diff options
Diffstat (limited to 'tools/vm/slabinfo.c')
| -rw-r--r-- | tools/vm/slabinfo.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c index 9b68658b6bb8..5b98f3ee58a5 100644 --- a/tools/vm/slabinfo.c +++ b/tools/vm/slabinfo.c @@ -233,6 +233,24 @@ static unsigned long read_slab_obj(struct slabinfo *s, const char *name) return l; } +static unsigned long read_debug_slab_obj(struct slabinfo *s, const char *name) +{ + char x[128]; + FILE *f; + size_t l; + + snprintf(x, 128, "/sys/kernel/debug/slab/%s/%s", s->name, name); + f = fopen(x, "r"); + if (!f) { + buffer[0] = 0; + l = 0; + } else { + l = fread(buffer, 1, sizeof(buffer), f); + buffer[l] = 0; + fclose(f); + } + return l; +} /* * Put a size string together @@ -409,14 +427,18 @@ static void show_tracking(struct slabinfo *s) { printf("\n%s: Kernel object allocation\n", s->name); printf("-----------------------------------------------------------------------\n"); - if (read_slab_obj(s, "alloc_calls")) + if (read_debug_slab_obj(s, "alloc_traces")) + printf("%s", buffer); + else if (read_slab_obj(s, "alloc_calls")) printf("%s", buffer); else printf("No Data\n"); printf("\n%s: Kernel object freeing\n", s->name); printf("------------------------------------------------------------------------\n"); - if (read_slab_obj(s, "free_calls")) + if (read_debug_slab_obj(s, "free_traces")) + printf("%s", buffer); + else if (read_slab_obj(s, "free_calls")) printf("%s", buffer); else printf("No Data\n"); |