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btrfs-progs: Enhance and export print_objectid function

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This function is quite useful for a lot of error report.
Enhance it to support custom output other than stdout.
And export it for later btrfsck enhancement.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2016-08-29 16:08:59 +08:00 committed by David Sterba
parent 6819fbcdca
commit 7aafabd2b8
2 changed files with 31 additions and 29 deletions
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59
print-tree.c
View File

@ -707,97 +707,98 @@ static void print_key_type(u64 objectid, u8 type)
}; };
} }
static void print_objectid(u64 objectid, u8 type) void print_objectid(FILE *stream, u64 objectid, u8 type)
{ {
switch (type) { switch (type) {
case BTRFS_DEV_EXTENT_KEY: case BTRFS_DEV_EXTENT_KEY:
printf("%llu", (unsigned long long)objectid); /* device id */ /* device id */
fprintf(stream, "%llu", (unsigned long long)objectid);
return; return;
case BTRFS_QGROUP_RELATION_KEY: case BTRFS_QGROUP_RELATION_KEY:
printf("%llu/%llu", btrfs_qgroup_level(objectid), fprintf(stream, "%llu/%llu", btrfs_qgroup_level(objectid),
btrfs_qgroup_subvid(objectid)); btrfs_qgroup_subvid(objectid));
return; return;
case BTRFS_UUID_KEY_SUBVOL: case BTRFS_UUID_KEY_SUBVOL:
case BTRFS_UUID_KEY_RECEIVED_SUBVOL: case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
printf("0x%016llx", (unsigned long long)objectid); fprintf(stream, "0x%016llx", (unsigned long long)objectid);
return; return;
} }
switch (objectid) { switch (objectid) {
case BTRFS_ROOT_TREE_OBJECTID: case BTRFS_ROOT_TREE_OBJECTID:
if (type == BTRFS_DEV_ITEM_KEY) if (type == BTRFS_DEV_ITEM_KEY)
printf("DEV_ITEMS"); fprintf(stream, "DEV_ITEMS");
else else
printf("ROOT_TREE"); fprintf(stream, "ROOT_TREE");
break; break;
case BTRFS_EXTENT_TREE_OBJECTID: case BTRFS_EXTENT_TREE_OBJECTID:
printf("EXTENT_TREE"); fprintf(stream, "EXTENT_TREE");
break; break;
case BTRFS_CHUNK_TREE_OBJECTID: case BTRFS_CHUNK_TREE_OBJECTID:
printf("CHUNK_TREE"); fprintf(stream, "CHUNK_TREE");
break; break;
case BTRFS_DEV_TREE_OBJECTID: case BTRFS_DEV_TREE_OBJECTID:
printf("DEV_TREE"); fprintf(stream, "DEV_TREE");
break; break;
case BTRFS_FS_TREE_OBJECTID: case BTRFS_FS_TREE_OBJECTID:
printf("FS_TREE"); fprintf(stream, "FS_TREE");
break; break;
case BTRFS_ROOT_TREE_DIR_OBJECTID: case BTRFS_ROOT_TREE_DIR_OBJECTID:
printf("ROOT_TREE_DIR"); fprintf(stream, "ROOT_TREE_DIR");
break; break;
case BTRFS_CSUM_TREE_OBJECTID: case BTRFS_CSUM_TREE_OBJECTID:
printf("CSUM_TREE"); fprintf(stream, "CSUM_TREE");
break; break;
case BTRFS_BALANCE_OBJECTID: case BTRFS_BALANCE_OBJECTID:
printf("BALANCE"); fprintf(stream, "BALANCE");
break; break;
case BTRFS_ORPHAN_OBJECTID: case BTRFS_ORPHAN_OBJECTID:
printf("ORPHAN"); fprintf(stream, "ORPHAN");
break; break;
case BTRFS_TREE_LOG_OBJECTID: case BTRFS_TREE_LOG_OBJECTID:
printf("TREE_LOG"); fprintf(stream, "TREE_LOG");
break; break;
case BTRFS_TREE_LOG_FIXUP_OBJECTID: case BTRFS_TREE_LOG_FIXUP_OBJECTID:
printf("LOG_FIXUP"); fprintf(stream, "LOG_FIXUP");
break; break;
case BTRFS_TREE_RELOC_OBJECTID: case BTRFS_TREE_RELOC_OBJECTID:
printf("TREE_RELOC"); fprintf(stream, "TREE_RELOC");
break; break;
case BTRFS_DATA_RELOC_TREE_OBJECTID: case BTRFS_DATA_RELOC_TREE_OBJECTID:
printf("DATA_RELOC_TREE"); fprintf(stream, "DATA_RELOC_TREE");
break; break;
case BTRFS_EXTENT_CSUM_OBJECTID: case BTRFS_EXTENT_CSUM_OBJECTID:
printf("EXTENT_CSUM"); fprintf(stream, "EXTENT_CSUM");
break; break;
case BTRFS_FREE_SPACE_OBJECTID: case BTRFS_FREE_SPACE_OBJECTID:
printf("FREE_SPACE"); fprintf(stream, "FREE_SPACE");
break; break;
case BTRFS_FREE_INO_OBJECTID: case BTRFS_FREE_INO_OBJECTID:
printf("FREE_INO"); fprintf(stream, "FREE_INO");
break; break;
case BTRFS_QUOTA_TREE_OBJECTID: case BTRFS_QUOTA_TREE_OBJECTID:
printf("QUOTA_TREE"); fprintf(stream, "QUOTA_TREE");
break; break;
case BTRFS_UUID_TREE_OBJECTID: case BTRFS_UUID_TREE_OBJECTID:
printf("UUID_TREE"); fprintf(stream, "UUID_TREE");
break; break;
case BTRFS_FREE_SPACE_TREE_OBJECTID: case BTRFS_FREE_SPACE_TREE_OBJECTID:
printf("FREE_SPACE_TREE"); fprintf(stream, "FREE_SPACE_TREE");
break; break;
case BTRFS_MULTIPLE_OBJECTIDS: case BTRFS_MULTIPLE_OBJECTIDS:
printf("MULTIPLE"); fprintf(stream, "MULTIPLE");
break; break;
case (u64)-1: case (u64)-1:
printf("-1"); fprintf(stream, "-1");
break; break;
case BTRFS_FIRST_CHUNK_TREE_OBJECTID: case BTRFS_FIRST_CHUNK_TREE_OBJECTID:
if (type == BTRFS_CHUNK_ITEM_KEY) { if (type == BTRFS_CHUNK_ITEM_KEY) {
printf("FIRST_CHUNK_TREE"); fprintf(stream, "FIRST_CHUNK_TREE");
break; break;
} }
/* fall-thru */ /* fall-thru */
default: default:
printf("%llu", (unsigned long long)objectid); fprintf(stream, "%llu", (unsigned long long)objectid);
} }
} }
@ -808,7 +809,7 @@ void btrfs_print_key(struct btrfs_disk_key *disk_key)
u64 offset = btrfs_disk_key_offset(disk_key); u64 offset = btrfs_disk_key_offset(disk_key);
printf("key ("); printf("key (");
print_objectid(objectid, type); print_objectid(stdout, objectid, type);
printf(" "); printf(" ");
print_key_type(objectid, type); print_key_type(objectid, type);
switch (type) { switch (type) {

1
print-tree.h
View File

@ -24,4 +24,5 @@ void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *t, int foll
void btrfs_print_key(struct btrfs_disk_key *disk_key); void btrfs_print_key(struct btrfs_disk_key *disk_key);
void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk); void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk);
void print_extent_item(struct extent_buffer *eb, int slot, int metadata); void print_extent_item(struct extent_buffer *eb, int slot, int metadata);
void print_objectid(FILE *stream, u64 objectid, u8 type);
#endif #endif