From: Herbert Xu <herbert@gondor.apana.org.au>
To: Mikulas Patocka <mpatocka@redhat.com>
Cc: "David S. Miller" <davem@davemloft.net>,
linux-crypto@vger.kernel.org, Mike Snitzer <msnitzer@redhat.com>,
Milan Broz <mbroz@redhat.com>,
dm-devel@redhat.com, linux-kernel@vger.kernel.org
Subject: Re: crypto API and GFP_ATOMIC
Date: Wed, 10 Jun 2020 11:04:50 +1000 [thread overview]
Message-ID: <20200610010450.GA6449@gondor.apana.org.au> (raw)
In-Reply-To: <alpine.LRH.2.02.2006091259250.30590@file01.intranet.prod.int.rdu2.redhat.com>
On Tue, Jun 09, 2020 at 01:11:05PM -0400, Mikulas Patocka wrote:
>
> Do you have another idea how to solve this problem?
I think the better approach would be to modify the drivers to not
allocate any memory. In general, any memory needed by the driver
to fulfil a request *should* be allocated within the crypto request
object. That's why we have the reqsize field to indicate how much
memory could be needed per request.
Thanks,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
next prev parent reply other threads:[~2020-06-10 1:05 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-09 17:11 crypto API and GFP_ATOMIC Mikulas Patocka
2020-06-10 1:04 ` Herbert Xu [this message]
2020-06-10 12:02 ` Mikulas Patocka
2020-06-10 12:11 ` Herbert Xu
2020-06-16 15:01 ` Mikulas Patocka
2020-06-16 15:01 ` Mikulas Patocka
2020-06-16 15:01 ` [PATCH 1/4] crypto: introduce CRYPTO_ALG_ALLOCATES_MEMORY Mikulas Patocka
2020-06-16 17:36 ` [dm-devel] " Eric Biggers
2020-06-17 15:08 ` Mikulas Patocka
2020-06-17 15:09 ` [PATCH 1/3] crypto: pass the flag CRYPTO_ALG_ALLOCATES_MEMORY Mikulas Patocka
2020-06-17 15:09 ` Mikulas Patocka
2020-06-26 4:45 ` Herbert Xu
2020-06-26 15:17 ` Mikulas Patocka
2020-06-26 16:16 ` [PATCH 1/3 v2] crypto: introduce " Mikulas Patocka
2020-06-26 16:46 ` Eric Biggers
2020-06-26 17:00 ` [dm-devel] " Eric Biggers
2020-06-28 19:07 ` Mikulas Patocka
2020-06-28 19:07 ` Mikulas Patocka
2020-06-28 19:50 ` [dm-devel] " Eric Biggers
2020-06-30 13:57 ` Mikulas Patocka
2020-06-28 20:00 ` Eric Biggers
2020-06-29 13:17 ` Mikulas Patocka
2020-06-29 13:17 ` Mikulas Patocka
2020-06-30 13:45 ` [dm-devel] " Mikulas Patocka
2020-06-28 19:04 ` Mikulas Patocka
2020-06-28 19:46 ` Eric Biggers
2020-06-28 19:05 ` [PATCH 1/3 v3] " Mikulas Patocka
2020-06-30 13:56 ` [PATCH 1/3 v4] " Mikulas Patocka
2020-06-30 16:35 ` [dm-devel] " Eric Biggers
2020-06-30 17:01 ` Mikulas Patocka
2020-06-30 17:01 ` Mikulas Patocka
2020-06-30 17:02 ` [PATCH 1/3 v5] " Mikulas Patocka
2020-06-30 17:57 ` [dm-devel] [PATCH 1/3 v4] " Eric Biggers
2020-06-30 18:14 ` Mikulas Patocka
2020-06-30 18:15 ` [PATCH 1/3 v6] " Mikulas Patocka
2020-07-01 1:49 ` Herbert Xu
2020-06-17 15:10 ` [PATCH 2/3] crypto: set " Mikulas Patocka
2020-06-17 15:10 ` Mikulas Patocka
2020-06-17 15:11 ` [PATCH 3/3] dm-crypt: don't use drivers that have CRYPTO_ALG_ALLOCATES_MEMORY Mikulas Patocka
2020-06-16 15:01 ` [PATCH 2/4] crypto: pass the flag CRYPTO_ALG_ALLOCATES_MEMORY Mikulas Patocka
2020-06-16 17:42 ` [dm-devel] " Eric Biggers
2020-06-16 15:02 ` [PATCH 3/4] crypto: set " Mikulas Patocka
2020-06-16 15:02 ` Mikulas Patocka
2020-06-16 17:43 ` [dm-devel] " Eric Biggers
2020-06-16 15:02 ` [PATCH 4/4] crypto: fix the drivers that don't respect CRYPTO_TFM_REQ_MAY_SLEEP Mikulas Patocka
2020-06-16 17:50 ` [dm-devel] " Eric Biggers
2020-06-16 18:18 ` Mikulas Patocka
2020-06-16 18:23 ` Eric Biggers
2020-06-17 13:46 ` Mikulas Patocka
2020-06-17 13:48 ` [PATCH 1/2] cpt-crypto: don't sleep of CRYPTO_TFM_REQ_MAY_SLEEP was not specified Mikulas Patocka
2020-06-26 6:07 ` Herbert Xu
2020-06-17 13:49 ` [PATCH 2/2] hisilicon-crypto: " Mikulas Patocka
2020-06-17 13:49 ` Mikulas Patocka
2020-06-17 14:11 ` [dm-devel] " Jonathan Cameron
2020-06-17 14:11 ` Jonathan Cameron
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200610010450.GA6449@gondor.apana.org.au \
--to=herbert@gondor.apana.org.au \
--cc=davem@davemloft.net \
--cc=dm-devel@redhat.com \
--cc=linux-crypto@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mbroz@redhat.com \
--cc=mpatocka@redhat.com \
--cc=msnitzer@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.