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Tue, 11 May 2021 03:52:45 -0700 (PDT) Received: from localhost.localdomain ([139.177.225.240]) by smtp.gmail.com with ESMTPSA id n18sm13501952pgj.71.2021.05.11.03.52.36 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 11 May 2021 03:52:44 -0700 (PDT) From: Muchun Song To: willy@infradead.org, akpm@linux-foundation.org, hannes@cmpxchg.org, mhocko@kernel.org, vdavydov.dev@gmail.com, shakeelb@google.com, guro@fb.com, shy828301@gmail.com, alexs@kernel.org, richard.weiyang@gmail.com, david@fromorbit.com, trond.myklebust@hammerspace.com, anna.schumaker@netapp.com Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-nfs@vger.kernel.org, zhengqi.arch@bytedance.com, duanxiongchun@bytedance.com, fam.zheng@bytedance.com, Muchun Song Subject: [PATCH 12/17] xarray: replace kmem_cache_alloc with kmem_cache_alloc_lru Date: Tue, 11 May 2021 18:46:42 +0800 Message-Id: <20210511104647.604-13-songmuchun@bytedance.com> X-Mailer: git-send-email 2.21.0 (Apple Git-122) In-Reply-To: <20210511104647.604-1-songmuchun@bytedance.com> References: <20210511104647.604-1-songmuchun@bytedance.com> MIME-Version: 1.0 Authentication-Results: imf03.hostedemail.com; dkim=pass header.d=bytedance-com.20150623.gappssmtp.com header.s=20150623 header.b=VBuLofk9; dmarc=pass (policy=none) header.from=bytedance.com; spf=pass (imf03.hostedemail.com: domain of songmuchun@bytedance.com designates 209.85.210.179 as permitted sender) smtp.mailfrom=songmuchun@bytedance.com X-Stat-Signature: a83ikf6uejj3tcxp8ubt6b7ix8ttau6k X-Rspamd-Queue-Id: DEFC1C0007C8 X-Rspamd-Server: rspam02 Received-SPF: none (bytedance.com>: No applicable sender policy available) receiver=imf03; identity=mailfrom; envelope-from=""; helo=mail-pf1-f179.google.com; client-ip=209.85.210.179 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1620730357-381534 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: The workingset will add the xa_node to the shadow_nodes list. So the allocation of xa_node should be done by kmem_cache_alloc_lru(). The user of the xarray can xas_set_lru() to pass the list_lru. Signed-off-by: Muchun Song --- include/linux/xarray.h | 9 ++++++++- lib/xarray.c | 10 +++++----- 2 files changed, 13 insertions(+), 6 deletions(-) diff --git a/include/linux/xarray.h b/include/linux/xarray.h index a91e3d90df8a..31f3e5ef3c7b 100644 --- a/include/linux/xarray.h +++ b/include/linux/xarray.h @@ -1317,6 +1317,7 @@ struct xa_state { struct xa_node *xa_node; struct xa_node *xa_alloc; xa_update_node_t xa_update; + struct list_lru *xa_lru; }; =20 /* @@ -1336,7 +1337,8 @@ struct xa_state { .xa_pad =3D 0, \ .xa_node =3D XAS_RESTART, \ .xa_alloc =3D NULL, \ - .xa_update =3D NULL \ + .xa_update =3D NULL, \ + .xa_lru =3D NULL, \ } =20 /** @@ -1613,6 +1615,11 @@ static inline void xas_set_update(struct xa_state = *xas, xa_update_node_t update) xas->xa_update =3D update; } =20 +static inline void xas_set_lru(struct xa_state *xas, struct list_lru *lr= u) +{ + xas->xa_lru =3D lru; +} + /** * xas_next_entry() - Advance iterator to next present entry. * @xas: XArray operation state. diff --git a/lib/xarray.c b/lib/xarray.c index f5d8f54907b4..e9b818abc823 100644 --- a/lib/xarray.c +++ b/lib/xarray.c @@ -302,7 +302,7 @@ bool xas_nomem(struct xa_state *xas, gfp_t gfp) } if (xas->xa->xa_flags & XA_FLAGS_ACCOUNT) gfp |=3D __GFP_ACCOUNT; - xas->xa_alloc =3D kmem_cache_alloc(radix_tree_node_cachep, gfp); + xas->xa_alloc =3D kmem_cache_alloc_lru(radix_tree_node_cachep, xas->xa_= lru, gfp); if (!xas->xa_alloc) return false; xas->xa_alloc->parent =3D NULL; @@ -334,10 +334,10 @@ static bool __xas_nomem(struct xa_state *xas, gfp_t= gfp) gfp |=3D __GFP_ACCOUNT; if (gfpflags_allow_blocking(gfp)) { xas_unlock_type(xas, lock_type); - xas->xa_alloc =3D kmem_cache_alloc(radix_tree_node_cachep, gfp); + xas->xa_alloc =3D kmem_cache_alloc_lru(radix_tree_node_cachep, xas->xa= _lru, gfp); xas_lock_type(xas, lock_type); } else { - xas->xa_alloc =3D kmem_cache_alloc(radix_tree_node_cachep, gfp); + xas->xa_alloc =3D kmem_cache_alloc_lru(radix_tree_node_cachep, xas->xa= _lru, gfp); } if (!xas->xa_alloc) return false; @@ -371,7 +371,7 @@ static void *xas_alloc(struct xa_state *xas, unsigned= int shift) if (xas->xa->xa_flags & XA_FLAGS_ACCOUNT) gfp |=3D __GFP_ACCOUNT; =20 - node =3D kmem_cache_alloc(radix_tree_node_cachep, gfp); + node =3D kmem_cache_alloc_lru(radix_tree_node_cachep, xas->xa_lru, gfp= ); if (!node) { xas_set_err(xas, -ENOMEM); return NULL; @@ -1014,7 +1014,7 @@ void xas_split_alloc(struct xa_state *xas, void *en= try, unsigned int order, void *sibling =3D NULL; struct xa_node *node; =20 - node =3D kmem_cache_alloc(radix_tree_node_cachep, gfp); + node =3D kmem_cache_alloc_lru(radix_tree_node_cachep, xas->xa_lru, gfp= ); if (!node) goto nomem; node->array =3D xas->xa; --=20 2.11.0