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authormajianpeng2012-06-25 20:30:31 -0500
committerPekka Enberg2012-07-02 15:11:14 -0500
commit4b57ad939263935e4e3aec4d74a11dd02a3421e4 (patch)
tree3c29075138935c378e0b014d695c0d2725a701b5 /tools/vm
parenta164f89628fa813a2b012ec033625e9e507c29bb (diff)
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mm: Fix signal SIGFPE in slabinfo.c.
In function slab_stats(), if total_free is equal zero, it will error. So fix it. Acked-by: Christoph Lameter <cl@linux.com> Signed-off-by: majianpeng <majianpeng@gmail.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'tools/vm')
-rw-r--r--tools/vm/slabinfo.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c
index 164cbcf61106..808d5a9d5dcf 100644
--- a/tools/vm/slabinfo.c
+++ b/tools/vm/slabinfo.c
@@ -437,34 +437,34 @@ static void slab_stats(struct slabinfo *s)
437 printf("Fastpath %8lu %8lu %3lu %3lu\n", 437 printf("Fastpath %8lu %8lu %3lu %3lu\n",
438 s->alloc_fastpath, s->free_fastpath, 438 s->alloc_fastpath, s->free_fastpath,
439 s->alloc_fastpath * 100 / total_alloc, 439 s->alloc_fastpath * 100 / total_alloc,
440 s->free_fastpath * 100 / total_free); 440 total_free ? s->free_fastpath * 100 / total_free : 0);
441 printf("Slowpath %8lu %8lu %3lu %3lu\n", 441 printf("Slowpath %8lu %8lu %3lu %3lu\n",
442 total_alloc - s->alloc_fastpath, s->free_slowpath, 442 total_alloc - s->alloc_fastpath, s->free_slowpath,
443 (total_alloc - s->alloc_fastpath) * 100 / total_alloc, 443 (total_alloc - s->alloc_fastpath) * 100 / total_alloc,
444 s->free_slowpath * 100 / total_free); 444 total_free ? s->free_slowpath * 100 / total_free : 0);
445 printf("Page Alloc %8lu %8lu %3lu %3lu\n", 445 printf("Page Alloc %8lu %8lu %3lu %3lu\n",
446 s->alloc_slab, s->free_slab, 446 s->alloc_slab, s->free_slab,
447 s->alloc_slab * 100 / total_alloc, 447 s->alloc_slab * 100 / total_alloc,
448 s->free_slab * 100 / total_free); 448 total_free ? s->free_slab * 100 / total_free : 0);
449 printf("Add partial %8lu %8lu %3lu %3lu\n", 449 printf("Add partial %8lu %8lu %3lu %3lu\n",
450 s->deactivate_to_head + s->deactivate_to_tail, 450 s->deactivate_to_head + s->deactivate_to_tail,
451 s->free_add_partial, 451 s->free_add_partial,
452 (s->deactivate_to_head + s->deactivate_to_tail) * 100 / total_alloc, 452 (s->deactivate_to_head + s->deactivate_to_tail) * 100 / total_alloc,
453 s->free_add_partial * 100 / total_free); 453 total_free ? s->free_add_partial * 100 / total_free : 0);
454 printf("Remove partial %8lu %8lu %3lu %3lu\n", 454 printf("Remove partial %8lu %8lu %3lu %3lu\n",
455 s->alloc_from_partial, s->free_remove_partial, 455 s->alloc_from_partial, s->free_remove_partial,
456 s->alloc_from_partial * 100 / total_alloc, 456 s->alloc_from_partial * 100 / total_alloc,
457 s->free_remove_partial * 100 / total_free); 457 total_free ? s->free_remove_partial * 100 / total_free : 0);
458 458
459 printf("Cpu partial list %8lu %8lu %3lu %3lu\n", 459 printf("Cpu partial list %8lu %8lu %3lu %3lu\n",
460 s->cpu_partial_alloc, s->cpu_partial_free, 460 s->cpu_partial_alloc, s->cpu_partial_free,
461 s->cpu_partial_alloc * 100 / total_alloc, 461 s->cpu_partial_alloc * 100 / total_alloc,
462 s->cpu_partial_free * 100 / total_free); 462 total_free ? s->cpu_partial_free * 100 / total_free : 0);
463 463
464 printf("RemoteObj/SlabFrozen %8lu %8lu %3lu %3lu\n", 464 printf("RemoteObj/SlabFrozen %8lu %8lu %3lu %3lu\n",
465 s->deactivate_remote_frees, s->free_frozen, 465 s->deactivate_remote_frees, s->free_frozen,
466 s->deactivate_remote_frees * 100 / total_alloc, 466 s->deactivate_remote_frees * 100 / total_alloc,
467 s->free_frozen * 100 / total_free); 467 total_free ? s->free_frozen * 100 / total_free : 0);
468 468
469 printf("Total %8lu %8lu\n\n", total_alloc, total_free); 469 printf("Total %8lu %8lu\n\n", total_alloc, total_free);
470 470