search for: drop_lock

...struct_from_file(vmf->vma->vm_file); ... again: hmm_range_register(&range); hmm_range_snapshot(&range); take_lock(kvmms->update); if (!hmm_range_valid(&range)) { vm_insert_pfn(); drop_lock(kvmms->update); hmm_range_unregister(&range); return VM_FAULT_NOPAGE; } drop_lock(kvmms->update); goto again; } The notifier callback: kvmms_notifier_start() { take_lock(kvmms->update);...

...ap->start, cmap->green, - cmap->len * sizeof(u16)); - memcpy(b + cmap->start, cmap->blue, - cmap->len * sizeof(u16)); + crtc = fb_helper->crtc_info[i].mode_set.crtc; + if (!crtc->funcs->gamma_set || !crtc->gamma_size) { + ret = -EINVAL; + goto drop_locks; } - for (j = 0; j < cmap->len; j++) { - u16 hred, hgreen, hblue, htransp = 0xffff; + if (cmap->start + cmap->len > crtc->gamma_size) { + ret = -EINVAL; + goto drop_locks; + } - hred = *red++; - hgreen = *green++; - hblue = *blue++; + r = crtc->gamma_sto...

...); > ... > again: > hmm_range_register(&range); > hmm_range_snapshot(&range); > take_lock(kvmms->update); > if (!hmm_range_valid(&range)) { > vm_insert_pfn(); > drop_lock(kvmms->update); > hmm_range_unregister(&range); > return VM_FAULT_NOPAGE; > } > drop_lock(kvmms->update); > goto again; > } > > The notifier callback: > kvmms_notifier_start() {...

...); > ... > again: > hmm_range_register(&range); > hmm_range_snapshot(&range); > take_lock(kvmms->update); > if (!hmm_range_valid(&range)) { > vm_insert_pfn(); > drop_lock(kvmms->update); > hmm_range_unregister(&range); > return VM_FAULT_NOPAGE; > } > drop_lock(kvmms->update); > goto again; > } > > The notifier callback: > kvmms_notifier_start() {...

...c_funcs->load_lut(crtc); + ret = crtc->funcs->gamma_set(crtc, r, g, b, + crtc->gamma_size, &ctx); + if (ret) + break; } - out: - drm_modeset_unlock_all(dev); - return rc; +out: + if (ret == -EDEADLK) { + drm_modeset_backoff(&ctx); + goto retry; + } + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); + + return ret; } EXPORT_SYMBOL(drm_fb_helper_setcmap); -- 2.1.4

...uct *kvmms = from_mmun(...); unsigned long target_foff, size; size = end - start; target_foff = kvmms_convert_mirror_address(start); take_lock(kvmms->mirror_fault_exclusion_lock); unmap_mapping_range(kvmms->address_space, target_foff, size, 1); drop_lock(kvmms->mirror_fault_exclusion_lock); } All that is needed is to make sure that vm_normal_page() will see those pte (inside the process that is mirroring the other process) as special which is the case either because insert_pfn() mark the pte as special or the kvm device driver which control...

Hi Benjamin: I think that the following link will give you an idea for what you need to know: http://www.cisco.com/warp/customer/620/roadmap_b.shtml This is for the naming: http://www.cisco.com/en/US/products/sw/iosswrel/ps1818/products_tech_note09186a0080101cda.shtml In this case 11.1CC goes to 12.0T and 12.0T migrate to 12.1 mainline. Do not you worry you will not loose anything with the new

From: Mircea C?rjaliu <mcirjaliu at bitdefender.com> The following two new mm exports are introduced: * mm_remote_map(struct mm_struct *req_mm, unsigned long req_hva, unsigned long map_hva) * mm_remote_unmap(unsigned long map_hva) * mm_remote_reset(void) * rmap_walk_remote(struct page *page, struct rmap_walk_control *rwc) This patch

On 02/10/19 19:04, Jerome Glisse wrote: > On Wed, Oct 02, 2019 at 06:18:06PM +0200, Paolo Bonzini wrote: >>>> If the mapping of the source VMA changes, mirroring can update the >>>> target VMA via insert_pfn. But what ensures that KVM's MMU notifier >>>> dismantles its own existing page tables (so that they can be recreated >>>> with the new

On 02/10/19 19:04, Jerome Glisse wrote: > On Wed, Oct 02, 2019 at 06:18:06PM +0200, Paolo Bonzini wrote: >>>> If the mapping of the source VMA changes, mirroring can update the >>>> target VMA via insert_pfn. But what ensures that KVM's MMU notifier >>>> dismantles its own existing page tables (so that they can be recreated >>>> with the new

This patch plugs a race between the downconvert thread and an unlock ast message. Specifically, after the downconvert worker has done its task, the dc thread needs to check whether an unlock ast made the downconvert moot. Reported-by: David Teigland <teigland at redhat.com> Signed-off-by: Sunil Mushran <sunil.mushran at oracle.com> Acked-by: Mark Fasheh <mfasheh at sus.com> ---

...0x390a0 in mbox_update_locking (mbox=0xdd100, lock_type=-4263232) at mbox-lock.c:492 ctx = {mbox = 0xdd100, lock_status = {1, 0, 0, 0}, checked_file = false, lock_type = 2, dotlock_last_stale = true} max_wait_time = -4263232 ret = 905472 i = 1169749509 drop_locks = false #6 0x3932c in mbox_lock (mbox=0xdd100, lock_type=2, lock_id_r=0xffbef3ec) at mbox-lock.c:534 ret = 905472 #7 0x3ef14 in mbox_sync (mbox=0xdd100, flags=44) at mbox-sync.c:1642 lock_type = 2 index_sync_ctx = (struct mail_index_sync_ctx *) 0x156e1302 sync...

Hi! While trying to get CLUT support for the atmel_hlcdc driver, and specifically for the emulated fbdev interface, I received some push-back that my feeble in-driver attempts should be solved by the core. This is my attempt to do it right. I have obviously not tested all of this with more than a compile, but patches 1 and 3 are enough to make the atmel-hlcdc driver do what I need (when patched

...tx->queue; + struct request_list *rl = &ctx->rl; struct request *rq = NULL; - struct request_list *rl = &q->rq; struct elevator_type *et; - struct io_context *ioc; struct io_cq *icq = NULL; const bool is_sync = rw_is_sync(rw_flags) != 0; - bool retried = false; + const bool drop_lock = (gfp_mask & __GFP_WAIT) != 0; + struct io_context *ioc; int may_queue; -retry: + et = q->elevator->type; ioc = current->io_context; if (unlikely(blk_queue_dead(q))) return NULL; may_queue = elv_may_queue(q, rw_flags); if (may_queue == ELV_MQUEUE_NO) goto rq_star...

...tx->queue; + struct request_list *rl = &ctx->rl; struct request *rq = NULL; - struct request_list *rl = &q->rq; struct elevator_type *et; - struct io_context *ioc; struct io_cq *icq = NULL; const bool is_sync = rw_is_sync(rw_flags) != 0; - bool retried = false; + const bool drop_lock = (gfp_mask & __GFP_WAIT) != 0; + struct io_context *ioc; int may_queue; -retry: + et = q->elevator->type; ioc = current->io_context; if (unlikely(blk_queue_dead(q))) return NULL; may_queue = elv_may_queue(q, rw_flags); if (may_queue == ELV_MQUEUE_NO) goto rq_star...