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Mon, 09 Mar 2026 08:09:41 -0700 (PDT) X-Received: by 2002:a05:6000:400e:b0:437:745f:a6b8 with SMTP id ffacd0b85a97d-439da34819dmr18284621f8f.9.1773068981183; Mon, 09 Mar 2026 08:09:41 -0700 (PDT) From: Hanna Czenczek To: qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, Hanna Czenczek , Kevin Wolf , Brian Song Subject: [PATCH v5 15/25] block: Move qemu_fcntl_addfl() into osdep.c Date: Mon, 9 Mar 2026 16:08:46 +0100 Message-ID: <20260309150856.26800-16-hreitz@redhat.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260309150856.26800-1-hreitz@redhat.com> References: <20260309150856.26800-1-hreitz@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=hreitz@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -3 X-Spam_score: -0.4 X-Spam_bar: / X-Spam_report: (-0.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.819, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.903, SPF_HELO_PASS=-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 development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1773069254006158501 Content-Type: text/plain; charset="utf-8" Move file-posix's helper to add a flag (or a set of flags) to an FD's existing set of flags into osdep.c for other places to use. Suggested-by: Eric Blake Signed-off-by: Hanna Czenczek --- include/qemu/osdep.h | 1 + block/file-posix.c | 17 +---------------- util/osdep.c | 18 ++++++++++++++++++ 3 files changed, 20 insertions(+), 16 deletions(-) diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h index b384b5b506..f151578b5c 100644 --- a/include/qemu/osdep.h +++ b/include/qemu/osdep.h @@ -633,6 +633,7 @@ int qemu_lock_fd(int fd, int64_t start, int64_t len, bo= ol exclusive); int qemu_unlock_fd(int fd, int64_t start, int64_t len); int qemu_lock_fd_test(int fd, int64_t start, int64_t len, bool exclusive); bool qemu_has_ofd_lock(void); +int qemu_fcntl_addfl(int fd, int flag); #endif =20 bool qemu_has_direct_io(void); diff --git a/block/file-posix.c b/block/file-posix.c index 6265d2e248..e49b13d6ab 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -1056,21 +1056,6 @@ static int raw_handle_perm_lock(BlockDriverState *bs, return ret; } =20 -/* Sets a specific flag */ -static int fcntl_setfl(int fd, int flag) -{ - int flags; - - flags =3D fcntl(fd, F_GETFL); - if (flags =3D=3D -1) { - return -errno; - } - if (fcntl(fd, F_SETFL, flags | flag) =3D=3D -1) { - return -errno; - } - return 0; -} - static int raw_reconfigure_getfd(BlockDriverState *bs, int flags, int *open_flags, uint64_t perm, Error **e= rrp) { @@ -1109,7 +1094,7 @@ static int raw_reconfigure_getfd(BlockDriverState *bs= , int flags, /* dup the original fd */ fd =3D qemu_dup(s->fd); if (fd >=3D 0) { - ret =3D fcntl_setfl(fd, *open_flags); + ret =3D qemu_fcntl_addfl(fd, *open_flags); if (ret) { qemu_close(fd); fd =3D -1; diff --git a/util/osdep.c b/util/osdep.c index 770369831b..000e7daac8 100644 --- a/util/osdep.c +++ b/util/osdep.c @@ -280,6 +280,24 @@ int qemu_lock_fd_test(int fd, int64_t start, int64_t l= en, bool exclusive) return fl.l_type =3D=3D F_UNLCK ? 0 : -EAGAIN; } } + +/** + * Set the given flag(s) (fcntl GETFL/SETFL) on the given FD, while retain= ing + * other flags. + */ +int qemu_fcntl_addfl(int fd, int flag) +{ + int flags; + + flags =3D fcntl(fd, F_GETFL); + if (flags =3D=3D -1) { + return -errno; + } + if (fcntl(fd, F_SETFL, flags | flag) =3D=3D -1) { + return -errno; + } + return 0; +} #endif =20 bool qemu_has_direct_io(void) --=20 2.53.0