Add btrfs helpers#608
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morbidrsa wants to merge 2 commits intoosandov:mainfrom
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Add btrfs helpers to drgn. Currently this only consists of btrfs_header(eb) to get ``struct btrfs_header`` from an extent_buffer and BRTFS_EXTENT_BUFFER_FLAGS to be able to pretty print an extent_buffer's flags using drgn's decode_flags() function. Also add BTRFS_BLOCK_GROUP_FLAGS and BTRFS_BLOCK_GROUP_RUNTIME_FLAGS to decode the flags and runtime flags of a ``struct btrfs_block_group``. Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Now that drgn.helpers.linux.btrfs is there and has BTRFS_BLOCK_GROUP_RUNTIME_FLAGS as well as BTRFS_BLOCK_GROUP_RUNTIME_FLAGS definitions, use the ones built-in in dump_btrfs_bgs.py. Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
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Thanks for this! I'm out of the office until March 30, so I'll take a look when I get back. |
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First small batch of helpers for debugging btrfs with drgn.