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linux/drivers/xen
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David Vrabel 36ae220aa6 xen/gntdev: reduce copy batch size to 16 
IOCTL_GNTDEV_GRANT_COPY batches copy operations to reduce the number
of hypercalls.  The stack is used to avoid a memory allocation in a
hot path. However, a batch size of 24 requires more than 1024 bytes of
stack which in some configurations causes a compiler warning.

    xen/gntdev.c: In function ‘gntdev_ioctl_grant_copy’:
    xen/gntdev.c:949:1: warning: the frame size of 1248 bytes is
    larger than 1024 bytes [-Wframe-larger-than=]

This is a harmless warning as there is still plenty of stack spare,
but people keep trying to "fix" it.  Reduce the batch size to 16 to
reduce stack usage to less than 1024 bytes.  This should have minimal
impact on performance.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2016-05-24 12:58:17 +01:00
..
events xen/events: Mask a moving irq 2016-04-04 11:18:00 +01:00
xen-pciback xen: features and fixes for 4.6-rc0 2016-03-22 12:55:17 -07:00
xenbus xen: features and fixes for 4.6-rc0 2016-03-22 12:55:17 -07:00
xenfs xen: audit usages of module.h ; remove unnecessary instances 2016-03-21 15:13:32 +00:00
acpi.c xen: rename dom0_op to platform_op 2015-12-21 14:40:55 +00:00
balloon.c xen: features and fixes for 4.6-rc0 2016-03-22 12:55:17 -07:00
biomerge.c xen/biomerge: Don't allow biovec's to be merged when Linux is not using 4KB pages 2015-10-23 14:20:36 +01:00
cpu_hotplug.c xen, cpu_hotplug: call device_offline instead of cpu_down 2015-10-23 14:20:48 +01:00
dbgp.c xen: Use dev_is_pci() to check whether it is pci device 2014-01-07 09:53:33 -05:00
efi.c xen: rename dom0_op to platform_op 2015-12-21 14:40:55 +00:00
evtchn.c xen/evtchn: dynamically grow pending event channel ring 2015-11-26 18:49:54 +00:00
fallback.c xen-pciback: notify hypervisor about devices intended to be assigned to guests 2013-03-22 10:20:55 -04:00
features.c xen: audit usages of module.h ; remove unnecessary instances 2016-03-21 15:13:32 +00:00
gntalloc.c Merge branch 'akpm' (patches from Andrew) 2015-09-10 18:19:42 -07:00
gntdev.c xen/gntdev: reduce copy batch size to 16 2016-05-24 12:58:17 +01:00
grant-table.c xen: audit usages of module.h ; remove unnecessary instances 2016-03-21 15:13:32 +00:00
Kconfig xen_balloon: support memory auto onlining policy 2016-03-15 16:55:16 -07:00
Makefile xen: move xen_setup_runstate_info and get_runstate_snapshot to drivers/xen/time.c 2015-12-21 14:40:52 +00:00
manage.c xen: Use correctly the Xen memory terminologies 2015-09-08 18:03:49 +01:00
mcelog.c xen/mce: fix up xen_late_init_mcelog() error handling 2015-03-16 14:49:15 +00:00
pci.c xen/pci: Try harder to get PXM information for Xen 2015-04-15 10:57:28 +01:00
pcpu.c xen: rename dom0_op to platform_op 2015-12-21 14:40:55 +00:00
platform-pci.c drivers/xen: make platform-pci.c explicitly non-modular 2016-03-21 15:14:04 +00:00
preempt.c xen/preempt: use need_resched() instead of should_resched() 2015-08-20 12:24:14 +01:00
privcmd.c xen/privcmd: Add support for Linux 64KB page granularity 2015-10-23 14:20:42 +01:00
privcmd.h xen: Add privcmd device driver 2011-12-16 13:29:31 -05:00
swiotlb-xen.c xen/swiotlb: Add support for 64KB page granularity 2015-10-23 14:20:43 +01:00
sys-hypervisor.c drivers/xen: make sys-hypervisor.c explicitly non-modular 2016-03-21 15:14:03 +00:00
time.c xen/time: use READ_ONCE 2015-12-21 14:41:00 +00:00
tmem.c cleancache: constify cleancache_ops structure 2016-01-27 09:09:57 -05:00
xen-acpi-cpuhotplug.c xen: rename dom0_op to platform_op 2015-12-21 14:40:55 +00:00
xen-acpi-memhotplug.c ACPICA: Resources: Provide common part for struct acpi_resource_address structures. 2015-01-26 16:09:56 +01:00
xen-acpi-pad.c xen: rename dom0_op to platform_op 2015-12-21 14:40:55 +00:00
xen-acpi-processor.c xen: rename dom0_op to platform_op 2015-12-21 14:40:55 +00:00
xen-balloon.c drivers/xen: make [xen-]ballon explicitly non-modular 2016-03-21 15:13:44 +00:00
xen-scsiback.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2016-03-22 12:41:14 -07:00
xen-selfballoon.c xen: audit usages of module.h ; remove unnecessary instances 2016-03-21 15:13:32 +00:00
xen-stub.c xen/acpi: remove redundant acpi/acpi_drivers.h include 2013-03-11 13:53:02 -04:00
xlate_mmu.c xen/privcmd: Add support for Linux 64KB page granularity 2015-10-23 14:20:42 +01:00