From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Molnar Subject: Re: nfs client lockdep warning Date: Mon, 12 Jan 2009 13:10:39 +0100 Message-ID: <20090112121039.GA27332@elte.hu> References: <20090108203658.GE19312@fieldses.org> <1231447707.7179.10.camel@heimdal.trondhjem.org> <20090108212056.GF19312@fieldses.org> <20090109043315.GA12139@gondor.apana.org.au> <1231480697.11687.522.camel@twins> <20090109062333.GB13304@gondor.apana.org.au> <1231483868.11687.523.camel@twins> <20090109202939.GA5466@fieldses.org> <1231761731.4371.7.camel@laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: "J. Bruce Fields" , Herbert Xu , netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Trond Myklebust , Nick Piggin To: Peter Zijlstra Return-path: Content-Disposition: inline In-Reply-To: <1231761731.4371.7.camel@laptop> Sender: linux-nfs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: netdev.vger.kernel.org * Peter Zijlstra wrote: > Subject: lockdep,mm: fix might_fault() annotation > > Some code (nfs/sunrpc) uses socket ops on kernel memory while holding > the mmap_sem, this is safe because kernel memory doesn't get paged out, > therefore we'll never actually fault, and the might_fault() annotations > will generate false positives. > > Signed-off-by: Peter Zijlstra applied to tip/core/urgent, thanks guys! I also added a: Reported-by: "J. Bruce Fields" line as we always want to preserve the chain of bug reports and attribute them. Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html