1. 30 Jun, 2006 1 commit
  2. 31 Mar, 2006 1 commit
    • Paolo 'Blaisorblade' Giarrusso's avatar
      [PATCH] uml: implement {get,set}_thread_area for i386 · aa6758d4
      Paolo 'Blaisorblade' Giarrusso authored
      
      
      Implement sys_[gs]et_thread_area and the corresponding ptrace operations for
      UML.  This is the main chunk, additional parts follow.  This implementation is
      now well tested and has run reliably for some time, and we've understood all
      the previously existing problems.
      
      Their implementation saves the new GDT content and then forwards the call to
      the host when appropriate, i.e.  immediately when the target process is
      running or on context switch otherwise (i.e.  on fork and on ptrace() calls).
      
      In SKAS mode, we must switch registers on each context switch (because SKAS
      does not switches tls_array together with current->mm).
      
      Also, added get_cpu() locking; this has been done for SKAS mode, since TT does
      not need it (it does not use smp_processor_id()).
      Signed-off-by: default avatarPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
      Acked-by: default avatarJeff Dike <jdike@addtoit.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      aa6758d4
  3. 01 May, 2005 1 commit