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btrfs-progs: Add human readable flags output for chunk/block group type. 

Current btrfs-debug-tree output chunk/block group type as numbers,
which makes it hard to understand and need to check the source to
understand the meaning.

This patch will convert numeric type output to human readable strings.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
Qu Wenruo 2014-06-12 15:12:32 +08:00 committed by David Sterba
parent 0ca416890c
commit 700c3ca9b1
1 changed files with 54 additions and 5 deletions
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59
print-tree.c
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@ -160,15 +160,60 @@ static int print_inode_ref_item(struct extent_buffer *eb, struct btrfs_item *ite
return 0; return 0;
} }
/* Caller should ensure sizeof(*ret)>=21 "DATA|METADATA|RAID10" */
static void bg_flags_to_str(u64 flags, char *ret)
{
int empty = 1;
if (flags & BTRFS_BLOCK_GROUP_DATA) {
empty = 0;
strcpy(ret, "DATA");
}
if (flags & BTRFS_BLOCK_GROUP_METADATA) {
if (!empty)
strcat(ret, "|");
strcat(ret, "METADATA");
}
if (flags & BTRFS_BLOCK_GROUP_SYSTEM) {
if (!empty)
strcat(ret, "|");
strcat(ret, "SYSTEM");
}
switch (flags & BTRFS_BLOCK_GROUP_PROFILE_MASK) {
case BTRFS_BLOCK_GROUP_RAID0:
strcat(ret, "|RAID0");
break;
case BTRFS_BLOCK_GROUP_RAID1:
strcat(ret, "|RAID1");
break;
case BTRFS_BLOCK_GROUP_DUP:
strcat(ret, "|DUP");
break;
case BTRFS_BLOCK_GROUP_RAID10:
strcat(ret, "|RAID10");
break;
case BTRFS_BLOCK_GROUP_RAID5:
strcat(ret, "|RAID5");
break;
case BTRFS_BLOCK_GROUP_RAID6:
strcat(ret, "|RAID6");
break;
default:
break;
}
}
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);
int i; int i;
printf("\t\tchunk length %llu owner %llu type %llu num_stripes %d\n", char chunk_flags_str[32] = {0};
bg_flags_to_str(btrfs_chunk_type(eb, chunk), chunk_flags_str);
printf("\t\tchunk length %llu owner %llu type %s num_stripes %d\n",
(unsigned long long)btrfs_chunk_length(eb, chunk), (unsigned long long)btrfs_chunk_length(eb, chunk),
(unsigned long long)btrfs_chunk_owner(eb, chunk), (unsigned long long)btrfs_chunk_owner(eb, chunk),
(unsigned long long)btrfs_chunk_type(eb, chunk), chunk_flags_str, num_stripes);
num_stripes);
for (i = 0 ; i < num_stripes ; i++) { for (i = 0 ; i < num_stripes ; i++) {
printf("\t\t\tstripe %d devid %llu offset %llu\n", i, printf("\t\t\tstripe %d devid %llu offset %llu\n", i,
(unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i), (unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i),
@ -752,6 +797,7 @@ 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];
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,
@ -866,10 +912,13 @@ 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));
printf("\t\tblock group used %llu chunk_objectid %llu flags %llu\n", memset(bg_flags_str, 0, sizeof(bg_flags_str));
bg_flags_to_str(btrfs_block_group_flags(&bg_item),
bg_flags_str);
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),
(unsigned long long)btrfs_block_group_flags(&bg_item)); bg_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));