1. 09 11月, 2012 5 次提交
  2. 23 10月, 2012 2 次提交
  3. 20 10月, 2012 1 次提交
    • M
      arm64: fix alignment padding in assembly code · aeed41a9
      Marc Zyngier 提交于
      An interesting effect of using the generic version of linkage.h
      is that the padding is defined in terms of x86 NOPs, which can have
      even more interesting effects when the assembly code looks like this:
      
      ENTRY(func1)
      	mov	x0, xzr
      ENDPROC(func1)
      	// fall through
      ENTRY(func2)
      	mov	x0, #1
      	ret
      ENDPROC(func2)
      
      Admittedly, the code is not very nice. But having code from another
      architecture doesn't look completely sane either.
      
      The fix is to add arm64's version of linkage.h, which causes the insertion
      of proper AArch64 NOPs.
      Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
      Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
      aeed41a9
  4. 19 10月, 2012 6 次提交
  5. 17 10月, 2012 1 次提交
  6. 13 10月, 2012 1 次提交
    • J
      vfs: define struct filename and have getname() return it · 91a27b2a
      Jeff Layton 提交于
      getname() is intended to copy pathname strings from userspace into a
      kernel buffer. The result is just a string in kernel space. It would
      however be quite helpful to be able to attach some ancillary info to
      the string.
      
      For instance, we could attach some audit-related info to reduce the
      amount of audit-related processing needed. When auditing is enabled,
      we could also call getname() on the string more than once and not
      need to recopy it from userspace.
      
      This patchset converts the getname()/putname() interfaces to return
      a struct instead of a string. For now, the struct just tracks the
      string in kernel space and the original userland pointer for it.
      
      Later, we'll add other information to the struct as it becomes
      convenient.
      Signed-off-by: NJeff Layton <jlayton@redhat.com>
      Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
      91a27b2a
  7. 11 10月, 2012 4 次提交
  8. 09 10月, 2012 5 次提交
  9. 08 10月, 2012 2 次提交
  10. 06 10月, 2012 1 次提交
    • D
      compat: move compat_siginfo_t definition to asm/compat.h · 751f409d
      Denys Vlasenko 提交于
      This is a preparatory patch for the introduction of NT_SIGINFO elf note.
      
      Make the location of compat_siginfo_t uniform across eight architectures
      which have it.  Now it can be pulled in by including asm/compat.h or
      linux/compat.h.
      
      Most of the copies are verbatim.  compat_uid[32]_t had to be replaced by
      __compat_uid[32]_t.  compat_uptr_t had to be moved up before
      compat_siginfo_t in asm/compat.h on a several architectures (tile already
      had it moved up).  compat_sigval_t had to be relocated from linux/compat.h
      to asm/compat.h.
      Signed-off-by: NDenys Vlasenko <vda.linux@googlemail.com>
      Cc: Oleg Nesterov <oleg@redhat.com>
      Cc: Amerigo Wang <amwang@redhat.com>
      Cc: "Jonathan M. Foote" <jmfoote@cert.org>
      Cc: Roland McGrath <roland@hack.frob.com>
      Cc: Pedro Alves <palves@redhat.com>
      Cc: Fengguang Wu <fengguang.wu@intel.com>
      Cc: Stephen Rothwell <sfr@canb.auug.org.au>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      751f409d
  11. 04 10月, 2012 2 次提交
    • D
      UAPI: Split compound conditionals containing __KERNEL__ in Arm64 · 1c1e4362
      David Howells 提交于
      Split compound conditionals containing __KERNEL__ in Arm64 where possible to
      make it easier for the UAPI disintegration scripts to handle them.
      Signed-off-by: NDavid Howells <dhowells@redhat.com>
      Acked-by: NCatalin Marinas <catalin.marinas@arm.com>
      1c1e4362
    • D
      UAPI: Fix the guards on various asm/unistd.h files · 89013952
      David Howells 提交于
      asm-generic/unistd.h and a number of asm/unistd.h files have been given
      reinclusion guards that allow the guard to be overridden if __SYSCALL is
      defined.  Unfortunately, these files define __SYSCALL and don't undefine it
      when they've finished with it, thus rendering the guard ineffective.
      
      The reason for this override is to allow the file to be #included multiple
      times with different settings on __SYSCALL for purposes like generating syscall
      tables.
      
      The following guards are problematic:
      
      arch/arm64/include/asm/unistd.h:#if !defined(__ASM_UNISTD_H) || defined(__SYSCALL)
      arch/arm64/include/asm/unistd32.h:#if !defined(__ASM_UNISTD32_H) || defined(__SYSCALL)
      arch/c6x/include/asm/unistd.h:#if !defined(_ASM_C6X_UNISTD_H) || defined(__SYSCALL)
      arch/hexagon/include/asm/unistd.h:#if !defined(_ASM_HEXAGON_UNISTD_H) || defined(__SYSCALL)
      arch/openrisc/include/asm/unistd.h:#if !defined(__ASM_OPENRISC_UNISTD_H) || defined(__SYSCALL)
      arch/score/include/asm/unistd.h:#if !defined(_ASM_SCORE_UNISTD_H) || defined(__SYSCALL)
      arch/tile/include/asm/unistd.h:#if !defined(_ASM_TILE_UNISTD_H) || defined(__SYSCALL)
      arch/unicore32/include/asm/unistd.h:#if !defined(__UNICORE_UNISTD_H__) || defined(__SYSCALL)
      include/asm-generic/unistd.h:#if !defined(_ASM_GENERIC_UNISTD_H) || defined(__SYSCALL)
      
      On the assumption that the guards' ineffectiveness has passed unnoticed, just
      remove these guards entirely.
      Signed-off-by: NDavid Howells <dhowells@redhat.com>
      Acked-by: NArnd Bergmann <arnd@arndb.de>
      Acked-by: NCatalin Marinas <catalin.marinas@arm.com>
      89013952
  12. 03 10月, 2012 1 次提交
  13. 27 9月, 2012 1 次提交
  14. 25 9月, 2012 1 次提交
  15. 17 9月, 2012 7 次提交