From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.3 required=3.0 tests=FROM_EXCESS_BASE64, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EA8EBC004C9 for ; Tue, 7 May 2019 12:45:32 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A1C58205C9 for ; Tue, 7 May 2019 12:45:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A1C58205C9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([127.0.0.1]:46246 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hNzTP-0007Vz-TI for qemu-devel@archiver.kernel.org; Tue, 07 May 2019 08:45:31 -0400 Received: from eggs.gnu.org ([209.51.188.92]:54860) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hNzRi-0006bS-GL for qemu-devel@nongnu.org; Tue, 07 May 2019 08:43:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hNzRg-00086l-Kh for qemu-devel@nongnu.org; Tue, 07 May 2019 08:43:46 -0400 Received: from mx1.redhat.com ([209.132.183.28]:51954) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hNzRg-00086N-CK for qemu-devel@nongnu.org; Tue, 07 May 2019 08:43:44 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id AC9F4307CDE3; Tue, 7 May 2019 12:43:43 +0000 (UTC) Received: from redhat.com (ovpn-112-52.ams2.redhat.com [10.36.112.52]) by smtp.corp.redhat.com (Postfix) with ESMTPS id CDBEC627D8; Tue, 7 May 2019 12:43:41 +0000 (UTC) Date: Tue, 7 May 2019 13:43:38 +0100 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: Christian Schoenebeck Message-ID: <20190507124338.GO27205@redhat.com> References: <7a29e2f807a9800f515b91e60c3a732b3abbd097.1557093245.git.qemu_oss@crudebyte.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <7a29e2f807a9800f515b91e60c3a732b3abbd097.1557093245.git.qemu_oss@crudebyte.com> User-Agent: Mutt/1.11.4 (2019-03-13) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.49]); Tue, 07 May 2019 12:43:43 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: Re: [Qemu-devel] [PATCH v3 2/5] 9P: trivial cleanup of QID path collision mitigation 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: , Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= Cc: qemu-devel@nongnu.org, Antonios Motakis , Greg Kurz Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Tue, Apr 23, 2019 at 01:35:23PM +0200, Christian Schoenebeck via Qemu-devel wrote: > Addresses trivial changes regarding the previous patch as requested > on the mailing list a while ago. These changes should just be made to the original 4 patches individually rather than in a new patch. > > * Removed unneccessary parantheses: > https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg02661.html > > * Removed unneccessary g_malloc() result checks: > https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg02814.html > > * Unsigned type changes: > https://lists.gnu.org/archive/html/qemu-devel/2018-02/msg02581.html > > Signed-off-by: Christian Schoenebeck > --- > fsdev/9p-marshal.h | 2 +- > hw/9pfs/9p.c | 16 +++++----------- > hw/9pfs/trace-events | 14 +++++++------- > 3 files changed, 13 insertions(+), 19 deletions(-) > > diff --git a/fsdev/9p-marshal.h b/fsdev/9p-marshal.h > index d1ad3645c4..8f3babb60a 100644 > --- a/fsdev/9p-marshal.h > +++ b/fsdev/9p-marshal.h > @@ -9,7 +9,7 @@ typedef struct V9fsString > > typedef struct V9fsQID > { > - int8_t type; > + uint8_t type; > uint32_t version; > uint64_t path; > } V9fsQID; > diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c > index b9bbdcbaee..2b893e25a1 100644 > --- a/hw/9pfs/9p.c > +++ b/hw/9pfs/9p.c > @@ -587,13 +587,13 @@ static uint32_t qpf_hash(QpfEntry e) > static bool qpp_cmp_func(const void *obj, const void *userp) > { > const QppEntry *e1 = obj, *e2 = userp; > - return (e1->dev == e2->dev) && (e1->ino_prefix == e2->ino_prefix); > + return e1->dev == e2->dev && e1->ino_prefix == e2->ino_prefix; > } > > static bool qpf_cmp_func(const void *obj, const void *userp) > { > const QpfEntry *e1 = obj, *e2 = userp; > - return (e1->dev == e2->dev) && (e1->ino == e2->ino); > + return e1->dev == e2->dev && e1->ino == e2->ino; > } > > static void qp_table_remove(void *p, uint32_t h, void *up) > @@ -630,9 +630,6 @@ static int qid_path_fullmap(V9fsPDU *pdu, const struct stat *stbuf, > } > > val = g_malloc0(sizeof(QppEntry)); > - if (!val) { > - return -ENOMEM; > - } > *val = lookup; > > /* new unique inode and device combo */ > @@ -673,9 +670,6 @@ static int qid_path_prefixmap(V9fsPDU *pdu, const struct stat *stbuf, > } > > val = g_malloc0(sizeof(QppEntry)); > - if (!val) { > - return -ENOMEM; > - } > *val = lookup; > > /* new unique inode prefix and device combo */ > @@ -870,9 +864,9 @@ static int donttouch_stat(V9fsStat *stat) > { > if (stat->type == -1 && > stat->dev == -1 && > - stat->qid.type == -1 && > - stat->qid.version == -1 && > - stat->qid.path == -1 && > + stat->qid.type == 0xff && > + stat->qid.version == (uint32_t) -1 && > + stat->qid.path == (uint64_t) -1 && > stat->mode == -1 && > stat->atime == -1 && > stat->mtime == -1 && > diff --git a/hw/9pfs/trace-events b/hw/9pfs/trace-events > index c0a0a4ab5d..6964756922 100644 > --- a/hw/9pfs/trace-events > +++ b/hw/9pfs/trace-events > @@ -6,7 +6,7 @@ v9fs_rerror(uint16_t tag, uint8_t id, int err) "tag %d id %d err %d" > v9fs_version(uint16_t tag, uint8_t id, int32_t msize, char* version) "tag %d id %d msize %d version %s" > v9fs_version_return(uint16_t tag, uint8_t id, int32_t msize, char* version) "tag %d id %d msize %d version %s" > v9fs_attach(uint16_t tag, uint8_t id, int32_t fid, int32_t afid, char* uname, char* aname) "tag %u id %u fid %d afid %d uname %s aname %s" > -v9fs_attach_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path) "tag %d id %d type %d version %d path %"PRId64 > +v9fs_attach_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path) "tag %d id %d type %d version %d path %"PRId64 > v9fs_stat(uint16_t tag, uint8_t id, int32_t fid) "tag %d id %d fid %d" > v9fs_stat_return(uint16_t tag, uint8_t id, int32_t mode, int32_t atime, int32_t mtime, int64_t length) "tag %d id %d stat={mode %d atime %d mtime %d length %"PRId64"}" > v9fs_getattr(uint16_t tag, uint8_t id, int32_t fid, uint64_t request_mask) "tag %d id %d fid %d request_mask %"PRIu64 > @@ -14,9 +14,9 @@ v9fs_getattr_return(uint16_t tag, uint8_t id, uint64_t result_mask, uint32_t mod > v9fs_walk(uint16_t tag, uint8_t id, int32_t fid, int32_t newfid, uint16_t nwnames) "tag %d id %d fid %d newfid %d nwnames %d" > v9fs_walk_return(uint16_t tag, uint8_t id, uint16_t nwnames, void* qids) "tag %d id %d nwnames %d qids %p" > v9fs_open(uint16_t tag, uint8_t id, int32_t fid, int32_t mode) "tag %d id %d fid %d mode %d" > -v9fs_open_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" > +v9fs_open_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" > v9fs_lcreate(uint16_t tag, uint8_t id, int32_t dfid, int32_t flags, int32_t mode, uint32_t gid) "tag %d id %d dfid %d flags %d mode %d gid %u" > -v9fs_lcreate_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int32_t iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" > +v9fs_lcreate_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int32_t iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" > v9fs_fsync(uint16_t tag, uint8_t id, int32_t fid, int datasync) "tag %d id %d fid %d datasync %d" > v9fs_clunk(uint16_t tag, uint8_t id, int32_t fid) "tag %d id %d fid %d" > v9fs_read(uint16_t tag, uint8_t id, int32_t fid, uint64_t off, uint32_t max_count) "tag %d id %d fid %d off %"PRIu64" max_count %u" > @@ -26,21 +26,21 @@ v9fs_readdir_return(uint16_t tag, uint8_t id, uint32_t count, ssize_t retval) "t > v9fs_write(uint16_t tag, uint8_t id, int32_t fid, uint64_t off, uint32_t count, int cnt) "tag %d id %d fid %d off %"PRIu64" count %u cnt %d" > v9fs_write_return(uint16_t tag, uint8_t id, int32_t total, ssize_t err) "tag %d id %d total %d err %zd" > v9fs_create(uint16_t tag, uint8_t id, int32_t fid, char* name, int32_t perm, int8_t mode) "tag %d id %d fid %d name %s perm %d mode %d" > -v9fs_create_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" > +v9fs_create_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int iounit) "tag %d id %d qid={type %d version %d path %"PRId64"} iounit %d" > v9fs_symlink(uint16_t tag, uint8_t id, int32_t fid, char* name, char* symname, uint32_t gid) "tag %d id %d fid %d name %s symname %s gid %u" > -v9fs_symlink_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path) "tag %d id %d qid={type %d version %d path %"PRId64"}" > +v9fs_symlink_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path) "tag %d id %d qid={type %d version %d path %"PRId64"}" > v9fs_flush(uint16_t tag, uint8_t id, int16_t flush_tag) "tag %d id %d flush_tag %d" > v9fs_link(uint16_t tag, uint8_t id, int32_t dfid, int32_t oldfid, char* name) "tag %d id %d dfid %d oldfid %d name %s" > v9fs_remove(uint16_t tag, uint8_t id, int32_t fid) "tag %d id %d fid %d" > v9fs_wstat(uint16_t tag, uint8_t id, int32_t fid, int32_t mode, int32_t atime, int32_t mtime) "tag %u id %u fid %d stat={mode %d atime %d mtime %d}" > v9fs_mknod(uint16_t tag, uint8_t id, int32_t fid, int mode, int major, int minor) "tag %d id %d fid %d mode %d major %d minor %d" > -v9fs_mknod_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path) "tag %d id %d qid={type %d version %d path %"PRId64"}" > +v9fs_mknod_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path) "tag %d id %d qid={type %d version %d path %"PRId64"}" > v9fs_lock(uint16_t tag, uint8_t id, int32_t fid, uint8_t type, uint64_t start, uint64_t length) "tag %d id %d fid %d type %d start %"PRIu64" length %"PRIu64 > v9fs_lock_return(uint16_t tag, uint8_t id, int8_t status) "tag %d id %d status %d" > v9fs_getlock(uint16_t tag, uint8_t id, int32_t fid, uint8_t type, uint64_t start, uint64_t length)"tag %d id %d fid %d type %d start %"PRIu64" length %"PRIu64 > v9fs_getlock_return(uint16_t tag, uint8_t id, uint8_t type, uint64_t start, uint64_t length, uint32_t proc_id) "tag %d id %d type %d start %"PRIu64" length %"PRIu64" proc_id %u" > v9fs_mkdir(uint16_t tag, uint8_t id, int32_t fid, char* name, int mode, uint32_t gid) "tag %u id %u fid %d name %s mode %d gid %u" > -v9fs_mkdir_return(uint16_t tag, uint8_t id, int8_t type, int32_t version, int64_t path, int err) "tag %u id %u qid={type %d version %d path %"PRId64"} err %d" > +v9fs_mkdir_return(uint16_t tag, uint8_t id, uint8_t type, uint32_t version, uint64_t path, int err) "tag %u id %u qid={type %d version %d path %"PRId64"} err %d" > v9fs_xattrwalk(uint16_t tag, uint8_t id, int32_t fid, int32_t newfid, char* name) "tag %d id %d fid %d newfid %d name %s" > v9fs_xattrwalk_return(uint16_t tag, uint8_t id, int64_t size) "tag %d id %d size %"PRId64 > v9fs_xattrcreate(uint16_t tag, uint8_t id, int32_t fid, char* name, uint64_t size, int flags) "tag %d id %d fid %d name %s size %"PRIu64" flags %d" > -- > 2.11.0 > > Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|