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| author | Jann Horn | 2018-10-06 00:52:07 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2018-10-06 01:32:05 +0200 |
| commit | 58bc4c34d249bf1bc50730a9a209139347cfacfe (patch) | |
| tree | aa1e5fa07da1f433a163f1154ee03e3488b21d99 /mm/vmscan.c | |
| parent | mm/vmstat.c: fix outdated vmstat_text (diff) | |
| download | kernel-qcow2-linux-58bc4c34d249bf1bc50730a9a209139347cfacfe.tar.gz kernel-qcow2-linux-58bc4c34d249bf1bc50730a9a209139347cfacfe.tar.xz kernel-qcow2-linux-58bc4c34d249bf1bc50730a9a209139347cfacfe.zip | |
mm/vmstat.c: skip NR_TLB_REMOTE_FLUSH* properly
5dd0b16cdaff ("mm/vmstat: Make NR_TLB_REMOTE_FLUSH_RECEIVED available even
on UP") made the availability of the NR_TLB_REMOTE_FLUSH* counters inside
the kernel unconditional to reduce #ifdef soup, but (either to avoid
showing dummy zero counters to userspace, or because that code was missed)
didn't update the vmstat_array, meaning that all following counters would
be shown with incorrect values.
This only affects kernel builds with
CONFIG_VM_EVENT_COUNTERS=y && CONFIG_DEBUG_TLBFLUSH=y && CONFIG_SMP=n.
Link: http://lkml.kernel.org/r/20181001143138.95119-2-jannh@google.com
Fixes: 5dd0b16cdaff ("mm/vmstat: Make NR_TLB_REMOTE_FLUSH_RECEIVED available even on UP")
Signed-off-by: Jann Horn <jannh@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Roman Gushchin <guro@fb.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Kemi Wang <kemi.wang@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/vmscan.c')
0 files changed, 0 insertions, 0 deletions