On Tue, Nov 16, 2010 at 11:37:39PM -0800, David Rientjes wrote: > If you _really_ need 1MB of physically contiguous memory, then you'll need > to find a way to do it in a reclaimable context. If we actually can > remove the dependency that gfs2, ntfs, and ceph have in the kernel.org > kernel, then this support may be pulled out from under you; the worst-case > scenario for Lustre is that you'll have to modify the callchains like I > suggested in my original email to pass the gfp mask all the way down to > the pte allocators if you can't find a way to do it under GFP_KERNEL. As Dave mentioned XFS also needs GFP_NOFS allocations in the low-level vmap machinery, which is shared with vmalloc. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>