From: Qu Wenruo <quwenruo@cn.fujitsu.com>
Date: Mon, 11 May 2015 08:08:44 +0000 (+0800)
Subject: btrfs-progs: show-super: print human readable text for super flags
X-Git-Tag: upstream/4.16.1~2274
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9ae2b8b52fe18efc0aab16ac3a5d1286a495b347;p=platform%2Fupstream%2Fbtrfs-progs.git

btrfs-progs: show-super: print human readable text for super flags

Use the new __print_readable_flag() to implement
print_readable_super_flag().

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[removed the chunk tree flag]
Signed-off-by: David Sterba <dsterba@suse.cz>
---

diff --git a/btrfs-show-super.c b/btrfs-show-super.c
index 430ddfe..27414c8 100644
--- a/btrfs-show-super.c
+++ b/btrfs-show-super.c
@@ -305,6 +305,28 @@ struct readable_flag_entry incompat_flags_array[] = {
 static const int incompat_flags_num = sizeof(incompat_flags_array) /
 				      sizeof(struct readable_flag_entry);
 
+#define DEF_HEADER_FLAG_ENTRY(bit_name)			\
+	{BTRFS_HEADER_FLAG_##bit_name, #bit_name}
+#define DEF_SUPER_FLAG_ENTRY(bit_name)			\
+	{BTRFS_SUPER_FLAG_##bit_name, #bit_name}
+
+struct readable_flag_entry super_flags_array[] = {
+	DEF_HEADER_FLAG_ENTRY(WRITTEN),
+	DEF_HEADER_FLAG_ENTRY(RELOC),
+	DEF_SUPER_FLAG_ENTRY(CHANGING_FSID),
+	DEF_SUPER_FLAG_ENTRY(SEEDING),
+	DEF_SUPER_FLAG_ENTRY(METADUMP),
+	DEF_SUPER_FLAG_ENTRY(METADUMP_V2)
+};
+static const int super_flags_num = ARRAY_SIZE(super_flags_array);
+
+#define BTRFS_SUPER_FLAG_SUPP	(BTRFS_HEADER_FLAG_WRITTEN |\
+				 BTRFS_HEADER_FLAG_RELOC |\
+				 BTRFS_SUPER_FLAG_CHANGING_FSID |\
+				 BTRFS_SUPER_FLAG_SEEDING |\
+				 BTRFS_SUPER_FLAG_METADUMP |\
+				 BTRFS_SUPER_FLAG_METADUMP_V2)
+
 static void __print_readable_flag(u64 flag, struct readable_flag_entry *array,
 				  int array_size, u64 supported_flags)
 {
@@ -343,6 +365,12 @@ static void print_readable_incompat_flag(u64 flag)
 				     BTRFS_FEATURE_INCOMPAT_SUPP);
 }
 
+static void print_readable_super_flag(u64 flag)
+{
+	return __print_readable_flag(flag, super_flags_array,
+				     super_flags_num, BTRFS_SUPER_FLAG_SUPP);
+}
+
 static void dump_superblock(struct btrfs_super_block *sb, int full)
 {
 	int i;
@@ -362,6 +390,7 @@ static void dump_superblock(struct btrfs_super_block *sb, int full)
 		(unsigned long long)btrfs_super_bytenr(sb));
 	printf("flags\t\t\t0x%llx\n",
 		(unsigned long long)btrfs_super_flags(sb));
+	print_readable_super_flag(btrfs_super_flags(sb));
 
 	printf("magic\t\t\t");
 	s = (char *) &sb->magic;