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Groups > linux.kernel > #1204871
| From | Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] zram: fix possible race when checking idle_strm |
| Date | 2015-08-11 10:30 +0200 |
| Message-ID | <pWd6y-82q-19@gated-at.bofh.it> (permalink) |
| References | (1 earlier) <pULYK-3ya-29@gated-at.bofh.it> <pUMBt-4hC-29@gated-at.bofh.it> <pVJ8u-5nJ-17@gated-at.bofh.it> <pW4FY-4dI-9@gated-at.bofh.it> <pWd6y-82q-21@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On (08/11/15 17:25), Joonsoo Kim wrote: [..] > > "SLEEP AND WAKE-UP FUNCTIONS > > --------------------------- > > > > Sleeping and waking on an event flagged in global data ... > > ... > > ... > > ... > > > > A general memory barrier is interpolated automatically by set_current_state() > > after it has altered the task state:" > > > > So I think your T1-7 assumption is not true. > > > > As well, there are many examples under drivers/ to use the global data > > as event flag without locking or atomic. > > > > Okay. Now, I'm convinced that race is not possible. I will drop this > patch. yep, Minchan found it first. thanks guys. -ss -- 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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[PATCH] zram: fix possible race when checking idle_strm Joonsoo Kim <js1304@gmail.com> - 2015-08-07 10:10 +0200
Re: [PATCH] zram: fix possible race when checking idle_strm Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2015-08-07 11:20 +0200
Re: [PATCH] zram: fix possible race when checking idle_strm Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2015-08-07 11:40 +0200
Re: [PATCH] zram: fix possible race when checking idle_strm Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2015-08-07 11:20 +0200
Re: [PATCH] zram: fix possible race when checking idle_strm Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2015-08-07 12:00 +0200
Re: [PATCH] zram: fix possible race when checking idle_strm Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2015-08-10 02:30 +0200
Re: [PATCH] zram: fix possible race when checking idle_strm Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2015-08-10 04:20 +0200
Re: [PATCH] zram: fix possible race when checking idle_strm Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2015-08-11 10:30 +0200
Re: [PATCH] zram: fix possible race when checking idle_strm Minchan Kim <minchan@kernel.org> - 2015-08-11 01:30 +0200
Re: [PATCH] zram: fix possible race when checking idle_strm Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2015-08-11 10:30 +0200
Re: [PATCH] zram: fix possible race when checking idle_strm Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2015-08-11 10:30 +0200
Re: [PATCH] zram: fix possible race when checking idle_strm Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2015-08-07 11:40 +0200
Re: [PATCH] zram: fix possible race when checking idle_strm Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> - 2015-08-07 12:20 +0200
Re: [PATCH] zram: fix possible race when checking idle_strm Minchan Kim <minchan@kernel.org> - 2015-08-07 16:50 +0200
Re: [PATCH] zram: fix possible race when checking idle_strm Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2015-08-10 02:30 +0200
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