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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>
This commit is contained in:
Qu Wenruo 2015-05-11 16:08:44 +08:00 committed by David Sterba
parent b8436121c2
commit 9ae2b8b52f
1 changed files with 29 additions and 0 deletions
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29
btrfs-show-super.c
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@ -305,6 +305,28 @@ struct readable_flag_entry incompat_flags_array[] = {
static const int incompat_flags_num = sizeof(incompat_flags_array) / static const int incompat_flags_num = sizeof(incompat_flags_array) /
sizeof(struct readable_flag_entry); 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, static void __print_readable_flag(u64 flag, struct readable_flag_entry *array,
int array_size, u64 supported_flags) int array_size, u64 supported_flags)
{ {
@ -343,6 +365,12 @@ static void print_readable_incompat_flag(u64 flag)
BTRFS_FEATURE_INCOMPAT_SUPP); 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) static void dump_superblock(struct btrfs_super_block *sb, int full)
{ {
int i; int i;
@ -362,6 +390,7 @@ static void dump_superblock(struct btrfs_super_block *sb, int full)
(unsigned long long)btrfs_super_bytenr(sb)); (unsigned long long)btrfs_super_bytenr(sb));
printf("flags\t\t\t0x%llx\n", printf("flags\t\t\t0x%llx\n",
(unsigned long long)btrfs_super_flags(sb)); (unsigned long long)btrfs_super_flags(sb));
print_readable_super_flag(btrfs_super_flags(sb));
printf("magic\t\t\t"); printf("magic\t\t\t");
s = (char *) &sb->magic; s = (char *) &sb->magic;