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| author |   Nicholas Bellinger <nab@linux-iscsi.org> | 2015-05-20 21:21:08 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-06-01 00:27:56 -0700 |
| commit | 9e37d042cfcb003b885bb4c531cd6f07f62647d1 (patch) | |
| tree | 8f198eb93f269c0ebe7a69b018293e2814316aee /drivers/infiniband/ulp | |
| parent | target: Drop lun_sep_lock for se_lun->lun_se_dev RCU usage (diff) | |
| download | linux-dev-9e37d042cfcb003b885bb4c531cd6f07f62647d1.tar.xz linux-dev-9e37d042cfcb003b885bb4c531cd6f07f62647d1.zip | |
target: Drop se_lun->lun_active for existing percpu lun_ref
With se_port_t and t10_alua_tg_pt_gp_member being absored into se_lun,
there is no need for an extra atomic_t based reference count for PR
ALL_TG_PT=1 and ALUA access state transition.
Go ahead and use the existing percpu se_lun->lun_ref instead, and
convert the two special cases to percpu_ref_tryget_live() to avoid
se_lun if transport_clear_lun_ref() has already been invoked to
shutdown the se_lun.
Cc: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/infiniband/ulp')
0 files changed, 0 insertions, 0 deletions