Commit-ID: 7971679994d3a239538ddcfea9f89468f0bd65e2
Gitweb: https://git.kernel.org/tip/7971679994d3a239538ddcfea9f89468f0bd65e2
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Thu, 25 Apr 2019 11:45:00 +0200
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Mon, 29 Apr 2019 12:37:48 +0200
mm/slub: Simplify stack trace retrieval
Replace the indirection through struct stack_trace with an invocation of
the storage array based interface.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Reviewed-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Acked-by: Christoph Lameter <cl@xxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: linux-mm@xxxxxxxxx
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Cc: kasan-dev@xxxxxxxxxxxxxxxx
Cc: Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx>
Cc: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx
Cc: Robin Murphy <robin.murphy@xxxxxxx>
Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Cc: Johannes Thumshirn <jthumshirn@xxxxxxx>
Cc: David Sterba <dsterba@xxxxxxxx>
Cc: Chris Mason <clm@xxxxxx>
Cc: Josef Bacik <josef@xxxxxxxxxxxxxx>
Cc: linux-btrfs@xxxxxxxxxxxxxxx
Cc: dm-devel@xxxxxxxxxx
Cc: Mike Snitzer <snitzer@xxxxxxxxxx>
Cc: Alasdair Kergon <agk@xxxxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Cc: Tom Zanussi <tom.zanussi@xxxxxxxxxxxxxxx>
Cc: Miroslav Benes <mbenes@xxxxxxx>
Cc: linux-arch@xxxxxxxxxxxxxxx
Link: https://lkml.kernel.org/r/20190425094801.771410441@xxxxxxxxxxxxx
---
mm/slub.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/mm/slub.c b/mm/slub.c
index e2ccd12b6faa..6b28cd2b5a58 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -552,18 +552,14 @@ static void set_track(struct kmem_cache *s, void *object,
if (addr) {
#ifdef CONFIG_STACKTRACE
- struct stack_trace trace;
+ unsigned int nr_entries;
- trace.nr_entries = 0;
- trace.max_entries = TRACK_ADDRS_COUNT;
- trace.entries = p->addrs;
- trace.skip = 3;
metadata_access_enable();
- save_stack_trace(&trace);
+ nr_entries = stack_trace_save(p->addrs, TRACK_ADDRS_COUNT, 3);
metadata_access_disable();
- if (trace.nr_entries < TRACK_ADDRS_COUNT)
- p->addrs[trace.nr_entries] = 0;
+ if (nr_entries < TRACK_ADDRS_COUNT)
+ p->addrs[nr_entries] = 0;
#endif
p->addr = addr;
p->cpu = smp_processor_id();
|