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Date: Thu, 26 Apr 2007 10:21:43 -0700 From: "Miles Lane" <miles.lane@...il.com> To: "Tejun Heo" <htejun@...il.com> Cc: "Andrew Morton" <akpm@...l.org>, LKML <linux-kernel@...r.kernel.org>, greg@...ah.com Subject: Re: [PATCH] sysfs: use different lockdep subclass for s_active deactivation On 4/26/07, Tejun Heo <htejun@...il.com> wrote: > A sysfs node can delete other sysfs files when accessed. This results > in recursive s_active locking - read lock for file access, down lock > of the vicitim for deactivation. Tell lockdep that it's okay. > > Signed-off-by: Tejun Heo <htejun@...il.com> > --- > Miles, please test this patch. It should remove the lockdep warning. > Fixes for the other two problems will soon follow. > > Greg, Andrew, after all the fixes are verified, I'll merge the fixes > into the original patches and resend all the sysfs updates in better > shape. Sorry about all the trouble. Should I test this with 2.6.21-rc7-mm2? It doesn't apply cleanly. # patch -p1 -l --dry-run < tejun.patch patching file fs/sysfs/dir.c Hunk #1 succeeded at 31 with fuzz 1 (offset -29 lines). patching file fs/sysfs/sysfs.h Hunk #1 succeeded at 40 (offset -1 lines). Hunk #2 succeeded at 182 with fuzz 1 (offset -1 lines). - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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