From dffc8ec9fc25283b229e6bc7f627d4bb909d0e6c Mon Sep 17 00:00:00 2001
From: 4lDO2 <4lDO2@protonmail.com>
Date: Tue, 27 Jun 2023 19:55:46 +0200
Subject: [PATCH] Do not expect PageInfo for PhysMap grants.
---
src/context/memory.rs | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/src/context/memory.rs b/src/context/memory.rs
index e7d5a0ba..ffc61415 100644
--- a/src/context/memory.rs
+++ b/src/context/memory.rs
@@ -777,11 +777,18 @@ impl Grant {
};
let frame = Frame::containing_address(phys);
- let is_cow = !matches!(self.info.provider, Provider::External { .. });
+ let is_cow_opt = match self.info.provider {
+ Provider::Allocated => Some(true),
+ Provider::External { .. } => Some(false),
+ Provider::PhysBorrowed { .. } => None,
+ Provider::Fmap { .. } => todo!(),
+ };
- get_page_info(frame)
- .expect("allocated frame did not have an associated PageInfo")
- .remove_ref(is_cow);
+ if let Some(is_cow) = is_cow_opt {
+ get_page_info(frame)
+ .expect("allocated frame did not have an associated PageInfo")
+ .remove_ref(is_cow);
+ }
flusher.consume(flush);
--
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