mirror_zfs/include
Richard Yao f90096c905 Modify KM_PUSHPAGE to use GFP_NOIO instead of GFP_NOFS
The resolution of issue #31 made KM_PUSHPAGE imply GFP_NOFS.  This
was done to prevent situations where filesystem operations which are
holding locks enter direct reclaim and attempt to reaquire those
same locks.  This clearly will result in a deadlock.

This works for datasets which are implemented in terms for filesystem
operations.  But unfortunately, swapping to a zvol will encounter
many of the same deadlocks and GFP_NOFS will not prevent this.  As
such, it is appropriate to extend KM_PUSHPAGE to use the broader
GFP_NOIO mask to handle these non-filesystem cases.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue zfsonlinux/zfs#342
Closes #105
2012-05-07 12:05:27 -07:00
..
fs Public Release Prep 2010-05-17 15:18:00 -07:00
linux Linux 3.2 compat: rw_semaphore.wait_lock is raw 2012-01-11 16:28:05 -08:00
rpc Public Release Prep 2010-05-17 15:18:00 -07:00
sharefs Public Release Prep 2010-05-17 15:18:00 -07:00
sys Modify KM_PUSHPAGE to use GFP_NOIO instead of GFP_NOFS 2012-05-07 12:05:27 -07:00
util Add missing header util/sscanf.h 2010-06-14 14:20:31 -07:00
vm Public Release Prep 2010-05-17 15:18:00 -07:00
.gitignore sun-misc-gitignore 2010-01-08 09:37:54 -08:00
Makefile.am Add the release component to headers 2012-01-18 11:06:26 -08:00
Makefile.in Cleanly support debug packages 2012-02-27 14:24:22 -08:00
spl-ctl.h Public Release Prep 2010-05-17 15:18:00 -07:00
spl-debug.h Add missing spl_debug_* helpers 2012-02-09 16:41:46 -08:00
spl-device.h Public Release Prep 2010-05-17 15:18:00 -07:00
spl-trace.h Split <sys/debug.h> header 2010-07-20 13:29:35 -07:00
splat-ctl.h Add linux compatibility tests 2011-06-21 14:02:46 -07:00
strings.h Public Release Prep 2010-05-17 15:18:00 -07:00
unistd.h Public Release Prep 2010-05-17 15:18:00 -07:00