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Date: Thu, 29 Aug 2013 10:00:35 +0800 From: Vaughan Cao <vaughan.cao@...cle.com> To: James.Bottomley@...senPartnership.com Cc: joern@...fs.org, vaughan.cao@...cle.com, dgilbert@...erlog.com, JBottomley@...allels.com, linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH v7 0/4][SCSI] sg: fix race condition in sg_open There is a race when open sg with O_EXCL flag. Also a race may happen between sg_open and sg_remove. Changes from v6: * [1/4] remove double if. * [3/4] fix via IS_ERR 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 | 176 +++++++++++++++++++++++++----------------------------- 1 file changed, 81 insertions(+), 95 deletions(-) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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