X-Git-Url: https://git.ralfj.de/web.git/blobdiff_plain/006798d9670426c94efe365f1bfe88f5e7362908..72edf3525cf401e2c2297b058e320b655072bec3:/ralf/_posts/2018-11-16-stacked-borrows-implementation.md

diff --git a/ralf/_posts/2018-11-16-stacked-borrows-implementation.md b/ralf/_posts/2018-11-16-stacked-borrows-implementation.md
index c1c0274..df60719 100644
--- a/ralf/_posts/2018-11-16-stacked-borrows-implementation.md
+++ b/ralf/_posts/2018-11-16-stacked-borrows-implementation.md
@@ -375,8 +375,9 @@ perform the following operations on all locations affected by the access:
 
 1. If the location is frozen and this is a read access, nothing happens (even
    if the tag is `Uniq`).
-2. Unfreeze the location (set `frozen_since` to `None`).  Either the location is
-   already unfrozen, or this is a write.
+2. Otherwise, if this is a write access, unfreeze the location (set
+   `frozen_since` to `None`).  (If this is a read access and we come here, the
+   location is already unfrozen.)
 3. Pop the stack until the top item matches the tag of the pointer.
     - A `Uniq` item matches a `Uniq` tag with the same ID.
     - A `Shr` item matches any `Shr` tag (with or without timestamp).