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[94.39.157.43]) by smtp.gmail.com with ESMTPSA id v65sm2640095wmv.5.2017.05.19.04.21.31 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 19 May 2017 04:21:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=+vRc/k5TUu6B+dl5rCHeczEqKhDP2miAJ0F2frxRREg=; b=nFN+BLee6IFNNxYbW0UR72aH/UPvXniONhChChUv9sL4eewQANHoZtoxN+lMPRnToS trfavpuS+pTy6tZXlh4swy1SiyKOjduena8fbKHI0T0ZAQMDajU2k0+AJ5eYwcUxml30 cuw5i7pxwVOtw7cbrOlDbLa79BxSCPJOi0PKbgCacjBFF4cnWz3IqHQ6XFNDpBjriifh LElRjTNrEAsdUZHG1T8HQi6qy67GAodIvo/kpNP06baAOQ0ARPmNXr5SmqRk70Z8WECU xC1usiUi5+iT3AkrMpneiL+BNJwrrW5qpJpPs4MeKr0Wow/6ut8HZ4A6L+xjpNILMTGX Nvwg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=+vRc/k5TUu6B+dl5rCHeczEqKhDP2miAJ0F2frxRREg=; b=oVDNoA1VFPxokRNK07gAomQgCMNkN0L5hWXcejumS+4wVb6swiuHQXt3a/90uZPmWx QLKmMXrzokEPp9aiNtxYBSG7rEhUntMCMry6EsrSHAFEkp+Vo6w08Q+xggI+BzjmR5y3 Un1N/RVRdB4mWsAe+5+15OjTyX46DnriHzcYjNMSPgHVFPwuUYXnFUZJuZ054KAaHQrO wN4JDQviYVzdhHVSj/SUi/lolvdizUl1sXcJEhJDKvmsF4TEkR833nITHnZrgbqiKeK3 TrxSeCaTnJuyYj1OaAYHsEQaCSJd9JrkvVIz7L6xINvNYHLrFnXjLAr6JjBDmLajo/DD 4MNA== X-Gm-Message-State: AODbwcDljvIbKWN8jchsf02USd7eVTdENEYsbYZiLr4W2LfT6d4V+twi s1jzOmdu+zRK3g== X-Received: by 10.28.41.66 with SMTP id p63mr5435953wmp.88.1495192892298; Fri, 19 May 2017 04:21:32 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Date: Fri, 19 May 2017 13:21:06 +0200 Message-Id: <1495192872-27667-15-git-send-email-pbonzini@redhat.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1495192872-27667-1-git-send-email-pbonzini@redhat.com> References: <1495192872-27667-1-git-send-email-pbonzini@redhat.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:400c:c09::244 Subject: [Qemu-devel] [PULL 14/20] nbd/client.c: use errp instead of LOG X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Vladimir Sementsov-Ogievskiy Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Vladimir Sementsov-Ogievskiy Move to modern errp scheme from just LOGging errors. Signed-off-by: Vladimir Sementsov-Ogievskiy Message-Id: <20170516094533.6160-6-vsementsov@virtuozzo.com> Signed-off-by: Paolo Bonzini --- block/nbd-client.c | 7 ++++++- include/block/nbd.h | 5 +++-- nbd/client.c | 30 +++++++++++++++++------------- qemu-nbd.c | 3 ++- 4 files changed, 28 insertions(+), 17 deletions(-) diff --git a/block/nbd-client.c b/block/nbd-client.c index 538d95e..073032b 100644 --- a/block/nbd-client.c +++ b/block/nbd-client.c @@ -28,6 +28,7 @@ */ =20 #include "qemu/osdep.h" +#include "qapi/error.h" #include "nbd-client.h" =20 #define HANDLE_TO_INDEX(bs, handle) ((handle) ^ ((uint64_t)(intptr_t)bs)) @@ -70,10 +71,14 @@ static coroutine_fn void nbd_read_reply_entry(void *opa= que) NBDClientSession *s =3D opaque; uint64_t i; int ret; + Error *local_err; =20 for (;;) { assert(s->reply.handle =3D=3D 0); - ret =3D nbd_receive_reply(s->ioc, &s->reply); + ret =3D nbd_receive_reply(s->ioc, &s->reply, &local_err); + if (ret < 0) { + error_report_err(local_err); + } if (ret <=3D 0) { break; } diff --git a/include/block/nbd.h b/include/block/nbd.h index 9d385ea..416257a 100644 --- a/include/block/nbd.h +++ b/include/block/nbd.h @@ -133,9 +133,10 @@ int nbd_receive_negotiate(QIOChannel *ioc, const char = *name, uint16_t *flags, QCryptoTLSCreds *tlscreds, const char *hostname, QIOChannel **outioc, off_t *size, Error **errp); -int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t flags, off_t size); +int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t flags, off_t size, + Error **errp); ssize_t nbd_send_request(QIOChannel *ioc, NBDRequest *request); -ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply); +ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply, Error **errp); int nbd_client(int fd); int nbd_disconnect(int fd); =20 diff --git a/nbd/client.c b/nbd/client.c index f102375..595d99e 100644 --- a/nbd/client.c +++ b/nbd/client.c @@ -627,11 +627,13 @@ fail: } =20 #ifdef __linux__ -int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t flags, off_t size) +int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t flags, off_t size, + Error **errp) { unsigned long sectors =3D size / BDRV_SECTOR_SIZE; if (size / BDRV_SECTOR_SIZE !=3D sectors) { - LOG("Export size %lld too large for 32-bit kernel", (long long) si= ze); + error_setg(errp, "Export size %lld too large for 32-bit kernel", + (long long) size); return -E2BIG; } =20 @@ -639,7 +641,7 @@ int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t f= lags, off_t size) =20 if (ioctl(fd, NBD_SET_SOCK, (unsigned long) sioc->fd) < 0) { int serrno =3D errno; - LOG("Failed to set NBD socket"); + error_setg(errp, "Failed to set NBD socket"); return -serrno; } =20 @@ -647,7 +649,7 @@ int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t f= lags, off_t size) =20 if (ioctl(fd, NBD_SET_BLKSIZE, (unsigned long)BDRV_SECTOR_SIZE) < 0) { int serrno =3D errno; - LOG("Failed setting NBD block size"); + error_setg(errp, "Failed setting NBD block size"); return -serrno; } =20 @@ -659,7 +661,7 @@ int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t f= lags, off_t size) =20 if (ioctl(fd, NBD_SET_SIZE_BLOCKS, sectors) < 0) { int serrno =3D errno; - LOG("Failed setting size (in blocks)"); + error_setg(errp, "Failed setting size (in blocks)"); return -serrno; } =20 @@ -670,12 +672,12 @@ int nbd_init(int fd, QIOChannelSocket *sioc, uint16_t= flags, off_t size) =20 if (ioctl(fd, BLKROSET, (unsigned long) &read_only) < 0) { int serrno =3D errno; - LOG("Failed setting read-only attribute"); + error_setg(errp, "Failed setting read-only attribute"); return -serrno; } } else { int serrno =3D errno; - LOG("Failed setting flags"); + error_setg(errp, "Failed setting flags"); return -serrno; } } @@ -723,8 +725,10 @@ int nbd_disconnect(int fd) } =20 #else -int nbd_init(int fd, QIOChannelSocket *ioc, uint16_t flags, off_t size) +int nbd_init(int fd, QIOChannelSocket *ioc, uint16_t flags, off_t size, + Error **errp) { + error_setg(errp, "nbd_init is only supported on Linux"); return -ENOTSUP; } =20 @@ -758,19 +762,19 @@ ssize_t nbd_send_request(QIOChannel *ioc, NBDRequest = *request) return write_sync(ioc, buf, sizeof(buf), NULL); } =20 -ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply) +ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *reply, Error **errp) { uint8_t buf[NBD_REPLY_SIZE]; uint32_t magic; ssize_t ret; =20 - ret =3D read_sync_eof(ioc, buf, sizeof(buf), NULL); + ret =3D read_sync_eof(ioc, buf, sizeof(buf), errp); if (ret <=3D 0) { return ret; } =20 if (ret !=3D sizeof(buf)) { - LOG("read failed"); + error_setg(errp, "read failed"); return -EINVAL; } =20 @@ -788,7 +792,7 @@ ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *re= ply) =20 if (reply->error =3D=3D ESHUTDOWN) { /* This works even on mingw which lacks a native ESHUTDOWN */ - LOG("server shutting down"); + error_setg(errp, "server shutting down"); return -EINVAL; } TRACE("Got reply: { magic =3D 0x%" PRIx32 ", .error =3D % " PRId32 @@ -796,7 +800,7 @@ ssize_t nbd_receive_reply(QIOChannel *ioc, NBDReply *re= ply) magic, reply->error, reply->handle); =20 if (magic !=3D NBD_REPLY_MAGIC) { - LOG("invalid magic (got 0x%" PRIx32 ")", magic); + error_setg(errp, "invalid magic (got 0x%" PRIx32 ")", magic); return -EINVAL; } return sizeof(buf); diff --git a/qemu-nbd.c b/qemu-nbd.c index b7ab86b..f60842f 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -288,8 +288,9 @@ static void *nbd_client_thread(void *arg) goto out_socket; } =20 - ret =3D nbd_init(fd, sioc, nbdflags, size); + ret =3D nbd_init(fd, sioc, nbdflags, size, &local_error); if (ret < 0) { + error_report_err(local_error); goto out_fd; } =20 --=20 1.8.3.1