Replace the indirection through struct stack_trace with an invocation of
the storage array based interface.

Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Christoph Lameter <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Pekka Enberg <[email protected]>
Cc: [email protected]
Cc: David Rientjes <[email protected]>
---
 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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