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Bart Van Assche
02d6dc9860
- Changed default value for the kernel module parameter thread from 0 to 1 because mode 0 can trigger soft lockup complaints under sufficient load. - Changed default value for the kernel module parameter srpt_autodetect_cred_req from false to true. Non-functional changes: - Removed several superfluous casts in ib_srpt.c. Performance-related changes: - Rearranged if/then/else statements such that the most frequently executed code occurs first. - When SCST_MAX_TGT_DEV_COMMANDS > 128, the SRP receive queue size is now SCST_MAX_TGT_DEV_COMMANDS instead of 128. Bug fixes: - Fixed performance bug in modes thread=0 and 2. - Fixed a bug in IB send queue overflow handling. - Fixed race related to IB completion thread creation (mode thread=1). - Made sure that the following warning is no longer triggered during module removal: WARNING: at fs/proc/generic.c:825 remove_proc_entry+0x261/0x2f0() Call Trace: [<ffffffff8104d74b>] warn_slowpath_common+0x7b/0xc0 [<ffffffff8104d7f1>] warn_slowpath_fmt+0x41/0x50 [<ffffffff8116e8a1>] remove_proc_entry+0x261/0x2f0 [<ffffffff810832c8>] ? debug_check_no_locks_freed+0xc8/0x150 [<ffffffff81082ecb>] ? mark_held_locks+0x6b/0xa0 [<ffffffff8110f95f>] ? kfree+0xcf/0x180 [<ffffffff810831a5>] ? trace_hardirqs_on_caller+0x145/0x190 [<ffffffff810831fd>] ? trace_hardirqs_on+0xd/0x10 [<ffffffffa05835c2>] srpt_unregister_procfs_entry+0x22/0x40 [ib_srpt] [<ffffffffa0583aba>] srpt_release+0x8a/0x1a0 [ib_srpt] [<ffffffffa04cbcc0>] scst_unregister_target+0x70/0x3f0 [scst] [<ffffffff811bf6d7>] ? kobject_put+0x27/0x60 [<ffffffff8126ff67>] ? put_device+0x17/0x20 [<ffffffffa058587e>] srpt_remove_one+0xee/0x1a0 [ib_srpt] [<ffffffffa03ddfc5>] ib_unregister_client+0x65/0x120 [ib_core] [<ffffffffa0588f43>] srpt_cleanup_module+0x5f/0xc3 [ib_srpt] [<ffffffff8108e8dd>] sys_delete_module+0x1bd/0x280 [<ffffffff8135e5ad>] ? retint_swapgs+0xe/0x13 [<ffffffff810831a5>] ? trace_hardirqs_on_caller+0x145/0x190 [<ffffffff810030db>] system_call_fastpath+0x16/0x1b ---[ end trace 3fc26663490f6a89 ]--- git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1901 d57e44dd-8a1f-0410-8b47-8ef2f437770f