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: Mon, 11 Jun 2007 20:51:39 -0700 From: William Lee Irwin III <wli@...omorphy.com> To: Adam Litke <agl@...ibm.com> Cc: dean gaudet <dean@...tic.org>, "Eric W. Biederman" <ebiederm@...ssion.com>, linux-kernel@...r.kernel.org, ak@...e.de, clameter@....com Subject: Re: [shm][hugetlb] Fix get_policy for stacked shared memory files On Mon, Jun 11, 2007 at 04:34:54PM -0500, Adam Litke wrote: > Here's another breakage as a result of shared memory stacked files :( > The NUMA policy for a VMA is determined by checking the following (in > the order given): > 1) vma->vm_ops->get_policy() (if defined) > 2) vma->vm_policy (if defined) > 3) task->mempolicy (if defined) > 4) Fall back to default_policy > By switching to stacked files for shared memory, get_policy() is now > always set to shm_get_policy which is a wrapper function. This > causes us to stop at step 1, which yields NULL for hugetlb instead of > task->mempolicy which was the previous (and correct) result. > This patch modifies the shm_get_policy() wrapper to maintain steps 1-3 for the > wrapped vm_ops. Andi and Christoph, does this look right to you? > Signed-off-by: Adam Litke <agl@...ibm.com> Thanks for fielding this. The fix is certainly clear enough. Acked-by: William Irwin <bill.irwin@...cle.com> -- wli - 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