Re: [Xen-devel] Re: [PATCH 0/6] xen: don't call vmalloc_sync_all

On 09/21/2011 03:42 AM, Stefano Stabellini wrote:
> On Thu, 15 Sep 2011, Jeremy Fitzhardinge wrote:
>> This series is relying on regular ram mappings are already synced to all
>> tasks, but I'm not sure that's necessarily guaranteed (for example, if
>> you hotplug new memory into the domain, the new pages won't be mapped
>> into every mm unless they're synced).
> the series is using GFP_KERNEL, so this problem shouldn't occur, right?

What properties do you think GFP_KERNEL guarantees?

    J

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[Xen-devel] [PATCH 0/6] xen: don't call vmalloc_sync_all() when mapping foreign pages, David Vrabel [Xen-devel] [PATCH 2/6] block: xen-blkback: use API provided by xenbus module to map rings, David Vrabel [Xen-devel] [PATCH 1/6] xen: add functions for mapping foreign pages over pages, David Vrabel [Xen-devel] [PATCH 3/6] net: xen-netback: use API provided by xenbus module to map rings, David Vrabel [Xen-devel] [PATCH 4/6] xen: xen-pciback: use xenbus_map_ring_page() to map rings, David Vrabel [Xen-devel] [PATCH 5/6] xen: xenbus: remove xenbus_map_ring_valloc() and xenbus_map_ring_vfree(), David Vrabel [Xen-devel] [PATCH 6/6] mm: remove vmalloc_sync_all() from alloc_vm_area(), David Vrabel [Xen-devel] Re: [PATCH 0/6] xen: don't call vmalloc_sync_all() when mapping foreign pages, Jeremy Fitzhardinge [Xen-devel] Re: [PATCH 0/6] xen: don't call vmalloc_sync_all() when mapping foreign pages, Stefano Stabellini Re: [Xen-devel] Re: [PATCH 0/6] xen: don't call vmalloc_sync_all() when mapping foreign pages, Jeremy Fitzhardinge <= Re: [Xen-devel] Re: [PATCH 0/6] xen: don't call vmalloc_sync_all() when mapping foreign pages, Stefano Stabellini Re: [Xen-devel] Re: [PATCH 0/6] xen: don't call vmalloc_sync_all() when mapping foreign pages, Jeremy Fitzhardinge Re: [Xen-devel] Re: [PATCH 0/6] xen: don't call vmalloc_sync_all() when mapping foreign pages, Stefano Stabellini Re: [Xen-devel] Re: [PATCH 0/6] xen: don't call vmalloc_sync_all() when mapping foreign pages, David Vrabel Re: [Xen-devel] Re: [PATCH 0/6] xen: don't call vmalloc_sync_all() when mapping foreign pages, David Vrabel Re: [Xen-devel] Re: [PATCH 0/6] xen: don't call vmalloc_sync_all() when mapping foreign pages, David Vrabel

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Re: [Xen-devel] Re: [PATCH 0/6] xen: don't call vmalloc_sync_all() when