linux/drivers/xen
Jeremy Fitzhardinge d8e0420603 xen: define BIOVEC_PHYS_MERGEABLE()
Impact: allow Xen control of bio merging

When running in Xen domain with device access, we need to make sure
the block subsystem doesn't merge requests across pages which aren't
machine physically contiguous.  To do this, we define our own
BIOVEC_PHYS_MERGEABLE.  When CONFIG_XEN isn't enabled, or we're not
running in a Xen domain, this has identical behaviour to the normal
implementation.  When running under Xen, we also make sure the
underlying machine pages are the same or adjacent.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2010-10-18 10:40:28 -04:00
..
xenbus Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block 2010-08-10 15:22:42 -07:00
xenfs Merge branch 'xen/xenbus' into upstream/xen 2010-08-04 14:49:24 -07:00
balloon.c xen: Rename the balloon lock 2010-06-07 14:34:07 -04:00
biomerge.c xen: define BIOVEC_PHYS_MERGEABLE() 2010-10-18 10:40:28 -04:00
cpu_hotplug.c Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-12-11 12:18:16 -08:00
events.c x86: xen: Sanitise sparse_irq handling 2010-10-12 16:53:44 +02:00
evtchn.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
features.c xen: clean up asm/xen/hypervisor.h 2008-12-16 21:50:31 +01:00
grant-table.c xen: Xen PCI platform device driver. 2010-07-22 16:46:09 -07:00
Kconfig Merge branch 'stable/xen-swiotlb-0.8.6' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen 2010-08-12 09:09:41 -07:00
Makefile xen: define BIOVEC_PHYS_MERGEABLE() 2010-10-18 10:40:28 -04:00
manage.c Input: sysrq - drop tty argument form handle_sysrq() 2010-08-21 00:34:45 -07:00
platform-pci.c x86: Unplug emulated disks and nics. 2010-07-26 23:13:25 -07:00
swiotlb-xen.c swiotlb-xen: SWIOTLB library for Xen PV guest with PCI passthrough. 2010-07-27 11:51:00 -04:00
sys-hypervisor.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
xencomm.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00