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([37.113.214.163]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c0c5e99977fsm305347866b.20.2026.06.22.00.36.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jun 2026 00:36:53 -0700 (PDT) From: Evgeny Kolmakov To: qemu-devel@nongnu.org Cc: qemu-trivial@nongnu.org, berrange@redhat.com, Evgeny Kolmakov Subject: [PATCH] util/filemonitor-inotify: Use QEMU_LOCK_GUARD() Date: Mon, 22 Jun 2026 10:36:47 +0300 Message-ID: <20260622073647.3721-1-randomjack94dev@gmail.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::632; envelope-from=randomjack94dev@gmail.com; helo=mail-ej1-x632.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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-trivial@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-trivial-bounces+qemu-trivial=archiver.kernel.org@nongnu.org Sender: qemu-trivial-bounces+qemu-trivial=archiver.kernel.org@nongnu.org Replace manual qemu_mutex_(un)lock() calls with QEMU_LOCK_GUARD() to remove 'goto cleanup' code Signed-off-by: Evgeny Kolmakov --- util/filemonitor-inotify.c | 28 ++++++++-------------------- 1 file changed, 8 insertions(+), 20 deletions(-) diff --git a/util/filemonitor-inotify.c b/util/filemonitor-inotify.c index 7352b9fe53..fe2057f820 100644 --- a/util/filemonitor-inotify.c +++ b/util/filemonitor-inotify.c @@ -21,6 +21,7 @@ #include "qemu/osdep.h" #include "qemu/filemonitor.h" #include "qemu/main-loop.h" +#include "qemu/lockable.h" #include "qemu/error-report.h" #include "qapi/error.h" #include "trace.h" @@ -59,10 +60,9 @@ static void qemu_file_monitor_watch(void *arg) int used = 0; int len; - qemu_mutex_lock(&mon->lock); + QEMU_LOCK_GUARD(&mon->lock); if (mon->fd == -1) { - qemu_mutex_unlock(&mon->lock); return; } @@ -72,11 +72,10 @@ static void qemu_file_monitor_watch(void *arg) if (errno != EAGAIN) { error_report("Failure monitoring inotify FD '%s'," "disabling events", strerror(errno)); - goto cleanup; } /* no more events right now */ - goto cleanup; + return; } /* Loop over all events in the buffer */ @@ -151,9 +150,6 @@ static void qemu_file_monitor_watch(void *arg) } } } - - cleanup: - qemu_mutex_unlock(&mon->lock); } @@ -257,9 +253,8 @@ qemu_file_monitor_add_watch(QFileMonitor *mon, { QFileMonitorDir *dir; QFileMonitorWatch watch; - int64_t ret = -1; - qemu_mutex_lock(&mon->lock); + QEMU_LOCK_GUARD(&mon->lock); dir = g_hash_table_lookup(mon->dirs, dirpath); if (!dir) { int rv = inotify_add_watch(mon->fd, dirpath, @@ -268,7 +263,7 @@ qemu_file_monitor_add_watch(QFileMonitor *mon, if (rv < 0) { error_setg_errno(errp, errno, "Unable to watch '%s'", dirpath); - goto cleanup; + return -1; } trace_qemu_file_monitor_enable_watch(mon, dirpath, rv); @@ -297,11 +292,7 @@ qemu_file_monitor_add_watch(QFileMonitor *mon, filename ? filename : "", cb, opaque, watch.id); - ret = watch.id; - - cleanup: - qemu_mutex_unlock(&mon->lock); - return ret; + return watch.id; } @@ -312,13 +303,13 @@ void qemu_file_monitor_remove_watch(QFileMonitor *mon, QFileMonitorDir *dir; gsize i; - qemu_mutex_lock(&mon->lock); + QEMU_LOCK_GUARD(&mon->lock); trace_qemu_file_monitor_remove_watch(mon, dirpath, id); dir = g_hash_table_lookup(mon->dirs, dirpath); if (!dir) { - goto cleanup; + return; } for (i = 0; i < dir->watches->len; i++) { @@ -342,7 +333,4 @@ void qemu_file_monitor_remove_watch(QFileMonitor *mon, qemu_set_fd_handler(mon->fd, NULL, NULL, NULL); } } - - cleanup: - qemu_mutex_unlock(&mon->lock); } -- 2.43.0