From patchwork Thu Oct 31 23:15:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Darrick J. Wong" X-Patchwork-Id: 13858450 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A48091C2DB8 for ; Thu, 31 Oct 2024 23:15:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730416513; cv=none; b=LKO4FN2TWIHNYad0VYY1qCOjDngZwc1Qfry247UPUSL9M47PPUyXE0YGDuIhmjLUQhcOVLHEEMdsKpZB2R8yFgolSOtkGoiPAtmYN+P34pklle22/EDXZ/FEu9io7F1l4sp94+CsCVJgQwSPVfW+xHDf8KvxnMWRHCoRoJvPpvQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730416513; c=relaxed/simple; bh=AMqM1j5GaO/aiseja1ns/LzFZ/uFcNUULdpBuFYEq/c=; h=Date:Subject:From:To:Cc:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=nVanDHrc8ktGJV37nzPFeJW4hl2xi3qxvHSdgnY0QFyUEAAUSp2a1vl0ak5uFYC1ZYfEhu3d8PbnwX5okXGUq50N9u41AdEHIusr28updSrpCVqOkUsD1JOPGx+NrbpenxpPY4WEnLXCi0TGJO8+4Efs6sBOPtqzTzFeE10B1nc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=sAcXvQHd; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="sAcXvQHd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 24F02C4CEC3; Thu, 31 Oct 2024 23:15:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1730416513; bh=AMqM1j5GaO/aiseja1ns/LzFZ/uFcNUULdpBuFYEq/c=; h=Date:Subject:From:To:Cc:In-Reply-To:References:From; b=sAcXvQHdH8ZlsojvBhshuqHNGk9JCogVooG//hwWnp+Qm88L8habYvZJbvXHnZbdI E8xPSmUMPhK+fRxmm04jP6Xb3LINFGLsIyvpC+0dJceLGKLjfJLLP+eA2UVHHDMJBM 5VaHbIcD5sE/n2mRfv8hnafErjAs5Jb1FT+TvX8nfxg8uf9IfIi6d2xfkQ5sleNmym uTB+f88ER+E9LYrY7ObfGSVhlFb4xgxdARBPjTddc9Vextduskypz4dUiqwWzD+yuH oaLXXM9m5EYk3PpuyyihpIUTeo62SogWUorkbwiBCsj2OXx/qNL3t/ZIacWwnkYQ+V dp1Zy6bBdkyfQ== Date: Thu, 31 Oct 2024 16:15:12 -0700 Subject: [PATCH 25/41] xfs: use kfree_rcu_mightsleep to free the perag structures From: "Darrick J. Wong" To: djwong@kernel.org, aalbersh@kernel.org Cc: linux-xfs@vger.kernel.org Message-ID: <173041566299.962545.8979393701897603900.stgit@frogsfrogsfrogs> In-Reply-To: <173041565874.962545.15559186670255081566.stgit@frogsfrogsfrogs> References: <173041565874.962545.15559186670255081566.stgit@frogsfrogsfrogs> Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Christoph Hellwig Source kernel commit: 4ef7c6d39dc72dae983b836c8b2b5de7128c0da3 Using the kfree_rcu_mightsleep is simpler and removes the need for a rcu_head in the perag structure. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Chandan Babu R --- include/kmem.h | 5 +++++ libxfs/xfs_ag.c | 12 +----------- libxfs/xfs_ag.h | 3 --- 3 files changed, 6 insertions(+), 14 deletions(-) diff --git a/include/kmem.h b/include/kmem.h index 8739d824008e2a..16a7957f1acee3 100644 --- a/include/kmem.h +++ b/include/kmem.h @@ -71,6 +71,11 @@ static inline void kvfree(const void *ptr) kfree(ptr); } +static inline void kfree_rcu_mightsleep(const void *ptr) +{ + kfree(ptr); +} + __attribute__((format(printf,2,3))) char *kasprintf(gfp_t gfp, const char *fmt, ...); diff --git a/libxfs/xfs_ag.c b/libxfs/xfs_ag.c index ed9ac7f58d1aba..1b65ba983ad542 100644 --- a/libxfs/xfs_ag.c +++ b/libxfs/xfs_ag.c @@ -233,16 +233,6 @@ xfs_initialize_perag_data( return error; } -STATIC void -__xfs_free_perag( - struct rcu_head *head) -{ - struct xfs_perag *pag = container_of(head, struct xfs_perag, rcu_head); - - ASSERT(!delayed_work_pending(&pag->pag_blockgc_work)); - kfree(pag); -} - /* * Free up the per-ag resources associated with the mount structure. */ @@ -268,7 +258,7 @@ xfs_free_perag( xfs_perag_rele(pag); XFS_IS_CORRUPT(pag->pag_mount, atomic_read(&pag->pag_active_ref) != 0); - call_rcu(&pag->rcu_head, __xfs_free_perag); + kfree_rcu_mightsleep(pag); } } diff --git a/libxfs/xfs_ag.h b/libxfs/xfs_ag.h index 35de09a2516c70..d62c266c0b44d5 100644 --- a/libxfs/xfs_ag.h +++ b/libxfs/xfs_ag.h @@ -63,9 +63,6 @@ struct xfs_perag { /* Blocks reserved for the reverse mapping btree. */ struct xfs_ag_resv pag_rmapbt_resv; - /* for rcu-safe freeing */ - struct rcu_head rcu_head; - /* Precalculated geometry info */ xfs_agblock_t block_count; xfs_agblock_t min_block;