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authorGlauber Costa <glommer@parallels.com>2012-10-19 14:20:26 (GMT)
committerPekka Enberg <penberg@kernel.org>2012-10-24 06:38:38 (GMT)
commitbcee6e2a13d580f6c21d748fcd7239ccc66cb4b8 (patch)
tree5852e9c608b292605426156dcafaadf1d32709c4 /mm/slab_common.c
parentb7454ad3cfc3043c5264729a6204f049fe1f34b1 (diff)
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mm/sl[au]b: Move print_slabinfo_header to slab_common.c
The header format is highly similar between slab and slub. The main difference lays in the fact that slab may optionally have statistics added here in case of CONFIG_SLAB_DEBUG, while the slub will stick them somewhere else. By making sure that information conditionally lives inside a globally-visible CONFIG_DEBUG_SLAB switch, we can move the header printing to a common location. Signed-off-by: Glauber Costa <glommer@parallels.com> Acked-by: Christoph Lameter <cl@linux.com> CC: David Rientjes <rientjes@google.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'mm/slab_common.c')
-rw-r--r--mm/slab_common.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 2e4b4c6..c64a043 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -196,6 +196,29 @@ int slab_is_available(void)
}
#ifdef CONFIG_SLABINFO
+static void print_slabinfo_header(struct seq_file *m)
+{
+ /*
+ * Output format version, so at least we can change it
+ * without _too_ many complaints.
+ */
+#ifdef CONFIG_DEBUG_SLAB
+ seq_puts(m, "slabinfo - version: 2.1 (statistics)\n");
+#else
+ seq_puts(m, "slabinfo - version: 2.1\n");
+#endif
+ seq_puts(m, "# name <active_objs> <num_objs> <objsize> "
+ "<objperslab> <pagesperslab>");
+ seq_puts(m, " : tunables <limit> <batchcount> <sharedfactor>");
+ seq_puts(m, " : slabdata <active_slabs> <num_slabs> <sharedavail>");
+#ifdef CONFIG_DEBUG_SLAB
+ seq_puts(m, " : globalstat <listallocs> <maxobjs> <grown> <reaped> "
+ "<error> <maxfreeable> <nodeallocs> <remotefrees> <alienoverflow>");
+ seq_puts(m, " : cpustat <allochit> <allocmiss> <freehit> <freemiss>");
+#endif
+ seq_putc(m, '\n');
+}
+
static void *s_start(struct seq_file *m, loff_t *pos)
{
loff_t n = *pos;