There is a race when open sg with O_EXCL flag. Also a race may happen between sg_open and sg_remove. Changes from v5: Patches based on v3.11-rc7 and passed sg_tst_excl test. * [1/4] * remove unused variables - res,sdp. * fix insane code dealing with sg_add_sfp. * [2/4] resolve conflict with v3.11-rc7. * [3/4] remove sem_out label. * [4/4] add sdp definition. Changes from v4: * [3/4] use ERR_PTR series instead of adding another parameter in sg_add_sfp * [4/4] fix conflict for cherry-pick from v3. Changes from v3: * release o_sem in sg_release(), not in sg_remove_sfp(). * not set exclude with sfd_lock held. Vaughan Cao (4): sg: use rwsem to solve race during exclusive open sg: no need sg_open_exclusive_lock sg: checking sdp->detached isn't protected when open sg: push file descriptor list locking down to per-device locking drivers/scsi/sg.c | 173 +++++++++++++++++++++++++----------------------------- 1 file changed, 80 insertions(+), 93 deletions(-) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
