[Devel] [PATCH hci-8.1 v5 2/3] dm-qcow2: drop duplicate prefix from QC_ERR/QC_INFO messages

[Alexander Ivanov <alexander.ivanov@virtuozzo.com>]

QCOW2_FMT already adds the "dm-qcow2: <dev>: " prefix and the trailing
newline, so several messages were printed like:

    dm-qcow2: <dev>: dm-qcow2: Can't parse metadata

and some of them were followed by an empty line. Drop the redundant
prefix and newlines.

https://virtuozzo.atlassian.net/browse/VSTOR-148171
Feature: dm-qcow2: block device over QCOW2 files driver

Signed-off-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
---
 drivers/md/dm-qcow2-target.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/md/dm-qcow2-target.c b/drivers/md/dm-qcow2-target.c
index 311a23d63a5c..bb11b8a74598 100644
--- a/drivers/md/dm-qcow2-target.c
+++ b/drivers/md/dm-qcow2-target.c
@@ -192,7 +192,7 @@ void qcow2_flush_deferred_activity(struct qcow2_target *tgt, struct qcow2 *qcow2
 		md = rb_entry(node, struct md_page, node);
 		/* FIXME: call md_make_dirty() and try once again? */
 		if (md->status & MD_WRITEBACK_ERROR) {
-			QC_ERR(tgt->ti, "qcow2: Failed to write dirty pages");
+			QC_ERR(tgt->ti, "Failed to write dirty pages");
 			tgt->md_writeback_error = true;
 			break;
 		}
@@ -834,19 +834,19 @@ static int qcow2_parse_extensions(struct dm_target *ti, struct qcow2 *qcow2,
 			struct Qcow2BitmapHeaderExt bitmaps_ext;
 
 			if (ext.len != sizeof(bitmaps_ext)) {
-				QC_ERR(ti, "unexpected bitmap extension size\n");
+				QC_ERR(ti, "unexpected bitmap extension size");
 				return -EINVAL;
 			}
 
 			if (offset + sizeof(bitmaps_ext) > end) {
-				QC_ERR(ti, "unexpected end of extension area\n");
+				QC_ERR(ti, "unexpected end of extension area");
 				return -EINVAL;
 			}
 
 			memcpy(&bitmaps_ext, addr + offset, sizeof(bitmaps_ext));
 			ret = qcow2_parse_bitmap_ext(ti, qcow2, &bitmaps_ext);
 			if (ret) {
-				QC_ERR(ti, "unable to pase bitmap extension\n");
+				QC_ERR(ti, "unable to pase bitmap extension");
 				return ret;
 			}
 			break;
@@ -879,7 +879,7 @@ static int qcow2_parse_header(struct dm_target *ti, struct qcow2 *qcow2,
 		new_size = PAGE_ALIGN(qcow2->file_size);
 		ret = qcow2_truncate_safe(file, new_size);
 		if (ret) {
-			QC_ERR(ti, "qcow2: Can't truncate file");
+			QC_ERR(ti, "Can't truncate file");
 			return ret;
 		} /* See md_page_read_complete() */
 		qcow2->file_size = new_size;
@@ -910,14 +910,14 @@ static int qcow2_parse_header(struct dm_target *ti, struct qcow2 *qcow2,
 	ret = -EXDEV;
 	if (upper) {
 		if (upper->clu_size != qcow2->clu_size) {
-			QC_ERR(ti, "dm-qcow2: clu_size mismatch\n");
+			QC_ERR(ti, "clu_size mismatch");
 			goto out;
 		}
 		if (upper->ext_l2 != qcow2->ext_l2) {
 			if (is_bottom && upper->ext_l2 && !qcow2->ext_l2) {
-				QC_INFO(ti, "dm-qcow2: using bottom delta without ext_l2\n");
+				QC_INFO(ti, "using bottom delta without ext_l2");
 			} else {
-				QC_ERR(ti, "dm-qcow2: upper delta without ext_l2 is unsupported\n");
+				QC_ERR(ti, "upper delta without ext_l2 is unsupported");
 				goto out; /* This is not supported yet */
 			}
 		}
@@ -939,11 +939,11 @@ static int qcow2_parse_header(struct dm_target *ti, struct qcow2 *qcow2,
 		ext_end = PAGE_SIZE;
 
 	if (ext_end > PAGE_SIZE) {
-		QC_INFO(ti, "extensions are too long, skipping them\n");
+		QC_INFO(ti, "extensions are too long, skipping them");
 	} else {
 		ret = qcow2_parse_extensions(ti, qcow2, ext_start, ext_end, raw_hdr);
 		if (ret) {
-			QC_ERR(ti, "failed to parse extensions\n");
+			QC_ERR(ti, "failed to parse extensions");
 			goto out;
 		}
 	}
@@ -976,7 +976,7 @@ static int qcow2_parse_metadata(struct dm_target *ti, struct qcow2_target *tgt)
 	ret = 0;
 out:
 	if (ret)
-		QC_ERR(ti, "dm-qcow2: Can't parse metadata");
+		QC_ERR(ti, "Can't parse metadata");
 	return ret;
 }
 
@@ -1057,7 +1057,7 @@ static void qcow2_truncate_preallocations(struct dm_target *ti)
 
 	ret = qcow2_truncate_safe(qcow2->file, end);
 	if (ret) {
-		QC_ERR(ti, "dm-qcow2: Can't truncate preallocations");
+		QC_ERR(ti, "Can't truncate preallocations");
 		tgt->truncate_error = true;
 		return;
 	}
@@ -1143,7 +1143,7 @@ static void qcow2_postsuspend(struct dm_target *ti)
 	if (dm_table_get_mode(ti->table) & FMODE_WRITE) {
 		ret = qcow2_set_image_file_features(qcow2, false);
 		if (ret)
-			QC_ERR(ti, "qcow2: Can't set features");
+			QC_ERR(ti, "Can't set features");
 	}
 }
 static int qcow2_preresume(struct dm_target *ti)
@@ -1152,7 +1152,7 @@ static int qcow2_preresume(struct dm_target *ti)
 	int ret = 0;
 
 	if (qcow2_wants_check(tgt)) {
-		QC_ERR(ti, "qcow2: image check and target reload are required");
+		QC_ERR(ti, "image check and target reload are required");
 		return -EIO;
 	}
 
@@ -1173,7 +1173,7 @@ static int qcow2_preresume(struct dm_target *ti)
 	if (dm_table_get_mode(ti->table) & FMODE_WRITE) {
 		ret = qcow2_set_image_file_features(tgt->top, true);
 		if (ret)
-			QC_ERR(ti, "qcow2: Can't set features");
+			QC_ERR(ti, "Can't set features");
 	}
 	if (!ret)
 		qcow2_set_wants_suspend(ti, false);
-- 
2.53.0

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