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Groups > linux.kernel > #1201002 > unrolled thread
| Started by | Oleg Nesterov <oleg@redhat.com> |
|---|---|
| First post | 2015-08-05 19:20 +0200 |
| Last post | 2015-08-06 00:20 +0200 |
| Articles | 2 — 2 participants |
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Re: [PATCH 0/5] kmod: Cleanups, simplifications, and make isolation friendly v3 Oleg Nesterov <oleg@redhat.com> - 2015-08-05 19:20 +0200
Re: [PATCH 0/5] kmod: Cleanups, simplifications, and make isolation friendly v3 Frederic Weisbecker <fweisbec@gmail.com> - 2015-08-06 00:20 +0200
| From | Oleg Nesterov <oleg@redhat.com> |
|---|---|
| Date | 2015-08-05 19:20 +0200 |
| Subject | Re: [PATCH 0/5] kmod: Cleanups, simplifications, and make isolation friendly v3 |
| Message-ID | <pUawa-7PL-13@gated-at.bofh.it> |
On 07/27, Frederic Weisbecker wrote: > > Hence those two debatable changes: > > _ We would like to use generic workqueues. System unbound workqueues are > a very good candidate but they are not wide affine, only node affine. > Now probably a node is enough to perform many parallel kmod jobs. > > _ We would like to remove the wait_for_helper kernel thread (UMH_WAIT_PROC > handler) to use the workqueue. It means that if the workqueue blocks, > and no other worker can take pending kmod request, we can be screwed. > Now if we have 512 threads, this should be enough. I think this series is fine. Feel free to add my reviewed-by. Oleg. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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| From | Frederic Weisbecker <fweisbec@gmail.com> |
|---|---|
| Date | 2015-08-06 00:20 +0200 |
| Subject | Re: [PATCH 0/5] kmod: Cleanups, simplifications, and make isolation friendly v3 |
| Message-ID | <pUfcw-69Y-71@gated-at.bofh.it> |
| In reply to | #1201002 |
On Wed, Aug 05, 2015 at 07:10:57PM +0200, Oleg Nesterov wrote: > On 07/27, Frederic Weisbecker wrote: > > > > Hence those two debatable changes: > > > > _ We would like to use generic workqueues. System unbound workqueues are > > a very good candidate but they are not wide affine, only node affine. > > Now probably a node is enough to perform many parallel kmod jobs. > > > > _ We would like to remove the wait_for_helper kernel thread (UMH_WAIT_PROC > > handler) to use the workqueue. It means that if the workqueue blocks, > > and no other worker can take pending kmod request, we can be screwed. > > Now if we have 512 threads, this should be enough. > > I think this series is fine. Feel free to add my reviewed-by. Great! Andrew, if you're ok with it, can you please apply this set? Thanks a lot! -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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