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  1. 24 2月, 2012 3 次提交
    • B
      PCI: collapse pcibios_resource_to_bus · fb127cb9
      由 Bjorn Helgaas 提交于 
      Everybody uses the generic pcibios_resource_to_bus() supplied by the core
now, so remove the ARCH_HAS_GENERIC_PCI_OFFSETS used during conversion.
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
      fb127cb9
    • B
      PCI: add generic pcibios_resource_to_bus() · 36a66cd6
      由 Bjorn Helgaas 提交于 
      This replaces the generic versions of pcibios_resource_to_bus() and
pcibios_bus_to_resource() in asm-generic/pci.h with versions that use
pci_resource_to_bus() and pci_bus_to_resource().

The replacements are equivalent except that they can apply host
bridge window offsets when the arch has supplied them by using
pci_add_resource_offset().

Each arch can convert to using pci_add_resource_offset() individually by
removing its device resource fixups from pcibios_fixup_bus() and supplying
ARCH_HAS_GENERIC_PCI_OFFSETS.  ARCH_HAS_GENERIC_PCI_OFFSETS can be removed
after all have converted.
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
      36a66cd6
    • B
      PCI: add pci_clear_flags() · dcce6dc4
      由 Bjorn Helgaas 提交于 
      Add a pci_clear_flags() for cases when we statically initialize
pci_flags, then decide to clear things out later.
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
      dcce6dc4
  3. 13 1月, 2012 1 次提交
    • S
      thp: add tlb_remove_pmd_tlb_entry · f21760b1
      由 Shaohua Li 提交于 
      We have tlb_remove_tlb_entry to indicate a pte tlb flush entry should be
flushed, but not a corresponding API for pmd entry.  This isn't a
problem so far because THP is only for x86 currently and tlb_flush()
under x86 will flush entire TLB.  But this is confusion and could be
missed if thp is ported to other arch.

Also convert tlb->need_flush = 1 to a VM_BUG_ON(!tlb->need_flush) in
__tlb_remove_page() as suggested by Andrea Arcangeli.  The
__tlb_remove_page() function is supposed to be called after
tlb_remove_xxx_tlb_entry() and we can catch any misuse.
Signed-off-by: NShaohua Li <shaohua.li@intel.com>
Reviewed-by: NAndrea Arcangeli <aarcange@redhat.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Johannes Weiner <jweiner@redhat.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      f21760b1
  5. 05 1月, 2012 1 次提交
  7. 04 1月, 2012 1 次提交
  9. 30 12月, 2011 1 次提交
    • A
      procfs: do not confuse jiffies with cputime64_t · 34845636
      由 Andreas Schwab 提交于 
      Commit 2a95ea6c ("procfs: do not overflow get_{idle,iowait}_time
for nohz") did not take into account that one some architectures jiffies
and cputime use different units.

This causes get_idle_time() to return numbers in the wrong units, making
the idle time fields in /proc/stat wrong.

Instead of converting the usec value returned by
get_cpu_{idle,iowait}_time_us to units of jiffies, use the new function
usecs_to_cputime64 to convert it to the correct unit of cputime64_t.
Signed-off-by: NAndreas Schwab <schwab@linux-m68k.org>
Acked-by: NMichal Hocko <mhocko@suse.cz>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Artem S. Tashkinov" <t.artem@mailcity.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      34845636
  11. 15 12月, 2011 1 次提交
  13. 13 12月, 2011 3 次提交
    • D
      UAPI: Rearrange definition of HZ in asm-generic/param.h · 3d7f1dc1
      由 David Howells 提交于 
      Rearrange the definition of HZ in asm-generic/param.h so that the user-specific
is declared before the kernel-specific one.  We then explicitly #undef the
userspace HZ value and replace it with the kernel HZ value.

This allows the userspace params to be excised into a separate header as part
of the UAPI header split.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Acked-by: NArnd Bergmann <arnd@arndb.de>
      3d7f1dc1
    • G
      of: create of_phandle_args to simplify return of phandle parsing data · 15c9a0ac
      由 Grant Likely 提交于 
      of_parse_phandle_with_args() needs to return quite a bit of data.  Rather
than making each datum a separate **out_ argument, this patch creates
struct of_phandle_args to contain all the returned data and reworks the
user of the function.  This patch also enables of_parse_phandle_with_args()
to return the device node pointer for the phandle node.

This patch also ends up being fairly major surgery to
of_parse_handle_with_args().  The existing structure didn't work well
when extending to use of_phandle_args, and I discovered bugs during testing.
I also took the opportunity to rename the function to be like the
existing of_parse_phandle().

v2: - moved declaration of of_phandle_args to fix compile on non-DT builds
    - fixed incorrect index in example usage
    - fixed incorrect return code handling for empty entries
Reviewed-by: NShawn Guo <shawn.guo@freescale.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
      15c9a0ac
    • G
      gpio/powerpc: Eliminate duplication of of_get_named_gpio_flags() · 1a2d397a
      由 Grant Likely 提交于 
      A large chunk of qe_pin_request() is unnecessarily cut-and-paste
directly from of_get_named_gpio_flags().  This patch cuts out the
duplicate code and replaces it with a call to of_get_gpio().

v2: fixed compile error due to missing gpio_to_chip()
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@kernel.crashing.org>
      1a2d397a
  15. 04 12月, 2011 1 次提交
  17. 29 11月, 2011 1 次提交
  19. 10 11月, 2011 1 次提交
    • J
      net: add wireless TX status socket option · 6e3e939f
      由 Johannes Berg 提交于 
      The 802.1X EAPOL handshake hostapd does requires
knowing whether the frame was ack'ed by the peer.
Currently, we fudge this pretty badly by not even
transmitting the frame as a normal data frame but
injecting it with radiotap and getting the status
out of radiotap monitor as well. This is rather
complex, confuses users (mon.wlan0 presence) and
doesn't work with all hardware.

To get rid of that hack, introduce a real wifi TX
status option for data frame transmissions.

This works similar to the existing TX timestamping
in that it reflects the SKB back to the socket's
error queue with a SCM_WIFI_STATUS cmsg that has
an int indicating ACK status (0/1).

Since it is possible that at some point we will
want to have TX timestamping and wifi status in a
single errqueue SKB (there's little point in not
doing that), redefine SO_EE_ORIGIN_TIMESTAMPING
to SO_EE_ORIGIN_TXSTATUS which can collect more
than just the timestamp; keep the old constant
as an alias of course. Currently the internal APIs
don't make that possible, but it wouldn't be hard
to split them up in a way that makes it possible.

Thanks to Neil Horman for helping me figure out
the functions that add the control messages.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      6e3e939f
  21. 01 11月, 2011 5 次提交
  23. 27 10月, 2011 1 次提交
  25. 25 10月, 2011 1 次提交
  27. 24 10月, 2011 1 次提交
  29. 07 10月, 2011 3 次提交
  31. 08 9月, 2011 1 次提交
  33. 27 8月, 2011 1 次提交
  35. 20 8月, 2011 1 次提交
  37. 18 8月, 2011 1 次提交
  39. 27 7月, 2011 9 次提交
  41. 26 7月, 2011 2 次提交