From: Zhang Yi <yi.z.zhang@linux.intel.com>
To: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-nvdimm@lists.01.org, pbonzini@redhat.com,
dan.j.williams@intel.com, jack@suse.cz, hch@lst.de,
yu.c.zhang@intel.com
Cc: linux-mm@kvack.org, yi.z.zhang@intel.com, rkrcmar@redhat.com
Subject: [PATCH V2 1/4] kvm: remove redundant reserved page check
Date: Wed, 11 Jul 2018 01:01:33 +0800 [thread overview]
Message-ID: <3266d45a10db6d22e3978eacbe2683d43aec3100.1531241281.git.yi.z.zhang@linux.intel.com> (raw)
In-Reply-To: <cover.1531241281.git.yi.z.zhang@linux.intel.com>
PageReserved() is already checked inside kvm_is_reserved_pfn(),
remove it from kvm_set_pfn_dirty().
Signed-off-by: Zhang Yi <yi.z.zhang@linux.intel.com>
Signed-off-by: Zhang Yu <yu.c.zhang@linux.intel.com>
---
virt/kvm/kvm_main.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index c7b2e92..afb2e6e 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1673,12 +1673,8 @@ EXPORT_SYMBOL_GPL(kvm_release_pfn_dirty);
void kvm_set_pfn_dirty(kvm_pfn_t pfn)
{
- if (!kvm_is_reserved_pfn(pfn)) {
- struct page *page = pfn_to_page(pfn);
-
- if (!PageReserved(page))
- SetPageDirty(page);
- }
+ if (!kvm_is_reserved_pfn(pfn))
+ SetPageDirty(pfn_to_page(pfn));
}
EXPORT_SYMBOL_GPL(kvm_set_pfn_dirty);
--
2.7.4
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next prev parent reply other threads:[~2018-07-10 8:23 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-10 17:01 [PATCH V2 0/4] Fix kvm misconceives NVDIMM pages as reserved mmio Zhang Yi
2018-07-10 17:01 ` Zhang Yi [this message]
2018-07-10 17:01 ` [PATCH V2 2/4] mm: introduce memory type MEMORY_DEVICE_DEV_DAX Zhang Yi
2018-08-07 9:11 ` Jan Kara
2018-08-08 9:22 ` Zhang,Yi
2018-07-10 17:03 ` [PATCH V2 3/4] mm: add a function to differentiate the pages is from DAX device memory Zhang Yi
2018-08-07 9:13 ` Jan Kara
[not found] ` <cover.1531241281.git.yi.z.zhang-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2018-07-10 17:03 ` Zhang Yi
2018-07-10 17:04 ` [PATCH V2 4/4] kvm: add a check if pfn is from NVDIMM pmem Zhang Yi
2018-07-13 14:29 ` [PATCH V2 0/4] Fix kvm misconceives NVDIMM pages as reserved mmio Zhang,Yi
2018-07-20 14:11 ` Zhang,Yi
2018-07-20 8:32 ` Paolo Bonzini
2018-07-20 16:24 ` Zhang,Yi
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