mm: bdi init hooks
provide BDI constructor/destructor hooks
[akpm@linux-foundation.org: compile fix]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 64551ab..0e937f6 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -893,6 +893,11 @@
static int __init chr_dev_init(void)
{
int i;
+ int err;
+
+ err = bdi_init(&zero_bdi);
+ if (err)
+ return err;
if (register_chrdev(MEM_MAJOR,"mem",&memory_fops))
printk("unable to get major %d for memory devs\n", MEM_MAJOR);