| 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
| ||
|
Message-Id: <200902192317.28696.nickpiggin@yahoo.com.au> Date: Thu, 19 Feb 2009 23:17:27 +1100 From: Nick Piggin <nickpiggin@...oo.com.au> To: Tejun Heo <tj@...nel.org> 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() 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? > > Signed-off-by: Tejun Heo <tj@...nel.org> > --- > include/linux/vmalloc.h | 3 ++ > mm/vmalloc.c | 58 > ++++++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 58 > insertions(+), 3 deletions(-) -- 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