From: Omar Sandoval <osandov@xxxxxx>
Signed-off-by: Omar Sandoval <osandov@xxxxxx>
---
cmds-inspect-dump-super.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/cmds-inspect-dump-super.c b/cmds-inspect-dump-super.c
index d9f7bfb..ba0d708 100644
--- a/cmds-inspect-dump-super.c
+++ b/cmds-inspect-dump-super.c
@@ -197,6 +197,16 @@ struct readable_flag_entry {
char *output;
};
+#define DEF_COMPAT_RO_FLAG_ENTRY(bit_name) \
+ {BTRFS_FEATURE_COMPAT_RO_##bit_name, #bit_name}
+
+static struct readable_flag_entry compat_ro_flags_array[] = {
+ DEF_COMPAT_RO_FLAG_ENTRY(FREE_SPACE_TREE),
+ DEF_COMPAT_RO_FLAG_ENTRY(FREE_SPACE_TREE_VALID),
+};
+static const int compat_ro_flags_num = sizeof(compat_ro_flags_array) /
+ sizeof(struct readable_flag_entry);
+
#define DEF_INCOMPAT_FLAG_ENTRY(bit_name) \
{BTRFS_FEATURE_INCOMPAT_##bit_name, #bit_name}
@@ -268,6 +278,19 @@ static void __print_readable_flag(u64 flag, struct readable_flag_entry *array,
printf(")\n");
}
+static void print_readable_compat_ro_flag(u64 flag)
+{
+ /*
+ * We know about the FREE_SPACE_TREE{,_VALID} bits, but we don't
+ * actually support them yet.
+ */
+ return __print_readable_flag(flag, compat_ro_flags_array,
+ compat_ro_flags_num,
+ BTRFS_FEATURE_COMPAT_RO_SUPP |
+ BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE |
+ BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE_VALID);
+}
+
static void print_readable_incompat_flag(u64 flag)
{
return __print_readable_flag(flag, incompat_flags_array,
@@ -377,6 +400,7 @@ static void dump_superblock(struct btrfs_super_block *sb, int full)
(unsigned long long)btrfs_super_compat_flags(sb));
printf("compat_ro_flags\t\t0x%llx\n",
(unsigned long long)btrfs_super_compat_ro_flags(sb));
+ print_readable_compat_ro_flag(btrfs_super_compat_ro_flags(sb));
printf("incompat_flags\t\t0x%llx\n",
(unsigned long long)btrfs_super_incompat_flags(sb));
print_readable_incompat_flag(btrfs_super_incompat_flags(sb));
--
2.10.2
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