1. 16 2月, 2007 1 次提交
  2. 13 12月, 2006 1 次提交
    • R
      [ARM] Unuse another Linux PTE bit · ad1ae2fe
      Russell King 提交于
      L_PTE_ASID is not really required to be stored in every PTE, since we
      can identify it via the address passed to set_pte_at().  So, create
      set_pte_ext() which takes the address of the PTE to set, the Linux
      PTE value, and the additional CPU PTE bits which aren't encoded in
      the Linux PTE value.
      Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
      ad1ae2fe
  3. 30 10月, 2005 1 次提交
    • H
      [PATCH] mm: arm ready for split ptlock · 69b04754
      Hugh Dickins 提交于
      Prepare arm for the split page_table_lock: three issues.
      
      Signal handling's preserve and restore of iwmmxt context currently involves
      reading and writing that context to and from user space, while holding
      page_table_lock to secure the user page(s) against kswapd.  If we split the
      lock, then the structure might span two pages, secured by to read into and
      write from a kernel stack buffer, copying that out and in without locking (the
      structure is 160 bytes in size, and here we're near the top of the kernel
      stack).  Or would the overhead be noticeable?
      
      arm_syscall's cmpxchg emulation use pte_offset_map_lock, instead of
      pte_offset_map and mm-wide page_table_lock; and strictly, it should now also
      take mmap_sem before descending to pmd, to guard against another thread
      munmapping, and the page table pulled out beneath this thread.
      
      Updated two comments in fault-armv.c.  adjust_pte is interesting, since its
      modification of a pte in one part of the mm depends on the lock held when
      calling update_mmu_cache for a pte in some other part of that mm.  This can't
      be done with a split page_table_lock (and we've already taken the lowest lock
      in the hierarchy here): so we'll have to disable split on arm, unless
      CONFIG_CPU_CACHE_VIPT to ensures adjust_pte never used.
      Signed-off-by: NHugh Dickins <hugh@veritas.com>
      Signed-off-by: NAndrew Morton <akpm@osdl.org>
      Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      69b04754
  4. 20 6月, 2005 1 次提交
  5. 17 4月, 2005 1 次提交
    • L
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds 提交于
      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