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btrfs: ref-verify: 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@linutronix.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Acked-by: David Sterba <dsterba@suse.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Chris Mason <clm@fb.com>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: linux-btrfs@vger.kernel.org
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: linux-mm@kvack.org
Cc: David Rientjes <rientjes@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: kasan-dev@googlegroups.com
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: iommu@lists.linux-foundation.org
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: dm-devel@redhat.com
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: intel-gfx@lists.freedesktop.org
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: dri-devel@lists.freedesktop.org
Cc: David Airlie <airlied@linux.ie>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Cc: Miroslav Benes <mbenes@suse.cz>
Cc: linux-arch@vger.kernel.org
Link: https://lkml.kernel.org/r/20190425094802.338890064@linutronix.de
This commit is contained in:
Thomas Gleixner 2019-04-25 11:45:06 +02:00
parent 746017ed8d
commit 6924f5feba
1 changed files with 2 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
fs/btrfs/ref-verify.c
View File

@ -205,28 +205,17 @@ static struct root_entry *lookup_root_entry(struct rb_root *root, u64 objectid)
#ifdef CONFIG_STACKTRACE
static void __save_stack_trace(struct ref_action *ra)
{
struct stack_trace stack_trace;
stack_trace.max_entries = MAX_TRACE;
stack_trace.nr_entries = 0;
stack_trace.entries = ra->trace;
stack_trace.skip = 2;
save_stack_trace(&stack_trace);
ra->trace_len = stack_trace.nr_entries;
ra->trace_len = stack_trace_save(ra->trace, MAX_TRACE, 2);
}
static void __print_stack_trace(struct btrfs_fs_info *fs_info,
struct ref_action *ra)
{
struct stack_trace trace;
if (ra->trace_len == 0) {
btrfs_err(fs_info, " ref-verify: no stacktrace");
return;
}
trace.nr_entries = ra->trace_len;
trace.entries = ra->trace;
print_stack_trace(&trace, 2);
stack_trace_print(ra->trace, ra->trace_len, 2);
}
#else
static void inline __save_stack_trace(struct ref_action *ra)