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authorGlauber Costa <glommer@parallels.com>2012-10-19 18:20:26 +0400
committerPekka Enberg <penberg@kernel.org>2012-10-24 09:38:38 +0300
commitbcee6e2a13d580f6c21d748fcd7239ccc66cb4b8 (patch)
tree5852e9c608b292605426156dcafaadf1d32709c4 /mm
parentb7454ad3cfc3043c5264729a6204f049fe1f34b1 (diff)
downloadop-kernel-dev-bcee6e2a13d580f6c21d748fcd7239ccc66cb4b8.zip
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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')
-rw-r--r--mm/slab.c24
-rw-r--r--mm/slab.h2
-rw-r--r--mm/slab_common.c23
-rw-r--r--mm/slub.c10
4 files changed, 23 insertions, 36 deletions
diff --git a/mm/slab.c b/mm/slab.c
index a6e045c..73811ca 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -4276,30 +4276,6 @@ out:
}
#ifdef CONFIG_SLABINFO
-
-void print_slabinfo_header(struct seq_file *m)
-{
- /*
- * Output format version, so at least we can change it
- * without _too_ many complaints.
- */
-#if STATS
- 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>");
-#if STATS
- 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');
-}
-
int slabinfo_show(struct seq_file *m, void *p)
{
struct kmem_cache *cachep = list_entry(p, struct kmem_cache, list);
diff --git a/mm/slab.h b/mm/slab.h
index dc78101..3442eb8 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -49,8 +49,6 @@ int __kmem_cache_shutdown(struct kmem_cache *);
struct seq_file;
struct file;
-void print_slabinfo_header(struct seq_file *m);
-
int slabinfo_show(struct seq_file *m, void *p);
ssize_t slabinfo_write(struct file *file, const char __user *buffer,
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;
diff --git a/mm/slub.c b/mm/slub.c
index 77a0c8a..6b5ee34 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -5405,16 +5405,6 @@ __initcall(slab_sysfs_init);
* The /proc/slabinfo ABI
*/
#ifdef CONFIG_SLABINFO
-void print_slabinfo_header(struct seq_file *m)
-{
- seq_puts(m, "slabinfo - version: 2.1\n");
- seq_puts(m, "# name <active_objs> <num_objs> <object_size> "
- "<objperslab> <pagesperslab>");
- seq_puts(m, " : tunables <limit> <batchcount> <sharedfactor>");
- seq_puts(m, " : slabdata <active_slabs> <num_slabs> <sharedavail>");
- seq_putc(m, '\n');
-}
-
int slabinfo_show(struct seq_file *m, void *p)
{
unsigned long nr_partials = 0;
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