Searched hist:e9be5a30 (Results 1 – 1 of 1) sorted by relevance
| /openbmc/linux/fs/btrfs/ |
| H A D | disk-io.c | e9be5a30 Thu Feb 27 14:00:47 CST 2020 David Sterba <dsterba@suse.com> btrfs: simplify tree block checksumming loop
Thw whole point of csum_tree_block is to iterate over all extent buffer
pages and pass it to checksumming functions. The bytes where checksum is
stored must be skipped, thus map_private_extent_buffer. This complicates
further offset calculations.
As the first page will be always present, checksum the relevant bytes
unconditionally and then do a simple iteration over the remaining pages.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
e9be5a30 Thu Feb 27 14:00:47 CST 2020 David Sterba <dsterba@suse.com> btrfs: simplify tree block checksumming loop
Thw whole point of csum_tree_block is to iterate over all extent buffer
pages and pass it to checksumming functions. The bytes where checksum is
stored must be skipped, thus map_private_extent_buffer. This complicates
further offset calculations.
As the first page will be always present, checksum the relevant bytes
unconditionally and then do a simple iteration over the remaining pages.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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