1. 16 12月, 2013 25 次提交
  2. 03 12月, 2013 1 次提交
  3. 02 12月, 2013 4 次提交
  4. 28 11月, 2013 1 次提交
  5. 25 11月, 2013 4 次提交
  6. 20 11月, 2013 2 次提交
    • H
      s390/mm: optimize copy_page · dba6bb60
      Heiko Carstens 提交于
      Always use the mvcl instruction to copy a page instead of mvpg or a
      couple of mvc instructions.
      Copying a huge page is 25% faster this way. Also bypass caches when
      copying pages since only parts of a page will be used afterwards.
      Especially when copying a huge page this would kick everything out
      of the L1 and L2 data caches on a zEC12 machine.
      Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
      dba6bb60
    • H
      s390/signal: always restore saved runtime instrumentation psw bit · aa7e04b3
      Hendrik Brueckner 提交于
      Commit "s390: fix handling of runtime instrumentation psw bit" (5ebf250d)
      changed the behavior of setting the runtime instrumentation psw bit.  This
      commit restores the original logic:
      
      1. When returning from the signal handler, the runtime instrumentation psw bit
         is restored to its saved state.
      2. If the runtime instrumentation psw bit is enabled during the signal handler,
         it is always turned off when leaving the signal handler.  The saved state
         is restored as described in 1.  That also implies that turning on runtime
         instrumentation in the signal handler is only effective while running in the
         signal context.
      Signed-off-by: NHendrik Brueckner <brueckner@linux.vnet.ibm.com>
      aa7e04b3
  7. 15 11月, 2013 3 次提交