1. 29 3月, 2012 2 次提交
    • R
      remove references to cpu_*_map in arch/ · 0b5f9c00
      Rusty Russell 提交于
      This has been obsolescent for a while; time for the final push.
      
      In adjacent context, replaced old cpus_* with cpumask_*.
      Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
      Acked-by: David S. Miller <davem@davemloft.net> (arch/sparc)
      Acked-by: Chris Metcalf <cmetcalf@tilera.com> (arch/tile)
      Cc: user-mode-linux-devel@lists.sourceforge.net
      Cc: Russell King <linux@arm.linux.org.uk>
      Cc: linux-arm-kernel@lists.infradead.org
      Cc: Richard Kuo <rkuo@codeaurora.org>
      Cc: linux-hexagon@vger.kernel.org
      Cc: Ralf Baechle <ralf@linux-mips.org>
      Cc: linux-mips@linux-mips.org
      Cc: Kyle McMartin <kyle@mcmartin.ca>
      Cc: Helge Deller <deller@gmx.de>
      Cc: sparclinux@vger.kernel.org
      0b5f9c00
    • D
      Remove all #inclusions of asm/system.h · 9ffc93f2
      David Howells 提交于
      Remove all #inclusions of asm/system.h preparatory to splitting and killing
      it.  Performed with the following command:
      
      perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *`
      Signed-off-by: NDavid Howells <dhowells@redhat.com>
      9ffc93f2
  2. 25 3月, 2012 30 次提交
  3. 24 3月, 2012 2 次提交
  4. 21 3月, 2012 2 次提交
  5. 20 3月, 2012 1 次提交
  6. 18 2月, 2012 1 次提交
  7. 18 1月, 2012 2 次提交
    • E
      audit: inline audit_syscall_entry to reduce burden on archs · b05d8447
      Eric Paris 提交于
      Every arch calls:
      
      if (unlikely(current->audit_context))
      	audit_syscall_entry()
      
      which requires knowledge about audit (the existance of audit_context) in
      the arch code.  Just do it all in static inline in audit.h so that arch's
      can remain blissfully ignorant.
      Signed-off-by: NEric Paris <eparis@redhat.com>
      b05d8447
    • E
      Audit: push audit success and retcode into arch ptrace.h · d7e7528b
      Eric Paris 提交于
      The audit system previously expected arches calling to audit_syscall_exit to
      supply as arguments if the syscall was a success and what the return code was.
      Audit also provides a helper AUDITSC_RESULT which was supposed to simplify things
      by converting from negative retcodes to an audit internal magic value stating
      success or failure.  This helper was wrong and could indicate that a valid
      pointer returned to userspace was a failed syscall.  The fix is to fix the
      layering foolishness.  We now pass audit_syscall_exit a struct pt_reg and it
      in turns calls back into arch code to collect the return value and to
      determine if the syscall was a success or failure.  We also define a generic
      is_syscall_success() macro which determines success/failure based on if the
      value is < -MAX_ERRNO.  This works for arches like x86 which do not use a
      separate mechanism to indicate syscall failure.
      
      We make both the is_syscall_success() and regs_return_value() static inlines
      instead of macros.  The reason is because the audit function must take a void*
      for the regs.  (uml calls theirs struct uml_pt_regs instead of just struct
      pt_regs so audit_syscall_exit can't take a struct pt_regs).  Since the audit
      function takes a void* we need to use static inlines to cast it back to the
      arch correct structure to dereference it.
      
      The other major change is that on some arches, like ia64, MIPS and ppc, we
      change regs_return_value() to give us the negative value on syscall failure.
      THE only other user of this macro, kretprobe_example.c, won't notice and it
      makes the value signed consistently for the audit functions across all archs.
      
      In arch/sh/kernel/ptrace_64.c I see that we were using regs[9] in the old
      audit code as the return value.  But the ptrace_64.h code defined the macro
      regs_return_value() as regs[3].  I have no idea which one is correct, but this
      patch now uses the regs_return_value() function, so it now uses regs[3].
      
      For powerpc we previously used regs->result but now use the
      regs_return_value() function which uses regs->gprs[3].  regs->gprs[3] is
      always positive so the regs_return_value(), much like ia64 makes it negative
      before calling the audit code when appropriate.
      Signed-off-by: NEric Paris <eparis@redhat.com>
      Acked-by: H. Peter Anvin <hpa@zytor.com> [for x86 portion]
      Acked-by: Tony Luck <tony.luck@intel.com> [for ia64]
      Acked-by: Richard Weinberger <richard@nod.at> [for uml]
      Acked-by: David S. Miller <davem@davemloft.net> [for sparc]
      Acked-by: Ralf Baechle <ralf@linux-mips.org> [for mips]
      Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [for ppc]
      d7e7528b