shithub: lwext4

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ext4: enable write-back mode when undergoing journal test.

--- a/lwext4/ext4.c

+++ b/lwext4/ext4.c

@@ -2513,6 +2513,7 @@

 	int r = ENOTSUP;

 	EXT4_MP_LOCK(mp);

+	ext4_block_cache_write_back(mp->fs.bdev, 1);

 	if (ext4_sb_feature_com(&mp->fs.sb, EXT4_FCOM_HAS_JOURNAL)) {

 		struct jbd_fs *jbd_fs = calloc(1, sizeof(struct jbd_fs));

 		struct jbd_journal *journal;

@@ -2590,6 +2591,7 @@

 	}

 Finish:

+	ext4_block_cache_write_back(mp->fs.bdev, 0);

 	EXT4_MP_UNLOCK(mp);

 	return r;

 }