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DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1692972081; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Q7GJNVQ0Y96opNfJhfWJzC+SabxuYOtwTQfKCmbWXKc=; b=j54ewDh2CRDqfk/+h1q/85e0wp1lISfhgPRb5rHWHTlFySJ45nMdNr3rimnyqzcUlx54Dm 1Iv+GJ+fa2J/Cn+NCS092MkLu4BW3Xiql1+sxKLKb2TiHKwHVsneMm/7FSrPTTHc2KwWos w1EYET3XCov0zpVmPbiOAtQWe7vzjrk= From: Hao Xu To: io-uring@vger.kernel.org, Jens Axboe Cc: Dominique Martinet , Pavel Begunkov , Christian Brauner , Alexander Viro , Stefan Roesch , Clay Harris , Dave Chinner , "Darrick J . Wong" , linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-cachefs@redhat.com, ecryptfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-unionfs@vger.kernel.org, bpf@vger.kernel.org, netdev@vger.kernel.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-btrfs@vger.kernel.org, codalist@coda.cs.cmu.edu, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, linux-mm@kvack.org, linux-nilfs@vger.kernel.org, devel@lists.orangefs.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-mtd@lists.infradead.org, Wanpeng Li Subject: [PATCH 14/29] xfs: support nowait for xfs_log_reserve() Date: Fri, 25 Aug 2023 21:54:16 +0800 Message-Id: <20230825135431.1317785-15-hao.xu@linux.dev> In-Reply-To: <20230825135431.1317785-1-hao.xu@linux.dev> References: <20230825135431.1317785-1-hao.xu@linux.dev> MIME-Version: 1.0 X-Migadu-Flow: FLOW_OUT X-Rspamd-Queue-Id: C5797160042 X-Rspam-User: X-Rspamd-Server: rspam02 X-Stat-Signature: j37xhmcqqrwrupzzo35113pgimkibxxb X-HE-Tag: 1692972082-315764 X-HE-Meta: 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 LYX7JhIN 9GFTC++mW8OgEMvRR5Vr0wGJwnKlWG9WZRSGa6av4nixQ8tkpYSlNeQsts56yzO6BrGfGhdoq+76ZBjskOMIQI8CA67QlVAkNRk5J+z2Pm3sDsANrjPCwxpCmiSwY87bEDpGxuAMTeAhqKprZIbIT0OlKMrVJT/0Z2o+53PyOucxO5TYAKILLde2DNCEZY+s1YHc0zgkpKEffAU5HusFBNj3Z5qZAEgJDsNrMqouxMsQVrYujjeLVRmfZjQ== 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: From: Hao Xu Support nowait logic for xfs_log_reserve(), including add a nowait boolean parameter and error out -EAGAIN for ticket allocation. Signed-off-by: Hao Xu --- fs/xfs/xfs_log.c | 18 +++++++++++++----- fs/xfs/xfs_log.h | 5 +++-- fs/xfs/xfs_log_cil.c | 2 +- fs/xfs/xfs_log_priv.h | 2 +- fs/xfs/xfs_trans.c | 5 +++-- 5 files changed, 21 insertions(+), 11 deletions(-) diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 79004d193e54..90fbb1c0eca2 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -462,7 +462,8 @@ xfs_log_reserve( int unit_bytes, int cnt, struct xlog_ticket **ticp, - bool permanent) + bool permanent, + bool nowait) { struct xlog *log = mp->m_log; struct xlog_ticket *tic; @@ -475,7 +476,9 @@ xfs_log_reserve( XFS_STATS_INC(mp, xs_try_logspace); ASSERT(*ticp == NULL); - tic = xlog_ticket_alloc(log, unit_bytes, cnt, permanent); + tic = xlog_ticket_alloc(log, unit_bytes, cnt, permanent, nowait); + if (!tic) + return -EAGAIN; *ticp = tic; xlog_grant_push_ail(log, tic->t_cnt ? tic->t_unit_res * tic->t_cnt @@ -974,7 +977,7 @@ xlog_unmount_write( struct xlog_ticket *tic = NULL; int error; - error = xfs_log_reserve(mp, 600, 1, &tic, 0); + error = xfs_log_reserve(mp, 600, 1, &tic, 0, false); if (error) goto out_err; @@ -3527,12 +3530,17 @@ xlog_ticket_alloc( struct xlog *log, int unit_bytes, int cnt, - bool permanent) + bool permanent, + bool nowait) { struct xlog_ticket *tic; int unit_res; - tic = kmem_cache_zalloc(xfs_log_ticket_cache, GFP_NOFS | __GFP_NOFAIL); + gfp_t gfp_flags = GFP_NOFS | + (nowait ? 0 : __GFP_NOFAIL); + tic = kmem_cache_zalloc(xfs_log_ticket_cache, gfp_flags); + if (!tic) + return NULL; unit_res = xlog_calc_unit_res(log, unit_bytes, &tic->t_iclog_hdrs); diff --git a/fs/xfs/xfs_log.h b/fs/xfs/xfs_log.h index 2728886c2963..ba515df443c3 100644 --- a/fs/xfs/xfs_log.h +++ b/fs/xfs/xfs_log.h @@ -139,8 +139,9 @@ void xfs_log_mount_cancel(struct xfs_mount *); xfs_lsn_t xlog_assign_tail_lsn(struct xfs_mount *mp); xfs_lsn_t xlog_assign_tail_lsn_locked(struct xfs_mount *mp); void xfs_log_space_wake(struct xfs_mount *mp); -int xfs_log_reserve(struct xfs_mount *mp, int length, int count, - struct xlog_ticket **ticket, bool permanent); +int xfs_log_reserve(struct xfs_mount *mp, int length, + int count, struct xlog_ticket **ticket, + bool permanent, bool nowait); int xfs_log_regrant(struct xfs_mount *mp, struct xlog_ticket *tic); void xfs_log_unmount(struct xfs_mount *mp); bool xfs_log_writable(struct xfs_mount *mp); diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c index eccbfb99e894..f17c1799b3c4 100644 --- a/fs/xfs/xfs_log_cil.c +++ b/fs/xfs/xfs_log_cil.c @@ -37,7 +37,7 @@ xlog_cil_ticket_alloc( { struct xlog_ticket *tic; - tic = xlog_ticket_alloc(log, 0, 1, 0); + tic = xlog_ticket_alloc(log, 0, 1, 0, false); /* * set the current reservation to zero so we know to steal the basic diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h index 1bd2963e8fbd..41edaa0ae869 100644 --- a/fs/xfs/xfs_log_priv.h +++ b/fs/xfs/xfs_log_priv.h @@ -503,7 +503,7 @@ extern __le32 xlog_cksum(struct xlog *log, struct xlog_rec_header *rhead, extern struct kmem_cache *xfs_log_ticket_cache; struct xlog_ticket *xlog_ticket_alloc(struct xlog *log, int unit_bytes, - int count, bool permanent); + int count, bool permanent, bool nowait); void xlog_print_tic_res(struct xfs_mount *mp, struct xlog_ticket *ticket); void xlog_print_trans(struct xfs_trans *); diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c index dbec685f4f4a..7988b4c7f36e 100644 --- a/fs/xfs/xfs_trans.c +++ b/fs/xfs/xfs_trans.c @@ -155,6 +155,7 @@ xfs_trans_reserve( struct xfs_mount *mp = tp->t_mountp; int error = 0; bool rsvd = (tp->t_flags & XFS_TRANS_RESERVE) != 0; + bool nowait = tp->t_flags & XFS_TRANS_NOWAIT; /* * Attempt to reserve the needed disk blocks by decrementing @@ -192,8 +193,8 @@ xfs_trans_reserve( error = xfs_log_regrant(mp, tp->t_ticket); } else { error = xfs_log_reserve(mp, resp->tr_logres, - resp->tr_logcount, - &tp->t_ticket, permanent); + resp->tr_logcount, &tp->t_ticket, + permanent, nowait); } if (error)