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([71.212.136.242]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2ea024ec723sm1484438a91.46.2024.11.14.08.01.32 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Nov 2024 08:01:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1731600093; x=1732204893; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=gGugcia7xIHYiO2oiJjHlSRtV4JGvYxNcTYF4XQ4e4A=; b=CArrUWp3kCgUI0dpBxSBIZw8za/+WIEJFor9gLCw5ho5Glxra1/xJu2CUqSR/0WOR4 YTjsvwEPeiijbAtq/Ew9kWQh4MuDeWVuBvvoQtMNXv/SKAVskHDn2yM3AnI4PmuEkN1H n9t70VFQBhlNXajOFjH6JDtN5/E3mHE875EYOP4AVpyE2oQP27dfmdSOP9wL9gFhyKqT NIYJQ8ivK/GVkdKaVtL38JzzOtcAaJ8Ib/CiDGOEa1sJQOf1Aq554dMvoQ19GkyqQC8F BadIEj6tyDu1r2yJvEEpjDpy7SVWwFysVgjPA8H3YjCMKaZ1Bda3Hj82DozCOEnFr7et Qhpw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731600093; x=1732204893; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=gGugcia7xIHYiO2oiJjHlSRtV4JGvYxNcTYF4XQ4e4A=; b=B4hrMj03hHh9CeSFfKOC8NMvD90HTCZfoE4YaAHh4ciurt7ls6dEBs+9Az/umAWBi2 jN3QnqTZ7Q5b7vKZDV7vzXgwvqDNE3afROTS2p+eFf5YWXLd+58mhmbMOdPmkbIfKoFS Ab43I24/ZZSlUu2I/nqlNV55T5hNehaPq7aBYwwIPSwQQ0lYv/xjwpW0sJAjH01h26g8 7/S1p0UkJh/1pKMemQ5yLJflLfLAtjuJR5jyQCca2j+f9MBWDzW4dxTVp3eTIA8KGEXg XzedLAb2iab1U5zEl6HecVAEdbIBFJOISZMGSVKGB1EjxvDYKmZx+ndrEepqthjv6UkU oj3g== X-Gm-Message-State: AOJu0YygJvhLE8u5ZYeikgVcsTXFOxyvr/Vn5G5PmgYNaSZ+cN8uKUOj WK8G9YxryV5o/cWpTyY04MEtJvzeTEYILC7zu4go3fracoLgdf9jfIQqXLLhKHJ8gqwzYc87DX9 f X-Google-Smtp-Source: AGHT+IEU0J+mWXRFECjKORFcPUCCkpmyiemTjYiQwKr6HpM7dRdd+H8jcIT/5H2by5bJyEsnm5rMog== X-Received: by 2002:a17:90b:1d81:b0:2e2:b41b:854e with SMTP id 98e67ed59e1d1-2ea0631e509mr3129501a91.20.1731600093063; Thu, 14 Nov 2024 08:01:33 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v2 01/54] util/interval-tree: Introduce interval_tree_free_nodes Date: Thu, 14 Nov 2024 08:00:37 -0800 Message-ID: <20241114160131.48616-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241114160131.48616-1-richard.henderson@linaro.org> References: <20241114160131.48616-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::436; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x436.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1731600650932116600 Content-Type: text/plain; charset="utf-8" Provide a general-purpose release-all-nodes operation, that allows for the IntervalTreeNode to be embeded within a larger structure. Signed-off-by: Richard Henderson Reviewed-by: Pierrick Bouvier --- include/qemu/interval-tree.h | 11 +++++++++++ util/interval-tree.c | 20 ++++++++++++++++++++ util/selfmap.c | 13 +------------ 3 files changed, 32 insertions(+), 12 deletions(-) diff --git a/include/qemu/interval-tree.h b/include/qemu/interval-tree.h index 25006debe8..d90ea6d17f 100644 --- a/include/qemu/interval-tree.h +++ b/include/qemu/interval-tree.h @@ -96,4 +96,15 @@ IntervalTreeNode *interval_tree_iter_first(IntervalTreeR= oot *root, IntervalTreeNode *interval_tree_iter_next(IntervalTreeNode *node, uint64_t start, uint64_t last); =20 +/** + * interval_tree_free_nodes: + * @root: root of the tree + * @it_offset: offset from outermost type to IntervalTreeNode + * + * Free, via g_free, all nodes under @root. IntervalTreeNode may + * not be the true type of the nodes allocated; @it_offset gives + * the offset from the outermost type to the IntervalTreeNode member. + */ +void interval_tree_free_nodes(IntervalTreeRoot *root, size_t it_offset); + #endif /* QEMU_INTERVAL_TREE_H */ diff --git a/util/interval-tree.c b/util/interval-tree.c index 53465182e6..663d3ec222 100644 --- a/util/interval-tree.c +++ b/util/interval-tree.c @@ -639,6 +639,16 @@ static void rb_erase_augmented_cached(RBNode *node, RB= RootLeftCached *root, rb_erase_augmented(node, &root->rb_root, augment); } =20 +static void rb_node_free(RBNode *rb, size_t rb_offset) +{ + if (rb->rb_left) { + rb_node_free(rb->rb_left, rb_offset); + } + if (rb->rb_right) { + rb_node_free(rb->rb_right, rb_offset); + } + g_free((void *)rb - rb_offset); +} =20 /* * Interval trees. @@ -870,6 +880,16 @@ IntervalTreeNode *interval_tree_iter_next(IntervalTree= Node *node, } } =20 +void interval_tree_free_nodes(IntervalTreeRoot *root, size_t it_offset) +{ + if (root && root->rb_root.rb_node) { + rb_node_free(root->rb_root.rb_node, + it_offset + offsetof(IntervalTreeNode, rb)); + root->rb_root.rb_node =3D NULL; + root->rb_leftmost =3D NULL; + } +} + /* Occasionally useful for calling from within the debugger. */ #if 0 static void debug_interval_tree_int(IntervalTreeNode *node, diff --git a/util/selfmap.c b/util/selfmap.c index 483cb617e2..d2b86da301 100644 --- a/util/selfmap.c +++ b/util/selfmap.c @@ -87,23 +87,12 @@ IntervalTreeRoot *read_self_maps(void) * @root: an interval tree * * Free a tree of MapInfo structures. - * Since we allocated each MapInfo in one chunk, we need not consider the - * contents and can simply free each RBNode. */ =20 -static void free_rbnode(RBNode *n) -{ - if (n) { - free_rbnode(n->rb_left); - free_rbnode(n->rb_right); - g_free(n); - } -} - void free_self_maps(IntervalTreeRoot *root) { if (root) { - free_rbnode(root->rb_root.rb_node); + interval_tree_free_nodes(root, offsetof(MapInfo, itree)); g_free(root); } } --=20 2.43.0