Brian Behlendorf 6a95d0b74c Fix NULL deref in balance_pgdat() ... Be careful not to unconditionally clear the PF_MEMALLOC bit in the task structure. It may have already been set when entering zpl_putpage() in which case it must remain set on exit. In particular the kswapd thread will have PF_MEMALLOC set in order to prevent it from entering direct reclaim. By clearing it we allow the following NULL deref to potentially occur. BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff8109c7ab>] balance_pgdat+0x25b/0x4ff Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #287		2011-11-03 10:15:39 -07:00
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avl	Support custom build directories and move includes	2010-09-08 12:38:56 -07:00
nvpair	Support custom build directories and move includes	2010-09-08 12:38:56 -07:00
unicode	Support custom build directories and move includes	2010-09-08 12:38:56 -07:00
zcommon	Illumos #278: get rid zfs of python and pyzfs dependencies	2011-08-01 12:09:36 -07:00
zfs	Fix NULL deref in balance_pgdat()	2011-11-03 10:15:39 -07:00
zpios	Linux 2.6.36 compat, use fops->unlocked_ioctl()	2010-11-10 17:01:08 -08:00
.gitignore	Add .gitignore files to exclude build products	2010-01-08 11:35:17 -08:00
Makefile.in	Fix 'make install' overly broad 'rm'	2011-07-20 09:38:51 -07:00