btrfs: reuse existing variable in scrub_stripe, reduce stack usage
The key variable occupies 17 bytes, the key_start is used once, we can
simply reuse existing 'key' for that purpose. As the key is not a simple
type, compiler doest not do it on itself.
Signed-off-by:
David Sterba <dsterba@suse.com>
parent
49a3c4d9
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