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  1. 04 8月, 2011 4 次提交
    • T
      NFSv4.1: Fix the callback 'highest_used_slotid' behaviour · 55a67399
      由 Trond Myklebust 提交于 
      Currently, there is no guarantee that we will call nfs4_cb_take_slot() even
though nfs4_callback_compound() will consistently call
nfs4_cb_free_slot() provided the cb_process_state has set the 'clp' field.
The result is that we can trigger the BUG_ON() upon the next call to
nfs4_cb_take_slot().

This patch fixes the above problem by using the slot id that was taken in
the CB_SEQUENCE operation as a flag for whether or not we need to call
nfs4_cb_free_slot().
It also fixes an atomicity problem: we need to set tbl->highest_used_slotid
atomically with the check for NFS4_SESSION_DRAINING, otherwise we end up
racing with the various tests in nfs4_begin_drain_session().

Cc: stable@kernel.org [2.6.38+]
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      55a67399
    • B
      pnfs-obj: Fix the comp_index != 0 case · 9af7db32
      由 Boaz Harrosh 提交于 
      There were bugs in the case of partial layout where olo_comp_index
is not zero. This used to work and was tested but one of the later
cleanup SQUASHMEs broke it and was not tested since.

Also add a dprint that specify those received layout parameters.
Everything else was already printed.

[Needed in v3.0]
CC: Stable Tree <stable@kernel.org>
Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com>
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      9af7db32
    • B
      pnfs-obj: Bug when we are running out of bio · 20618b21
      由 Boaz Harrosh 提交于 
      When we have a situation that the number of pages we want
to encode is bigger then the size of the bio. (Which can
currently happen only when all IO is going to a single device
.e.g group_width==1) then the IO is submitted short and we
report back only the amount of bytes we actually wrote/read
and all is fine. BUT ...

There was a bug that the current length counter was advanced
before the fail to add the extra page, and we come to a situation
that the CDB length was one-page longer then the actual bio size,
which is of course rejected by the osd-target.

While here also fix the bio size calculation, in the case
that we received more then one group of devices.

CC: Stable Tree <stable@kernel.org>
Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com>
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      20618b21
    • H
      nfs: add missing prefetch.h include · 88c9e421
      由 Heiko Carstens 提交于 
      Fix this compile error on s390:

  CC [M]  fs/nfs/blocklayout/blocklayout.o
fs/nfs/blocklayout/blocklayout.c: In function 'bl_end_io_read':
fs/nfs/blocklayout/blocklayout.c:201:4: error: implicit declaration of function 'prefetchw'

Introduced with 9549ec01 "pnfsblock: bl_read_pagelist".

Cc: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
      88c9e421
  3. 01 8月, 2011 28 次提交
  5. 31 7月, 2011 2 次提交
  7. 27 7月, 2011 1 次提交
  9. 26 7月, 2011 3 次提交
  11. 21 7月, 2011 2 次提交