]> www.infradead.org Git - users/jedix/linux-maple.git/commit
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)
committerakpm <akpm@linux-foundation.org>
Thu, 14 Apr 2022 06:07:15 +0000 (23:07 -0700)
commitcf06918ef78280db810aeea50a599a6d28262488
treead3fc911bd9c06b0e11535d45200331739e20a10
parentb1357c01ba2e71f3bb645a1dbd51a818f5f702ab
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/20220404143501.2016403-22-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
drivers/xen/privcmd.c