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| From | Jeff Chua <jeff.chua.linux@gmail.com> |
| Newsgroups | linux.kernel |
| Subject | Re: how to check how much data left to sync to disk at umount? |
| Date | Fri, 18 Sep 2015 13:40:01 +0200 |
| Message-ID | <qa2bf-1mt-3@gated-at.bofh.it> (permalink) |
| References | <q5XjQ-4JR-11@gated-at.bofh.it> <q9wEq-5yg-5@gated-at.bofh.it> |
| X-Original-To | Dave Chinner <david@fromorbit.com> |
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On Thu, Sep 17, 2015 at 9:50 AM, Dave Chinner <david@fromorbit.com> wrote: > On Mon, Sep 07, 2015 at 01:29:33PM +0800, Jeff Chua wrote: >> When umount a slow device such as an SD card, the command will take a >> while to run depending on how much data is left to write to the >> device. Is there way to check how much data is remaining waiting to >> write to the device? > > $ grep "Dirty\|Writeback" /proc/meminfo > > And infer from that. It be a big challenge if the SD write is not the only disk activity! Jeff -- 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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Re: how to check how much data left to sync to disk at umount? Dave Chinner <david@fromorbit.com> - 2015-09-17 04:00 +0200 Re: how to check how much data left to sync to disk at umount? Jeff Chua <jeff.chua.linux@gmail.com> - 2015-09-18 13:40 +0200
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