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authorJörn Engel <joern@logfs.org>2012-04-13 01:35:05 +0400
committerJames Bottomley <JBottomley@Parallels.com>2012-05-17 13:08:57 +0400
commit37b9d1e0017b2d8384ad03d250b15fd3d69771d5 (patch)
tree81f6cfce7563e58ca85c5f9fbb01a526e6da97e1 /COPYING
parent035d12e658fba287a223361bc7dd442dd6737b68 (diff)
downloadlinux-37b9d1e0017b2d8384ad03d250b15fd3d69771d5.tar.xz
[SCSI] sg: remove sg_mutex
With the exception of the detached field, sg_mutex no longer adds any locking. detached handling has been broken before and is still broken and this patch does not seem to make things worse than they were to begin with. However, I have observed cases of tasks being blocked for >200s waiting for sg_mutex. So the removal clearly adds value for very little cost. Signed-off-by: Joern Engel <joern@logfs.org> Acked-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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