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Sat, 27 Nov 2021 15:19:41 +0000 From: mwilck@suse.com To: Christophe Varoqui , Benjamin Marzinski Date: Sat, 27 Nov 2021 16:18:55 +0100 Message-Id: <20211127151929.7727-3-mwilck@suse.com> In-Reply-To: <20211127151929.7727-1-mwilck@suse.com> References: <20211127151929.7727-1-mwilck@suse.com> MIME-Version: 1.0 X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-MIME-Autoconverted: from quoted-printable to 8bit by lists01.pubmisc.prod.ext.phx2.redhat.com id 1ARFJouA032716 X-loop: dm-devel@redhat.com Cc: lixiaokeng@huawei.com, Chongyun Wu , dm-devel@redhat.com, Martin Wilck Subject: [dm-devel] [PATCH v3 02/35] libmultipath: add trylock() helper X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com From: Martin Wilck Add a small helper. Reviewed-by: Benjamin Marzinski Signed-off-by: Martin Wilck --- libmultipath/lock.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libmultipath/lock.h b/libmultipath/lock.h index a170efe..d99eedb 100644 --- a/libmultipath/lock.h +++ b/libmultipath/lock.h @@ -12,6 +12,11 @@ static inline void lock(struct mutex_lock *a) pthread_mutex_lock(&a->mutex); } +static inline int trylock(struct mutex_lock *a) +{ + return pthread_mutex_trylock(&a->mutex); +} + static inline int timedlock(struct mutex_lock *a, struct timespec *tmo) { return pthread_mutex_timedlock(&a->mutex, tmo);