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...tion) and it > doesn't really matter that only these new notifiers can be called with > this type, it is still part of the mmu_notifier_range. > OK. > The comment already says it only applies to the mmu_range_notifier > scheme.. > >>> #define MMU_NOTIFIER_RANGE_BLOCKABLE (1 << 0) >>> @@ -222,6 +228,26 @@ struct mmu_notifier { >>> unsigned int users; >>> }; >>> >> >> That should also be moved down, next to the new structs. > > Which this? I was referring to MMU_NOTIFIER_RANGE_BLOCKABLE, above....

...en moved out, and will be posted separately. Also, the off-by-one in reserving the top of address space has been fixed. For the most part, these patches do nothing or very little. The patches should be self explanatory, but the overview is: Helper functions for later use: 2/8: Implement always-locked bit ops... 8/8: Put .note.* sections into a PT_NOTE segment in vmlinux Cleanups: 1/8: Remove locally-defined ldt structure in favour of standard type 3/8: Allow a kernel to not be in ring 0 5/8: Roll all the cpuid asm into one __cpuid call Hooks: 4/8: Replace sensitive instructions with ma...

...en moved out, and will be posted separately. Also, the off-by-one in reserving the top of address space has been fixed. For the most part, these patches do nothing or very little. The patches should be self explanatory, but the overview is: Helper functions for later use: 2/8: Implement always-locked bit ops... 8/8: Put .note.* sections into a PT_NOTE segment in vmlinux Cleanups: 1/8: Remove locally-defined ldt structure in favour of standard type 3/8: Allow a kernel to not be in ring 0 5/8: Roll all the cpuid asm into one __cpuid call Hooks: 4/8: Replace sensitive instructions with ma...

...607 insertions(+), 25 deletions(-) > > diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h > index 12bd603d318ce7..51b92ba013ddce 100644 > --- a/include/linux/mmu_notifier.h > +++ b/include/linux/mmu_notifier.h > @@ -6,10 +6,12 @@ > #include <linux/spinlock.h> > #include <linux/mm_types.h> > #include <linux/srcu.h> > +#include <linux/interval_tree.h> > > struct mmu_notifier_mm; > struct mmu_notifier; > struct mmu_notifier_range; > +struct mmu_range_notifier; Hi Jason, Nice design, I love the seq fo...

...e: > Nice design, I love the seq foundation! So far, I'm not able to spot anything > actually wrong with the implementation, sorry about that. Alas :( I feel there must be a bug in here still, but onwards! One of the main sad points was it didn't make sense to use the existing seqlock/seqcount primitives as they have both the wrong write concurrancy model and extra barriers that are not needed when it is always manipulated under a spinlock > 1. There is a rather severe naming overlap (not technically a naming conflict, > but still) with existing mmn work, which already h...

...ater on. I think this lot is ready for the rough-and-tumble world of the -mm tree. For the most part, these patches do nothing or very little. The patches should be self explanatory, but the overview is: Helper functions for later use: 1/13: Add apply_to_page_range()... 3/13: Implement always-locked bit ops... 13/13: Put .note.* sections into a PT_NOTE segment in vmlinux Cleanups: 2/13: Remove locally-defined ldt structure in favour of standard type 4/13: Allow a kernel to not be in ring 0 6/13: Roll all the cpuid asm into one __cpuid call 9/13: Remove the read hazard from the COW path...

...ater on. I think this lot is ready for the rough-and-tumble world of the -mm tree. For the most part, these patches do nothing or very little. The patches should be self explanatory, but the overview is: Helper functions for later use: 1/13: Add apply_to_page_range()... 3/13: Implement always-locked bit ops... 13/13: Put .note.* sections into a PT_NOTE segment in vmlinux Cleanups: 2/13: Remove locally-defined ldt structure in favour of standard type 4/13: Allow a kernel to not be in ring 0 6/13: Roll all the cpuid asm into one __cpuid call 9/13: Remove the read hazard from the COW path...

...ng) - mmu (page table, tlb, and cache handling) - memory reservations - time and timer - vcpu (init, up/down vcpu) - schedule (processor yield, shutdown, etc) - event channel (generalized virtual interrupt handling) - grant table (shared memory interface for high speed interdomain communication) - block device I/O - network device I/O - console device I/O - Xen feature map - Xen version info Thanks to those who provided early feedback to this patchset: Andi Kleen, Gerd Hoffmann, Jan Beulich, Rik van Riel, Stephen Tweedie, and the Xen team. And thanks to the Xen community: AMD, HP, IBM, Intel, Nov...

...ng) - mmu (page table, tlb, and cache handling) - memory reservations - time and timer - vcpu (init, up/down vcpu) - schedule (processor yield, shutdown, etc) - event channel (generalized virtual interrupt handling) - grant table (shared memory interface for high speed interdomain communication) - block device I/O - network device I/O - console device I/O - Xen feature map - Xen version info Thanks to those who provided early feedback to this patchset: Andi Kleen, Gerd Hoffmann, Jan Beulich, Rik van Riel, Stephen Tweedie, and the Xen team. And thanks to the Xen community: AMD, HP, IBM, Intel, Nov...