RepoMirrors/btrfs-progs
1
0
Fork 0
mirror of https://github.com/kdave/btrfs-progs synced 2024-12-18 12:25:12 +00:00
Code Issues Packages Projects Releases Wiki Activity
0ebd1f47c5
btrfs-progs/kernel-shared
History
David Sterba 9f6c055e38 btrfs-progs: dump-tree: add options to dump checksums 
Add new options to dumps checksums in node headers and in the checksum
items:

  $ btrfs inspect dump-tree --csum-headers image
  root tree
  leaf 471515136 items 19 free space 12186 generation 15 owner ROOT_TREE
  leaf 471515136 flags 0x1(WRITTEN) backref revision 1 csum 0x756b2d54
  fs uuid df0348df-5773-47dd-81e9-a18221461239

For nodes/leaves it's appended on the 2nd line of the header.

Checksum items are stored in leaves as EXTENT_CSUM key type, with offset
value as the logical offset starting. As the array would be hard to
parse or match, each offset value is printed with the checksum. For
crc32c it's 4 values on a line, for xxhash it's 2 and for the long
256bit checksums it's one checksum per line.

  $ btrfs inspect dump-tree --csum-items image
  leaf 5423104 items 1 free space 30 generation 6 owner CSUM_TREE
  leaf 5423104 flags 0x1(WRITTEN) backref revision 1
  fs uuid bd7c981e-16ff-4081-a734-3ef5d50cafc1
  chunk uuid 13f4c76c-7845-4984-88ed-f01b52e05cf8
	  item 0 key (EXTENT_CSUM EXTENT_CSUM 22020096) itemoff 55 itemsize 16228
		  range start 22020096 end 38637568 length 16617472
		  [22020096] 0x8941f998 [22024192] 0x8941f998 [22028288] 0x8941f998 [22032384] 0x8941f998
		  [22036480] 0x8941f998 [22040576] 0x8941f998 [22044672] 0x8941f998 [22048768] 0x8941f998
		  ...

  $ btrfs inspect dump-tree --csum-items image
  leaf 5718016 items 1 free space 7746 generation 6 owner CSUM_TREE
  leaf 5718016 flags 0x1(WRITTEN) backref revision 1
  fs uuid f453a5b4-8b4a-4fbf-90a2-2925e4fe2335
  chunk uuid eb1da63b-248b-44c2-82da-71b2564bf50e
	  item 0 key (EXTENT_CSUM EXTENT_CSUM 52387840) itemoff 7771 itemsize 8512
		  range start 52387840 end 53477376 length 1089536
		  [52387840] 0x686ede9288c391e7e05026e56f2f91bfd879987a040ea98445dabc76f55b8e5f
		  [52391936] 0x686ede9288c391e7e05026e56f2f91bfd879987a040ea98445dabc76f55b8e5f
		  ...

The options are not on by default, the header checksum is not important
for the structures. Data checksums can be quite big so that would make
the dump long and without any actual data to match against.

Signed-off-by: David Sterba <dsterba@suse.com>
2021-06-19 22:07:49 +02:00
..
backref.c btrfs-progs: move transaction.c to kernel-shared/ 2020-08-31 17:01:06 +02:00
backref.h btrfs-progs: move extent_io.c to kernel-shared/ 2020-08-31 17:01:04 +02:00
ctree.c btrfs-progs: dump-tree: add options to dump checksums 2021-06-19 22:07:49 +02:00
ctree.h btrfs-progs: zoned: redirty clean extent buffers 2021-05-06 16:41:45 +02:00
delayed-ref.c btrfs-progs: move transaction.c to kernel-shared/ 2020-08-31 17:01:06 +02:00
delayed-ref.h btrfs-progs: move delayed-ref.[ch] to kernel-shared/ 2020-03-31 18:37:34 +02:00
dir-item.c btrfs-progs: make btrfs_lookup_dir_index in parity with kernel code 2020-08-31 17:09:49 +02:00
disk-io.c btrfs-progs: zoned: wipe temporary superblocks in superblock log zone 2021-05-06 16:41:46 +02:00
disk-io.h btrfs-progs: pass in fs_info to btrfs_csum_data 2021-03-24 22:20:19 +01:00
extent_io.c btrfs-progs: move volumes.c to kernel-shared/ 2020-08-31 17:01:06 +02:00
extent_io.h btrfs-progs: move extent_io.c to kernel-shared/ 2020-08-31 17:01:04 +02:00
extent-tree.c btrfs-progs: dump-tree: add options to dump checksums 2021-06-19 22:07:49 +02:00
file-item.c btrfs-progs: delete bogus zero checksum check 2021-05-08 00:58:51 +02:00
file.c btrfs-progs: move transaction.c to kernel-shared/ 2020-08-31 17:01:06 +02:00
free-space-cache.c btrfs-progs: move transaction.c to kernel-shared/ 2020-08-31 17:01:06 +02:00
free-space-cache.h btrfs-progs: move ctree.c to kernel-shared/ 2020-08-31 17:01:05 +02:00
free-space-tree.c btrfs-progs: mkfs: support free space tree as -R option 2020-09-08 22:06:04 +02:00
free-space-tree.h btrfs-progs: rename btrfs_block_group_cache to btrfs_block_group 2020-05-11 20:50:00 +02:00
inode-item.c btrfs-progs: move transaction.c to kernel-shared/ 2020-08-31 17:01:06 +02:00
inode.c btrfs-progs: make btrfs_lookup_dir_index in parity with kernel code 2020-08-31 17:09:49 +02:00
print-tree.c btrfs-progs: dump-tree: add options to dump checksums 2021-06-19 22:07:49 +02:00
print-tree.h btrfs-progs: dump-tree: add options to dump checksums 2021-06-19 22:07:49 +02:00
root-tree.c btrfs-progs: move transaction.c to kernel-shared/ 2020-08-31 17:01:06 +02:00
transaction.c btrfs-progs: zoned: redirty clean extent buffers 2021-05-06 16:41:45 +02:00
transaction.h btrfs-progs: move transaction.c to kernel-shared/ 2020-08-31 17:01:06 +02:00
ulist.c btrfs-progs: move ctree.c to kernel-shared/ 2020-08-31 17:01:05 +02:00
ulist.h btrfs-progs: build: drop kernel-lib from -I and update paths 2019-07-03 20:49:04 +02:00
uuid-tree.c btrfs-progs: move transaction.c to kernel-shared/ 2020-08-31 17:01:06 +02:00
volumes.c btrfs-progs: zoned: implement zoned chunk allocator 2021-05-06 16:41:45 +02:00
volumes.h btrfs-progs: zoned: implement zoned chunk allocator 2021-05-06 16:41:45 +02:00
zoned.c btrfs-progs: zoned: make it work without kernel support 2021-06-07 17:38:46 +02:00
zoned.h btrfs-progs: do not BUG_ON if btrfs_add_to_fsid succeeded to write superblock 2021-05-12 16:00:14 +02:00