From 37da2899f40661e3e9631e497da8dc59b971cbd0 Mon Sep 17 00:00:00 2001
From: "Charles.Forsyth" <devnull@localhost>
Date: Fri, 22 Dec 2006 17:07:39 +0000
Subject: 20060303a

---
 libnandfs/findfreeblock.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 libnandfs/findfreeblock.c

(limited to 'libnandfs/findfreeblock.c')

diff --git a/libnandfs/findfreeblock.c b/libnandfs/findfreeblock.c
new file mode 100644
index 00000000..e17f729a
--- /dev/null
+++ b/libnandfs/findfreeblock.c
@@ -0,0 +1,28 @@
+#include "lib9.h"
+#include "logfs.h"
+#include "nandfs.h"
+#include "local.h"
+
+long
+nandfsfindfreeblock(Nandfs *nandfs, long *freeblocksp)
+{
+	long bestnewblock;
+	long bestnerase;
+	long i;
+
+	if (freeblocksp)
+		*freeblocksp = 0;
+	for (i = 0, bestnewblock = -1, bestnerase = 0x7fffffff; i < nandfs->ll.blocks; i++) {
+		long nerase;
+		if (nandfsgettag(nandfs, i) == LogfsTnone) {
+			if (freeblocksp) {
+				(*freeblocksp)++;
+			}
+			if ((nerase = nandfsgetnerase(nandfs, i)) < bestnerase) {
+				bestnewblock = i;
+				bestnerase = nerase;
+			}
+		}
+	}
+	return bestnewblock;
+}
-- 
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