---

yaml --- r: 298076 b: refs/heads/master c: 70d5098 h: refs/heads/master v: v3
git-mirror · Mar 26, 2012 · 514a780 · 514a780
1 parent eff7582
commit 514a780
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Showing 4 changed files with 9 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2ff5e1532dd37e1bd8ac72da3f7f0e2b310102fb
+refs/heads/master: 70d5098a4b1551864dd7df43f67b7f606a1a6438
diff --git a/trunk/drivers/mtd/mtd_blkdevs.c b/trunk/drivers/mtd/mtd_blkdevs.c
@@ -233,6 +233,7 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode)
 	ret = __get_mtd_device(dev->mtd);
 	if (ret)
 		goto error_release;
+	dev->file_mode = mode;
 
 unlock:
 	dev->open++;

diff --git a/trunk/drivers/mtd/mtdblock.c b/trunk/drivers/mtd/mtdblock.c
@@ -321,8 +321,12 @@ static int mtdblock_release(struct mtd_blktrans_dev *mbd)
 	mutex_unlock(&mtdblk->cache_mutex);
 
 	if (!--mtdblk->count) {
-		/* It was the last usage. Free the cache */
-		mtd_sync(mbd->mtd);
+		/*
+		 * It was the last usage. Free the cache, but only sync if
+		 * opened for writing.
+		 */
+		if (mbd->file_mode & FMODE_WRITE)
+			mtd_sync(mbd->mtd);
 		vfree(mtdblk->cache_data);
 	}
 

diff --git a/trunk/include/linux/mtd/blktrans.h b/trunk/include/linux/mtd/blktrans.h
@@ -47,6 +47,7 @@ struct mtd_blktrans_dev {
 	struct request_queue *rq;
 	spinlock_t queue_lock;
 	void *priv;
+	fmode_t file_mode;
 };
 
 struct mtd_blktrans_ops {