[v2] btrfs-progs: btrfs-debug-tree: show the compression method string

Commit Message

Xiaoguang Wang March 11, 2016, 5:09 a.m. UTC

From: Wang Xiaoguang <[e-mail]>

Signed-off-by: Wang Xiaoguang <[e-mail]>
---
 print-tree.c | 28 ++++++++++++++++++++++++----
 1 file changed, 24 insertions(+), 4 deletions(-)

Comments

David Sterba March 11, 2016, 11:28 a.m. UTC | #1

On Fri, Mar 11, 2016 at 01:09:02PM +0800, Xiaoguang Wang wrote:
> From: Wang Xiaoguang <[e-mail]>
> 
> Signed-off-by: Wang Xiaoguang <[e-mail]>

Aplied with minor changes, thanks.
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Patch

diff --git a/print-tree.c b/print-tree.c
index 53a6813..87ec498 100644
--- a/print-tree.c
+++ b/print-tree.c
@@ -286,19 +286,40 @@  static void print_uuids(struct extent_buffer *eb)
 	printf("fs uuid %s\nchunk uuid %s\n", fs_uuid, chunk_uuid);
 }
 
+static void compress_type_to_str(u8 compress_type, char *ret)
+{
+	switch (compress_type) {
+	case BTRFS_COMPRESS_NONE:
+		strcpy(ret, "none");
+		break;
+	case BTRFS_COMPRESS_ZLIB:
+		strcpy(ret, "zlib");
+		break;
+	case BTRFS_COMPRESS_LZO:
+		strcpy(ret, "lzo");
+		break;
+	default:
+		sprintf(ret, "unknown value: %d", compress_type);
+	}
+}
+
 static void print_file_extent_item(struct extent_buffer *eb,
 				   struct btrfs_item *item,
 				   int slot,
 				   struct btrfs_file_extent_item *fi)
 {
 	int extent_type = btrfs_file_extent_type(eb, fi);
+	char compress_str[BTRFS_NAME_LEN];
+
+	compress_type_to_str(btrfs_file_extent_compression(eb, fi),
+			     compress_str);
 
 	if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
 		printf("\t\tinline extent data size %u "
-		       "ram %u compress %d\n",
+		       "ram %u compress(%s)\n",
 		  btrfs_file_extent_inline_item_len(eb, item),
 		  btrfs_file_extent_inline_len(eb, slot, fi),
-		  btrfs_file_extent_compression(eb, fi));
+		  compress_str);
 		return;
 	}
 	if (extent_type == BTRFS_FILE_EXTENT_PREALLOC) {
@@ -317,8 +338,7 @@  static void print_file_extent_item(struct extent_buffer *eb,
 		(unsigned long long)btrfs_file_extent_offset(eb, fi),
 		(unsigned long long)btrfs_file_extent_num_bytes(eb, fi),
 		(unsigned long long)btrfs_file_extent_ram_bytes(eb, fi));
-	printf("\t\textent compression %d\n",
-	       btrfs_file_extent_compression(eb, fi));
+	printf("\t\textent compression(%s)\n", compress_str);
 }
 
 /* Caller should ensure sizeof(*ret) >= 16("DATA|TREE_BLOCK") */