Bart Van Assche ac72d766a8 IB/srp: Avoid that writing into "add_target" hangs due to a cable pull ... If a cable is pulled while srp_connect_target() is in progress that can result in that function never to return. That makes the process, e.g. srp_daemon, that invoked this function unkillable. Avoid this by letting srp_connect_target() finish if the event IB_CM_TIMEWAIT_EXIT is received. This patch fixes a hang with the following call trace: [<ffffffff814eae85>] schedule_timeout+0x215/0x2e0 [<ffffffff814eab03>] wait_for_common+0x123/0x180 [<ffffffff814eac1d>] wait_for_completion+0x1d/0x20 [<ffffffffa03b398c>] srp_connect_target+0x1dc/0x410 [ib_srp] [<ffffffffa03b5809>] srp_create_target+0xba9/0xe70 [ib_srp] [<ffffffff8133e590>] dev_attr_store+0x20/0x30 [<ffffffff811eb8f5>] sysfs_write_file+0xe5/0x170 [<ffffffff811767c8>] vfs_write+0xb8/0x1a0 [<ffffffff811770c1>] sys_write+0x51/0x90 [<ffffffff8100b072>] system_call_fastpath+0x16/0x1b Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Roland Dreier <roland@purestorage.com>		2014-03-24 10:05:31 -07:00
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ib_srp.c	IB/srp: Avoid that writing into "add_target" hangs due to a cable pull	2014-03-24 10:05:31 -07:00
ib_srp.h	IB/srp: Avoid duplicate connections	2014-03-24 10:05:31 -07:00
Kbuild	IB: Add SCSI RDMA Protocol (SRP) initiator	2005-11-02 14:07:13 -08:00
Kconfig	[SCSI] ib_srp: convert to use the srp transport class	2007-10-12 14:37:42 -04:00