1. 02 Aug, 2005 1 commit
  2. 27 Jul, 2005 3 commits
  3. 26 Jul, 2005 1 commit
    • Eric W. Biederman's avatar
      [PATCH] Add emergency_restart() · 7c903473
      Eric W. Biederman authored
      
      
      When the kernel is working well and we want to restart cleanly
      kernel_restart is the function to use.   But in many instances
      the kernel wants to reboot when thing are expected to be working
      very badly such as from panic or a software watchdog handler.
      
      This patch adds the function emergency_restart() so that
      callers can be clear what semantics they expect when calling
      restart.  emergency_restart() is expected to be callable
      from interrupt context and possibly reliable in even more
      trying circumstances.
      
      This is an initial generic implementation for all architectures.
      Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      7c903473
  4. 30 Jun, 2005 1 commit
  5. 25 Jun, 2005 5 commits
  6. 23 Jun, 2005 1 commit
    • Jesper Juhl's avatar
      [PATCH] streamline preempt_count type across archs · dcd497f9
      Jesper Juhl authored
      
      
      The preempt_count member of struct thread_info is currently either defined
      as int, unsigned int or __s32 depending on arch.  This patch makes the type
      of preempt_count an int on all archs.
      
      Having preempt_count be an unsigned type prevents the catching of
      preempt_count < 0 bugs, and using int on some archs and __s32 on others is
      not exactely "neat" - much nicer when it's just int all over.
      
      A previous version of this patch was already ACK'ed by Robert Love, and the
      only change in this version of the patch compared to the one he ACK'ed is
      that this one also makes sure the preempt_count member is consistently
      commented.
      Signed-off-by: default avatarJesper Juhl <juhl-lkml@dif.dk>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      dcd497f9
  7. 22 Jun, 2005 1 commit
    • Ingo Molnar's avatar
      [PATCH] smp_processor_id() cleanup · 39c715b7
      Ingo Molnar authored
      
      
      This patch implements a number of smp_processor_id() cleanup ideas that
      Arjan van de Ven and I came up with.
      
      The previous __smp_processor_id/_smp_processor_id/smp_processor_id API
      spaghetti was hard to follow both on the implementational and on the
      usage side.
      
      Some of the complexity arose from picking wrong names, some of the
      complexity comes from the fact that not all architectures defined
      __smp_processor_id.
      
      In the new code, there are two externally visible symbols:
      
       - smp_processor_id(): debug variant.
      
       - raw_smp_processor_id(): nondebug variant. Replaces all existing
         uses of _smp_processor_id() and __smp_processor_id(). Defined
         by every SMP architecture in include/asm-*/smp.h.
      
      There is one new internal symbol, dependent on DEBUG_PREEMPT:
      
       - debug_smp_processor_id(): internal debug variant, mapped to
                                   smp_processor_id().
      
      Also, i moved debug_smp_processor_id() from lib/kernel_lock.c into a new
      lib/smp_processor_id.c file.  All related comments got updated and/or
      clarified.
      
      I have build/boot tested the following 8 .config combinations on x86:
      
       {SMP,UP} x {PREEMPT,!PREEMPT} x {DEBUG_PREEMPT,!DEBUG_PREEMPT}
      
      I have also build/boot tested x64 on UP/PREEMPT/DEBUG_PREEMPT.  (Other
      architectures are untested, but should work just fine.)
      Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
      Signed-off-by: default avatarArjan van de Ven <arjan@infradead.org>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      39c715b7
  8. 05 Jun, 2005 1 commit
    • Bodo Stroesser's avatar
      [PATCH] s390: uml ptrace fixes · c5c3a6d8
      Bodo Stroesser authored
      
      
      To make UML build and run on s390, I needed to do these two little
      changes:
      
      1) UML includes some of the subarch's (s390) headers. I had to
         change one of them with the following one-liner, to make this
         compile. AFAICS, this change doesn't break compilation of s390
         itself.
      
      2) UML needs to intercept syscalls via ptrace to invalidate the syscall,
         read syscall's parameters and write the result with the result of
         UML's syscall processing. Also, UML needs to make sure, that the host
         does no syscall restart processing. On i386 for example, this can be
         done by writing -1 to orig_eax on the 2nd syscall interception
         (orig_eax is the syscall number, which after the interception is used
         as a "interrupt was a syscall" flag only.
         Unfortunately, s390 holds syscall number and syscall result in gpr2 and
         its "interrupt was a syscall" flag (trap) is unreachable via ptrace.
         So I changed the host to set trap to -1, if the syscall number is changed
         to an invalid value on the first syscall interception.
      Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      c5c3a6d8
  9. 04 May, 2005 1 commit
    • Al Viro's avatar
      [PATCH] asm/signal.h unification · b1ecb4c3
      Al Viro authored
      
      
      New file - asm-generic/signal.h.  Contains declarations of
      __sighandler_t, __sigrestore_t, SIG_DFL, SIG_IGN, SIG_ERR and default
      definitions of SIG_BLOCK, SIG_UNBLOCK and SIG_SETMASK.
      
      asm-*/signal.h switched to including it.  The only exception is
      asm-parisc/signal.h that wants its own declaration of __sighandler_t;
      that one is left as-is.
      
      asm-ppc64/signal.h required one more thing - unlike everybody else it
      used __sigrestorer_t instead of usual __sigrestore_t.  PPC64 switched to
      common spelling.
      Signed-off-by: default avatarAl Viro <viro@parcelfarce.linux.theplanet.co.uk>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      b1ecb4c3
  10. 01 May, 2005 6 commits
  11. 19 Apr, 2005 2 commits
    • Hugh Dickins's avatar
      [PATCH] freepgt: arch FIRST_USER_ADDRESS 0 · d455a369
      Hugh Dickins authored
      
      
      Replace misleading definition of FIRST_USER_PGD_NR 0 by definition of
      FIRST_USER_ADDRESS 0 in all the MMU architectures beyond arm and arm26.
      Signed-off-by: default avatarHugh Dickins <hugh@veritas.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      d455a369
    • Hugh Dickins's avatar
      [PATCH] freepgt: remove MM_VM_SIZE(mm) · ee39b37b
      Hugh Dickins authored
      
      
      There's only one usage of MM_VM_SIZE(mm) left, and it's a troublesome macro
      because mm doesn't contain the (32-bit emulation?) info needed.  But it too is
      only needed because we ignore the end from the vma list.
      
      We could make flush_pgtables return that end, or unmap_vmas.  Choose the
      latter, since it's a natural fit with unmap_mapping_range_vma needing to know
      its restart addr.  This does make more than minimal change, but if unmap_vmas
      had returned the end before, this is how we'd have done it, rather than
      storing the break_addr in zap_details.
      
      unmap_vmas used to return count of vmas scanned, but that's just debug which
      hasn't been useful in a while; and if we want the map_count 0 on exit check
      back, it can easily come from the final remove_vm_struct loop.
      Signed-off-by: default avatarHugh Dickins <hugh@veritas.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      ee39b37b
  12. 16 Apr, 2005 1 commit
    • Linus Torvalds's avatar
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds authored
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      
      Let it rip!
      1da177e4