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  1. 26 8月, 2009 1 次提交
  3. 21 8月, 2009 3 次提交
  5. 20 8月, 2009 1 次提交
  7. 12 8月, 2009 1 次提交
  9. 06 8月, 2009 2 次提交
  11. 05 8月, 2009 1 次提交
  13. 21 7月, 2009 1 次提交
  15. 14 7月, 2009 1 次提交
  17. 13 7月, 2009 4 次提交
  19. 08 7月, 2009 2 次提交
  21. 29 6月, 2009 7 次提交
  23. 20 6月, 2009 2 次提交
  25. 11 6月, 2009 4 次提交
  27. 10 6月, 2009 1 次提交
  29. 09 6月, 2009 6 次提交
    • Y
      cpumask: alloc zeroed cpumask for static cpumask_var_ts · eaa95840
      由 Yinghai Lu 提交于 
      These are defined as static cpumask_var_t so if MAXSMP is not used,
they are cleared already.  Avoid surprises when MAXSMP is enabled.
Signed-off-by: NYinghai Lu <yinghai.lu@kernel.org>
Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
      eaa95840
    • E
      r8169: fix crash when large packets are received · fdd7b4c3
      由 Eric Dumazet 提交于 
      Michael Tokarev reported receiving a large packet could crash
a machine with RTL8169 NIC.
( original thread at http://lkml.org/lkml/2009/6/8/192 )

Problem is this driver tells that NIC frames up to 16383 bytes
can be received but provides skb to rx ring allocated with
smaller sizes (1536 bytes in case standard 1500 bytes MTU is used)

When a frame larger than what was allocated by driver is received,
dma transfert can occurs past the end of buffer and corrupt
kernel memory.

Fix is to tell to NIC what is the maximum size a frame can be.

This bug is very old, (before git introduction, linux-2.6.10), and 
should be backported to stable versions.
Reported-by: NMichael Tokarev <mjt@tls.msk.ru>
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Tested-by: NMichael Tokarev <mjt@tls.msk.ru>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      fdd7b4c3
    • N
      md/raid5: fix bug in reshape code when chunk_size decreases. · 0e6e0271
      由 NeilBrown 提交于 
      Now that we support changing the chunksize, we calculate
"reshape_sectors" to be the max of number of sectors in old
and new chunk size.
However there is one please where we still use 'chunksize'
rather than 'reshape_sectors'.
This causes a reshape that reduces the size of chunks to freeze.
Signed-off-by: NNeilBrown <neilb@suse.de>
      0e6e0271
    • N
      md/raid5 - avoid deadlocks in get_active_stripe during reshape · a8c906ca
      由 NeilBrown 提交于 
      md has functionality to 'quiesce' and array so that all pending
IO completed and no new IO starts.  This is used to achieve a
stable state before making internal changes.

Currently this quiescing applies equally to normal IO, resync
IO, and reshape IO.
However there is a problem with applying it to reshape IO.
Reshape can have multiple 'stripe_heads' that must be active together.
If the quiesce come between allocating the first and the last of
such a collection, then we deadlock, as the last will not be allocated
until the quiesce is lifted, the quiesce will not be lifted until the
first (which has been allocated) gets used, and that first cannot be
used until the last is allocated.

It is not necessary to inhibit reshape IO when a quiesce is
requested.  Those places in the code that require a full quiesce will
ensure the reshape thread is not running at all.

So allow reshape requests to get access to new stripe_heads without
being blocked by a 'quiesce'.

This only affects in-place reshapes (i.e. where the array does not
grow or shrink) and these are only newly supported.  So this patch is
not needed in earlier kernels.
Signed-off-by: NNeilBrown <neilb@suse.de>
      a8c906ca
    • N
      md/raid5: use conf->raid_disks in preference to mddev->raid_disk · f001a70c
      由 NeilBrown 提交于 
      mddev->raid_disks can be changed and any time by a request from
user-space.  It is a suggestion as to what number of raid_disks is
desired.

conf->raid_disks can only be changed by the raid5 module with suitable
locks in place.  It is a statement as to the current number of
raid_disks.

There are two places where the latter should be used, but the former
is used.  This can lead to a crash when reshaping an array.

This patch changes to mddev-> to conf->
Signed-off-by: NNeilBrown <neilb@suse.de>
      f001a70c
    • A
      pata_netcell: Fix typo · 5284c6b9
      由 Alan Cox 提交于 
      The previous patch submission had a I typo I didn't catch but Bartlomiej
noted. Guess this proves the point about any patch being risky late in an rc
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      5284c6b9
  31. 08 6月, 2009 1 次提交
  33. 07 6月, 2009 2 次提交