linux-sg2042/drivers/xen
Stefano Stabellini 45ddce214a xen/pvcalls: implement sendmsg
Send data to an active socket by copying data to the "out" ring. Take
the active socket out_mutex so that only one function can access the
ring at any given time.

If not enough room is available on the ring, rather than returning
immediately or sleep-waiting, spin for up to 5000 cycles. This small
optimization turns out to improve performance significantly.

Signed-off-by: Stefano Stabellini <stefano@aporeto.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
CC: boris.ostrovsky@oracle.com
CC: jgross@suse.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2017-10-31 09:05:53 -04:00
..
events xen: fixes and features for 4.14 2017-09-07 10:24:21 -07:00
xen-pciback xen-pciback: relax BAR sizing write value check 2017-09-28 08:26:25 -04:00
xenbus xen: don't compile pv-specific parts if XEN_PV isn't configured 2017-09-18 09:13:23 -04:00
xenfs xen: Drop un-informative message during boot 2017-07-27 19:55:34 +02:00
Kconfig xen: introduce a Kconfig option to enable the pvcalls backend 2017-08-31 09:45:55 -04:00
Makefile xen: fixes and features for 4.14 2017-09-07 10:24:21 -07:00
acpi.c xen: rename dom0_op to platform_op 2015-12-21 14:40:55 +00:00
arm-device.c Xen: ARM: Zero reserved fields of xatp before making hypervisor call 2017-01-03 10:06:13 -08:00
balloon.c xen: Don't try to call xen_alloc_p2m_entry() on autotranslating guests 2017-08-31 09:45:55 -04:00
biomerge.c xen: fix bio vec merging 2017-08-15 10:32:49 -04:00
cpu_hotplug.c xen: modify xenstore watch event interface 2017-02-09 11:26:49 -05:00
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: Implement EFI reset_system callback 2017-05-02 12:06:50 +02:00
evtchn.c xen-evtchn: Bind dyn evtchn:qemu-dm interrupt to next online VCPU 2017-06-13 15:30:27 +02:00
fallback.c
features.c xen: audit usages of module.h ; remove unnecessary instances 2016-03-21 15:13:32 +00:00
gntalloc.c mm: treewide: remove GFP_TEMPORARY allocation flag 2017-09-13 18:53:16 -07:00
gntdev.c xen/gntdev: avoid out of bounds access in case of partial gntdev_mmap() 2017-10-25 12:48:13 -04:00
grant-table.c xen/grant-table: log the lack of grants 2017-07-23 08:09:43 +02:00
manage.c xen: features and fixes for 4.13-rc1 2017-07-06 19:11:24 -07:00
mcelog.c x86/MCE, xen/mcelog: Make /dev/mcelog registration messages more precise 2017-06-20 23:25:19 +02:00
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 xen-platform: constify pci_device_id. 2017-08-31 09:45:55 -04:00
preempt.c xen/preempt: use need_resched() instead of should_resched() 2015-08-20 12:24:14 +01:00
privcmd.c xen/privcmd: Support correctly 64KB page granularity when mapping memory 2017-06-07 11:23:14 +02:00
privcmd.h
pvcalls-back.c xen/pvcalls: use WARN_ON(1) instead of __WARN() 2017-08-31 09:45:55 -04:00
pvcalls-front.c xen/pvcalls: implement sendmsg 2017-10-31 09:05:53 -04:00
pvcalls-front.h xen/pvcalls: implement sendmsg 2017-10-31 09:05:53 -04:00
swiotlb-xen.c xen-swiotlb: remove xen_swiotlb_set_dma_mask 2017-06-28 06:54:50 -07:00
sys-hypervisor.c xen: add sysfs node for hypervisor build id 2017-06-15 08:50:37 +02:00
time.c xen: add static initialization of steal_clock op to xen_time_ops 2016-07-26 14:07:06 +01:00
tmem.c fs: switch ->s_uuid to uuid_t 2017-06-05 16:59:12 +02:00
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/acpi: upload PM state from init-domain to Xen 2017-03-23 12:00:02 -04:00
xen-balloon.c xen: fix booting ballooned down hvm guest 2017-10-26 08:11:44 -04:00
xen-scsiback.c xen/scsiback: Make TMF processing slightly faster 2017-07-06 22:58:03 -07:00
xen-selfballoon.c xen: selfballoon: remove unnecessary static in frontswap_selfshrink() 2017-07-27 19:55:41 +02:00
xen-stub.c
xlate_mmu.c Xen: xlate: Use page_to_xen_pfn instead of page_to_pfn 2016-07-06 10:34:42 +01:00