btrfs: switch to on-stack csum buffer in csum_tree_block

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The maximum size of a checksum buffer is known, BTRFS_CSUM_SIZE, and we
don't have to allocate it dynamically. This code path is not used at all
as we have only the crc32c and use an on-stack buffer already.

Signed-off-by: David Sterba <dsterba@suse.com>

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This commit is contained in:

David Sterba 2017-11-06 19:23:00 +01:00

parent 343e4fc1c6

commit 71a635516c

1 changed files with 3 additions and 13 deletions

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fs/btrfs/disk-io.c

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