crypto: sha512-mb - Protect sha512 mb ctx mgr access

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The flusher and regular multi-buffer computation via mcryptd may race with another.
Add here a lock and turn off interrupt to to access multi-buffer
computation state cstate->mgr before a round of computation. This should
prevent the flusher code jumping in.

Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Tim Chen 2017-02-01 10:45:02 -08:00 • committed by Herbert Xu

parent 5d3d9c8bda

commit c459bd7bed

1 changed files with 42 additions and 22 deletions

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arch/x86/crypto/sha512-mb/sha512_mb.c

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