David Sterba
2014-Apr-22 13:20 UTC
[PATCH] btrfs-progs: read global reserve size from space infos
Kernels 3.15 > export the global block reserve as a space info presented
by 'btrfs fi df' but would display 'unknown' instead of some
meaningful
string.
Signed-off-by: David Sterba <dsterba@suse.cz>
---
Global_rsv or GlobalRsv or Globalrsv or something else?
cmds-filesystem.c | 2 ++
ctree.h | 2 ++
2 files changed, 4 insertions(+)
diff --git a/cmds-filesystem.c b/cmds-filesystem.c
index 306f715475ac..5a3bbca91458 100644
--- a/cmds-filesystem.c
+++ b/cmds-filesystem.c
@@ -129,6 +129,8 @@ static char *group_type_str(u64 flag)
return "Metadata";
case BTRFS_BLOCK_GROUP_DATA|BTRFS_BLOCK_GROUP_METADATA:
return "Data+Metadata";
+ case BTRFS_SPACE_INFO_GLOBAL_RSV:
+ return "Global_rsv";
default:
return "unknown";
}
diff --git a/ctree.h b/ctree.h
index a4d2cd114614..7e8ced718931 100644
--- a/ctree.h
+++ b/ctree.h
@@ -861,6 +861,8 @@ struct btrfs_csum_item {
/* used in struct btrfs_balance_args fields */
#define BTRFS_AVAIL_ALLOC_BIT_SINGLE (1ULL << 48)
+#define BTRFS_SPACE_INFO_GLOBAL_RSV (1ULL << 49)
+
#define BTRFS_QGROUP_STATUS_OFF 0
#define BTRFS_QGROUP_STATUS_ON 1
#define BTRFS_QGROUP_STATUS_SCANNING 2
--
1.9.0
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