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SubjectRe: [PATCH] fs: run emergency remount on dedicated workqueue
On 05/27/2010 04:59 PM, Américo Wang wrote:
> On Thu, May 27, 2010 at 11:57:23AM +0200, Tejun Heo wrote:
>> Commit fa4b9074cd8428958c2adf9dc0c831f46e27c193 made s_umount depend
>> on keventd; however, emergency remount schedules works to keventd
>> which grabs s_umount creating a circular dependency. Run emergency
>> remount on a separate workqueue to break it.
> I have a stupid question, why using workqueue instead of
> calling do_remount_sb() directly in emergency_remount()?
> Avoid blocking emergency_remount()?

Umm... because it's called from interrupt handler? Right?

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