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  1. 07 5月, 2010 1 次提交
  3. 06 5月, 2010 1 次提交
    • M
      UBI: init even if MTD device cannot be attached, if built into kernel · af7ad7a0
      由 Marc Kleine-Budde 提交于 
      UBI can be built into the kernel or be compiled as a kernel module.
Further on the command line one can specify MTD devices to be attach to
UBI while loading. In the current implementation the UBI driver refuses
to load if one of the MTD devices cannot be attached.

Consider:
1) UBI compiled into the kernel and
2) a MTD device specified on the command line and
3) this MTD device contains bogus data (for whatever reason).

During init UBI tries to attach the MTD device is this fails the whole
UBI subsystem isn't initialized. Later the userspace cannot attach any
MTD to UBI because UBI isn't loaded.

This patch keeps the current behaviour: if UBI is compiled as a module
and a MTD device cannot be attached the UBI module cannot be loaded,
but changes it for the UBI-is-built-into-the-kernel usecase.

If UBI is builtin, a not attachable MTD device doen't stop UBI from
initializing. This slightly modifies the behaviour if multiple MTD
devices are specified on the command line. Now every MTD device is
probed and, if possible, attached, i.e. a faulty MTD device doesn't
stop the others from being attached.

Artem: tweaked the patch
Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
      af7ad7a0
  5. 03 5月, 2010 1 次提交
  7. 20 4月, 2010 9 次提交
  9. 19 4月, 2010 15 次提交
  11. 18 4月, 2010 4 次提交
  13. 17 4月, 2010 6 次提交
    • D
      packet : remove init_net restriction · 1c4f0197
      由 Daniel Lezcano 提交于 
      The af_packet protocol is used by Perl to do ioctls as reported by
Stephane Riviere:

"Net::RawIP relies on SIOCGIFADDR et SIOCGIFHWADDR to get the IP and MAC
addresses of the network interface."

But in a new network namespace these ioctl fail because it is disabled for
a namespace different from the init_net_ns.

These two lines should not be there as af_inet and af_packet are
namespace aware since a long time now. I suppose we forget to remove these
lines because we sent the af_packet first, before af_inet was supported.
Signed-off-by: NDaniel Lezcano <daniel.lezcano@free.fr>
Reported-by: NStephane Riviere <stephane.riviere@regis-dgac.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      1c4f0197
    • K
      WAN: flush tx_queue in hdlc_ppp to prevent panic on rmmod hw_driver. · 31f634a6
      由 Krzysztof Halasa 提交于 
      tx_queue is used as a temporary queue when not allowed to queue skb
directly to the hw device driver (which may sleep). Most paths flush
it before returning, but ppp_start() currently cannot. Make sure we
don't leave skbs pointing to a non-existent device.

Thanks to Michael Barkowski for reporting this problem.
Signed-off-by: NKrzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      31f634a6
    • L
      Merge branch 'bugzilla-15749' into release · bc396692
      由 Len Brown 提交于
      bc396692
    • A
      ACPI: EC: Limit burst to 64 bits · 2060c445
      由 Alexey Starikovskiy 提交于 
      access_bit_width field is u8 in ACPICA, thus 256 value written to it
becomes 0, causing divide by zero later.

Proper fix would be to remove access_bit_width at all, just because
we already have access_byte_width, which is access_bit_width / 8.
Limit access width to 64 bit for now.

https://bugzilla.kernel.org/show_bug.cgi?id=15749
fixes regression caused by the fix for:
https://bugzilla.kernel.org/show_bug.cgi?id=14667Signed-off-by: NAlexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: NLen Brown <len.brown@intel.com>
      2060c445
    • D
      xfs: don't warn on EAGAIN in inode reclaim · f1d486a3
      由 Dave Chinner 提交于 
      Any inode reclaim flush that returns EAGAIN will result in the inode
reclaim being attempted again later. There is no need to issue a
warning into the logs about this situation.
Signed-off-by: NDave Chinner <dchinner@redhat.com>
Reviewed-by: NAlex Elder <aelder@sgi.com>
Signed-off-by: NAlex Elder <aelder@sgi.com>
      f1d486a3
    • D
      xfs: ensure that sync updates the log tail correctly · b6f8dd49
      由 Dave Chinner 提交于 
      Updates to the VFS layer removed an extra ->sync_fs call into the
filesystem during the sync process (from the quota code).
Unfortunately the sync code was unknowingly relying on this call to
make sure metadata buffers were flushed via a xfs_buftarg_flush()
call to move the tail of the log forward in memory before the final
transactions of the sync process were issued.

As a result, the old code would write a very recent log tail value
to the log by the end of the sync process, and so a subsequent crash
would leave nothing for log recovery to do. Hence in qa test 182,
log recovery only replayed a small handle for inode fsync
transactions in this case.

However, with the removal of the extra ->sync_fs call, the log tail
was now not moved forward with the inode fsync transactions near the
end of the sync procese the first (and only) buftarg flush occurred
after these transactions went to disk. The result is that log
recovery now sees a large number of transactions for metadata that
is already on disk.

This usually isn't a problem, but when the transactions include
inode chunk allocation, the inode create transactions and all
subsequent changes are replayed as we cannt rely on what is on disk
is valid. As a result, if the inode was written and contains
unlogged changes, the unlogged changes are lost, thereby violating
sync semantics.

The fix is to always issue a transaction after the buftarg flush
occurs is the log iѕ not idle or covered. This results in a dummy
transaction being written that contains the up-to-date log tail
value, which will be very recent. Indeed, it will be at least as
recent as the old code would have left on disk, so log recovery
will behave exactly as it used to in this situation.
Signed-off-by: NDave Chinner <dchinner@redhat.com>
Reviewed-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NAlex Elder <aelder@sgi.com>
      b6f8dd49
  15. 16 4月, 2010 3 次提交