1. 31 10月, 2007 1 次提交
    • D
      [NET]: Fix incorrect sg_mark_end() calls. · 51c739d1
      David S. Miller 提交于
      This fixes scatterlist corruptions added by
      
      	commit 68e3f5dd
      	[CRYPTO] users: Fix up scatterlist conversion errors
      
      The issue is that the code calls sg_mark_end() which clobbers the
      sg_page() pointer of the final scatterlist entry.
      
      The first part fo the fix makes skb_to_sgvec() do __sg_mark_end().
      
      After considering all skb_to_sgvec() call sites the most correct
      solution is to call __sg_mark_end() in skb_to_sgvec() since that is
      what all of the callers would end up doing anyways.
      
      I suspect this might have fixed some problems in virtio_net which is
      the sole non-crypto user of skb_to_sgvec().
      
      Other similar sg_mark_end() cases were converted over to
      __sg_mark_end() as well.
      
      Arguably sg_mark_end() is a poorly named function because it doesn't
      just "mark", it clears out the page pointer as a side effect, which is
      what led to these bugs in the first place.
      
      The one remaining plain sg_mark_end() call is in scsi_alloc_sgtable()
      and arguably it could be converted to __sg_mark_end() if only so that
      we can delete this confusing interface from linux/scatterlist.h
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      51c739d1
  2. 27 10月, 2007 1 次提交
  3. 26 7月, 2007 1 次提交
    • J
      Cleanup non-arch xtime uses, use get_seconds() or current_kernel_time(). · 2c6b47de
      john stultz 提交于
      This avoids use of the kernel-internal "xtime" variable directly outside
      of the actual time-related functions.  Instead, use the helper functions
      that we already have available to us.
      
      This doesn't actually change any behaviour, but this will allow us to
      fix the fact that "xtime" isn't updated very often with CONFIG_NO_HZ
      (because much of the realtime information is maintained as separate
      offsets to 'xtime'), which has caused interfaces that use xtime directly
      to get a time that is out of sync with the real-time clock by up to a
      third of a second or so.
      Signed-off-by: NJohn Stultz <johnstul@us.ibm.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      2c6b47de
  4. 28 4月, 2007 1 次提交
  5. 27 4月, 2007 1 次提交