auto 1l=J4661h s_ub &=LyZof}W[lWa嚷~[Zpv![_$e`hMgv:C-&q&i.P DYH#V7+!K\?X񝹞3 ?_3^{ J~7lD:fT913seqfb %΀䖇y쪢iYkkkir3921'&—kmezxʢCo!Uؘd\ 'o,֯G{Com/n57PVLYK67?]R(~S.U|5UR _ESTTJj@wذwdp캃떳z刵3? un8'[n0I_4K.ʎS^f#K6mC2qpf1$3ж`٪Ywv ҿ,]Xrj\DT.XB!/XNg@G[\bN]E/k_j+rnVPWM:QorMBCE[~aۋ7Dٌw\+W|߾#JrzV~1!\Z墫^ )]OvϿ1XfVW\qC^Ƹ+b!毟_Dd'9}$#TfA] O)MG~ecj yjMqR%ڙI|#\d~νu%iiqaI93mg%.j> cBbr/"KJeg)Inb_m>\*mrp,TV(&[#i!:% C9?NژSq0;<.BQG_a㣣FNY+\._ǏOۆ&N*YCKQev;z"a|t_?L.U;Z>^ÇԻ*EWK nխ L/ֳ}W"l7ԛG[/jz!GEZ-9҇%r[u};}UꆔI賧e瓼$M;l;]NMʹ/Cm"} 7_ż@ZH"{4b.iC>,Zg8T"krexᝢ6sϓ ?E~8#gk<2nz=A>( o x#ބ7cނmx;ށw]x7ރ}(  Ʊe|wNX0&0؅.|')|w3,> "/+*u|ķm|}T܋}؋ Lgx?/KLc~7!X(e X8q Y!^9Y,_8 .BxoW!Z;8 #include #include #include #include struct mb_cache; /* Cache entry flags */ enum { MBE_REFERENCED_B = 0, MBE_REUSABLE_B }; struct mb_cache_entry { /* List of entries in cache - protected by cache->c_list_lock */ struct list_head e_list; /* * Hash table list - protected by hash chain bitlock. The entry is * guaranteed to be hashed while e_refcnt > 0. */ struct hlist_bl_node e_hash_list; /* * Entry refcount. Once it reaches zero, entry is unhashed and freed. * While refcount > 0, the entry is guaranteed to stay in the hash and * e.g. mb_cache_entry_try_delete() will fail. */ atomic_t e_refcnt; /* Key in hash - stable during lifetime of the entry */ u32 e_key; unsigned long e_flags; /* User provided value - stable during lifetime of the entry */ u64 e_value; }; struct mb_cache *mb_cache_create(int bucket_bits); void mb_cache_destroy(struct mb_cache *cache); int mb_cache_entry_create(struct mb_cache *cache, gfp_t mask, u32 key, u64 value, bool reusable); void __mb_cache_entry_free(struct mb_cache *cache, struct mb_cache_entry *entry); void mb_cache_entry_wait_unused(struct mb_cache_entry *entry); static inline void mb_cache_entry_put(struct mb_cache *cache, struct mb_cache_entry *entry) { unsigned int cnt = atomic_dec_return(&entry->e_refcnt); if (cnt > 0) { if (cnt <= 2) wake_up_var(&entry->e_refcnt); return; } __mb_cache_entry_free(cache, entry); } struct mb_cache_entry *mb_cache_entry_delete_or_get(struct mb_cache *cache, u32 key, u64 value); struct mb_cache_entry *mb_cache_entry_get(struct mb_cache *cache, u32 key, u64 value); struct mb_cache_entry