tree 003abeec481756acce963a8c840e7f787d464c97
parent 6acddc5e911bb3a4a007448371ed7317c85669da
author Jörn Engel <joern@logfs.org> 1335298391 -0400
committer James Bottomley <JBottomley@Parallels.com> 1337245735 +0100

[SCSI] sg: protect sdp->exclude

Changes since v1: set_exclude now returns the new value, which gets
rid of the comma expression and the operator precedence bug.  Thanks
to Douglas for spotting it.

sdp->exclude was previously protected by the BKL.  The sg_mutex, which
replaced the BKL, only semi-protected it, as it was missing from
sg_release() and sg_proc_seq_show_debug().  Take an explicit spinlock
for it.

Signed-off-by: Joern Engel <joern@logfs.org>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>