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xen: remove a confusing comment on auto-translated guest I/O

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[ Upstream commit d826c9e61c ]

After removing the conditional return from xen_create_contiguous_region(),
the accompanying comment was left in place, but it now precedes an
unrelated conditional and confuses readers.

Fixes: 989513a735 ("xen: cleanup pvh leftovers from pv-only sources")
Signed-off-by: Petr Tesarik <petr.tesarik.ext@huawei.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20230802163151.1486-1-petrtesarik@huaweicloud.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Stable-dep-of: e93ec87286bd ("x86/xen: allow larger contiguous memory regions in PV guests")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Petr Tesarik
2023-08-02 18:31:51 +02:00
committed by Greg Kroah-Hartman
parent 099606a7b2
commit 7a32e55815
1 changed files with 0 additions and 6 deletions
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6
arch/x86/xen/mmu_pv.c
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@@ -2302,12 +2302,6 @@ int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
int success;
unsigned long vstart = (unsigned long)phys_to_virt(pstart);
/*
* Currently an auto-translated guest will not perform I/O, nor will
* it require PAE page directories below 4GB. Therefore any calls to
* this function are redundant and can be ignored.
*/
if (unlikely(order > MAX_CONTIG_ORDER))
return -ENOMEM;