lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 20 Feb 2009 10:27:42 +0900 From: Tejun Heo <tj@...nel.org> To: Nick Piggin <nickpiggin@...oo.com.au> CC: rusty@...tcorp.com.au, tglx@...utronix.de, x86@...nel.org, linux-kernel@...r.kernel.org, hpa@...or.com, jeremy@...p.org, cpw@....com, mingo@...e.hu Subject: Re: [PATCH 08/10] vmalloc: add un/map_kernel_range_noflush() Nick Piggin wrote: > On Wednesday 18 February 2009 23:04:34 Tejun Heo wrote: >> Impact: two more public map/unmap functions >> >> Implement map_kernel_range_noflush() and unmap_kernel_range_noflush(). >> These functions respectively map and unmap address range in kernel VM >> area but doesn't do any vcache or tlb flushing. These will be used by >> new percpu allocator. > > Hmm... I have no real issues with this, although the caller is going > to have to be very careful not to introduce bugs (which I'm sure you > were ;)). > > Maybe can you add comments specifying the minimum of which flushes > are required and when, to scare people away from using them? Yeap, will add comments. Thanks. -- tejun -- 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/
Powered by blists - more mailing lists