Colin Cross 416ad3c9c0 freezer: add unsafe versions of freezable helpers for NFS ... NFS calls the freezable helpers with locks held, which is unsafe and will cause lockdep warnings when 6aa9707 "lockdep: check that no locks held at freeze time" is reapplied (it was reverted in dbf520a). NFS shouldn't be doing this, but it has long-running syscalls that must hold a lock but also shouldn't block suspend. Until NFS freeze handling is rewritten to use a signal to exit out of the critical section, add new *_unsafe versions of the helpers that will not run the lockdep test when 6aa9707 is reapplied, and call them from NFS. In practice the likley result of holding the lock while freezing is that a second task blocked on the lock will never freeze, aborting suspend, but it is possible to manufacture a case using the cgroup freezer, the lock, and the suspend freezer to create a deadlock. Silencing the lockdep warning here will allow problems to be found in other drivers that may have a more serious deadlock risk, and prevent new problems from being added. Signed-off-by: Colin Cross <ccross@android.com> Acked-by: Pavel Machek <pavel@ucw.cz> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2013-05-12 14:16:21 +02:00
..
9p	Lots of virtio work which wasn't quite ready for last merge window. Plus	2013-05-02 14:14:04 -07:00
802	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-04-22 20:32:51 -04:00
8021q	net: vlan,ethtool: netdev_features_t is more than 32 bit	2013-05-02 13:58:12 -04:00
appletalk	appletalk: info leak in ->getname()	2013-04-25 01:47:58 -04:00
atm	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
ax25	ax25: fix info leak via msg_name in ax25_recvmsg()	2013-04-07 16:28:00 -04:00
batman-adv	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-04-30 03:55:20 -04:00
bluetooth	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
bridge	bridge: fix race with topology change timer	2013-05-03 16:08:58 -04:00
caif	caif: Remove bouncing address for Daniel Martensson	2013-04-23 13:25:51 -04:00
can	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
ceph	libceph: use slab cache for osd client requests	2013-05-02 11:58:41 -05:00
core	gso: Handle Trans-Ether-Bridging protocol in skb_network_protocol()	2013-05-08 13:13:30 -07:00
dcb	rtnetlink: Remove passing of attributes into rtnl_doit functions	2013-03-22 10:31:16 -04:00
dccp	tcp: Remove TCPCT	2013-03-17 14:35:13 -04:00
decnet	decnet: remove duplicated include from dn_table.c	2013-04-07 17:12:01 -04:00
dns_resolver
dsa	dsa: fix freeing of sparse port allocation	2013-03-25 12:23:41 -04:00
ethernet	net: add ETH_P_802_3_MIN	2013-03-28 01:20:42 -04:00
ieee802154	ieee802154/nl-mac.c: make some MLME operations optional	2013-04-08 12:00:16 -04:00
ipv4	gso: Handle Trans-Ether-Bridging protocol in skb_network_protocol()	2013-05-08 13:13:30 -07:00
ipv6	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
ipx
irda	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2013-05-01 14:08:52 -07:00
iucv	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-04-22 20:32:51 -04:00
key	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec	2013-03-27 14:07:04 -04:00
l2tp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-04-07 18:37:01 -04:00
lapb
llc	llc: Fix missing msg_namelen update in llc_ui_recvmsg()	2013-04-07 16:28:01 -04:00
mac80211	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem	2013-04-24 10:54:20 -04:00
mac802154	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-04-30 03:55:20 -04:00
netfilter	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
netlabel	netlabel: fix build problems when CONFIG_IPV6=n	2013-03-08 11:33:51 -05:00
netlink	netlink: kconfig: move mmap i/o into netlink kconfig	2013-05-01 15:02:42 -04:00
netrom	netrom: info leak in ->getname()	2013-04-25 01:47:58 -04:00
nfc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-04-30 03:55:20 -04:00
openvswitch	openvswitch: Remove unneeded ovs_netdev_get_ifindex()	2013-04-30 00:19:11 -04:00
packet	packet: tpacket_v3: do not trigger bug() on wrong header status	2013-05-03 16:10:33 -04:00
phonet	rtnetlink: Remove passing of attributes into rtnl_doit functions	2013-03-22 10:31:16 -04:00
rds	net/rds: zero last byte for strncpy	2013-03-08 00:35:44 -05:00
rfkill	Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next	2013-04-22 14:58:14 -04:00
rose	rose: fix info leak via msg_name in rose_recvmsg()	2013-04-07 16:28:02 -04:00
rxrpc
sched	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2013-05-01 14:08:52 -07:00
sctp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2013-05-01 14:08:52 -07:00
sunrpc	freezer: add unsafe versions of freezable helpers for NFS	2013-05-12 14:16:21 +02:00
tipc	tipc: potential divide by zero in tipc_link_recv_fragment()	2013-05-06 16:16:52 -04:00
unix	af_unix: fix a fatal race with bit fields	2013-05-01 15:13:49 -04:00
vmw_vsock	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-04-30 03:55:20 -04:00
wimax
wireless	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
x25	x25: use proc_remove_subtree()	2013-04-09 14:13:35 -04:00
xfrm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2013-05-02 14:53:12 -07:00
compat.c
Kconfig	netlink: kconfig: move mmap i/o into netlink kconfig	2013-05-01 15:02:42 -04:00
Makefile
nonet.c
socket.c	Merge git://git.infradead.org/users/eparis/audit	2013-05-11 14:29:11 -07:00
sysctl_net.c