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[SCSI] Revert "sg: use rwsem to solve race during exclusive open"
This reverts commit 15b06f9. This is one of four patches that was causing this bug [ 205.372823] ================================================ [ 205.372901] [ BUG: lock held when returning to user space! ] [ 205.372979] 3.12.0-rc6-hw-debug-pagealloc+ #67 Not tainted [ 205.373055] ------------------------------------------------ [ 205.373132] megarc.bin/5283 is leaving the kernel with locks still held! [ 205.373212] 1 lock held by megarc.bin/5283: [ 205.373285] #0: (&sdp->o_sem){.+.+..}, at: [<ffffffff8161e650>] sg_open+0x3a0/0x4d0 Cc: Vaughan Cao <vaughan.cao@oracle.com> Acked-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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James Bottomley
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James Bottomley
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Oct 25, 2013
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