From: Sasha Levin <sashal@kernel.org> To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Mike Christie <michael.christie@oracle.com>, "Michael S . Tsirkin" <mst@redhat.com>, Jason Wang <jasowang@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, Sasha Levin <sashal@kernel.org>, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 5.9 19/33] vhost: add helper to check if a vq has been setup Date: Wed, 25 Nov 2020 10:35:36 -0500 [thread overview] Message-ID: <20201125153550.810101-19-sashal@kernel.org> (raw) In-Reply-To: <20201125153550.810101-1-sashal@kernel.org> From: Mike Christie <michael.christie@oracle.com> [ Upstream commit 6bcf34224ac1e94103797fd68b9836061762f2b2 ] This adds a helper check if a vq has been setup. The next patches will use this when we move the vhost scsi cmd preallocation from per session to per vq. In the per vq case, we only want to allocate cmds for vqs that have actually been setup and not for all the possible vqs. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/1604986403-4931-2-git-send-email-michael.christie@oracle.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/vhost/vhost.c | 6 ++++++ drivers/vhost/vhost.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 9ad45e1d27f0f..23e7b2d624511 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -305,6 +305,12 @@ static void vhost_vring_call_reset(struct vhost_vring_call *call_ctx) spin_lock_init(&call_ctx->ctx_lock); } +bool vhost_vq_is_setup(struct vhost_virtqueue *vq) +{ + return vq->avail && vq->desc && vq->used && vhost_vq_access_ok(vq); +} +EXPORT_SYMBOL_GPL(vhost_vq_is_setup); + static void vhost_vq_reset(struct vhost_dev *dev, struct vhost_virtqueue *vq) { diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 9032d3c2a9f48..3d30b3da7bcf5 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -190,6 +190,7 @@ int vhost_get_vq_desc(struct vhost_virtqueue *, struct vhost_log *log, unsigned int *log_num); void vhost_discard_vq_desc(struct vhost_virtqueue *, int n); +bool vhost_vq_is_setup(struct vhost_virtqueue *vq); int vhost_vq_init_access(struct vhost_virtqueue *); int vhost_add_used(struct vhost_virtqueue *, unsigned int head, int len); int vhost_add_used_n(struct vhost_virtqueue *, struct vring_used_elem *heads, -- 2.27.0
WARNING: multiple messages have this Message-ID (diff)
From: Sasha Levin <sashal@kernel.org> To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Sasha Levin <sashal@kernel.org>, kvm@vger.kernel.org, "Michael S . Tsirkin" <mst@redhat.com>, netdev@vger.kernel.org, virtualization@lists.linux-foundation.org, Stefan Hajnoczi <stefanha@redhat.com>, Mike Christie <michael.christie@oracle.com> Subject: [PATCH AUTOSEL 5.9 19/33] vhost: add helper to check if a vq has been setup Date: Wed, 25 Nov 2020 10:35:36 -0500 [thread overview] Message-ID: <20201125153550.810101-19-sashal@kernel.org> (raw) In-Reply-To: <20201125153550.810101-1-sashal@kernel.org> From: Mike Christie <michael.christie@oracle.com> [ Upstream commit 6bcf34224ac1e94103797fd68b9836061762f2b2 ] This adds a helper check if a vq has been setup. The next patches will use this when we move the vhost scsi cmd preallocation from per session to per vq. In the per vq case, we only want to allocate cmds for vqs that have actually been setup and not for all the possible vqs. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/1604986403-4931-2-git-send-email-michael.christie@oracle.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/vhost/vhost.c | 6 ++++++ drivers/vhost/vhost.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 9ad45e1d27f0f..23e7b2d624511 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -305,6 +305,12 @@ static void vhost_vring_call_reset(struct vhost_vring_call *call_ctx) spin_lock_init(&call_ctx->ctx_lock); } +bool vhost_vq_is_setup(struct vhost_virtqueue *vq) +{ + return vq->avail && vq->desc && vq->used && vhost_vq_access_ok(vq); +} +EXPORT_SYMBOL_GPL(vhost_vq_is_setup); + static void vhost_vq_reset(struct vhost_dev *dev, struct vhost_virtqueue *vq) { diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 9032d3c2a9f48..3d30b3da7bcf5 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -190,6 +190,7 @@ int vhost_get_vq_desc(struct vhost_virtqueue *, struct vhost_log *log, unsigned int *log_num); void vhost_discard_vq_desc(struct vhost_virtqueue *, int n); +bool vhost_vq_is_setup(struct vhost_virtqueue *vq); int vhost_vq_init_access(struct vhost_virtqueue *); int vhost_add_used(struct vhost_virtqueue *, unsigned int head, int len); int vhost_add_used_n(struct vhost_virtqueue *, struct vring_used_elem *heads, -- 2.27.0 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
next prev parent reply other threads:[~2020-11-25 15:36 UTC|newest] Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-11-25 15:35 [PATCH AUTOSEL 5.9 01/33] HID: uclogic: Add ID for Trust Flex Design Tablet Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 02/33] HID: ite: Replace ABS_MISC 120/121 events with touchpad on/off keypresses Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 03/33] HID: cypress: Support Varmilo Keyboards' media hotkeys Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 04/33] HID: add support for Sega Saturn Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 05/33] Input: i8042 - allow insmod to succeed on devices without an i8042 controller Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 06/33] HID: hid-sensor-hub: Fix issue with devices with no report ID Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 07/33] staging: ralink-gdma: fix kconfig dependency bug for DMA_RALINK Sasha Levin 2020-11-25 15:35 ` Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 08/33] HID: add HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE for Gamevice devices Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 09/33] dmaengine: xilinx_dma: use readl_poll_timeout_atomic variant Sasha Levin 2020-11-25 15:35 ` Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 10/33] x86/xen: don't unbind uninitialized lock_kicker_irq Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 11/33] kunit: fix display of failed expectations for strings Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 12/33] HID: logitech-hidpp: Add HIDPP_CONSUMER_VENDOR_KEYS quirk for the Dinovo Edge Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 13/33] HID: Add Logitech Dinovo Edge battery quirk Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 14/33] proc: don't allow async path resolution of /proc/self components Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 15/33] nvme: free sq/cq dbbuf pointers when dbbuf set fails Sasha Levin 2020-11-25 15:35 ` Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 16/33] io_uring: handle -EOPNOTSUPP on path resolution Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 17/33] net: stmmac: dwmac_lib: enlarge dma reset timeout Sasha Levin 2020-11-25 15:35 ` Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 18/33] vdpasim: fix "mac_pton" undefined error Sasha Levin 2020-11-25 15:35 ` Sasha Levin 2020-11-25 15:35 ` Sasha Levin [this message] 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 19/33] vhost: add helper to check if a vq has been setup Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 20/33] vhost scsi: alloc cmds per vq instead of session Sasha Levin 2020-11-25 15:35 ` Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 21/33] vhost scsi: fix cmd completion race Sasha Levin 2020-11-25 15:35 ` Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 22/33] vhost scsi: add lun parser helper Sasha Levin 2020-11-25 15:35 ` Sasha Levin 2020-11-25 17:48 ` Paolo Bonzini 2020-11-25 17:48 ` Paolo Bonzini 2020-11-25 18:01 ` Sasha Levin 2020-11-25 18:01 ` Sasha Levin 2020-11-25 18:08 ` Paolo Bonzini 2020-11-25 18:08 ` Paolo Bonzini 2020-11-29 4:13 ` Sasha Levin 2020-11-29 4:13 ` Sasha Levin 2020-11-29 17:34 ` Paolo Bonzini 2020-11-29 17:34 ` Paolo Bonzini 2020-11-29 21:06 ` Sasha Levin 2020-11-29 21:06 ` Sasha Levin 2020-11-30 8:33 ` Paolo Bonzini 2020-11-30 8:33 ` Paolo Bonzini 2020-11-30 13:28 ` Greg KH 2020-11-30 13:28 ` Greg KH 2020-11-30 13:52 ` Paolo Bonzini 2020-11-30 13:52 ` Paolo Bonzini 2020-11-30 13:57 ` Greg KH 2020-11-30 13:57 ` Greg KH 2020-11-30 14:00 ` Paolo Bonzini 2020-11-30 14:00 ` Paolo Bonzini 2020-11-30 17:34 ` Sasha Levin 2020-11-30 17:34 ` Sasha Levin 2020-11-30 17:38 ` Sasha Levin 2020-11-30 17:38 ` Sasha Levin 2020-11-30 17:52 ` Paolo Bonzini 2020-11-30 17:52 ` Paolo Bonzini 2020-11-30 19:44 ` Mike Christie 2020-11-30 20:29 ` Paolo Bonzini 2020-11-30 20:29 ` Paolo Bonzini 2020-11-30 23:59 ` Sasha Levin 2020-11-30 23:59 ` Sasha Levin 2020-12-04 8:27 ` Paolo Bonzini 2020-12-04 8:27 ` Paolo Bonzini 2020-12-04 15:49 ` Sasha Levin 2020-12-04 15:49 ` Sasha Levin 2020-12-04 16:12 ` Joe Perches 2020-12-04 16:12 ` Joe Perches 2020-12-04 17:08 ` Paolo Bonzini 2020-12-04 17:08 ` Paolo Bonzini 2020-12-05 20:59 ` Sasha Levin 2020-12-05 20:59 ` Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 23/33] vhost scsi: Add support for LUN resets Sasha Levin 2020-11-25 15:35 ` Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 24/33] cpuidle: tegra: Annotate tegra_pm_set_cpu_in_lp2() with RCU_NONIDLE Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 25/33] dmaengine: pl330: _prep_dma_memcpy: Fix wrong burst size Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 26/33] scsi: libiscsi: Fix NOP race condition Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 27/33] scsi: target: iscsi: Fix cmd abort fabric stop race Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 28/33] lockdep: Put graph lock/unlock under lock_recursion protection Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 29/33] perf/x86: fix sysfs type mismatches Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 30/33] xtensa: uaccess: Add missing __user to strncpy_from_user() prototype Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 31/33] x86/dumpstack: Do not try to access user space code of other tasks Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 32/33] net: dsa: mv88e6xxx: Wait for EEPROM done after HW reset Sasha Levin 2020-11-25 15:35 ` [PATCH AUTOSEL 5.9 33/33] xfs: don't allow NOWAIT DIO across extent boundaries Sasha Levin 2020-11-25 21:52 ` Dave Chinner 2020-11-25 23:46 ` Sasha Levin 2020-11-26 7:13 ` Dave Chinner
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20201125153550.810101-19-sashal@kernel.org \ --to=sashal@kernel.org \ --cc=jasowang@redhat.com \ --cc=kvm@vger.kernel.org \ --cc=linux-kernel@vger.kernel.org \ --cc=michael.christie@oracle.com \ --cc=mst@redhat.com \ --cc=netdev@vger.kernel.org \ --cc=stable@vger.kernel.org \ --cc=stefanha@redhat.com \ --cc=virtualization@lists.linux-foundation.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.