There is a race when open sg with O_EXCL flag. Also a race may happen between
sg_open and sg_remove.
Changes from v3:
* release o_sem in sg_release(), not in sg_remove_sfp().
* not set exclude with sfd_lock held.
Vaughan Cao (4):
[SCSI] sg: use rwsem to solve race during exclusive open
[SCSI] sg: no need sg_open_exclusive_lock
[SCSI] sg: checking sdp->detached isn't protected when open
[SCSI] sg: push file descriptor list locking down to per-device
locking
drivers/scsi/sg.c | 186 ++++++++++++++++++++++++++----------------------------
1 file changed, 88 insertions(+), 98 deletions(-)
--
1.7.11.7
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