shithub: lwext4

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ext4_blockdev: flush data only when buffer is dirty and up-to-date.

--- a/lwext4/ext4_blockdev.c

+++ b/lwext4/ext4_blockdev.c

@@ -141,7 +141,8 @@

 	int r;

 	struct ext4_bcache *bc = bdev->bc;

-	if (ext4_bcache_test_flag(buf, BC_DIRTY)) {

+	if (ext4_bcache_test_flag(buf, BC_DIRTY) &&

+	    ext4_bcache_test_flag(buf, BC_UPTODATE)) {

 		r = ext4_blocks_set_direct(bdev, buf->data, buf->lba, 1);

 		if (r) {