Mimi Zohar c09c59e6a0 ima: replace GFP_KERNEL with GFP_NOFS ... While running fsstress tests on the NFSv4 mounted ext3 and ext4 filesystem, the following call trace was generated on the nfs server machine. Replace GFP_KERNEL with GFP_NOFS in ima_iint_insert() to avoid a potential deadlock. ================================= [ INFO: inconsistent lock state ] 2.6.31-31.el6.x86_64 #1 --------------------------------- inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-W} usage. kswapd2/75 [HC0[0]:SC0[0]:HE1:SE1] takes: (jbd2_handle){+.+.?.}, at: [<ffffffff811edd5e>] jbd2_journal_start+0xfe/0x13f {RECLAIM_FS-ON-W} state was registered at: [<ffffffff81091e40>] mark_held_locks+0x65/0x99 [<ffffffff81091f31>] lockdep_trace_alloc+0xbd/0xf5 [<ffffffff81126fdd>] kmem_cache_alloc+0x40/0x185 [<ffffffff812344d7>] ima_iint_insert+0x3d/0xf1 [<ffffffff812345b0>] ima_inode_alloc+0x25/0x44 [<ffffffff811484ac>] inode_init_always+0xec/0x271 [<ffffffff81148682>] alloc_inode+0x51/0xa1 [<ffffffff81148700>] new_inode+0x2e/0x94 [<ffffffff811b2f08>] ext4_new_inode+0xb8/0xdc9 [<ffffffff811be611>] ext4_create+0xcf/0x175 [<ffffffff8113e2cd>] vfs_create+0x82/0xb8 [<ffffffff8113f337>] do_filp_open+0x32c/0x9ee [<ffffffff811309b9>] do_sys_open+0x6c/0x12c [<ffffffff81130adc>] sys_open+0x2e/0x44 [<ffffffff81011e42>] system_call_fastpath+0x16/0x1b [<ffffffffffffffff>] 0xffffffffffffffff irq event stamp: 90371 hardirqs last enabled at (90371): [<ffffffff8112708d>] kmem_cache_alloc+0xf0/0x185 hardirqs last disabled at (90370): [<ffffffff81127026>] kmem_cache_alloc+0x89/0x185 softirqs last enabled at (89492): [<ffffffff81068ecf>] __do_softirq+0x1bf/0x1eb softirqs last disabled at (89477): [<ffffffff8101312c>] call_softirq+0x1c/0x30 other info that might help us debug this: 2 locks held by kswapd2/75: #0: (shrinker_rwsem){++++..}, at: [<ffffffff810f98ba>] shrink_slab+0x44/0x177 #1: (&type->s_umount_key#25){++++..}, at: [<ffffffff811450ba>] Reported-by: Muni P. Beerakam <mbeeraka@in.ibm.com> Reported-by: Amit K. Arora <amitarora@in.ibm.com> Cc: stable@kernel.org Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>		2009-11-19 08:42:01 +11:00
..
integrity/ima	ima: replace GFP_KERNEL with GFP_NOFS	2009-11-19 08:42:01 +11:00
keys	KEYS: get_instantiation_keyring() should inc the keyring refcount in all cases	2009-10-15 15:19:58 -07:00
selinux	do_wait() wakeup optimization: change __wake_up_parent() to use filtered wakeup	2009-09-24 07:20:59 -07:00
smack	seq_file: constify seq_operations	2009-09-23 07:39:29 -07:00
tomoyo	KEYS: Add a keyctl to install a process's session keyring on its parent [try #6]	2009-09-02 21:29:22 +10:00
capability.c	LSM/SELinux: inode_{get,set,notify}secctx hooks to access LSM security context information.	2009-09-10 10:11:24 +10:00
commoncap.c	Security/SELinux: seperate lsm specific mmap_min_addr	2009-08-17 15:09:11 +10:00
device_cgroup.c	cgroups: let ss->can_attach and ss->attach do whole threadgroups at a time	2009-09-24 07:20:58 -07:00
inode.c	securityfs: securityfs_remove should handle IS_ERR pointers	2009-05-12 11:06:11 +10:00
Kconfig	Merge commit 'v2.6.31-rc8' into x86/txt	2009-09-02 08:17:56 +02:00
lsm_audit.c	lsm: Use a compressed IPv6 string format in audit events	2009-09-24 03:50:26 -04:00
Makefile	Security/SELinux: seperate lsm specific mmap_min_addr	2009-08-17 15:09:11 +10:00
min_addr.c	sysctl: remove "struct file *" argument of ->proc_handler	2009-09-24 07:21:04 -07:00
root_plug.c	rootplug: Remove redundant initialization.	2009-05-27 13:30:46 +10:00
security.c	LSM/SELinux: inode_{get,set,notify}secctx hooks to access LSM security context information.	2009-09-10 10:11:24 +10:00