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  1. 30 11月, 2009 1 次提交
  3. 26 11月, 2009 1 次提交
    • I
      block: add helpers to run flush_dcache_page() against a bio and a request's pages · 2d4dc890
      由 Ilya Loginov 提交于 
      Mtdblock driver doesn't call flush_dcache_page for pages in request.  So,
this causes problems on architectures where the icache doesn't fill from
the dcache or with dcache aliases.  The patch fixes this.

The ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE symbol was introduced to avoid
pointless empty cache-thrashing loops on architectures for which
flush_dcache_page() is a no-op.  Every architecture was provided with this
flush pages on architectires where ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE is
equal 1 or do nothing otherwise.

See "fix mtd_blkdevs problem with caches on some architectures" discussion
on LKML for more information.
Signed-off-by: NIlya Loginov <isloginov@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Peter Horton <phorton@bitbox.co.uk>
Cc: "Ed L. Cashin" <ecashin@coraid.com>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
      2d4dc890
  5. 19 11月, 2009 1 次提交
  7. 18 11月, 2009 1 次提交
  9. 12 11月, 2009 1 次提交
  11. 09 11月, 2009 2 次提交
  13. 06 11月, 2009 1 次提交
  15. 04 11月, 2009 1 次提交
  17. 27 10月, 2009 2 次提交
  19. 26 10月, 2009 5 次提交
  21. 16 10月, 2009 4 次提交
  23. 14 10月, 2009 5 次提交
  25. 13 10月, 2009 5 次提交
    • M
      net: allow sh_eth to get mac address through platform data · 748031f9
      由 Magnus Damm 提交于 
      Extend the sh_eth driver to allow passing the mac address
using the platform data structure. This to simplify board
setup code.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Tested-by: NKuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      748031f9
    • A
      net: Introduce recvmmsg socket syscall · a2e27255
      由 Arnaldo Carvalho de Melo 提交于 
      Meaning receive multiple messages, reducing the number of syscalls and
net stack entry/exit operations.

Next patches will introduce mechanisms where protocols that want to
optimize this operation will provide an unlocked_recvmsg operation.

This takes into account comments made by:

. Paul Moore: sock_recvmsg is called only for the first datagram,
  sock_recvmsg_nosec is used for the rest.

. Caitlin Bestler: recvmmsg now has a struct timespec timeout, that
  works in the same fashion as the ppoll one.

  If the underlying protocol returns a datagram with MSG_OOB set, this
  will make recvmmsg return right away with as many datagrams (+ the OOB
  one) it has received so far.

. Rémi Denis-Courmont & Steven Whitehouse: If we receive N < vlen
  datagrams and then recvmsg returns an error, recvmmsg will return
  the successfully received datagrams, store the error and return it
  in the next call.

This paves the way for a subsequent optimization, sk_prot->unlocked_recvmsg,
where we will be able to acquire the lock only at batch start and end, not at
every underlying recvmsg call.
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      a2e27255
    • P
      sh: ftrace: Fix up syscall tracepoint support. · 99222622
      由 Paul Mundt 提交于 
      Sync up with latest core changes in the syscalls tracing area:

- tracing: Map syscall name to number (syscall_name_to_nr())
- tracing: Call arch_init_ftrace_syscalls at boot
- tracing: add support tracepoint ids (set_syscall_{enter,exit}_id())

Taken from the s390 change.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
      99222622
    • P
      sh: force dcache flush if dcache_dirty bit set. · 964f7e5a
      由 Paul Mundt 提交于 
      This too follows the ARM change, given that the issue at hand applies to
all platforms that implement lazy D-cache writeback.

This fixes up the case when a page mapping disappears between the
flush_dcache_page() call (when PG_dcache_dirty is set for the page) and
the update_mmu_cache() call -- such as in the case of swap cache being
freed early. This kills off the mapping test in update_mmu_cache() and
switches to simply testing for PG_dcache_dirty.
Reported-by: NNitin Gupta <ngupta@vflare.org>
Reported-by: NHugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
      964f7e5a
    • P
      sh: update die() output. · af67c3a9
      由 Paul Mundt 提交于 
      This follows the ARM change, as SH had all of the same issues:

Make die() better match x86:
- add printing of the last accessed sysfs file
- ensure console_verbose() is called under the lock
- ensure we panic outside of oops_exit()
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
      af67c3a9
  27. 09 10月, 2009 5 次提交
  29. 05 10月, 2009 1 次提交
  31. 30 9月, 2009 4 次提交