Unify /proc/slabinfo configuration
Both SLUB and SLAB really did almost exactly the same thing for
/proc/slabinfo setup, using duplicate code and per-allocator #ifdef's.
This just creates a common CONFIG_SLABINFO that is enabled by both SLUB
and SLAB, and shares all the setup code. Maybe SLOB will want this some
day too.
Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/slub.c b/mm/slub.c
index 903dabd..474945e 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4127,7 +4127,14 @@
/*
* The /proc/slabinfo ABI
*/
-#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_SLABINFO
+
+ssize_t slabinfo_write(struct file *file, const char __user * buffer,
+ size_t count, loff_t *ppos)
+{
+ return -EINVAL;
+}
+
static void print_slabinfo_header(struct seq_file *m)
{
@@ -4201,4 +4208,4 @@
.show = s_show,
};
-#endif /* CONFIG_PROC_FS */
+#endif /* CONFIG_SLABINFO */