AUDIT: Round up audit skb expansion to AUDIT_BUFSIZ.
Otherwise, we will be repeatedly reallocating, even if we're only
adding a few bytes at a time. Pointed out by Steve Grubb.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
diff --git a/kernel/audit.c b/kernel/audit.c
index 060b554..1871645 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -670,7 +670,7 @@
/* The printk buffer is 1024 bytes long, so if we get
* here and AUDIT_BUFSIZ is at least 1024, then we can
* log everything that printk could have logged. */
- avail = audit_expand(ab, 1+len-avail);
+ avail = audit_expand(ab, max_t(AUDIT_BUFSIZ, 1+len-avail));
if (!avail)
goto out;
len = vsnprintf(skb->tail, avail, fmt, args2);