Remove the else because the if statement has a break or return statement.
This patch fixes the following checkpatch warnings:
WARNING:UNNECESSARY_ELSE: else is not generally useful after a break
or return.
Avoid that the compiler complains that the variable 'pad_bytes'
is not used with CONFIG_LIBCRC32C=n.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6314 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
- Now sense data are sent without additional memory allocation and copy
- Sending and receiving padding bytes reimplemented
- Cleanups
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@699 d57e44dd-8a1f-0410-8b47-8ef2f437770f
- 2.6.25 introduced netlink_socket_release(), to be used to clean up netlink sockets correctly (taking care of namespaces).
- New more scalable proc seq_file implementation
+ minor signess cleanups
+ version updated
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@654 d57e44dd-8a1f-0410-8b47-8ef2f437770f
- In scst_local new experimental compile-time option to force direct processing added
- Attempt in SCST structures to separate read-mostly from read-write data to decrease cache ping-pong between CPUs
- In scst_vdisk new module parameter num_threads added to specify a number of threads for each vdisk/vcdrom. Default is 5.
- Debug logging for failed digests in iSCSI-SCST improved
- Docs updates/cleanups
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@635 d57e44dd-8a1f-0410-8b47-8ef2f437770f
the iscsi-scst source code.
This patch has been verified by reviewing it carefully and by verifying the
output files of the command scripts/run-regression-tests -k 2.6.27.6.
Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@571 d57e44dd-8a1f-0410-8b47-8ef2f437770f
code, mainly about lines that exceeded 80 columns. As you can see in the patch
below most lines that were too long have been split, but some code has also
been moved into helper functions in order to keep the code readable. No
functionality has been changed.
This patch has been verified as follows:
- Reread the patch carefully.
- Verified that the iSCSI target kernel module still loads.
- Verified the output generated by scripts/run-regression-tests -k 2.6.27.5.
Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>
with some modifications
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@569 d57e44dd-8a1f-0410-8b47-8ef2f437770f
an external module. When applying the SCST kernel patch to the mainstream
kernel tree with debugging and/or tracing enabled however, the resulting code
triggers a compiler error. This is because the symbols DEBUG and TRACING
conflict with symbols with the same named defined in unrelated kernel headers.
The patch below resolves these conflicts by renaming the following preprocessor
symbols:
- DEBUG into CONFIG_SCST_DEBUG.
- DEBUG_DIGEST_FAILURES into CONFIG_SCST_ISCSI_DEBUG_DIGEST_FAILURES.
- DEBUG_OOM into CONFIG_SCST_DEBUG_OOM.
- DEBUG_RETRY into CONFIG_SCST_DEBUG_RETRY.
- DEBUG_SN into CONFIG_SCST_DEBUG_SN.
- DEBUG_TM into CONFIG_SCST_DEBUG_TM.
- EXTRACHECKS into CONFIG_SCST_EXTRACHECKS.
- SCST_HIGHMEM into CONFIG_SCST_HIGHMEM.
- STRICT_SERIALIZING into CONFIG_SCST_STRICT_SERIALIZING.
- TM_DBG_GO_OFFLINE into CONFIG_SCST_TM_DBG_GO_OFFLINE. Mapped 0/1 values
into macro undefined / macro defined.
- TRACING into CONFIG_SCST_TRACING.
- USE_EXPECTED_VALUES into CONFIG_SCST_USE_EXPECTED_VALUES.
- In qla_isp/linux/isp_scst.c, renamed DEBUG into DEBUG_ISP_SCST.
- In qla_isp/..., renamed SCSI_TARGET in SCST_SCSI_TARGET.
- In qla_isp/..., renamed SCSI_TARGET_DEV in SCST_SCSI_TARGET_DEV.
Additionally, all CONFIG_SCSI_TARGET* macro's are renamed into CONFIG_SCST* in
order to avoid confusion between the STGT CONFIG-symbols and the SCST CONFIG-
symbols.
The following additional options are now configurable through Kconfig:
- CONFIG_SCST_ISCSI_DEBUG_DIGEST_FAILURES
- CONFIG_SCST_STRICT_SERIALIZING
- CONFIG_SCST_STRICT_SECURITY
- CONFIG_SCST_ALLOW_PASSTHROUGH_IO_SUBMIT_IN_SIRQ
- CONFIG_SCST_ABORT_CONSIDER_FINISHED_TASKS_AS_NOT_EXISTING
- CONFIG_SCST_USE_EXPECTED_VALUES
- CONFIG_SCST_DEBUG_OOM
- CONFIG_SCST_DEBUG_RETRY
- CONFIG_SCST_DEBUG_SN
- CONFIG_SCST_DEBUG_TM
- CONFIG_SCST_TM_DBG_GO_OFFLINE
The patch below has been verified as follows:
- Verified that the following command does not print any new warning messages:
make -s clean && make -C srpt -s clean && make -s scst iscsi-scst && make -C srpt -s
- Verified as follows that the internal SCST patches still apply cleanly:
for p in *patch; do patch -p0 --dry-run -f -s <$p; done
- Checked that the patch generated by generate-kernel-patch still applies
cleanly to the 2.6.25.7 kernel, and that the patched kernel tree still
compiles, installs and boots fine, that the iscsi-scst, ib_srpt,
scst_disk and scst_vdisk modules still load, and that iSCSI communication
still works fine. All SCST kernel configuration options that could be
enabled have been enabled during this test.
Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@453 d57e44dd-8a1f-0410-8b47-8ef2f437770f
The patch below fixes the following checkpatch warning:
WARNING: Use #include <linux/...> instead of <asm/...>
This patch has been tested as follows:
- Verified the patch by rereading it.
- Checked that make -s clean && make -s iscsi scst && make -s -C srpt still
works.
- Checked that the patch generated by generate-kernel-patch still applies
cleanly to the 2.6.25.4 kernel, and that the patched kernel tree still
compiles, installs and boots fine, and that the iscsi-scst, ib_srpt,
scst_disk and scst_vdisk modules still load.
Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@399 d57e44dd-8a1f-0410-8b47-8ef2f437770f
The patch below fixes the following checkpatch warning:
__func__ should be used instead of gcc specific __FUNCTION__
This patch has been tested as follows:
- Checked that make iscsi scst still works.
- Checked that after loading the scst module the kernel messages generated
because of the shell command "echo all >/proc/scsi_tg/trace_level" still
make sense. An example:
[ 646.408035] [5845]: scst: scst_proc_log_entry_write:346:Changed trace level for "scsi_tgt": old 0x80005f0e, new 0xffffffff
- Checked that the patch generated by generate-kernel-patch still applies
cleanly to the 2.6.25.4 kernel, that the patched kernel still compiles,
installs and boots and that the scst, iscsi-scst and ib_srpt modules still
load (I performed rm -rf /lib/modules/2.6.25.4* before starting kernel
compilation).
Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@393 d57e44dd-8a1f-0410-8b47-8ef2f437770f
One of the Linux kernel patch submission requirements is that source files do
not contain trailing whitespace. The patch below removes trailing whitespace
from .c and .h source files.
Note: it might be more convenient to run the script I used to generate this
patch than to review and apply the patch below. This is how I generated and
verified the patch below:
cat <<EOF >./strip-trailing-whitespace
#!/bin/bash
trap "rm -f $t" EXIT
t=/tmp/temporary-file.$$
for f in "$@"
do
sed 's/[ ]*$//' <"$f" >"$t" && mv "$t" "$f"
done
EOF
chmod a+x ./strip-trailing-whitespace
find -name '*.[ch]' | xargs ./strip-trailing-whitespace
svn diff -x -w
Signed-off-by: <bart.vanassche@gmail.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@377 d57e44dd-8a1f-0410-8b47-8ef2f437770f
- Minor external interface change: now target drivers should set for aborted commands SCST_CMD_DELIVERY_ABORTED status via scst_set_delivery_status(). In-tree drivers updated.
- Fixed broken compilation if put_page_callback patch not applied to the kernel. Reported by Erez Zilber <erezz@Voltaire.COM>
- Fixed several minor problems reported by David Berton <davidbrt@yahoo.com>
- Fixed __exit misuse, when such functions called from __init functions.
- Docs updated.
- Other minor changes and cleanups.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@364 d57e44dd-8a1f-0410-8b47-8ef2f437770f
- TM fixes related to new commands serialization
- Other TM improvements
- Minor changes: likely/unlikely and priority of mgmt threads
Work not fully completed, still there are some rare issues.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@240 d57e44dd-8a1f-0410-8b47-8ef2f437770f
