[$] Keeping COWs in context (a.k.a. anonymous reverse mapping)
The kernel’s reverse-mapping machinery is charged with locating the
page-table entries that refer to a given page in memory. The reverse
mapping of anonymous pages is handled differently than for file-backed
pages. The kernel’s implementation of reverse mapping for anonymous pages
is, according to Lorenzo Stoakes in his proposal
for a memory-management-track session at the 2026 [Linux Storage,\
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