Roland Dreier 24bce50803 IB/umem: Fix possible hang on process exit ... If ib_umem_release() is called after ib_uverbs_close() sets context->closing, then a process can get stuck in a D state, because the code boils down to if (down_write_trylock(&mm->mmap_sem)) down_write(&mm->mmap_sem); which is obviously a stupid instant deadlock. Fix the code so that we only try to take the lock once. This bug was introduced in commit f7c6a7b5 ("IB/uverbs: Export ib_umem_get()/ib_umem_release() to modules") which fortunately never made it into a release, and was reported by Pete Wyckoff <pw@osc.edu>. Signed-off-by: Roland Dreier <rolandd@cisco.com>		2007-06-21 11:05:58 -07:00
..
Makefile	IB/uverbs: Export ib_umem_get()/ib_umem_release() to modules	2007-05-08 18:00:37 -07:00
addr.c	IB: Remove redundant "_wq" from workqueue names	2007-02-10 08:00:50 -08:00
agent.c	IB/mad: Simplify SMI by eliminating smi_check_local_dr_smp()	2006-03-20 10:08:11 -08:00
agent.h	[PATCH] missing include in infiniband	2005-10-29 10:35:07 -07:00
cache.c	Detach sched.h from mm.h	2007-05-21 09:18:19 -07:00
cm.c	IB/cm: Fix stale connection detection	2007-05-29 16:07:09 -07:00
cm_msgs.h	[IB] cm: Add missing break in switch	2005-10-20 12:29:36 -07:00
cma.c	RDMA/cma: Fix initialization of next_port	2007-06-07 23:24:38 -07:00
core_priv.h	[PATCH] IB: move include files to include/rdma	2005-08-26 20:37:38 -07:00
device.c	Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband	2007-05-21 16:19:32 -07:00
fmr_pool.c	IB/fmr_pool: Add prefix to all printks	2007-05-06 21:18:11 -07:00
iwcm.c	PCI: Cleanup the includes of <linux/pci.h>	2007-05-02 19:02:35 -07:00
iwcm.h	RDMA: iWARP Connection Manager.	2006-09-22 15:22:46 -07:00
mad.c	IB: Add CQ comp_vector support	2007-05-06 21:18:11 -07:00
mad_priv.h	PCI: Cleanup the includes of <linux/pci.h>	2007-05-02 19:02:35 -07:00
mad_rmpp.c	WorkStruct: make allyesconfig	2006-11-22 14:57:56 +00:00
mad_rmpp.h	[IB] Fix MAD layer DMA mappings to avoid touching data buffer once mapped	2005-10-25 10:51:39 -07:00
multicast.c	PCI: Cleanup the includes of <linux/pci.h>	2007-05-02 19:02:35 -07:00
packer.c	[PATCH] fix remaining missing includes	2005-11-07 07:53:41 -08:00
sa.h	IB/sa: Track multicast join/leave requests	2007-02-16 14:20:02 -08:00
sa_query.c	PCI: Cleanup the includes of <linux/pci.h>	2007-05-02 19:02:35 -07:00
smi.c	IB/mad: Change SMI to use enums rather than magic return codes	2007-04-24 16:31:12 -07:00
smi.h	IB/mad: Change SMI to use enums rather than magic return codes	2007-04-24 16:31:12 -07:00
sysfs.c	IB: Set class_dev->dev in core for nice device symlink	2007-04-24 21:30:38 -07:00
ucm.c	IB/ucm: Simplify ib_ucm_event()	2007-04-24 16:31:11 -07:00
ucma.c	RDMA/ucma: Simplify ucma_get_event()	2007-04-24 16:31:11 -07:00
ud_header.c	[PATCH] fix remaining missing includes	2005-11-07 07:53:41 -08:00
umem.c	IB/umem: Fix possible hang on process exit	2007-06-21 11:05:58 -07:00
user_mad.c	PCI: Cleanup the includes of <linux/pci.h>	2007-05-02 19:02:35 -07:00
uverbs.h	IB/uverbs: Export ib_umem_get()/ib_umem_release() to modules	2007-05-08 18:00:37 -07:00
uverbs_cmd.c	IB/uverbs: Export ib_umem_get()/ib_umem_release() to modules	2007-05-08 18:00:37 -07:00
uverbs_main.c	IB/uverbs: Export ib_umem_get()/ib_umem_release() to modules	2007-05-08 18:00:37 -07:00
uverbs_marshall.c	RDMA/cma: Export rdma cm interface to userspace	2006-12-12 11:50:22 -08:00
verbs.c	IB: Add CQ comp_vector support	2007-05-06 21:18:11 -07:00