linux/drivers/xen
Liam R. Howlett 7ccf089b26 xen: use vma_lookup() in privcmd_ioctl_mmap()
vma_lookup() walks the VMA tree for a specific value, find_vma() will
search the tree after walking to a specific value.  It is more efficient
to only walk to the requested value since privcmd_ioctl_mmap() will exit
the loop if vm_start != msg->va.

Link: https://lkml.kernel.org/r/20220906194824.2110408-20-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Tested-by: Yu Zhao <yuzhao@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: SeongJae Park <sj@kernel.org>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-09-26 19:46:16 -07:00
..
events xen: branch for v6.0-rc1b 2022-08-14 09:28:54 -07:00
xen-pciback xen/pciback: Fix comment typo 2022-08-12 12:19:50 +02:00
xenbus xen: branch for v6.0-rc3 2022-08-27 15:38:00 -07:00
xenfs
acpi.c
arm-device.c
balloon.c xen/balloon: don't use PV mode extra memory for zone device allocations 2022-04-07 15:08:37 -05:00
biomerge.c
cpu_hotplug.c xen/cpuhotplug: Fix initial CPU offlining for PV(H) guests 2020-05-21 13:01:45 -05:00
dbgp.c
efi.c
evtchn.c xen/evtchn: use READ/WRITE_ONCE() for accessing ring indices 2021-02-23 10:07:52 -06:00
features.c x86/xen: Remove undefined behavior in setup_features() 2022-06-21 16:36:11 +02:00
gntalloc.c xen: switch gnttab_end_foreign_access() to take a struct page pointer 2022-05-27 11:05:29 +02:00
gntdev-common.h xen/gntdev: Avoid blocking in unmap_grant_pages() 2022-06-23 15:29:18 +02:00
gntdev-dmabuf.c xen: switch gnttab_end_foreign_access() to take a struct page pointer 2022-05-27 11:05:29 +02:00
gntdev-dmabuf.h
gntdev.c xen/gntdev: Ignore failure to unmap INVALID_GRANT_HANDLE 2022-07-11 11:39:45 +02:00
grant-dma-iommu.c xen/grant-dma-iommu: Introduce stub IOMMU driver 2022-06-06 16:07:30 +02:00
grant-dma-ops.c xen: don't require virtio with grants for non-PV guests 2022-08-01 07:43:03 +02:00
grant-table.c xen/grants: support allocating consecutive grants 2022-06-06 08:54:35 +02:00
Kconfig xen: don't require virtio with grants for non-PV guests 2022-08-01 07:43:03 +02:00
Makefile xen/grant-dma-iommu: Introduce stub IOMMU driver 2022-06-06 16:07:30 +02:00
manage.c xen/manage: Use orderly_reboot() to reboot 2022-08-01 07:42:22 +02:00
mcelog.c
mem-reservation.c x86/xen: remove 32-bit pv leftovers 2021-11-02 08:03:43 -05:00
pci.c xen/pci: Make use of the helper macro LIST_HEAD() 2022-02-10 11:10:23 +01:00
pcpu.c xen: Use DEVICE_ATTR_*() macro 2021-07-05 09:23:31 +02:00
platform-pci.c xen: Set platform PCI device INTX affinity to CPU0 2021-01-13 16:12:03 +01:00
privcmd-buf.c
privcmd.c xen: use vma_lookup() in privcmd_ioctl_mmap() 2022-09-26 19:46:16 -07:00
privcmd.h
pvcalls-back.c xen/pvcalls-back: Remove redundant 'flush_workqueue()' calls 2021-11-02 07:45:44 -05:00
pvcalls-front.c xen: switch gnttab_end_foreign_access() to take a struct page pointer 2022-05-27 11:05:29 +02:00
pvcalls-front.h
swiotlb-xen.c swiotlb-xen: fix DMA_ATTR_NO_KERNEL_MAPPING on arm 2022-05-11 19:48:32 +02:00
sys-hypervisor.c drivers/xen: use helper macro __ATTR_RW 2022-03-10 09:27:55 -06:00
time.c x86/paravirt: Switch time pvops functions to use static_call() 2021-03-11 16:17:52 +01:00
unpopulated-alloc.c xen/balloon: don't use PV mode extra memory for zone device allocations 2022-04-07 15:08:37 -05:00
xen-acpi-pad.c
xen-acpi-processor.c xen: Fix implicit type conversion 2021-11-02 07:45:44 -05:00
xen-balloon.c xen: Use DEVICE_ATTR_*() macro 2021-07-05 09:23:31 +02:00
xen-front-pgdir-shbuf.c xen: Fix spelling mistake 2022-08-01 07:42:42 +02:00
xen-scsiback.c xen: move from strlcpy with unused retval to strscpy 2022-08-25 13:38:07 +02:00
xlate_mmu.c xen: unexport __init-annotated xen_xlate_map_ballooned_pages() 2022-06-07 08:11:35 +02:00