linux.git/fs/nfs/blocklayout, branch v3.18

nfs: Remove bogus assignment

2014-11-12T19:22:53+00:00

Commit 3a6fd1f004fc (pnfs/blocklayout: remove read-modify-write handling
in bl_write_pagelist) introduced a bogus assignment pg_index = pg_index
in variable initialization. AFAICS it's just a typo so remove it.
Spotted by Coverity (id 1248711).

CC: Christoph Hellwig 
Signed-off-by: Jan Kara 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Trond Myklebust

pnfs/blocklayout: serialize GETDEVICEINFO calls

2014-11-12T19:22:52+00:00

The rpc_pipefs code isn't thread safe, leading to occasional use after
frees when running xfstests generic/241 (dbench).

Signed-off-by: Christoph Hellwig 
Link: http://lkml.kernel.org/r/1411740170-18611-2-git-send-email-hch@lst.de
Cc: stable@vger.kernel.org # 3.17.x
Signed-off-by: Trond Myklebust

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-10-13T14:23:15+00:00

Pull scheduler updates from Ingo Molnar:
 "The main changes in this cycle were:

   - Optimized support for Intel "Cluster-on-Die" (CoD) topologies (Dave
     Hansen)

   - Various sched/idle refinements for better idle handling (Nicolas
     Pitre, Daniel Lezcano, Chuansheng Liu, Vincent Guittot)

   - sched/numa updates and optimizations (Rik van Riel)

   - sysbench speedup (Vincent Guittot)

   - capacity calculation cleanups/refactoring (Vincent Guittot)

   - Various cleanups to thread group iteration (Oleg Nesterov)

   - Double-rq-lock removal optimization and various refactorings
     (Kirill Tkhai)

   - various sched/deadline fixes

  ... and lots of other changes"

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (72 commits)
  sched/dl: Use dl_bw_of() under rcu_read_lock_sched()
  sched/fair: Delete resched_cpu() from idle_balance()
  sched, time: Fix build error with 64 bit cputime_t on 32 bit systems
  sched: Improve sysbench performance by fixing spurious active migration
  sched/x86: Fix up typo in topology detection
  x86, sched: Add new topology for multi-NUMA-node CPUs
  sched/rt: Use resched_curr() in task_tick_rt()
  sched: Use rq->rd in sched_setaffinity() under RCU read lock
  sched: cleanup: Rename 'out_unlock' to 'out_free_new_mask'
  sched: Use dl_bw_of() under RCU read lock
  sched/fair: Remove duplicate code from can_migrate_task()
  sched, mips, ia64: Remove __ARCH_WANT_UNLOCKED_CTXSW
  sched: print_rq(): Don't use tasklist_lock
  sched: normalize_rt_tasks(): Don't use _irqsave for tasklist_lock, use task_rq_lock()
  sched: Fix the task-group check in tg_has_rt_tasks()
  sched/fair: Leverage the idle state info when choosing the "idlest" cpu
  sched: Let the scheduler see CPU idle states
  sched/deadline: Fix inter- exclusive cpusets migrations
  sched/deadline: Clear dl_entity params when setscheduling to different class
  sched/numa: Kill the wrong/dead TASK_DEAD check in task_numa_fault()
  ...

pnfs/blocklayout: Fix a 64-bit division/remainder issue in bl_map_stripe

2014-09-21T18:20:20+00:00

kbuild test robot reports:

   fs/built-in.o: In function `bl_map_stripe':
   >> :(.text+0x965b4): undefined reference to `__aeabi_uldivmod'
   >> :(.text+0x965cc): undefined reference to `__aeabi_uldivmod'
   >> :(.text+0x96604): undefined reference to `__aeabi_uldivmod'

Fixes: 5c83746a0cf2 (pnfs/blocklayout: in-kernel GETDEVICEINFO XDR parsing)
Cc: Stephen Rothwell 
Cc: Christoph Hellwig 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Trond Myklebust

sched, cleanup, treewide: Remove set_current_state(TASK_RUNNING) after schedule()

2014-09-19T10:35:17+00:00

schedule(), io_schedule() and schedule_timeout() always return
with TASK_RUNNING state set, so one more setting is unnecessary.

(All places in patch are visible good, only exception is
 kiblnd_scheduler() from:

      drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c

 Its schedule() is one line above standard 3 lines of unified diff)

No places where set_current_state() is used for mb().

Signed-off-by: Kirill Tkhai 
Signed-off-by: Peter Zijlstra (Intel) 
Link: http://lkml.kernel.org/r/1410529254.3569.23.camel@tkhai
Cc: Alasdair Kergon 
Cc: Anil Belur 
Cc: Arnd Bergmann 
Cc: Dave Kleikamp 
Cc: David Airlie 
Cc: David Howells 
Cc: Dmitry Eremin 
Cc: Frank Blaschka 
Cc: Greg Kroah-Hartman 
Cc: Heiko Carstens 
Cc: Helge Deller 
Cc: Isaac Huang 
Cc: James E.J. Bottomley 
Cc: James E.J. Bottomley 
Cc: J. Bruce Fields 
Cc: Jeff Dike 
Cc: Jesper Nilsson 
Cc: Jiri Slaby 
Cc: Laura Abbott 
Cc: Liang Zhen 
Cc: Linus Torvalds 
Cc: Martin Schwidefsky 
Cc: Masaru Nomura 
Cc: Michael Opdenacker 
Cc: Mikael Starvik 
Cc: Mike Snitzer 
Cc: Neil Brown 
Cc: Oleg Drokin 
Cc: Peng Tao 
Cc: Richard Weinberger 
Cc: Robert Love 
Cc: Steven Rostedt 
Cc: Trond Myklebust 
Cc: Ursula Braun 
Cc: Zi Shen Lim 
Cc: devel@driverdev.osuosl.org
Cc: dm-devel@redhat.com
Cc: dri-devel@lists.freedesktop.org
Cc: fcoe-devel@open-fcoe.org
Cc: jfs-discussion@lists.sourceforge.net
Cc: linux390@de.ibm.com
Cc: linux-afs@lists.infradead.org
Cc: linux-cris-kernel@axis.com
Cc: linux-kernel@vger.kernel.org
Cc: linux-nfs@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-raid@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Cc: qla2xxx-upstream@qlogic.com
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: user-mode-linux-user@lists.sourceforge.net
Signed-off-by: Ingo Molnar

pnfs/blocklayout: include vmalloc.h for __vmalloc

2014-09-15T23:33:28+00:00

Signed-off-by: Stephen Rothwell 
Reviewed-by: Christoph Hellwig 
Signed-off-by: Trond Myklebust

pNFS/blocklayout: Remove a couple of unused variables

2014-09-12T17:34:54+00:00

Cc: Christoph Hellwig 
Signed-off-by: Trond Myklebust

pnfs/blocklayout: in-kernel GETDEVICEINFO XDR parsing

2014-09-12T17:33:50+00:00

This patches moves parsing of the GETDEVICEINFO XDR to kernel space, as well
as the management of complex devices.  The reason for that is we might have
multiple outstanding complex devices after a NOTIFY_DEVICEID4_CHANGE, which
device mapper or md can't handle as they claim devices exclusively.

But as is turns out simple striping / concatenation is fairly trivial to
implement anyway, so we make our life simpler by reducing the reliance
on blkmapd.  For now we still use blkmapd by feeding it synthetic SIMPLE
device XDR to translate device signatures to device numbers, but in the
long runs I have plans to eliminate it entirely.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Trond Myklebust

pnfs/blocklayout: move all rpc_pipefs related code into a single file

2014-09-12T17:33:50+00:00

Create a file to house all the rpc_pipefs boilerplate code instead of
sprinkling it over a few files.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Trond Myklebust

pnfs/blocklayout: refactor extent processing

2014-09-12T17:33:49+00:00

Factor out a helper for all per-extent work, and merge the now trivial
functions for lseg allocation and parsing.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Trond Myklebust