Messages in this thread | | | Date | Thu, 27 May 2010 19:03:11 +0200 | From | Tejun Heo <> | Subject | Re: [PATCH] fs: run emergency remount on dedicated workqueue |
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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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