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  1. 24 7月, 2012 2 次提交
  3. 17 7月, 2012 1 次提交
  5. 02 6月, 2012 1 次提交
  7. 23 5月, 2012 2 次提交
  9. 17 5月, 2012 1 次提交
  11. 24 3月, 2012 3 次提交
  13. 22 3月, 2012 4 次提交
  15. 20 3月, 2012 1 次提交
  17. 20 10月, 2011 2 次提交
    • J
      cifs, freezer: add wait_event_freezekillable and have cifs use it · f06ac72e
      由 Jeff Layton 提交于 
      CIFS currently uses wait_event_killable to put tasks to sleep while
they await replies from the server. That function though does not
allow the freezer to run. In many cases, the network interface may
be going down anyway, in which case the reply will never come. The
client then ends up blocking the computer from suspending.

Fix this by adding a new wait_event_freezable variant --
wait_event_freezekillable. The idea is to combine the behavior of
wait_event_killable and wait_event_freezable -- put the task to
sleep and only allow it to be awoken by fatal signals, but also
allow the freezer to do its job.
Signed-off-by: NJeff Layton <jlayton@redhat.com>
      f06ac72e
    • J
      cifs: add a callback function to receive the rest of the frame · 44d22d84
      由 Jeff Layton 提交于 
      In order to handle larger SMBs for readpages and other calls, we want
to be able to read into a preallocated set of buffers. Rather than
changing all of the existing code to preallocate buffers however, we
instead add a receive callback function to the MID.

cifsd will call this function once the mid_q_entry has been identified
in order to receive the rest of the SMB. If the mid can't be identified
or the receive pointer is unset, then the standard 3rd phase receive
function will be called.
Reviewed-and-Tested-by: NPavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: NJeff Layton <jlayton@redhat.com>
      44d22d84
  19. 13 10月, 2011 1 次提交
  21. 12 8月, 2011 1 次提交
    • S
      [CIFS] Cleanup use of CONFIG_CIFS_STATS2 ifdef to make transport routines more readable · 789e6661
      由 Steve French 提交于 
      Christoph had requested that the stats related code (in
CONFIG_CIFS_STATS2) be moved into helpers to make code flow more
readable.   This patch should help.   For example the following
section from transport.c

                       spin_unlock(&GlobalMid_Lock);
                       atomic_inc(&ses->server->num_waiters);
                       wait_event(ses->server->request_q,
                                  atomic_read(&ses->server->inFlight)
                                    < cifs_max_pending);
                       atomic_dec(&ses->server->num_waiters);
                       spin_lock(&GlobalMid_Lock);

becomes simpler (with the patch below):
                       spin_unlock(&GlobalMid_Lock);
                       cifs_num_waiters_inc(server);
                       wait_event(server->request_q,
                                  atomic_read(&server->inFlight)
                                    < cifs_max_pending);
                       cifs_num_waiters_dec(server);
                       spin_lock(&GlobalMid_Lock);
Reviewed-by: NJeff Layton <jlayton@redhat.com>
CC: Christoph Hellwig <hch@infradead.org>
Signed-off-by: NSteve French <sfrench@us.ibm.com>
Reviewed-by: NPavel Shilovsky <piastry@etersoft.ru>
      789e6661
  23. 04 8月, 2011 1 次提交
  25. 27 5月, 2011 1 次提交
  27. 24 5月, 2011 1 次提交
  29. 23 5月, 2011 3 次提交
  31. 19 5月, 2011 2 次提交
    • J
      cifs: keep BCC in little-endian format · 820a803f
      由 Jeff Layton 提交于 
      This is the same patch as originally posted, just with some merge
conflicts fixed up...

Currently, the ByteCount is usually converted to host-endian on receive.
This is confusing however, as we need to keep two sets of routines for
accessing it, and keep track of when to use each routine. Munging
received packets like this also limits when the signature can be
calulated.

Simplify the code by keeping the received ByteCount in little-endian
format. This allows us to eliminate a set of routines for accessing it
and we can now drop the *_le suffixes from the accessor functions since
that's now implied.

While we're at it, switch all of the places that read the ByteCount
directly to use the get_bcc inline which should also clean up some
unaligned accesses.
Signed-off-by: NJeff Layton <jlayton@redhat.com>
Signed-off-by: NSteve French <sfrench@us.ibm.com>
      820a803f
    • S
      consistently use smb_buf_length as be32 for cifs (try 3) · be8e3b00
      由 Steve French 提交于 
             There is one big endian field in the cifs protocol, the RFC1001
       length, which cifs code (unlike in the smb2 code) had been handling as
       u32 until the last possible moment, when it was converted to be32 (its
       native form) before sending on the wire.   To remove the last sparse
       endian warning, and to make this consistent with the smb2
       implementation  (which always treats the fields in their
       native size and endianness), convert all uses of smb_buf_length to
       be32.

       This version incorporates Christoph's comment about
       using be32_add_cpu, and fixes a typo in the second
       version of the patch.
Signed-off-by: NSteve French <sfrench@us.ibm.com>
Signed-off-by: NPavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: NSteve French <sfrench@us.ibm.com>
      be8e3b00
  33. 11 2月, 2011 1 次提交
    • J
      cifs: don't always drop malformed replies on the floor (try #3) · 71823baf
      由 Jeff Layton 提交于 
      Slight revision to this patch...use min_t() instead of conditional
assignment. Also, remove the FIXME comment and replace it with the
explanation that Steve gave earlier.

After receiving a packet, we currently check the header. If it's no
good, then we toss it out and continue the loop, leaving the caller
waiting on that response.

In cases where the packet has length inconsistencies, but the MID is
valid, this leads to unneeded delays. That's especially problematic now
that the client waits indefinitely for responses.

Instead, don't immediately discard the packet if checkSMB fails. Try to
find a matching mid_q_entry, mark it as having a malformed response and
issue the callback.
Signed-off-by: NJeff Layton <jlayton@redhat.com>
Signed-off-by: NSteve French <sfrench@us.ibm.com>
      71823baf
  35. 05 2月, 2011 1 次提交
  37. 31 1月, 2011 3 次提交
  39. 21 1月, 2011 8 次提交