search for: 428,10

Currently, enable/disable turbo mode on AMD is broken: $ xenpm enable-turbo-mode 0 <-- works and proper CPU MSR bit is set $ xenpm enable-turbo-mode 1 <-- silently broken, MSR bit not set Since ->turbo is per policy, when user requests to enable/disable turbo mode, we need to set the bit in all of the ->cpus that this policy affects. --- xen/arch/x86/acpi/cpufreq/powernow.c | 2

...;src_pages[src_page], - d->src_prot); - if (!d->src_addr) - return -ENOMEM; - + d->src_addr = kmap_local_page_prot(d->src_pages[src_page], + d->src_prot); d->mapped_src = src_page; } diff->do_cpy(diff, d->dst_addr + dst_page_offset, @@ -436,8 +428,10 @@ static int vmw_bo_cpu_blit_line(struct v * * Performs a CPU blit from one buffer object to another avoiding a full * bo vmap which may exhaust- or fragment vmalloc space. - * On supported architectures (x86), we're using kmap_atomic which avoids - * cross-processor TLB- and cache fl...

...============================================= --- kvm.orig/mm/rmap.c +++ kvm/mm/rmap.c @@ -411,9 +411,6 @@ int page_referenced(struct page *page, i { int referenced = 0; - if (page_test_and_clear_young(page)) - referenced++; - if (TestClearPageReferenced(page)) referenced++; @@ -431,6 +428,10 @@ int page_referenced(struct page *page, i unlock_page(page); } } + + if (page_test_and_clear_young(page)) + referenced++; + return referenced; }

--autosysroot option uses suggestions to user on how to mount filesystems and change root suggested by --suggest option in virt-rescue. Commands are passed on kernel command line in format guestfs_command=command;. Command ends with a semicolon and there can be multiple commands specified. These are executed just before bash starts. On successfull run user is presented directly with bash in

...32_t flags) { - struct command_cb cb = { .callback = callback, .user_data = user_data, }; + struct command_cb cb = { .completion = completion, .user_data = user_data, }; if (nbd_unlocked_read_only (h) == 1) { set_error (EINVAL, "server does not support write operations"); @@ -428,10 +435,11 @@ nbd_unlocked_aio_cache (struct nbd_handle *h, int64_t nbd_unlocked_aio_cache_callback (struct nbd_handle *h, uint64_t count, uint64_t offset, - callback_fn callback, void *user_data, +...

This patch set contains two parts of changes to the virtio-balloon. One is the change for speeding up the inflating & deflating process, the main idea of this optimization is to use bitmap to send the page information to host instead of the PFNs, to reduce the overhead of virtio data transmission, address translation and madvise(). This can help to improve the performance by about 85%.

This patch set contains two parts of changes to the virtio-balloon. One is the change for speeding up the inflating & deflating process, the main idea of this optimization is to use bitmap to send the page information to host instead of the PFNs, to reduce the overhead of virtio data transmission, address translation and madvise(). This can help to improve the performance by about 85%.

...teCount = size; + gpadl_header->range[0].ByteOffset = 0; + gpadl_header->range[0].ByteCount = size; for (i = 0; i < pfncount; i++) - gpadl_header->Range[0].PfnArray[i] = pfn+i; + gpadl_header->range[0].PfnArray[i] = pfn+i; *msginfo = msgheader; *messagecount = 1; @@ -428,10 +428,10 @@ static int create_gpadl_header(void *kbuffer, u32 size, /* FIXME: we probably need to more if this fails */ if (!msgbody) goto nomem; - msgbody->MessageSize = msgsize; + msgbody->msgsize = msgsize; (*messagecount)++; gpadl_body = - (struct vmbus_chann...

...teCount = size; + gpadl_header->range[0].ByteOffset = 0; + gpadl_header->range[0].ByteCount = size; for (i = 0; i < pfncount; i++) - gpadl_header->Range[0].PfnArray[i] = pfn+i; + gpadl_header->range[0].PfnArray[i] = pfn+i; *msginfo = msgheader; *messagecount = 1; @@ -428,10 +428,10 @@ static int create_gpadl_header(void *kbuffer, u32 size, /* FIXME: we probably need to more if this fails */ if (!msgbody) goto nomem; - msgbody->MessageSize = msgsize; + msgbody->msgsize = msgsize; (*messagecount)++; gpadl_body = - (struct vmbus_chann...

Following up to the discussion in: https://lore.kernel.org/r/20200914204209.256266093 at linutronix.de and the second version of this: https://lore.kernel.org/r/20201029221806.189523375 at linutronix.de this series provides a preemptible variant of kmap_atomic & related interfaces. This is achieved by: - Removing the RT dependency from migrate_disable/enable() - Consolidating all

Following up to the discussion in: https://lore.kernel.org/r/20200914204209.256266093 at linutronix.de and the second version of this: https://lore.kernel.org/r/20201029221806.189523375 at linutronix.de this series provides a preemptible variant of kmap_atomic & related interfaces. This is achieved by: - Removing the RT dependency from migrate_disable/enable() - Consolidating all

Following up to the discussion in: https://lore.kernel.org/r/20200914204209.256266093 at linutronix.de and the second version of this: https://lore.kernel.org/r/20201029221806.189523375 at linutronix.de this series provides a preemptible variant of kmap_atomic & related interfaces. This is achieved by: - Removing the RT dependency from migrate_disable/enable() - Consolidating all