1. 09 10月, 2012 2 次提交
  2. 04 10月, 2012 1 次提交
  3. 03 10月, 2012 1 次提交
  4. 28 9月, 2012 5 次提交
    • G
      um: Preinclude include/linux/kern_levels.h · 9429ec96
      Geert Uytterhoeven 提交于
      The userspace part of UML uses the asm-offsets.h generator mechanism to
      create definitions for UM_KERN_<LEVEL> that match the in-kernel
      KERN_<LEVEL> constant definitions.
      
      As of commit 04d2c8c8 ("printk: convert
      the format for KERN_<LEVEL> to a 2 byte pattern"), KERN_<LEVEL> is no
      longer expanded to the literal '"<LEVEL>"', but to '"\001" "LEVEL"', i.e.
      it contains two parts.
      
      However, the combo of DEFINE_STR() in
      arch/x86/um/shared/sysdep/kernel-offsets.h and sed-y in Kbuild doesn't
      support string literals consisting of multiple parts. Hence for all
      UM_KERN_<LEVEL> definitions, only the SOH character is retained in the actual
      definition, while the remainder ends up in the comment. E.g. in
      include/generated/asm-offsets.h we get
      
          #define UM_KERN_INFO "\001" /* "6" KERN_INFO */
      
      instead of
      
          #define UM_KERN_INFO "\001" "6" /* KERN_INFO */
      
      This causes spurious '^A' output in some kernel messages:
      
          Calibrating delay loop... 4640.76 BogoMIPS (lpj=23203840)
          pid_max: default: 32768 minimum: 301
          Mount-cache hash table entries: 256
          ^AChecking that host ptys support output SIGIO...Yes
          ^AChecking that host ptys support SIGIO on close...No, enabling workaround
          ^AUsing 2.6 host AIO
          NET: Registered protocol family 16
          bio: create slab <bio-0> at 0
          Switching to clocksource itimer
      
      To fix this:
        - Move the mapping from UM_KERN_<LEVEL> to KERN_<LEVEL> from
          arch/um/include/shared/common-offsets.h to
          arch/um/include/shared/user.h, which is preincluded for all userspace
          parts,
        - Preinclude include/linux/kern_levels.h for all userspace parts, to
          obtain the in-kernel KERN_<LEVEL> constant definitions. This doesn't
          violate the kernel/userspace separation, as include/linux/kern_levels.h
          is self-contained and doesn't expose any other kernel internals.
        - Remove the now unused STR() and DEFINE_STR() macros.
      Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
      Signed-off-by: NRichard Weinberger <richard@nod.at>
      9429ec96
    • A
      um: kill thread->forking · d2ce4e92
      Al Viro 提交于
      we only use that to tell copy_thread() done by syscall from that
      done by kernel_thread().  However, it's easier to do simply by
      checking PF_KTHREAD in thread flags.
      
      Merge sys_clone() guts for 32bit and 64bit, while we are at it...
      Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
      d2ce4e92
    • A
      um: let signal_delivered() do SIGTRAP on singlestepping into handler · f9a38eac
      Al Viro 提交于
      ... rather than duplicating that in sigframe setup code (and doing that
      inconsistently, at that)
      Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
      f9a38eac
    • A
    • A
      um: take cleaning singlestep to start_thread() · 42459792
      Al Viro 提交于
      ... assuming it's needed to be done at all
      Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
      42459792
  5. 27 9月, 2012 1 次提交
  6. 26 9月, 2012 1 次提交
    • F
      rcu: Switch task's syscall hooks on context switch · 04e7e951
      Frederic Weisbecker 提交于
      Clear the syscalls hook of a task when it's scheduled out so that if
      the task migrates, it doesn't run the syscall slow path on a CPU
      that might not need it.
      
      Also set the syscalls hook on the next task if needed.
      Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com>
      Cc: Alessio Igor Bogani <abogani@kernel.org>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Avi Kivity <avi@redhat.com>
      Cc: Chris Metcalf <cmetcalf@tilera.com>
      Cc: Christoph Lameter <cl@linux.com>
      Cc: Geoff Levand <geoff@infradead.org>
      Cc: Gilad Ben Yossef <gilad@benyossef.com>
      Cc: Hakan Akkan <hakanakkan@gmail.com>
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Ingo Molnar <mingo@kernel.org>
      Cc: Josh Triplett <josh@joshtriplett.org>
      Cc: Kevin Hilman <khilman@ti.com>
      Cc: Max Krasnyansky <maxk@qualcomm.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephen Hemminger <shemminger@vyatta.com>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Sven-Thorsten Dietrich <thebigcorporation@gmail.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com>
      Reviewed-by: NJosh Triplett <josh@joshtriplett.org>
      04e7e951
  7. 06 9月, 2012 2 次提交
    • I
      UDF: Add support for O_DIRECT · 5eec54fc
      Ian Abbott 提交于
      Add support for the O_DIRECT flag.  There are two cases to deal with:
      
      1. Small files stored in the ICB (inode control block?): just return 0
      from the new udf_adinicb_direct_IO() handler to fall back to buffered
      I/O.
      
      2. Larger files, not stored in the ICB: nothing special here.  Just call
      blockdev_direct_IO() from our new udf_direct_IO() handler and tidy up
      any blocks instantiated outside i_size on error.  This is pretty
      standard.  Factor error handling code out of udf_write_begin() into new
      function udf_write_failed() so it can also be called by udf_direct_IO().
      
      Also change the whitespace in udf_aops to make it a bit neater.
      Signed-off-by: NIan Abbott <abbotti@mev.co.uk>
      Signed-off-by: NJan Kara <jack@suse.cz>
      5eec54fc
    • M
      uml: fix compile error in deliver_alarm() · bc6c8364
      Miklos Szeredi 提交于
      Fix the following compile error on UML.
      
        arch/um/os-Linux/time.c: In function 'deliver_alarm':
        arch/um/os-Linux/time.c:117:3: error: too few arguments to function 'alarm_handler'
        arch/um/os-Linux/internal.h:1:6: note: declared here
      
      The error was introduced by commit d3c1cfcd ("um: pass siginfo to guest
      process") in 3.6-rc1.
      Signed-off-by: NMiklos Szeredi <mszeredi@suse.cz>
      CC: Martin Pärtel <martin.partel@gmail.com>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      bc6c8364
  8. 14 8月, 2012 1 次提交
    • J
      TTY: use tty_port_register_device · 734cc178
      Jiri Slaby 提交于
      Currently we have no way to assign tty->port while performing tty
      installation. There are two ways to provide the link tty_struct =>
      tty_port. Either by calling tty_port_install from tty->ops->install or
      tty_port_register_device called instead of tty_register_device when
      the device is being set up after connected.
      
      In this patch we modify most of the drivers to do the latter. When the
      drivers use tty_register_device and we have tty_port already, we
      switch to tty_port_register_device. So we have the tty_struct =>
      tty_port link for free for those.
      Signed-off-by: NJiri Slaby <jslaby@suse.cz>
      Acked-by: NAlan Cox <alan@linux.intel.com>
      Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      734cc178
  9. 02 8月, 2012 5 次提交
  10. 01 8月, 2012 1 次提交
    • A
      memcg: rename config variables · c255a458
      Andrew Morton 提交于
      Sanity:
      
      CONFIG_CGROUP_MEM_RES_CTLR -> CONFIG_MEMCG
      CONFIG_CGROUP_MEM_RES_CTLR_SWAP -> CONFIG_MEMCG_SWAP
      CONFIG_CGROUP_MEM_RES_CTLR_SWAP_ENABLED -> CONFIG_MEMCG_SWAP_ENABLED
      CONFIG_CGROUP_MEM_RES_CTLR_KMEM -> CONFIG_MEMCG_KMEM
      
      [mhocko@suse.cz: fix missed bits]
      Cc: Glauber Costa <glommer@parallels.com>
      Acked-by: NMichal Hocko <mhocko@suse.cz>
      Cc: Johannes Weiner <hannes@cmpxchg.org>
      Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
      Cc: Hugh Dickins <hughd@google.com>
      Cc: Tejun Heo <tj@kernel.org>
      Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
      Cc: David Rientjes <rientjes@google.com>
      Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      c255a458
  11. 28 7月, 2012 7 次提交
  12. 24 7月, 2012 1 次提交
  13. 19 7月, 2012 1 次提交
    • T
      um: remove IRQF_SAMPLE_RANDOM which is now a no-op · aab94460
      Theodore Ts'o 提交于
      With the changes in the random tree, IRQF_SAMPLE_RANDOM is now a
      no-op; interrupt randomness is now collected unconditionally in a very
      low-overhead fashion; see commit 775f4b29.  The IRQF_SAMPLE_RANDOM
      flag was scheduled to be removed in 2009 on the
      feature-removal-schedule, so this patch is preparation for the final
      removal of this flag.
      Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu>
      Cc: Jeff Dike <jdike@addtoit.com>
      Cc: Richard Weinberger <richard@nod.at>
      aab94460
  14. 17 7月, 2012 1 次提交
  15. 03 7月, 2012 1 次提交
  16. 13 6月, 2012 2 次提交
  17. 02 6月, 2012 5 次提交
  18. 01 6月, 2012 2 次提交