev-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 'drivers')
| -rw-r--r-- | drivers/base/node.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/base/node.c b/drivers/base/node.c index 264cc214c4df..29cd96661b30 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -124,8 +124,7 @@ static ssize_t node_read_meminfo(struct device *dev, nid, K(node_page_state(pgdat, NR_FILE_MAPPED)), nid, K(node_page_state(pgdat, NR_ANON_MAPPED)), nid, K(i.sharedram), - nid, sum_zone_node_page_state(nid, NR_KERNEL_STACK) * - THREAD_SIZE / 1024, + nid, sum_zone_node_page_state(nid, NR_KERNEL_STACK_KB), nid, K(sum_zone_node_page_state(nid, NR_PAGETABLE)), nid, K(node_page_state(pgdat, NR_UNSTABLE_NFS)), nid, K(sum_zone_node_page_state(nid, NR_BOUNCE)), |