Re: [dm-devel] DM-CRYPT: Scale to multiple CPUs v3

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From: Andi Kleen
Date: Sunday, October 10, 2010 - 1:20 pm

> But previously, there were threads per device, so if one IO thread blocks,

That path calls the crypto worker thread, not the IO worker thread?
crypto worker should be fine here, only IO worker would be a problem
I think because crypto doesn't really block on nested IO.

-Andi

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Messages in current thread:
[PATCH] DM-CRYPT: Scale to multiple CPUs v3, Andi Kleen, (Sun Oct 10, 4:59 am)
Re: DM-CRYPT: Scale to multiple CPUs v3, Mike Snitzer, (Sun Oct 10, 9:22 am)
Re: DM-CRYPT: Scale to multiple CPUs v3, Milan Broz, (Sun Oct 10, 9:41 am)
Re: DM-CRYPT: Scale to multiple CPUs v3, Alasdair G Kergon, (Sun Oct 10, 10:01 am)
Re: DM-CRYPT: Scale to multiple CPUs v3, Mike Snitzer, (Sun Oct 10, 10:07 am)
Re: DM-CRYPT: Scale to multiple CPUs v3, Andi Kleen, (Sun Oct 10, 10:44 am)
Re: [dm-devel] DM-CRYPT: Scale to multiple CPUs v3, Alasdair G Kergon, (Sun Oct 10, 11:17 am)
Re: [dm-devel] DM-CRYPT: Scale to multiple CPUs v3, Alasdair G Kergon, (Sun Oct 10, 11:48 am)
Re: [dm-devel] DM-CRYPT: Scale to multiple CPUs v3, Andi Kleen, (Sun Oct 10, 11:51 am)
Re: [dm-devel] DM-CRYPT: Scale to multiple CPUs v3, Alasdair G Kergon, (Sun Oct 10, 12:07 pm)
Re: [dm-devel] DM-CRYPT: Scale to multiple CPUs v3, Andi Kleen, (Sun Oct 10, 12:16 pm)
Re: [dm-devel] DM-CRYPT: Scale to multiple CPUs v3, Milan Broz, (Sun Oct 10, 12:31 pm)
Re: [dm-devel] DM-CRYPT: Scale to multiple CPUs v3, Andi Kleen, (Sun Oct 10, 1:20 pm)
Re: [dm-devel] DM-CRYPT: Scale to multiple CPUs v3, Milan Broz, (Mon Oct 11, 2:32 am)
Re: [dm-devel] [PATCH] DM-CRYPT: Scale to multiple CPUs v3, Alasdair G Kergon, (Wed Oct 20, 10:32 am)