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https://github.com/kdave/btrfs-progs
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13a6cff8b6
btrfs_alloc_data_chunk() and create_chunk() have the most part in common. Let's rewrite btrfs_alloc_data_chunk() using create_chunk(). There are two differences between btrfs_alloc_data_chunk() and create_chunk(). create_chunk() uses find_next_chunk() to decide the logical address of the chunk, and it uses btrfs_alloc_dev_extent() to decide the physical address of a device extent. On the other hand, btrfs_alloc_data_chunk() uses *start for both logical and physical addresses. To support the btrfs_alloc_data_chunk()'s use case, we use ctl->start and ctl->dev_offset. If these values are set (non-zero), use the specified values as the address. It is safe to use 0 to indicate the value is not set here. Because both lower addresses of logical (0..BTRFS_FIRST_CHUNK_TREE_OBJECT_ID) and physical (0..BTRFS_BLOCK_RESERVED_1M_FOR_SUPER) are reserved. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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| .. | ||
| backref.c | ||
| backref.h | ||
| ctree.c | ||
| ctree.h | ||
| delayed-ref.c | ||
| delayed-ref.h | ||
| dir-item.c | ||
| disk-io.c | ||
| disk-io.h | ||
| extent_io.c | ||
| extent_io.h | ||
| extent-tree.c | ||
| file-item.c | ||
| file.c | ||
| free-space-cache.c | ||
| free-space-cache.h | ||
| free-space-tree.c | ||
| free-space-tree.h | ||
| inode-item.c | ||
| inode.c | ||
| print-tree.c | ||
| print-tree.h | ||
| root-tree.c | ||
| transaction.c | ||
| transaction.h | ||
| ulist.c | ||
| ulist.h | ||
| uuid-tree.c | ||
| volumes.c | ||
| volumes.h | ||