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btrfs-progs: add dump tree support for the raid stripe tree

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Add support for the RAID stripe tree to btrfs inspect-internal dump-tree.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Johannes Thumshirn 2023-09-14 09:05:34 -07:00 committed by David Sterba
parent b6490733a8
commit 81d6ecd5c2
3 changed files with 57 additions and 0 deletions
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5
cmds/inspect-dump-tree.c
View file

@ -170,6 +170,7 @@ static u64 treeid_from_string(const char *str, const char **end)
{ "TREE_RELOC", BTRFS_TREE_RELOC_OBJECTID },
{ "DATA_RELOC", BTRFS_DATA_RELOC_TREE_OBJECTID },
{ "BLOCK_GROUP_TREE", BTRFS_BLOCK_GROUP_TREE_OBJECTID },
{ "RAID_STRIPE", BTRFS_RAID_STRIPE_TREE_OBJECTID },
};
if (strncasecmp("BTRFS_", str, strlen("BTRFS_")) == 0)
@ -696,6 +697,10 @@ again:
if (!skip)
pr_verbose(LOG_DEFAULT, "block group");
break;
case BTRFS_RAID_STRIPE_TREE_OBJECTID:
if (!skip)
printf("raid stripe");
break;
default:
if (!skip) {
pr_verbose(LOG_DEFAULT, "file");

2
kernel-shared/ctree.h
View file

@ -652,6 +652,8 @@ static inline u32 BTRFS_MAX_XATTR_SIZE(const struct btrfs_fs_info *info)
#define BTRFS_DEV_ITEM_KEY 216
#define BTRFS_CHUNK_ITEM_KEY 228
#define BTRFS_RAID_STRIPE_KEY 230
#define BTRFS_BALANCE_ITEM_KEY 248
/*

50
kernel-shared/print-tree.c
View file

@ -637,6 +637,49 @@ static void print_free_space_header(struct extent_buffer *leaf, int slot)
(unsigned long long)btrfs_free_space_bitmaps(leaf, header));
}
struct raid_encoding_map {
u8 encoding;
char name[16];
};
static const struct raid_encoding_map raid_map[] = {
{ BTRFS_STRIPE_DUP, "DUP" },
{ BTRFS_STRIPE_RAID0, "RAID0" },
{ BTRFS_STRIPE_RAID1, "RAID1" },
{ BTRFS_STRIPE_RAID1C3, "RAID1C3" },
{ BTRFS_STRIPE_RAID1C4, "RAID1C4" },
{ BTRFS_STRIPE_RAID5, "RAID5" },
{ BTRFS_STRIPE_RAID6, "RAID6" },
{ BTRFS_STRIPE_RAID10, "RAID10" }
};
static const char *stripe_encoding_name(u8 encoding)
{
for (int i = 0; i < ARRAY_SIZE(raid_map); i++) {
if (raid_map[i].encoding == encoding)
return raid_map[i].name;
}
return "UNKNOWN";
}
static void print_raid_stripe_key(struct extent_buffer *eb,
u32 item_size, struct btrfs_stripe_extent *stripe)
{
int num_stripes;
u8 encoding = btrfs_stripe_extent_encoding(eb, stripe);
num_stripes = (item_size - offsetof(struct btrfs_stripe_extent, strides)) /
sizeof(struct btrfs_raid_stride);
printf("\t\t\tencoding: %s\n", stripe_encoding_name(encoding));
for (int i = 0; i < num_stripes; i++)
printf("\t\t\tstripe %d devid %llu physical %llu length %llu\n", i,
(unsigned long long)btrfs_raid_stride_devid_nr(eb, stripe, i),
(unsigned long long)btrfs_raid_stride_offset_nr(eb, stripe, i),
(unsigned long long)btrfs_raid_stride_length_nr(eb, stripe, i));
}
void print_key_type(FILE *stream, u64 objectid, u8 type)
{
static const char* key_to_str[256] = {
@ -681,6 +724,7 @@ void print_key_type(FILE *stream, u64 objectid, u8 type)
[BTRFS_PERSISTENT_ITEM_KEY] = "PERSISTENT_ITEM",
[BTRFS_UUID_KEY_SUBVOL] = "UUID_KEY_SUBVOL",
[BTRFS_UUID_KEY_RECEIVED_SUBVOL] = "UUID_KEY_RECEIVED_SUBVOL",
[BTRFS_RAID_STRIPE_KEY] = "RAID_STRIPE",
};
if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID) {
@ -793,6 +837,9 @@ void print_objectid(FILE *stream, u64 objectid, u8 type)
case BTRFS_CSUM_CHANGE_OBJECTID:
fprintf(stream, "CSUM_CHANGE");
break;
case BTRFS_RAID_STRIPE_TREE_OBJECTID:
fprintf(stream, "RAID_STRIPE_TREE");
break;
case (u64)-1:
fprintf(stream, "-1");
break;
@ -1469,6 +1516,9 @@ void btrfs_print_leaf(struct extent_buffer *eb, unsigned int mode)
case BTRFS_TEMPORARY_ITEM_KEY:
print_temporary_item(eb, ptr, objectid, offset);
break;
case BTRFS_RAID_STRIPE_KEY:
print_raid_stripe_key(eb, item_size, ptr);
break;
};
fflush(stdout);
}