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https://github.com/kdave/btrfs-progs
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08a3bd7694
This patch would modify btrfs_csum_file_block() to handle csum type other than the one used in the current fs. The new data checksum would use a different objectid (-13) to distinguish with the existing one (-10). This needs to change tree-checker to skip the item size checks, since new csum can be larger than the original csum. After this stage, the resulted csum tree would look like this: item 0 key (CSUM_CHANGE EXTENT_CSUM 13631488) itemoff 8091 itemsize 8192 range start 13631488 end 22020096 length 8388608 item 1 key (EXTENT_CSUM EXTENT_CSUM 13631488) itemoff 7067 itemsize 1024 range start 13631488 end 14680064 length 1048576 Note the itemsize is 8 times the original one, as the original csum is CRC32, while target csum is SHA256, which is 8 times the size. Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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| .. | ||
| change-csum.c | ||
| change-metadata-uuid.c | ||
| change-uuid.c | ||
| convert-bgt.c | ||
| main.c | ||
| seeding.c | ||
| tune.h | ||