into a new macro called wait_event_locked().
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
+
Micro-optimize wait_event_locked(). Switch from default_wake_function() to
autoremove_wake_function() (via DEFINE_WAIT()). The result is that
wait_queue_head_t.lock is locked once instead of twice for wakeup + wait queue
removal.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@3591 d57e44dd-8a1f-0410-8b47-8ef2f437770f
The kernel module iscsi_scst loads again on RHEL 5 (Fixed "iscsi_scst: Unknown symbol set_cpus_allowed_ptr").
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@2406 d57e44dd-8a1f-0410-8b47-8ef2f437770f
- __attribute__((aligned(sizeof(long))) added to all field with different protection than the previous field to make sure they don't share the same bus line. Just in case, actually, compiler should do the alignment by default.
- Small docs updates.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1948 d57e44dd-8a1f-0410-8b47-8ef2f437770f
- ISCSI preliminary completed commands handling fixes
- Write residuals cleanups and fixes
- Interface to handle residuals and received from initiators data changed
- BIDI cleanups and fixes.
- All BIDI IN fields and functions renamed to OUT to be in line with the in-kernel convention
+
Docs updated
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1780 d57e44dd-8a1f-0410-8b47-8ef2f437770f
iSCSI-SCST: A huge improvements in errors recovery and iSCSI RFC complaince as well as performance. Also:
- Fixes and improvements for MaxOutstandingR2T>1
- Flow control tracing added.
- Cleanups
SCST core:
- Now for scst_cmd_init_stage1_done() commands preprocessing_done() is always called before xmit_response(), even in case of abort or error.
- Fixed recently introduced bug, which can lead to sending responses for aborted commands after reply on the corresponding TM command already sent.
- Flow control tracing added.
- Now it is possible to call functions setting commands execution status (e.g., scst_set_cmd_error_status()) several times for the same command. Only the first call will be completed, other calls - ignored.
- All commands are counted and shown in proc/sysfs now. Before only active, i.e. not yet executed commands, were counted and shown there.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1431 d57e44dd-8a1f-0410-8b47-8ef2f437770f
- iSCSI read state machine cleanups
- Fix a race when just freed iSCSI session accessed, because the corresponding SCST session is still being unregistered.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1224 d57e44dd-8a1f-0410-8b47-8ef2f437770f
now report functions that are called with a lock held but that are missing
__acquires() and __releases() annotations. The patch below adds such
annotations and makes the following sparse warnings disappear:
drivers/scst/iscsi-scst/iscsi.c:2861:9: warning: context imbalance in 'iscsi_check_send_delayed_tm_resp' - unexpected unlock
drivers/scst/iscsi-scst/nthread.c:1614:17: warning: context imbalance in 'scst_do_job_wr' - unexpected unlock
drivers/scst/iscsi-scst/iscsi.c:2861:9: warning: context imbalance in 'iscsi_check_send_delayed_tm_resp' - unexpected unlock
drivers/scst/iscsi-scst/nthread.c:1614:17: warning: context imbalance in 'scst_do_job_wr' - unexpected unlock
drivers/scst/scst_local/scst_local.c:554:30: warning: context imbalance in 'scst_local_queuecommand' - unexpected unlock
The patch below has been tested by comparing the output of
"scripts/run-regression-tests 2.6.30.3" before and after the patch was applied.
Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@982 d57e44dd-8a1f-0410-8b47-8ef2f437770f
