Richard Yao d4bf6d8429 Disable direct reclaim in taskq worker threads on Linux 3.9+ ...

Illumos does not have direct reclaim and code run inside taskq worker
threads is not designed to deal with it. Allowing direct reclaim inside
a worker thread can therefore deadlock. We set PF_MEMALLOC_NOIO through
memalloc_noio_save() to indicate to the kernel's reclaim code that we
are inside a context where memory allocations cannot be allowed to block
on filesystem activity.

Signed-off-by: Richard Yao <ryao@gentoo.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue zfsonlinux/zfs#1274
Issue zfsonlinux/zfs#2390
Closes #474

2015-09-09 14:30:47 -07:00

..

Makefile.in

Support parallel build trees (VPATH builds)

2015-07-17 12:53:11 -07:00

spl-atomic.c

Refresh links to web site

2013-03-04 19:09:34 -08:00

spl-condvar.c

Rename cv_wait_interruptible() to cv_wait_sig()

2015-06-10 16:36:12 -07:00

spl-cred.c

Remove credential configure checks.

2014-10-17 15:11:51 -07:00

spl-err.c

Retire legacy debugging infrastructure

2014-11-19 10:35:07 -08:00

spl-generic.c

Retire spl_module_init()/spl_module_fini()

2015-02-27 13:43:39 -08:00

spl-kmem-cache.c

Invert minclsyspri and maxclsyspri

2015-07-28 13:59:03 -07:00

spl-kmem.c

Optimize vmem_alloc() retry path

2015-02-02 10:57:56 -08:00

spl-kobj.c

Fix GFP_KERNEL allocations flags

2015-01-21 15:25:19 -08:00

spl-kstat.c

Refactor existing code

2015-01-16 13:55:08 -08:00

spl-mutex.c

Remove adaptive mutex implementation

2014-10-17 15:07:28 -07:00

spl-proc.c

Default to --disable-debug-kmem

2015-07-21 11:47:10 -07:00

spl-rwlock.c

Refresh links to web site

2013-03-04 19:09:34 -08:00

spl-taskq.c

Disable direct reclaim in taskq worker threads on Linux 3.9+

2015-09-09 14:30:47 -07:00

spl-thread.c

Retire legacy debugging infrastructure

2014-11-19 10:35:07 -08:00

spl-tsd.c

Fix cstyle issues in spl-tsd.c

2015-04-24 14:23:07 -07:00

spl-vmem.c

Add hooks for disabling direct reclaim

2015-01-16 13:55:09 -08:00

spl-vnode.c

Implement areleasef()

2015-04-24 13:02:37 -07:00

spl-xdr.c

Retire legacy debugging infrastructure

2014-11-19 10:35:07 -08:00

spl-zlib.c

Refactor existing code

2015-01-16 13:55:08 -08:00