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  1. 03 11月, 2007 28 次提交
  3. 02 11月, 2007 8 次提交
    • V
      dm: bounce_pfn limit added · 5ec140e6
      由 Vasily Averin 提交于 
      Device mapper uses its own bounce_pfn that may differ from one on underlying
device. In that way dm can build incorrect requests that contain sg elements
greater than underlying device is able to handle.

This is the cause of slab corruption in i2o layer, occurred on i386 arch when
very long direct IO requests are addressed to dm-over-i2o device.
Signed-off-by: NVasily Averin <vvs@sw.ru>
Cc: <stable@kernel.org>
Cc: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
      5ec140e6
    • J
      [SG] Get rid of __sg_mark_end() · c46f2334
      由 Jens Axboe 提交于 
      sg_mark_end() overwrites the page_link information, but all users want
__sg_mark_end() behaviour where we just set the end bit. That is the most
natural way to use the sg list, since you'll fill it in and then mark the
end point.

So change sg_mark_end() to only set the termination bit. Add a sg_magic
debug check as well, and clear a chain pointer if it is set.
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
      c46f2334
    • A
      cleanup asm/scatterlist.h includes · 87ae9afd
      由 Adrian Bunk 提交于 
      Not architecture specific code should not #include <asm/scatterlist.h>.

This patch therefore either replaces them with
#include <linux/scatterlist.h> or simply removes them if they were
unused.
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
      87ae9afd
    • H
      Input: inport, logibm - use KERN_INFO when reporting missing mouse · 2a0f9c4c
      由 Helge Deller 提交于 
      Many mouse drivers are often compiled (e.g. in Linux distributions) into the
kernel at the same time just to make sure that at least one driver will suceed
in find it's mouse device. Nevertheless, only the inport and logitech busmouse
mouse drivers report with KERN_ERR log level if the mouse wasn't found. They
should use KERN_INFO instead, because it's not an error if the mouse isn't
attached at all.
Signed-off-by: NHelge Deller <deller@gmx.de>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
      2a0f9c4c
    • D
      Input: appletouch - idle reset logic broke older Fountains · 2a3e480d
      由 Dmitry Torokhov 提交于 
      Fountains do not support change mode request and therefore
should be excluded from idle reset attempts.

Also:
 - do not re-submit URB when we decide that touchpad needs to be
   reinicialized
 - do not repeat size detection when reinitializing the touchpad
 - Add missing KERN_* prefixes to messages
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Acked-by: NJohannes Berg <johannes@sipsolutions.net>
      2a3e480d
    • A
      Fix myri10ge NAPI oops & warnings · c956a240
      由 Andrew Gallatin 提交于 
      When testing the myri10ge driver with 2.6.24-rc1, I found
that the machine crashed under heavy load:

Unable to handle kernel paging request at 0000000000100108 RIP:
  [<ffffffff803cc8dd>] net_rx_action+0x11b/0x184

The address corresponds to the list_move_tail() in
netif_rx_complete():
                     if (unlikely(work == weight))
                             list_move_tail(&n->poll_list, list);

Eventually, I traced the crashes to calling netif_rx_complete() with
work_done == budget.  From looking at other drivers, it appears that
one should only call netif_rx_complete() when work_done < budget.

To fix it, I changed the test in myri10ge_poll() so that it refers
to to work_done rather than looking at the rx ring status.  If
work_done is < budget, then that implies we have no more packets to
process. Any races will be resolved by the NIC when the write to
irq_claim is made.

In myri10ge_clean_rx_done(), if we ever exceeded our budget, it would
report a work_done one larger than was acutally done.  This is because
the increment was done in the conditional, so work_done would be
incremented regardless of whether or not the test passed or failed.
This would lead to the WARN_ON_ONCE(work > weight); warning in
net_rx_action triggering.  I've moved the increment of work_done
inside the loop.  Note that this would only be a problem when we had
exceeded our budget.

Signed off by: Andrew Gallatin <gallatin@myri.com>

Andrew Gallatin Myricom Inc
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      c956a240
    • G
      Fix region size check in mpc5200 FEC driver · 48d58459
      由 Grant Likely 提交于 
      Driver shouldn't complain if the register range is larger than what
it expects.  This works around failures with some device trees.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      48d58459
    • G
      mpc5200: Fix Kconfig dependancies on MPC5200 FEC device driver · 644fdf9b
      由 Grant Likely 提交于 
      When not building an arch/powerpc kernel, the mpc5200 FEC driver depends
on some symbols which are not defined (BESTCOMM & BESTCOMM_FEC).

This patch flips around the dependancy logic so that it cannot be
selected unless BESTCOMM_FEC is selected first.  Kconfig stops
complaining this way.

Also, the driver only works for arch/powerpc (not arch/ppc) anyway so
it should depend on PPC_MERGE also.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      644fdf9b
  5. 01 11月, 2007 4 次提交