From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Mike Snitzer <snitzer@redhat.com>,
David Airlie <airlied@linux.ie>,
Catalin Marinas <catalin.marinas@arm.com>,
dri-devel@lists.freedesktop.org, linux-mm@kvack.org,
dm-devel@redhat.com, Alexander Potapenko <glider@google.com>,
Christoph Lameter <cl@linux.com>, Miroslav Benes <mbenes@suse.cz>,
Christoph Hellwig <hch@lst.de>, Alasdair Kergon <agk@redhat.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
linux-arch@vger.kernel.org, x86@kernel.org,
kasan-dev@googlegroups.com,
Johannes Thumshirn <jthumshirn@suse.de>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Alexey Dobriyan <adobriyan@gmail.com>,
intel-gfx@lists.freedesktop.org,
David Rientjes <rientjes@google.com>,
Akinobu Mita <akinobu.mita@gmail.com>,
Steven Rostedt <rostedt@goodmis.org>,
Josef Bacik <josef@toxicpanda.com>,
Mike Rapoport <rppt@linux.vnet.ibm.com>,
Andy Lutomirski <luto@kernel.org>, Josh Poimboeuf <jpoimboe>
Subject: [patch V3 07/29] mm/slub: Simplify stack trace retrieval
Date: Thu, 25 Apr 2019 11:45:00 +0200 [thread overview]
Message-ID: <20190425094801.771410441@linutronix.de> (raw)
In-Reply-To: 20190425094453.875139013@linutronix.de
Replace the indirection through struct stack_trace with an invocation of
the storage array based interface.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: linux-mm@kvack.org
Cc: David Rientjes <rientjes@google.com>
---
mm/slub.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -552,18 +552,14 @@ static void set_track(struct kmem_cache
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();
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next prev parent reply other threads:[~2019-04-25 9:45 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-25 9:44 [patch V3 00/29] stacktrace: Consolidate stack trace usage Thomas Gleixner
2019-04-25 9:44 ` [patch V3 01/29] tracing: Cleanup stack trace code Thomas Gleixner
2019-04-25 9:44 ` [patch V3 02/29] stacktrace: Provide helpers for common stack trace operations Thomas Gleixner
2019-04-25 9:44 ` [patch V3 03/29] lib/stackdepot: Provide functions which operate on plain storage arrays Thomas Gleixner
2019-04-25 9:44 ` [patch V3 04/29] backtrace-test: Simplify stack trace handling Thomas Gleixner
2019-04-25 9:44 ` [patch V3 05/29] proc: Simplify task stack retrieval Thomas Gleixner
2019-04-25 9:44 ` [patch V3 06/29] latency_top: Simplify stack trace handling Thomas Gleixner
2019-04-25 9:45 ` Thomas Gleixner [this message]
2019-04-25 9:45 ` [patch V3 08/29] mm/kmemleak: Simplify stacktrace handling Thomas Gleixner
2019-04-25 9:45 ` [patch V3 09/29] mm/kasan: " Thomas Gleixner
2019-04-25 9:45 ` [patch V3 10/29] mm/page_owner: Simplify stack trace handling Thomas Gleixner
2019-04-25 9:45 ` [patch V3 11/29] fault-inject: Simplify stacktrace retrieval Thomas Gleixner
2019-04-25 9:45 ` [patch V3 12/29] dma/debug: Simplify stracktrace retrieval Thomas Gleixner
2019-04-25 9:45 ` [patch V3 13/29] btrfs: ref-verify: Simplify stack trace retrieval Thomas Gleixner
2019-04-25 9:45 ` [patch V3 14/29] dm bufio: " Thomas Gleixner
2019-04-25 9:45 ` [patch V3 15/29] dm persistent data: Simplify stack trace handling Thomas Gleixner
2019-04-25 9:45 ` [patch V3 16/29] drm: Simplify stacktrace handling Thomas Gleixner
2019-04-25 9:45 ` [patch V3 17/29] lockdep: Remove unused trace argument from print_circular_bug() Thomas Gleixner
2019-04-25 9:45 ` [patch V3 18/29] lockdep: Remove save argument from check_prev_add() Thomas Gleixner
2019-04-25 13:35 ` Peter Zijlstra
2019-04-25 9:45 ` [patch V3 19/29] lockdep: Simplify stack trace handling Thomas Gleixner
2019-04-25 9:45 ` [patch V3 20/29] tracing: Simplify stacktrace retrieval in histograms Thomas Gleixner
2019-04-25 9:45 ` [patch V3 21/29] tracing: Use percpu stack trace buffer more intelligently Thomas Gleixner
2019-04-25 13:29 ` Josh Poimboeuf
2019-04-25 9:45 ` [patch V3 22/29] tracing: Make ftrace_trace_userstack() static and conditional Thomas Gleixner
2019-04-25 9:45 ` [patch V3 23/29] tracing: Simplify stack trace retrieval Thomas Gleixner
2019-04-25 9:45 ` [patch V3 24/29] tracing: Remove the last struct stack_trace usage Thomas Gleixner
2019-04-25 13:30 ` Josh Poimboeuf
2019-04-25 9:45 ` [patch V3 25/29] livepatch: Simplify stack trace retrieval Thomas Gleixner
2019-04-25 9:45 ` [patch V3 26/29] stacktrace: Remove obsolete functions Thomas Gleixner
2019-04-25 9:45 ` [patch V3 27/29] lib/stackdepot: " Thomas Gleixner
2019-04-25 9:45 ` [patch V3 28/29] stacktrace: Provide common infrastructure Thomas Gleixner
2019-04-25 9:45 ` [patch V3 29/29] x86/stacktrace: Use " Thomas Gleixner
2019-04-25 10:09 ` [patch V3 00/29] stacktrace: Consolidate stack trace usage Ingo Molnar
2019-04-25 13:31 ` Josh Poimboeuf
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