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btrfs-progs: Allow btrfs-debug-tree to print human readable qgroup status flag.

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Now btrfs-debug-tree can print qgroup status flag as ON|INCONSISTENT
instead of 0x5.

BTW, this patch helped us to find a bug that INCONSISTENT flag is never
cleared in kernel.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
[renamed to qgroup_flags_to_str]
Signed-off-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
Qu Wenruo 2015-02-27 16:26:34 +08:00 committed by David Sterba
parent 9922c42701
commit 8f3330b23b
1 changed files with 23 additions and 7 deletions
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30
print-tree.c
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@ -203,6 +203,20 @@ static void bg_flags_to_str(u64 flags, char *ret)
} }
} }
/* Caller should ensure sizeof(*ret)>= 26 "OFF|SCANNING|INCONSISTENT" */
static void qgroup_flags_to_str(u64 flags, char *ret)
{
if (flags & BTRFS_QGROUP_STATUS_FLAG_ON)
strcpy(ret, "ON");
else
strcpy(ret, "OFF");
if (flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN)
strcat(ret, "|SCANNING");
if (flags & BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT)
strcat(ret, "|INCONSISTENT");
}
void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk) void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
{ {
int num_stripes = btrfs_chunk_num_stripes(eb, chunk); int num_stripes = btrfs_chunk_num_stripes(eb, chunk);
@ -801,7 +815,7 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
u32 nr = btrfs_header_nritems(l); u32 nr = btrfs_header_nritems(l);
u64 objectid; u64 objectid;
u32 type; u32 type;
char bg_flags_str[32]; char flags_str[32];
printf("leaf %llu items %d free space %d generation %llu owner %llu\n", printf("leaf %llu items %d free space %d generation %llu owner %llu\n",
(unsigned long long)btrfs_header_bytenr(l), nr, (unsigned long long)btrfs_header_bytenr(l), nr,
@ -920,13 +934,13 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
struct btrfs_block_group_item); struct btrfs_block_group_item);
read_extent_buffer(l, &bg_item, (unsigned long)bi, read_extent_buffer(l, &bg_item, (unsigned long)bi,
sizeof(bg_item)); sizeof(bg_item));
memset(bg_flags_str, 0, sizeof(bg_flags_str)); memset(flags_str, 0, sizeof(flags_str));
bg_flags_to_str(btrfs_block_group_flags(&bg_item), bg_flags_to_str(btrfs_block_group_flags(&bg_item),
bg_flags_str); flags_str);
printf("\t\tblock group used %llu chunk_objectid %llu flags %s\n", printf("\t\tblock group used %llu chunk_objectid %llu flags %s\n",
(unsigned long long)btrfs_block_group_used(&bg_item), (unsigned long long)btrfs_block_group_used(&bg_item),
(unsigned long long)btrfs_block_group_chunk_objectid(&bg_item), (unsigned long long)btrfs_block_group_chunk_objectid(&bg_item),
bg_flags_str); flags_str);
break; break;
case BTRFS_CHUNK_ITEM_KEY: case BTRFS_CHUNK_ITEM_KEY:
print_chunk(l, btrfs_item_ptr(l, i, struct btrfs_chunk)); print_chunk(l, btrfs_item_ptr(l, i, struct btrfs_chunk));
@ -953,14 +967,16 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
case BTRFS_QGROUP_STATUS_KEY: case BTRFS_QGROUP_STATUS_KEY:
qg_status = btrfs_item_ptr(l, i, qg_status = btrfs_item_ptr(l, i,
struct btrfs_qgroup_status_item); struct btrfs_qgroup_status_item);
printf("\t\tversion %llu generation %llu flags %#llx " memset(flags_str, 0, sizeof(flags_str));
qgroup_flags_to_str(btrfs_qgroup_status_flags(l, qg_status),
flags_str);
printf("\t\tversion %llu generation %llu flags %s "
"scan %lld\n", "scan %lld\n",
(unsigned long long) (unsigned long long)
btrfs_qgroup_status_version(l, qg_status), btrfs_qgroup_status_version(l, qg_status),
(unsigned long long) (unsigned long long)
btrfs_qgroup_status_generation(l, qg_status), btrfs_qgroup_status_generation(l, qg_status),
(unsigned long long) flags_str,
btrfs_qgroup_status_flags(l, qg_status),
(unsigned long long) (unsigned long long)
btrfs_qgroup_status_scan(l, qg_status)); btrfs_qgroup_status_scan(l, qg_status));
break; break;