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dm: move dm-verity to generic async completion

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dm-verity is starting async. crypto ops and waiting for them to complete.
Move it over to generic code doing the same.

This also avoids a future potential data coruption bug created
by the use of wait_for_completion_interruptible() without dealing
correctly with an interrupt aborting the wait prior to the
async op finishing, should this code ever move to a context
where signals are not masked.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
CC: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Gilad Ben-Yossef
2017-10-18 08:00:45 +01:00
committed by Herbert Xu
parent d0082e1a7c
commit 12f1ffc40a
2 changed files with 20 additions and 66 deletions
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5
drivers/md/dm-verity.h
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@@ -90,11 +90,6 @@ struct dm_verity_io {
*/
};
struct verity_result {
struct completion completion;
int err;
};
static inline struct ahash_request *verity_io_hash_req(struct dm_verity *v,
struct dm_verity_io *io)
{