Messages in this thread | | | Date | Thu, 13 Dec 2018 09:29:27 -0500 | From | Sasha Levin <> | Subject | Re: 4.14 backport request for dbdda842fe96f: "printk: Add console owner and waiter logic to load balance console writes" |
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On Thu, Dec 13, 2018 at 10:59:31AM +0100, Petr Mladek wrote: >On Wed 2018-12-12 18:39:42, Daniel Wang wrote: >> > Additionally, for dbdda842fe96f to work as expected we really >> need fd5f7cde1b85d4c. Otherwise printk() can schedule under >> console_sem and console_owner, which will deactivate the "load >> balance" logic. >> >> It looks like fd5f7cde1b85d4c got into 4.14.82 that was released last month. >> >> On Wed, Dec 12, 2018 at 6:27 PM Sergey Senozhatsky >> <sergey.senozhatsky.work@gmail.com> wrote: >> > >> > On (12/12/18 16:40), Daniel Wang wrote: >> > > In case this was buried in previous messages, the commit I'd like to >> > > get backported to 4.14 is dbdda842fe96f: printk: Add console owner and >> > > waiter logic to load balance console writes. But another followup >> > > patch that fixes a bug in that patch is also required. That is >> > > c14376de3a1b: printk: Wake klogd when passing console_lock owner. >> > >> > Additionally, for dbdda842fe96f to work as expected we really >> > need fd5f7cde1b85d4c. Otherwise printk() can schedule under >> > console_sem and console_owner, which will deactivate the "load >> > balance" logic. > >To make it clear. Please, make sure that the following commits are >backported together: > >+ dbdda842fe96f8932ba ("printk: Add console owner and waiter > logic to load balance console writes") >+ c162d5b4338d72deed6 ("printk: Hide console waiter logic into > helpers") >+ fd5f7cde1b85d4c8e09 ("printk: Never set console_may_schedule > in console_trylock()") >+ c14376de3a1befa70d9 ("printk: Wake klogd when passing > console_lock owner") > > >I generated this list from git log using "Fixes:" tag. It seems >to mention all commits dicussed above.
All 4 queued for 4.14, thank you.
-- Thanks, Sasha
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