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xen: use vma_lookup() in privcmd_ioctl_mmap()
authorLiam R. Howlett <Liam.Howlett@Oracle.com>
Thu, 14 Apr 2022 06:07:15 +0000 (23:07 -0700)
committerLiam R. Howlett <Liam.Howlett@oracle.com>
Tue, 26 Apr 2022 14:36:35 +0000 (10:36 -0400)
commit8c986b6898c2d925e8a4849286dd42a0f466db81
tree95df9fbb559a6cf56aa88b8df843e41a22f9ab61tree
parent70e3b01202e1fead156638d6eddd49e7b210fa72commit | diff
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.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
drivers/xen/privcmd.c diff | blob | history
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