Kernel

[PATCH 2/2] Add mremap trace point
This patch adds the trace point for mremap which reports relevant addresses and sizes when mremap exits successfully. Signed-off-by: Eric B Munson <emunson(a)mgebm.net> --- include/trace/events/mm.h | 22 ++++++++++++++++++++++ mm/mremap.c | 4 ++++ 2 files changed, 26 insertions(+), 0 deletio... 19 Jul 2010 13:33

[PATCH 1/2] Add trace points to mmap, munmap, and brk
This patch adds trace points to mmap, munmap, and brk that will report relevant addresses and sizes before each function exits successfully. Signed-off-by: Eric B Munson <emunson(a)mgebm.net> --- include/trace/events/mm.h | 75 +++++++++++++++++++++++++++++++++++++++++++++ mm/mmap.c | 15 +++++... 19 Jul 2010 13:33

[PATCH 0/2 V2] Add trace points to [m|mun|mre]map and brk
This patch set is a resubmit of several patches I sent out earlier that adds trace points to the mmap family. These events report addresses and sizes when each function returns success. They will be used by a userspace tool that will model memory usage. Changes from V1: - Group mmap, munmap, and brk into first ... 19 Jul 2010 13:33

pci: riptide: check kzalloc() result
At Fri, 16 Jul 2010 20:15:59 +0400, Kulikov Vasiliy wrote: If kzalloc() fails exit with -ENOMEM. Signed-off-by: Kulikov Vasiliy <segooon(a)gmail.com> Thanks, applied now. Takashi --- sound/pci/riptide/riptide.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff ... 19 Jul 2010 12:27

[PATCH v2] pci: Allow read/write access to sysfs I/O port resources
PCI sysfs resource files currently only allow mmap'ing. On x86 this works fine for memory backed BARs, but doesn't work at all for I/O port backed BARs. Add read/write to I/O port PCI sysfs resource files to allow userspace access to these device regions. Signed-off-by: Alex Williamson <alex.williamson(a)redhat.c... 19 Jul 2010 12:27

[PATCH v5 07/12] Maintain memslot version number
Code that depends on particular memslot layout can track changes and adjust to new layout. Reviewed-by: Rik van Riel <riel(a)redhat.com> Signed-off-by: Gleb Natapov <gleb(a)redhat.com> --- include/linux/kvm_host.h | 1 + virt/kvm/kvm_main.c | 1 + 2 files changed, 2 insertions(+), 0 deletions(-) dif... 19 Jul 2010 12:27

[PATCH v5 12/12] Send async PF when guest is not in userspace too.
If guest indicates that it can handle async pf in kernel mode too send it, but only if interrupt are enabled. Reviewed-by: Rik van Riel <riel(a)redhat.com> Signed-off-by: Gleb Natapov <gleb(a)redhat.com> --- arch/x86/kvm/mmu.c | 8 +++++++- 1 files changed, 7 insertions(+), 1 deletions(-) diff --git a/arch/x... 19 Jul 2010 12:27

[PATCH v5 04/12] Provide special async page fault handler when async PF capability is detected
When async PF capability is detected hook up special page fault handler that will handle async page fault events and bypass other page faults to regular page fault handler. Acked-by: Rik van Riel <riel(a)redhat.com> Signed-off-by: Gleb Natapov <gleb(a)redhat.com> --- arch/x86/include/asm/kvm_para.h | 3 + arch... 19 Jul 2010 12:27

[PATCH v5 08/12] Inject asynchronous page fault into a guest if page is swapped out.
If guest access swapped out memory do not swap it in from vcpu thread context. Setup slow work to do swapping and send async page fault to a guest. Allow async page fault injection only when guest is in user mode since otherwise guest may be in non-sleepable context and will not be able to reschedule. Acked-b... 19 Jul 2010 12:27

[PATCH v5 05/12] Export __get_user_pages_fast.
KVM will use it to try and find a page without falling back to slow gup. That is why get_user_pages_fast() is not enough. Reviewed-by: Rik van Riel <riel(a)redhat.com> Signed-off-by: Gleb Natapov <gleb(a)redhat.com> --- arch/x86/mm/gup.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/a... 19 Jul 2010 12:27