1. 03 Aug, 2011 7 commits
  2. 26 Jul, 2011 5 commits
  3. 24 Jul, 2011 16 commits
  4. 23 Jul, 2011 1 commit
    • Ohad Ben-Cohen's avatar
      virtio: expose for non-virtualization users too · e7254219
      Ohad Ben-Cohen authored
      
      
      virtio has been so far used only in the context of virtualization,
      and the virtio Kconfig was sourced directly by the relevant arch
      Kconfigs when VIRTUALIZATION was selected.
      
      Now that we start using virtio for inter-processor communications,
      we need to source the virtio Kconfig outside of the virtualization
      scope too.
      
      Moreover, some architectures might use virtio for both virtualization
      and inter-processor communications, so directly sourcing virtio
      might yield unexpected results due to conflicting selections.
      
      The simple solution offered by this patch is to always source virtio's
      Kconfig in drivers/Kconfig, and remove it from the appropriate arch
      Kconfigs. Additionally, a virtio menu entry has been added so virtio
      drivers don't show up in the general drivers menu.
      
      This way anyone can use virtio, though it's arguably less accessible
      (and neat!) for virtualization users now.
      
      Note: some architectures (mips and sh) seem to have a VIRTUALIZATION
      menu merely for sourcing virtio's Kconfig, so that menu is removed too.
      Signed-off-by: default avatarOhad Ben-Cohen <ohad@wizery.com>
      Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
      e7254219
  5. 04 Jul, 2011 1 commit
  6. 01 Jul, 2011 1 commit
    • Peter Zijlstra's avatar
      perf: Remove the nmi parameter from the swevent and overflow interface · a8b0ca17
      Peter Zijlstra authored
      
      
      The nmi parameter indicated if we could do wakeups from the current
      context, if not, we would set some state and self-IPI and let the
      resulting interrupt do the wakeup.
      
      For the various event classes:
      
        - hardware: nmi=0; PMI is in fact an NMI or we run irq_work_run from
          the PMI-tail (ARM etc.)
        - tracepoint: nmi=0; since tracepoint could be from NMI context.
        - software: nmi=[0,1]; some, like the schedule thing cannot
          perform wakeups, and hence need 0.
      
      As one can see, there is very little nmi=1 usage, and the down-side of
      not using it is that on some platforms some software events can have a
      jiffy delay in wakeup (when arch_irq_work_raise isn't implemented).
      
      The up-side however is that we can remove the nmi parameter and save a
      bunch of conditionals in fast paths.
      Signed-off-by: default avatarPeter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Michael Cree <mcree@orcon.net.nz>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
      Cc: Anton Blanchard <anton@samba.org>
      Cc: Eric B Munson <emunson@mgebm.net>
      Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
      Cc: Paul Mundt <lethal@linux-sh.org>
      Cc: David S. Miller <davem@davemloft.net>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Jason Wessel <jason.wessel@windriver.com>
      Cc: Don Zickus <dzickus@redhat.com>
      Link: http://lkml.kernel.org/n/tip-agjev8eu666tvknpb3iaj0fg@git.kernel.org
      
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      a8b0ca17
  7. 24 Jun, 2011 1 commit
  8. 22 Jun, 2011 5 commits
  9. 20 Jun, 2011 1 commit
  10. 06 Jun, 2011 2 commits
    • Martin Schwidefsky's avatar
      [S390] fix kvm defines for 31 bit compile · 6c61cfe9
      Martin Schwidefsky authored
      
      
      KVM is not available for 31 bit but the KVM defines cause warnings:
      
      arch/s390/include/asm/pgtable.h: In function 'ptep_test_and_clear_user_dirty':
      arch/s390/include/asm/pgtable.h:817: warning: integer constant is too large for 'unsigned long' type
      arch/s390/include/asm/pgtable.h:818: warning: integer constant is too large for 'unsigned long' type
      arch/s390/include/asm/pgtable.h: In function 'ptep_test_and_clear_user_young':
      arch/s390/include/asm/pgtable.h:837: warning: integer constant is too large for 'unsigned long' type
      arch/s390/include/asm/pgtable.h:838: warning: integer constant is too large for 'unsigned long' type
      
      Add 31 bit versions of the KVM defines to remove the warnings.
      Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
      6c61cfe9
    • Martin Schwidefsky's avatar
      [S390] use generic RCU page-table freeing code · 36409f63
      Martin Schwidefsky authored
      
      
      Replace the s390 specific rcu page-table freeing code with the
      generic variant. This requires to duplicate the definition for the
      struct mmu_table_batch as s390 does not use the generic tlb flush
      code.
      
      While we are at it remove the restriction that page table fragments
      can not be reused after a single fragment has been freed with rcu
      and split out allocation and freeing of page tables with pgstes.
      Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
      36409f63