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btrfs-progs: Enhance and export print_objectid function 

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) {
case BTRFS_DEV_EXTENT_KEY:
printf("%llu", (unsigned long long)objectid); /* device id */
/* device id */
fprintf(stream, "%llu", (unsigned long long)objectid);
return;
case BTRFS_QGROUP_RELATION_KEY:
printf("%llu/%llu", btrfs_qgroup_level(objectid),
fprintf(stream, "%llu/%llu", btrfs_qgroup_level(objectid),
btrfs_qgroup_subvid(objectid));
return;
case BTRFS_UUID_KEY_SUBVOL:
case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
printf("0x%016llx", (unsigned long long)objectid);
fprintf(stream, "0x%016llx", (unsigned long long)objectid);
return;
}
switch (objectid) {
case BTRFS_ROOT_TREE_OBJECTID:
if (type == BTRFS_DEV_ITEM_KEY)
printf("DEV_ITEMS");
fprintf(stream, "DEV_ITEMS");
else
printf("ROOT_TREE");
fprintf(stream, "ROOT_TREE");
break;
case BTRFS_EXTENT_TREE_OBJECTID:
printf("EXTENT_TREE");
fprintf(stream, "EXTENT_TREE");
break;
case BTRFS_CHUNK_TREE_OBJECTID:
printf("CHUNK_TREE");
fprintf(stream, "CHUNK_TREE");
break;
case BTRFS_DEV_TREE_OBJECTID:
printf("DEV_TREE");
fprintf(stream, "DEV_TREE");
break;
case BTRFS_FS_TREE_OBJECTID:
printf("FS_TREE");
fprintf(stream, "FS_TREE");
break;
case BTRFS_ROOT_TREE_DIR_OBJECTID:
printf("ROOT_TREE_DIR");
fprintf(stream, "ROOT_TREE_DIR");
break;
case BTRFS_CSUM_TREE_OBJECTID:
printf("CSUM_TREE");
fprintf(stream, "CSUM_TREE");
break;
case BTRFS_BALANCE_OBJECTID:
printf("BALANCE");
fprintf(stream, "BALANCE");
break;
case BTRFS_ORPHAN_OBJECTID:
printf("ORPHAN");
fprintf(stream, "ORPHAN");
break;
case BTRFS_TREE_LOG_OBJECTID:
printf("TREE_LOG");
fprintf(stream, "TREE_LOG");
break;
case BTRFS_TREE_LOG_FIXUP_OBJECTID:
printf("LOG_FIXUP");
fprintf(stream, "LOG_FIXUP");
break;
case BTRFS_TREE_RELOC_OBJECTID:
printf("TREE_RELOC");
fprintf(stream, "TREE_RELOC");
break;
case BTRFS_DATA_RELOC_TREE_OBJECTID:
printf("DATA_RELOC_TREE");
fprintf(stream, "DATA_RELOC_TREE");
break;
case BTRFS_EXTENT_CSUM_OBJECTID:
printf("EXTENT_CSUM");
fprintf(stream, "EXTENT_CSUM");
break;
case BTRFS_FREE_SPACE_OBJECTID:
printf("FREE_SPACE");
fprintf(stream, "FREE_SPACE");
break;
case BTRFS_FREE_INO_OBJECTID:
printf("FREE_INO");
fprintf(stream, "FREE_INO");
break;
case BTRFS_QUOTA_TREE_OBJECTID:
printf("QUOTA_TREE");
fprintf(stream, "QUOTA_TREE");
break;
case BTRFS_UUID_TREE_OBJECTID:
printf("UUID_TREE");
fprintf(stream, "UUID_TREE");
break;
case BTRFS_FREE_SPACE_TREE_OBJECTID:
printf("FREE_SPACE_TREE");
fprintf(stream, "FREE_SPACE_TREE");
break;
case BTRFS_MULTIPLE_OBJECTIDS:
printf("MULTIPLE");
fprintf(stream, "MULTIPLE");
break;
case (u64)-1:
printf("-1");
fprintf(stream, "-1");
break;
case BTRFS_FIRST_CHUNK_TREE_OBJECTID:
if (type == BTRFS_CHUNK_ITEM_KEY) {
printf("FIRST_CHUNK_TREE");
fprintf(stream, "FIRST_CHUNK_TREE");
break;
}
/* fall-thru */
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);
printf("key (");
print_objectid(objectid, type);
print_objectid(stdout, objectid, type);
printf(" ");
print_key_type(objectid, 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 print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk);
void print_extent_item(struct extent_buffer *eb, int slot, int metadata);
void print_objectid(FILE *stream, u64 objectid, u8 type);
#endif