Message ID | 20230317081904.24389-3-xuchuangxclwt@bytedance.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Fri, 17 Mar 2023 01:19:24 -0700 (PDT) From: Chuang Xu <xuchuangxclwt@bytedance.com> To: qemu-devel@nongnu.org Cc: dgilbert@redhat.com, quintela@redhat.com, pbonzini@redhat.com, peterx@redhat.com, david@redhat.com, philmd@linaro.org, zhouyibo@bytedance.com, Chuang Xu <xuchuangxclwt@bytedance.com> Subject: [PATCH v8 2/6] rcu: Introduce rcu_read_is_locked() Date: Fri, 17 Mar 2023 16:19:00 +0800 Message-Id: <20230317081904.24389-3-xuchuangxclwt@bytedance.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) In-Reply-To: <20230317081904.24389-1-xuchuangxclwt@bytedance.com> References: <20230317081904.24389-1-xuchuangxclwt@bytedance.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::1034; envelope-from=xuchuangxclwt@bytedance.com; helo=mail-pj1-x1034.google.com X-Spam_score_int: 4 X-Spam_score: 0.4 X-Spam_bar: / X-Spam_report: (0.4 / 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, FROM_LOCAL_NOVOWEL=0.5, HK_RANDOM_ENVFROM=0.999, HK_RANDOM_FROM=1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <https://lists.nongnu.org/archive/html/qemu-devel> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org |
Series |
migration: reduce time of loading non-iterable vmstate
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expand
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diff --git a/include/qemu/rcu.h b/include/qemu/rcu.h index 313fc414bc..7bf45602e1 100644 --- a/include/qemu/rcu.h +++ b/include/qemu/rcu.h @@ -115,6 +115,13 @@ static inline void rcu_read_unlock(void) } } +static inline bool rcu_read_is_locked(void) +{ + struct rcu_reader_data *p_rcu_reader = get_ptr_rcu_reader(); + + return p_rcu_reader->depth > 0; +} + extern void synchronize_rcu(void); /*
Add rcu_read_is_locked() to detect holding of rcu lock. Signed-off-by: Chuang Xu <xuchuangxclwt@bytedance.com> --- include/qemu/rcu.h | 7 +++++++ 1 file changed, 7 insertions(+)