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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-06-03 20:59:19 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2011-07-22 09:37:44 +0000 |
| commit | 695434e1cbd57f404110bf4ab187a5127ffd79bb (patch) | |
| tree | 7d014011669e28498cf3fd210427373992031735 /include/target/target_core_transport.h | |
| parent | 35462975b2b197b990fedbb74b81f9bea9d344cb (diff) | |
| download | lwn-695434e1cbd57f404110bf4ab187a5127ffd79bb.tar.gz lwn-695434e1cbd57f404110bf4ab187a5127ffd79bb.zip | |
target: Add transport_handle_cdb_direct optimization
This patch adds a transport_handle_cdb_direct() optimization for mapping
and queueing tasks directly from within fabric processing context by calling
the newly exported transport_generic_new_cmd(). This currently expects to
be called from process context only, and will fail if called within interrupt
context.
This patch also leaves transport_generic_handle_cdb() unmodified for the
moment to function as expected with existing tcm_fc and ib_srpt fabrics,
and will be removed once these have been converted and tested with v4.1
code using transport_handle_cdb_direct().
Based on Andy's original patch here:
[PATCH 39/42] target: Call transport_new_cmd instead of adding to cmd queue
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'include/target/target_core_transport.h')
| -rw-r--r-- | include/target/target_core_transport.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/target/target_core_transport.h b/include/target/target_core_transport.h index 604e669527b4..2aae76412377 100644 --- a/include/target/target_core_transport.h +++ b/include/target/target_core_transport.h @@ -166,6 +166,7 @@ extern void transport_init_se_cmd(struct se_cmd *, extern void transport_free_se_cmd(struct se_cmd *); extern int transport_generic_allocate_tasks(struct se_cmd *, unsigned char *); extern int transport_generic_handle_cdb(struct se_cmd *); +extern int transport_handle_cdb_direct(struct se_cmd *); extern int transport_generic_handle_cdb_map(struct se_cmd *); extern int transport_generic_handle_data(struct se_cmd *); extern void transport_new_cmd_failure(struct se_cmd *); |