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authorNicholas Bellinger <nab@linux-iscsi.org>2011-11-30 01:25:21 -0800
committerNicholas Bellinger <nab@linux-iscsi.org>2011-12-14 11:42:13 +0000
commit65586d51e0986be574118286c3d0007e903a2add (patch)
tree0684f76d53e666ffe2a2c77f8e3947d263fa1b75 /include/target
parent40be67f4c588fe2f3e2dbd60ae1f470abc5b6ad8 (diff)
downloadop-kernel-dev-65586d51e0986be574118286c3d0007e903a2add.zip
op-kernel-dev-65586d51e0986be574118286c3d0007e903a2add.tar.gz
target: Drop se_device TCQ queue_depth usage from I/O path
Historically, pSCSI devices have been the ones that required target-core to enforce a per se_device->depth_left. This patch changes target-core to no longer (by default) enforce a per se_device->depth_left or sleep in transport_tcq_window_closed() when we out of queue slots for all backend export cases. Cc: Christoph Hellwig <hch@lst.de> Cc: Roland Dreier <roland@purestorage.com> Cc: Joern Engel <joern@logfs.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include/target')
-rw-r--r--include/target/target_core_base.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 28190dc..cd4caf3 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -798,7 +798,6 @@ struct se_device {
spinlock_t stats_lock;
/* Active commands on this virtual SE device */
atomic_t simple_cmds;
- atomic_t depth_left;
atomic_t dev_ordered_id;
atomic_t execute_tasks;
atomic_t dev_ordered_sync;
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