| # buf = VFS_PAGE_SIZE, cache_files[m] = mkfile(m3, md0, # links(m, cache_dirs), content), ((cache_files ⊕ cache_pcache) ⊕ cache_icache)[m] = mkfile(m0, md, m1, content0), afs-cons(cache_dirs, cache_files), afs-cons(cache_dirs, (cache_files ⊕ cache_pcache) ⊕ cache_icache), dcache-cons(cache_dcache, cache_dirs, cache_files), icache-cons(cache_icache, cache_dirs, cache_files), pcache-cons(cache_pcache, cache_dirs, cache_files), synced(cache_dirs, cache_icache, cache_pcache), synced(cache_files, cache_icache, cache_pcache), m ∈ cache_files ⊦ ∃ err0. ⌊err0⌋ ∧ ⟨err := err0; asynced0 := ?⟩ ( (cache_files ⊕ cache_pcache) ⊕ cache_icache = ( cache_files[m, mkfile(m3, md0, # links(m, cache_dirs), content[pageno, buf])] ⊕ cache_pcache[datakey(m, pageno), mkpentry(false, buf)]) ⊕ cache_icache ∧ ¬ asynced0 ∧ ESUCCESS = err), ((cache_files ⊕ cache_pcache) ⊕ cache_icache)[m, mkfile(m0, md, m1, content0[pageno, buf])] = (cache_files[m, mkfile(m3, md0, # links(m, cache_dirs), content[pageno, buf])] ⊕ cache_pcache[datakey(m, pageno), mkpentry(false, buf)]) ⊕ cache_icache |
# buf = VFS_PAGE_SIZE, ((cache_files ⊕ cache_pcache) ⊕ cache_icache)[m] = mkfile(m0, md, m1, content0), cache_files[m] = mkfile(m3, md0, # links(m, cache_dirs), content), ((cache_files ⊕ cache_pcache) ⊕ cache_icache)[m, mkfile(m0, md, m1, content0[pageno, buf])] ≠ (cache_files[m, mkfile(m3, md0, # links(m, cache_dirs), content[pageno, buf])] ⊕ cache_pcache[datakey(m, pageno), mkpentry(false, buf)]) ⊕ cache_icache, afs-cons(cache_dirs, (cache_files ⊕ cache_pcache) ⊕ cache_icache), afs-cons(cache_dirs, cache_files), dcache-cons(cache_dcache, cache_dirs, cache_files), icache-cons(cache_icache, cache_dirs, cache_files), pcache-cons(cache_pcache, cache_dirs, cache_files), synced(cache_files, cache_icache, cache_pcache), synced(cache_dirs, cache_icache, cache_pcache), m ∈ cache_files ⊦ ∃ err0. ⌊err0⌋ ∧ ⟨err := err0; asynced0 := ?⟩ ( (cache_files ⊕ cache_pcache) ⊕ cache_icache = ( cache_files[m, mkfile(m3, md0, # links(m, cache_dirs), content[pageno, buf])] ⊕ cache_pcache[datakey(m, pageno), mkpentry(false, buf)]) ⊕ cache_icache ∧ ¬ asynced0 ∧ ESUCCESS = err)