He is a member of kernel storage team and has worked in various areas like Overlayfs SELinux support, docker storage, block cgroup controller, IO scheduler, kexec/kdump and secureboot. + unsigned i; + num_in = req->in.numargs - req->in.argpages; + smp_mb__after_atomic(); + req->in.h.len, fuse_len_args(req->out.numargs, req->out.args)); + printk(KERN_ERR "%s: disconnected\n", __func__); +{ + if (!test_bit(FR_ISREPLY, &req->flags)) + if (fs->num_queues == 0) + LIST_HEAD(reqs); VK Goyal. +const static struct fuse_iqueue_ops virtio_fs_fiq_ops = { + spin_lock(&fpq->lock); + /* Use a bounce buffer since stack args cannot be mapped */ + + - fuse_dev_free(fud); /* TODO need to quiesce/end_requests/decrement dev_count */ + +{ + kfree(req->argbuf); + goto out; + virtio_cread(vdev, struct virtio_fs_config, num_queues, + } - fs->fud[i] = fuse_dev_alloc(fc); Vivek Goyal works as a principal software engineer at Red Hat in Westford, MA,USA. + + + +} + C 10 8 docker-mount. + return &fs->vqs[vq->index]; + } + ret = virtio_find_vqs(vdev, fs->nvqs, vqs, callbacks, names, NULL); MBA studies - Wharton - Finance and Business Analytics. + /* matches barrier in request_wait_answer() */ + return i; + total_sgs += req->num_pages; + + unsigned total_sgs = 1 /* fuse_in_header */; + sg_init_one(&sg[out_sgs++], &req->in.h, sizeof(req->in.h)); + fpq = vq_to_fpq(vq); + } + if (ret < 0) + struct virtio_fs *fs) + out_sgs += sg_init_fuse_args(&sg[out_sgs], req, + struct virtio_fs *fs = vq->vdev->priv; 0. + __func__, ret); + return 0; */ Vivek Goyal Red Hat Inc. - if (fs->num_queues == 0) { + for (i = 0; i < fs->nvqs; i++) From: Max Matveev; Re: How to use scripts in crash? + if (!req->argbuf) + ret = -ENOMEM; 2020-2020. + + + num_in = req->in.numargs - req->in.argpages; + } + copy_args_from_argbuf(req); + while ((req = virtqueue_get_buf(vq, &len)) != NULL) + +/* fuse_request_end(fc, req); unsafe due to fc->lock */ + req->argbuf + argbuf_used, NULL); +static int virtio_fs_setup_vqs(struct virtio_device *vdev, + ret = -ENOMEM; Vivek Goyal <> Subject [PATCH 11/15] purgatory: Core purgatory functionality: Date: Thu, 26 Jun 2014 16:33:40 -0400 : Create a stand alone relocatable object purgatory which runs between two kernels. + + bool argpages, Board Memberships & Affiliations. + snprintf(fs->vqs[i].name, sizeof(fs->vqs[i].name), + struct fuse_dev *fud; + struct virtio_fs_vq *fsvq = vq_to_fsvq(vq); Europe/London. + page_descs[i].length, +/* Add args to scatter-gather list and return number of elements used */ Vivek Goyal works as a principal software engineer at Red Hat in Westford, MA,USA. Bachelor's degree - Computer Science. +{ + return total_sgs; Overview ; Projects . From: Vivek Goyal To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: vgoyal@redhat.com, miklos@szeredi.hu, stefanha@redhat.com, dgilbert@redhat.com, sweil@redhat.com, swhiteho@redhat.com Subject: [PATCH 33/52] fuse, dax: Take ->i_mmap_sem lock during dax page fault Date: Mon, 10 Dec 2018 12:12:59 -0500 Message-ID: … + /* Request elements */ + } + req->argbuf = kmalloc(len, GFP_ATOMIC); + names = kmalloc_array(fs->nvqs, sizeof(names[0]), GFP_KERNEL); + vq_callback_t **callbacks; - ret = -EINVAL; + ret = virtio_fs_read_tag(vdev, fs); +/* Virtqueue interrupt handler */ + This name, concept and some code has been taken from kexec-tools. +{ + if (test_bit(FR_ISREPLY, &req->flags)) { + ret = copy_args_to_argbuf(req); + + - goto err_fud; View Vivek Goyal’s profile on LinkedIn, the world’s largest professional community. See the complete profile on LinkedIn and discover Vivek’s connections and jobs at similar companies. + total_sgs += req->num_pages; Wharton. + See the complete profile on LinkedIn and discover Vivek’s connections and jobs at similar companies. + if (!fpq->connected) { + sg_init_one(&sg[total_sgs++], argbuf, len); + fc = fs->vqs[queue_id].fud->fc; + /* TODO zeroing? + if (i == 2) - &fs->num_queues); Co-Chair . + void *argbuf; +/* Per-virtqueue state */ +/* Add pages to scatter-gather list and return number of elements used */ + spin_lock(&fpq->lock); + + /* Initialize the requests virtqueues */ +static void copy_args_from_argbuf(struct fuse_req *req) + .wake_interrupt_and_unlock = virtio_fs_wake_interrupt_and_unlock, IIT Delhi. - struct fuse_dev *fud = fs->fud[i]; - if (fud) Vivek has presented block IO controller at LSF/MM, + + + unsigned len; - Vitaly Kuznetsov & Vivek Goyal, Red Hat KVM Theater . +{ An electronics and communication engineer from Institute of technology, B.H.U, Varanasi, India, he has spent time in developing and maintaining Kexec/Kdump and relocatable kernel for x86 arch. + return; +{ + if (len_used) + unsigned nvqs; /* number of virtqueues */ From: Vivek Goyal To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: vgoyal@redhat.com, miklos@szeredi.hu, stefanha@redhat.com, dgilbert@redhat.com, sweil@redhat.com, swhiteho@redhat.com Subject: [PATCH 09/52] fuse: process requests queues Date: Mon, 10 Dec 2018 12:12:35 -0500 Message-ID: <20181210171318.16998-10 … + struct page **pages, + +} ____cacheline_aligned_in_smp; + schedule_work(&fsvq->done_work); + fuse_len_args(num_out, req->out.args); + set_bit(FR_SENT, &req->flags); Vivek Goyal's articles on arXiv [1] arXiv:1901.09702 [pdf, other] Title: Reduced damage in electron microscopy by using interaction-free measurement and conditional re-illumination Authors: Akshay Agarwal, Karl K. Berggren, Vivek Goyal. + + + printk(KERN_ERR "%s: virtio_fs_enqueue_req failed %d\n", +static void virtio_fs_notifications_done_work(struct work_struct *work) + } + struct fuse_page_desc *page_descs, + Vivek has 8 jobs listed on their profile. +, @@ -71,18 +92,17 @@ static void virtio_fs_free_devs(struct virtio_fs *fs). + if (!fs->vqs) + + clear_bit(FR_PENDING, &req->flags); +} + struct virtqueue *vq; /* protected by fpq->lock */ - struct fuse_dev **fud; /* 1:1 mapping with request queues */ From: Vivek Goyal To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: vgoyal@redhat.com, miklos@szeredi.hu, stefanha@redhat.com, dgilbert@redhat.com, sweil@redhat.com, swhiteho@redhat.com Subject: [PATCH 18/52] virtio-fs: Map cache using the values from the capabilities Date: Mon, 10 Dec 2018 12:12:44 -0500 Message-ID: … + Education. + unsigned offset = 0; + + num_out = req->out.numargs - req->out.argpages; + /* TODO */ + unsigned total_sgs; 2015-2018. Hometown's. + spin_lock(&fpq->lock); MANGALAM CEMENT LTD (Birla Uttam ) 2015-2018. + offset = fuse_len_args(num_in, (struct fuse_arg *)req->in.args); + + /* TODO check for FR_INTERRUPTED? - unsigned int num_queues; + struct virtio_fs_vq *vqs; There are 400+ professionals named "Vivek Goyal", who use LinkedIn to exchange information, ideas, and opportunities. + offset += argsize; + /* Does the sglist fit on the stack? +static unsigned sg_count_fuse_req(struct fuse_req *req) + list_move_tail(&req->list, &reqs); + + /* TODO handle full virtqueue */ + struct virtqueue *vq = fsvq->vq; +static void virtio_fs_wake_pending_and_unlock(struct fuse_iqueue *fiq) +{ +static int copy_args_to_argbuf(struct fuse_req *req) + /* TODO */ + ret = virtqueue_add_sgs(vq, sgs, out_sgs, in_sgs, req, GFP_ATOMIC); + /* Reply elements */ +{ + It can lead to system hang when throttling is being used. + + unsigned len; + notify = virtqueue_kick_prepare(vq); + kfree(callbacks); Red Hat Inc. 2007-2019. + req->num_pages); + return &vq_to_fsvq(vq)->fud->pq; + dev_dbg(&fs->vqs[queue_id].vq->vdev->dev, + struct virtqueue **vqs; + struct virtio_fs *fs; --- Additional comment from Vivek Goyal on 2016-11-01 17:16:23 EDT --- Lokesh, we will require similar changes for fedora package too. + /* TODO check unique */ - err = -ENOMEM; + virtqueue_disable_cb(vq); + len = fuse_len_args(num_in, (struct fuse_arg *)req->in.args) + +/* Copy args out of and free req->argbuf */ + /* TODO put request onto fpq->io list? 0 Forks . +static void virtio_fs_cleanup_vqs(struct virtio_device *vdev, +static void virtio_fs_vq_done(struct virtqueue *vq) + for (i = 0; i < num_in; i++) { + Manager. + (struct fuse_arg *)req->in.args, + struct virtio_fs_vq *fsvq = &fs->vqs[i]; Red Hat Product Errata RHSA-2011:0542: normal SHIPPED_LIVE Important: Red Hat Enterprise Linux 6.1 kernel security, bug fix and enhancement update 2011-05-19 11:58:07 UTC Description Vivek Goyal 2011-03-01 22:29:14 UTC Description of problem: Currently throttle logic uses kblockd workqueue to queue up throttle work. + +/* Free virtqueues (device must already be reset) */ @@ -220,30 +682,35 @@ static int virtio_fs_fill_super(struct super_block *sb, void *data, - fs->fud = kcalloc(fs->num_queues, sizeof(fs->fud[0]), GFP_KERNEL); He is currently Professor of Electrical and Computer Engineering at Boston University (BU). + vdev->config->reset(vdev); +} +{ +, - struct list_head list; /* on virtio_fs_instances */, + struct list_head list; /* on virtio_fs_instances */. + req->in.numargs, req->in.argpages, Issues Created issues #50 … +__releases(fiq->waitq.lock) + + "requests.%u", i - 2); + unsigned i; + &fs->num_queues); + .wake_forget_and_unlock = virtio_fs_wake_forget_and_unlock, Red Hat Inc. Overview Repositories Projects Popular repositories misc. + unsigned argbuf_used = 0; + num_out = req->out.numargs - req->out.argpages; +/* Return the number of scatter-gather list elements required */ + continue; /* already initialized */ + + INIT_WORK(&fs->vqs[i].done_work, virtio_fs_requests_done_work); + names[1] = fs->vqs[1].name; + struct fuse_pqueue *fpq; +} + list_del_init(&req->list); + if (req->in.numargs - req->in.argpages) + callbacks[1] = virtio_fs_vq_done; + + fs->vqs[i].vq = vqs[i]; + } + struct fuse_req *req, + fpq = &fs->vqs[queue_id].fud->pq; +struct virtio_fs_vq { + struct virtio_fs_vq *fsvq = &fs->vqs[i]; - for (i = 0; i < fs->num_queues; i++) { 0 Groups . Sort by citations Sort by year Sort by title. From: Rabin Vincent; Re: How to use scripts in crash? + ret = virtio_fs_enqueue_req(fs->vqs[queue_id].vq, req); +__releases(fiq->waitq.lock) + struct virtio_fs *fs) + + struct fuse_arg *args, Actual results: Expected results: Additional info: --- Additional comment from Vivek Goyal on 2016-11-01 17:14:04 EDT --- Hi Lokesh, Could you please take care of changing spec file for docker-storage-setup. +/* Work function for request completion */ Idea is that this code runs after a crash and it runs in minimal environment. + struct fuse_pqueue *fpq; + struct scatterlist *stack_sgs[6 /* requests need at least 4 elements */]; + virtio_fs_cleanup_vqs(vdev, fs); + unsigned num_in; + sgs = kmalloc_array(total_sgs, sizeof(sgs[0]), GFP_ATOMIC); + unsigned *len_used) + + + sg_init_one(&sg[out_sgs + in_sgs++], + in_sgs += sg_init_fuse_args(&sg[out_sgs + in_sgs], req, + } He has been interested in virtual filesystems for a long time, starting several open source projects including Filesystem in Userspace (FUSE) and the Overlay Filesystem.Prior to joining Red Hat, he has worked at SUSE Labs... Thursday March 23, 2017 4:25pm - 5:15pm EDT, Overlayfs And Containers - Vivek Goyal & Miklos Szeredi, Red Hat. + if (req->out.argvar) Vivek Goyal <> Subject [PATCH 07/11] kexec: Create a relocatable object called purgatory: Date: Mon, 27 Jan 2014 13:57:47 -0500: Create a stand alone relocatable object purgatory which runs between two kernels. + total_sgs += 1; + + fsvq->fud = fuse_dev_alloc(fc); + goto out; Wednesday, October 28; Thursday, October 29; Friday, October 30; Filter By Venue Venues. +static unsigned sg_init_fuse_pages(struct scatterlist *sg, + /* TODO */ +{ + memcpy(req->out.args[i].value, req->argbuf + offset, argsize); + list_for_each_entry_safe(req, next, &reqs, list) { + /* End requests */ + const char **names; +} +}; + + struct virtio_fs_vq *fsvq = container_of(work, struct virtio_fs_vq, + kfree(vqs); +__releases(fiq->waitq.lock) + * virtqueue races since they haven't been set up yet! Idea is that this code runs after a crash and it runs in minimal environment. + __func__); [PATCH 09/52] fuse: process requests queues, [PATCH 00/52] [RFC] virtio-fs: shared file system for virtual machines, [PATCH 01/52] fuse: add skeleton virtio_fs.ko module, [PATCH 02/52] fuse: add probe/remove virtio driver, [PATCH 03/52] fuse: rely on mutex_unlock() barrier instead of fput(), [PATCH 04/52] fuse: extract fuse_fill_super_common(), [PATCH 05/52] virtio_fs: get mount working, [PATCH 06/52] fuse: export fuse_end_request(), [PATCH 07/52] fuse: export fuse_len_args(), [PATCH 08/52] fuse: add fuse_iqueue_ops callbacks, [PATCH 10/52] fuse: export fuse_get_unique(), [PATCH 11/52] fuse: implement FUSE_FORGET for virtio-fs, [PATCH 12/52] virtio_fs: Set up dax_device, [PATCH 13/52] dax: remove block device dependencies, [PATCH 14/52] fuse: add fuse_conn->dax_dev field, [PATCH 15/52] fuse: map virtio_fs DAX window BAR, [PATCH 16/52] virtio-fs: Add VIRTIO_PCI_CAP_SHARED_MEMORY_CFG and utility to find them, [PATCH] virtio-fs: fix semicolon.cocci warnings, [PATCH 17/52] virtio-fs: Retrieve shm capabilities for cache, [PATCH 18/52] virtio-fs: Map cache using the values from the capabilities, [PATCH] virtio-fs: fix multiple tag support, [PATCH 19/52] virito-fs: Make dax optional, [PATCH 20/52] Limit number of pages returned by direct_access(), [PATCH 21/52] fuse: Introduce fuse_dax_mapping, [PATCH 22/52] Create a list of free memory ranges, [PATCH 23/52] fuse: simplify fuse_fill_super_common() calling, [PATCH 24/52] fuse: Introduce setupmapping/removemapping commands, [PATCH 25/52] Introduce interval tree basic data structures, [PATCH 26/52] fuse: Implement basic DAX read/write support commands, [PATCH 27/52] fuse: Maintain a list of busy elements, [PATCH 28/52] Do fallocate() to grow file before mapping for file growing writes, [PATCH 30/52] fuse: delete dentry if timeout is zero, [PATCH 31/52] dax: Pass dax_dev to dax_writeback_mapping_range(), [PATCH 32/52] fuse: Define dax address space operations, [PATCH 33/52] fuse, dax: Take ->i_mmap_sem lock during dax page fault, [PATCH 34/52] fuse: Add logic to free up a memory range, [PATCH 35/52] fuse: Add logic to do direct reclaim of memory, [PATCH 36/52] fuse: Kick worker when free memory drops below 20% of total ranges, [PATCH 37/52] fuse: multiplex cached/direct_io/dax file operations, [PATCH 38/52] Dispatch FORGET requests later instead of dropping them, [PATCH 39/52] Release file in process context, [PATCH 40/52] fuse: Do not block on inode lock while freeing memory range, [PATCH 41/52] fuse: Reschedule dax free work if too many EAGAIN attempts, [PATCH 42/52] fuse: Wait for memory ranges to become free, [PATCH 43/52] fuse: Take inode lock for dax inode truncation, [PATCH 44/52] fuse: Clear setuid bit even in direct I/O path, [PATCH 45/52] virtio: Free fuse devices on umount, [PATCH 46/52] virtio-fs: Retrieve shm capabilities for version table, [PATCH 47/52] virtio-fs: Map using the values from the capabilities, [PATCH 48/52] virtio-fs: pass version table pointer to fuse, [PATCH 49/52] fuse: don't crash if version table is NULL, [PATCH 50/52] fuse: add shared version support (virtio-fs only), [PATCH 51/52] fuse: shared version cleanups, [PATCH 52/52] fuse: fix fuse_permission() for the default_permissions case, https://en.wikipedia.org/wiki/Posting_style#Interleaved_style, https://kernel.org/pub/software/scm/git/docs/git-send-email.html, nntp://nntp.lore.kernel.org/org.kernel.vger.linux-kernel, https://public-inbox.org/public-inbox.git. - Vitaly Kuznetsov & Vivek Goyal, Red Hat + spin_unlock(&fiq->waitq.lock); … +} + struct fuse_req *req; + unsigned num_queues; /* number of request queues */, +static inline struct virtio_fs_vq *vq_to_fsvq(struct virtqueue *vq) + if (total_sgs > ARRAY_SIZE(stack_sgs)) { + argsize > remaining) { + + Comment 8 Vivek Goyal 2017-06-08 18:42:36 UTC Good point Ed. + for (i = 0; i < total_sgs; i++) + if (ret < 0) + /** virtio-fs's physically contiguous buffer for in and out args */ + + memcpy(req->argbuf + offset, Vivek Goyal <> Subject [PATCH 09/13] purgatory: Core purgatory functionality: Date: Tue, 3 Jun 2014 09:06:58 -0400: Create a stand alone relocatable object purgatory which runs between two kernels. + if (len) + */ + + sg_init_table(&sg[i], 1); + if (ret < 0) { + + + kfree(req->argbuf); + + sgs[i] = &sg[i]; + spin_unlock(&fpq->lock); + req->page_descs, Filter By Date KVM Forum 2020 Oct 28-30, 2020. Long Live Asynchronous Page Fault! + if (!vqs || !callbacks || !names) { + req = list_last_entry(&fiq->pending, struct fuse_req, list); + if (argpages) + spin_unlock(&fpq->lock); + fs->vqs = devm_kcalloc(&vdev->dev, fs->nvqs, sizeof(fs->vqs[0]), + /* Bring the device online in case the filesystem is mounted and From: Vivek Goyal To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: vgoyal@redhat.com, miklos@szeredi.hu, stefanha@redhat.com, dgilbert@redhat.com, sweil@redhat.com, swhiteho@redhat.com Subject: [PATCH 50/52] fuse: add shared version support (virtio-fs only) Date: Mon, 10 Dec 2018 12:13:16 -0500 Message-ID: … + if (req->out.numargs - req->out.argpages) + req->argbuf, &argbuf_used); +, +out_vqs: + + req->argbuf = NULL; + } + GFP_KERNEL); + struct fuse_pqueue *fpq = &fsvq->fud->pq; + kfree(sg); + unsigned out_sgs = 0; + + struct fuse_req *next; + offset += req->in.args[i].size; Sort . + dev_dbg(&vq->vdev->dev, "%s %s\n", __func__, fsvq->name); +{ + int ret; + names[i] = fs->vqs[i].name; +/* fuse_request_end(fc, req); unsafe due to fc->lock */ View Vivek Goyal’s profile on LinkedIn, the world's largest professional community. + vqs = kmalloc_array(fs->nvqs, sizeof(vqs[0]), GFP_KERNEL); + + /* TODO fuse_len_args(out) against oh.len */ + Cited by. View Colleagues. + Vivek K Goyal is an American engineering professor, author, and inventor. + remaining -= argsize; + for (i = 0; i < num_out; i++) { +{ + +static void virtio_fs_hiprio_done(struct virtqueue *vq) + struct fuse_conn *fc; +} + req->out.args[req->out.numargs - 1].size = remaining; + return -EINVAL; +static int virtio_fs_enqueue_req(struct virtqueue *vq, struct fuse_req *req) - err = fuse_fill_super_common(sb, &d, (void **)&fs->fud[0]); + /* TODO this sends FUSE_INIT and could cause hiprio or notifications + if (req->out.argpages) + sg_set_page(&sg[i], pages[i], +} + for (i = 0; i < num_pages; i++) { + if (notify) Wharton Investment Management Club. + "%s: opcode %u unique %#llx nodeid %#llx in.len %u out.len %u\n", +{ + Lokesh, we probably need to fix it. + unsigned remaining; + do { + spin_unlock(&fiq->waitq.lock); + unsigned num_in; + for (i = 2; i < fs->nvqs; i++) { +, @@ -119,23 +343,32 @@ static int virtio_fs_probe(struct virtio_device *vdev). Vivek K Goyal. View Vivek Goyal's full profile. + total_sgs += 1; + struct fuse_conn *fc = fsvq->fud->fc; Cited by. + req->out.args, req->out.numargs, + spin_unlock(&fpq->lock); Year; Multiple description coding: Compression meets the network. +static unsigned sg_init_fuse_args(struct scatterlist *sg, + return ret; + err = fuse_fill_super_common(sb, &d, &virtio_fs_fiq_ops, fs, + unsigned total_sgs = 0; + Signal Processing Computational Imaging Mathematical Signal Processing Quantization. + struct scatterlist **sgs = stack_sgs; +{ + if (req->out.argvar && + + callbacks[i] = virtio_fs_vq_done; docker-storage-setup tries to extend lv with no extents and fails causing docker to fail. + + snprintf(fs->vqs[0].name, sizeof(fs->vqs[0].name), "notifications"); + return -ENOMEM; + unsigned i; + + unsigned numargs, + snprintf(fs->vqs[1].name, sizeof(fs->vqs[1].name), "hiprio"); + req->pages, + BUG_ON(!list_empty(&fiq->pending)); Vivek Goyal. + unsigned argsize = req->out.args[i].size; + He was named Fellow of the Institute of Electrical and Electronics Engineers (IEEE) in 2014 for contributions to information representations and their applications in acquisition, communication, and estimation. + spin_lock(&fpq->lock); + + *len_used = len; + + goto out; + len = fuse_len_args(numargs - argpages, args); + INIT_WORK(&fs->vqs[0].done_work, virtio_fs_notifications_done_work); From: Vivek Goyal To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: vgoyal@redhat.com, miklos@szeredi.hu, stefanha@redhat.com, dgilbert@redhat.com, sweil@redhat.com, swhiteho@redhat.com Subject: [PATCH 00/52] [RFC] virtio-fs: shared file system for virtual machines Date: Mon, 10 Dec 2018 12:12:26 -0500 Message-ID: … + if (!sgs || !sg) { + virtio_device_ready(vdev); Red Hat Product Errata RHSA-2011:1532: normal SHIPPED_LIVE Moderate: kexec-tools security, bug fix, and enhancement update 2011-12-06 01:01:52 UTC Description Vivek Goyal 2011-07-25 15:32:34 UTC Description of problem: Using nr_cpus=1 for kdump kenrel saves memory required in second kernel. This name, concept and some code has been taken from kexec-tools. Senior Developer. + if (!fsvq->fud) {. + req->argbuf = NULL; Start using that for x86 and x86_64. + + + char name[24]; +} Articles Cited by Co-authors. + + vdev->config->del_vqs(vdev); - if (!fs->fud) { + req->out.h.error = -ENODEV; +static void virtio_fs_requests_done_work(struct work_struct *work) + spin_unlock(&fpq->lock); - virtio_cread(vdev, struct virtio_fs_config, num_queues, + callbacks = kmalloc_array(fs->nvqs, sizeof(callbacks[0]), GFP_KERNEL); + return -ENOMEM; + return ret; +} + /* TODO populate notifications vq */ Verified email at bu.edu - Homepage. Timezone KVM Forum 2020. */ + */ + + - if (!fs->fud[i]) {, + for (i = 0; i < fs->nvqs; i++) { Long Live Asynchronous Page Fault! +{ +} +} +static inline struct fuse_pqueue *vq_to_fpq(struct virtqueue *vq) + callbacks[0] = virtio_fs_notifications_done; + struct scatterlist stack_sg[ARRAY_SIZE(stack_sgs)]; + int ret; + return total_sgs; + clear_bit(FR_SENT, &req->flags); + } + void *argbuf, + sg = kmalloc_array(total_sgs, sizeof(sg[0]), GFP_ATOMIC); - }, + fuse_dev_free(fsvq->fud); /* TODO need to quiesce/end_requests/decrement dev_count */ + + /* TODO */ +/* Allocate and copy args into req->argbuf */ , Red Hat Inc. Overview Repositories Projects Popular Repositories misc - Lokesh, we will require similar changes for package... And it runs in minimal environment comment 8 Vivek Goyal works as a software. Vivek Goyal works as a kernel developer at RedHat in Westford, MA USA... Discover Vivek ’ s connections and jobs at similar companies Good point Ed ( BU ), author and... Jobs at similar companies and fails causing docker to fail at this year 's Red Bull Basement,! - Wharton - Finance and Business Analytics Issues ; Pull Requests ; Issues for vgoyal Open Closed All meets... And jobs at similar companies for vgoyal Open Closed All similar companies when auto-extend is set being used largest community! Goyal '' on LinkedIn and discover Vivek ’ s connections and jobs at similar companies been taken kexec-tools. Red Bull Basement Goyal 2017-06-08 18:42:36 UTC Good point Ed Vitaly Kuznetsov & Vivek works... Ideas, and opportunities Hat crash Utility Thread Index [ PATCH ] foreach filter on state Matveev Re. Use LinkedIn to exchange information, ideas, and inventor citations Sort title. See the complete profile on LinkedIn 's Red Bull Basement Goyal, Red Hat crash Utility Thread Index PATCH! Red Bull Basement that this code runs after a crash and it in!, October 29 ; Friday, October 29 ; Friday, October 29 ; Friday October... Wharton - Finance and Business Analytics LinkedIn to exchange information, ideas, and inventor, world. Is set as a principal software engineer at Red Hat in Westford, MA, USA information! Engineering at Boston University ( BU ) at similar companies: How to use in. October 30 ; filter by Date KVM Forum 2020 Oct 28-30, 2020 Vivek Goyal ’ s and... Requests ; Issues for vgoyal Open Closed All, 2020 LinkedIn to exchange information, ideas, and inventor the! Studies - Wharton - Finance and Business Analytics this name, concept and some code has been from. Is that this code runs after a crash and it runs in minimal environment profiles of named... Finance and Business Analytics in crash with no extents and fails causing to! Bu ) when throttling is being used crash and it runs in minimal environment October 29 ; Friday, 28. Code runs after a crash and it runs in minimal environment runs after a crash and it runs in environment! 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Professional community - Finance and Business Analytics and journalist Vivek Gohil is a speaker at this 's. Docker-Storage-Setup tries to extend lv with no extents and fails causing docker fail... A crash and it runs in minimal environment Computer engineering at Boston University ( BU.... '' on LinkedIn and discover Vivek ’ s connections and jobs at similar companies on! '', who use LinkedIn to exchange information, ideas, and opportunities citations Sort by year Sort citations! Thursday, October 29 ; Friday, October 30 ; filter by Venue Venues,... Hat KVM Theater taken from kexec-tools Requests ; Issues for vgoyal Open Closed All and Computer engineering at University!

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