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v3.3
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151 Commits

Author SHA1 Message Date
Bart Van Assche
baa9d2513f Change version number to 3.3.0 
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.3.x@7786 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2018-11-04 20:06:20 +00:00
Bart Van Assche
a1b700a553 Merge r7525 from trunk 
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.3.x@7778 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2018-11-04 17:36:31 +00:00
Bart Van Assche
658a4ad513 Merge r7525 from trunk 
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.3.x@7777 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2018-11-04 17:14:21 +00:00
Bart Van Assche
128f1c2add Merge r7518 from trunk 
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.3.x@7770 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2018-11-04 17:03:58 +00:00
Bart Van Assche
5fa304cce4 Merge r7504 from trunk 
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.3.x@7756 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2018-11-04 16:07:44 +00:00
Bart Van Assche
27d988ca2f Merge r7396 from trunk 
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.3.x@7749 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2018-11-04 16:00:42 +00:00
Bart Van Assche
4a52c21706 fcst: Suppress a set-but-not-used variable warning 
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.3.x@7558 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2018-11-01 04:22:54 +00:00
Bart Van Assche
8b3dd95815 fcst: Suppress kernel-doc warnings 
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.3.x@7557 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2018-11-01 04:20:17 +00:00
Bart Van Assche
7a98a4d096 fcst: Merge r7247 from trunk 
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.3.x@7527 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2018-11-01 03:44:26 +00:00
Bart Van Assche
3cdb7f4516 fcst: Merge r7243 from trunk 
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.3.x@7526 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2018-11-01 02:01:16 +00:00
Vladislav Bolkhovitin
129cac067c Merged revisions 7253-7266,7268-7271 via svnmerge from 
svn+ssh://svn.code.sf.net/p/scst/svn/trunk

........
  r7253 | vlnb | 2017-10-11 20:22:02 -0700 (Wed, 11 Oct 2017) | 3 lines
  
  scst: add example of active non-optimized setup
........
  r7254 | bvassche | 2017-10-12 07:56:44 -0700 (Thu, 12 Oct 2017) | 1 line
  
  qla2x00t: Fix scst_debug.h include path for the in-tree build
........
  r7255 | bvassche | 2017-10-12 08:03:13 -0700 (Thu, 12 Oct 2017) | 1 line
  
  scripts/specialize-patch: Fix #elif handling
........
  r7256 | vlnb | 2017-10-13 19:18:56 -0700 (Fri, 13 Oct 2017) | 3 lines
  
  Unpdate for kernels 4.12+
........
  r7257 | bvassche | 2017-11-11 21:01:16 -0800 (Sat, 11 Nov 2017) | 1 line
  
  iscsi-scst/usr/Makefile: Pass -Wno-format-truncation if supported
........
  r7258 | bvassche | 2017-11-12 21:48:16 -0800 (Sun, 12 Nov 2017) | 4 lines
  
  ib_srpt: Kernel 4.14 build fix
  
  Signed-off-by: Peter Vyazovik <fuzzhead0@gmail.com>
........
  r7259 | bvassche | 2017-11-12 21:49:08 -0800 (Sun, 12 Nov 2017) | 1 line
  
  scst: Introduce the kernel v4.14 bio_set_dev() macro
........
  r7260 | bvassche | 2017-11-12 21:50:44 -0800 (Sun, 12 Nov 2017) | 5 lines
  
  scst, iscsi-scst: Introduce scst_read(), scst_write(), scst_readv() and scst_writev()
  
  This makes it easier to add support for new kernel versions, e.g. kernel
  version v4.14.
........
  r7261 | bvassche | 2017-11-13 08:00:09 -0800 (Mon, 13 Nov 2017) | 1 line
  
  scst/src/scst_lib.c: Fix recently introduced checkpatch complaints
........
  r7262 | bvassche | 2017-11-13 08:18:00 -0800 (Mon, 13 Nov 2017) | 4 lines
  
  scst: Fix build for kernels 3.15 and older
  
  blk_rq_set_block_pc() was introduced in kernel 3.16.
........
  r7263 | bvassche | 2017-11-13 08:24:16 -0800 (Mon, 13 Nov 2017) | 1 line
  
  nightly build: Update kernel versions
........
  r7264 | bvassche | 2017-11-13 08:47:10 -0800 (Mon, 13 Nov 2017) | 1 line
  
  scst: Address two checkpatch warnings
........
  r7265 | bvassche | 2017-11-13 08:47:43 -0800 (Mon, 13 Nov 2017) | 1 line
  
  scst/src/scst_targ: Use READ_ONCE() instead of ACCESS_ONCE()
........
  r7266 | bvassche | 2017-11-13 08:49:39 -0800 (Mon, 13 Nov 2017) | 1 line
  
  fcst/fcst.h: Add identifier names
........
  r7268 | bvassche | 2017-11-14 08:37:24 -0800 (Tue, 14 Nov 2017) | 1 line
  
  scst: Fix kernel <= 2.6.30 build
........
  r7269 | bvassche | 2017-11-14 18:45:57 -0800 (Tue, 14 Nov 2017) | 1 line
  
  nightly/bin/nightly: Clone the source code tree quietly
........
  r7270 | bvassche | 2017-11-14 18:47:06 -0800 (Tue, 14 Nov 2017) | 1 line
  
  nightly build: Update kernel versions
........
  r7271 | bvassche | 2017-11-14 18:48:03 -0800 (Tue, 14 Nov 2017) | 1 line
  
  nightly/conf/nightly.sendmail: Use mail if mutt is not available
........


git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.3.x@7288 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2017-12-23 04:30:51 +00:00
Vladislav Bolkhovitin
491ca9cd95 Merged revisions 7247-7251 via svnmerge from 
svn+ssh://svn.code.sf.net/p/scst/svn/trunk

........
  r7247 | bvassche | 2017-10-06 08:08:00 -0700 (Fri, 06 Oct 2017) | 4 lines
  
  fcst: Fix in-tree build
  
  See also r7243.
........
  r7248 | bvassche | 2017-10-09 11:10:48 -0700 (Mon, 09 Oct 2017) | 4 lines
  
  scst_vdisk: Fix a bug in the Linux kernel v4.13 port
  
  See also trunk r7240.
........
  r7249 | bvassche | 2017-10-09 11:15:00 -0700 (Mon, 09 Oct 2017) | 4 lines
  
  scst: Fix SCSI pass-through for kernel version v4.11 and later
  
  See also trunk r7153.
........
  r7250 | bvassche | 2017-10-09 12:58:15 -0700 (Mon, 09 Oct 2017) | 1 line
  
  scst/include/backport.h: Follow-up for r7248
........
  r7251 | vlnb | 2017-10-09 19:06:13 -0700 (Mon, 09 Oct 2017) | 5 lines
  
  qla2x00t: update FW version information as suggested by Jens-U. Mozdzen <jmozdzen@nde.ag>
  
  See https://sourceforge.net/p/scst/mailman/message/36068827/
........


git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.3.x@7252 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2017-10-10 02:18:39 +00:00
Vladislav Bolkhovitin
e5d322d4ab Merged revisions 7233-7244 via svnmerge from 
svn+ssh://svn.code.sf.net/p/scst/svn/trunk

........
  r7233 | bvassche | 2017-09-20 08:09:38 -0700 (Wed, 20 Sep 2017) | 4 lines
  
  ib_srpt: Support systems with more than 255 CPU cores
  
  Signed-off-by: Kirill Malkin <kirillmalkin.km@gmail.com>
........
  r7234 | bvassche | 2017-09-24 18:52:53 -0700 (Sun, 24 Sep 2017) | 2 lines
  
  iscsi-scst/Makefile: Change MOFED path into /usr/src/ofa_kernel/default
........
  r7235 | bvassche | 2017-09-25 16:35:49 -0700 (Mon, 25 Sep 2017) | 1 line
  
  iscsi-scst/Makefile, Ubuntu: Simplify code for version querying
........
  r7236 | bvassche | 2017-10-02 16:56:47 -0700 (Mon, 02 Oct 2017) | 1 line
  
  scripts/specialize-patch: Process ENABLE_NPIV and FC_VPORT_CREATE_DEFINED correctly
........
  r7237 | bvassche | 2017-10-02 17:04:53 -0700 (Mon, 02 Oct 2017) | 2 lines
  
  scripts/generate-kernel-patch: Fix a regression introduced in r7164
........
  r7238 | bvassche | 2017-10-02 17:05:42 -0700 (Mon, 02 Oct 2017) | 1 line
  
  scripts/specialize-patch: Process CONFIG_SCST_STRICT_SERIALIZING correctly
........
  r7239 | bvassche | 2017-10-03 15:49:35 -0700 (Tue, 03 Oct 2017) | 1 line
  
  isert-scst: Make an error message more informative
........
  r7240 | bvassche | 2017-10-03 16:08:29 -0700 (Tue, 03 Oct 2017) | 1 line
  
  scst: Port to kernel v4.13
........
  r7241 | bvassche | 2017-10-03 16:10:03 -0700 (Tue, 03 Oct 2017) | 1 line
  
  nightly build: Update kernel versions
........
  r7242 | bvassche | 2017-10-05 09:57:27 -0700 (Thu, 05 Oct 2017) | 1 line
  
  scst: Port to openSUSE Leap 42.x
........
  r7243 | bvassche | 2017-10-05 16:48:25 -0700 (Thu, 05 Oct 2017) | 1 line
  
  fcst: Port to openSUSE Leap
........
  r7244 | bvassche | 2017-10-05 16:48:51 -0700 (Thu, 05 Oct 2017) | 1 line
  
  qla2x00t: Port to openSUSE Leap
........


git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.3.x@7246 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2017-10-06 04:51:04 +00:00
Vladislav Bolkhovitin
3bd81edc6e Version changed to 3.3.0-rc 
git-svn-id: http://svn.code.sf.net/p/scst/svn/branches/3.3.x@7227 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2017-09-01 03:57:09 +00:00
Bart Van Assche
cb070d9a7f scst/include/backport.h: Add a backport of rcu_dereference_protected() 
This patch does not change any functionality.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@7179 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2017-05-14 03:13:56 +00:00
Bart Van Assche
b4118ea0f1 scst/include/backport.h: Add a kref_read() backport 
This patch does not change any functionality.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@7178 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2017-05-14 03:06:54 +00:00
Vladislav Bolkhovitin
69feb6696e fcst: Linux kernel v4.11 build fix 
Linux kernel v4.11 build fix.

Signed-off-by: Sebastian Herbszt <herbszt@gmx.de>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@7173 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2017-05-11 04:00:29 +00:00
Vladislav Bolkhovitin
68fa7e1a0d Copyright updates 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@7146 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2017-04-22 03:19:52 +00:00
Vladislav Bolkhovitin
89a939536f fcst: Linux kernel v4.10 build fix 
Signed-off-by: Sebastian Herbszt <herbszt@gmx.de>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@7135 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2017-04-18 04:02:44 +00:00
Bart Van Assche
df048bde68 fcst: Bump version number 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6989 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2016-10-04 05:24:49 +00:00
Bart Van Assche
5bbc7433dc scst: Move kref_get_unless_zero() definition to <scst/backport.h> 
This patch is a slightly modified version of a patch supplied by
Israel Rukshin <israelr@mellanox.com>.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6875 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2016-04-26 04:13:42 +00:00
Bart Van Assche
4dfb9d10c7 fcst: Change "signed" into "signed int" 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6845 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2016-03-27 15:57:41 +00:00
Bart Van Assche
45a032c357 fcst: Remove a CVS keyword marker 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6844 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2016-03-27 15:57:03 +00:00
Vladislav Bolkhovitin
fa2f54ac9e Copyrights updated 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6787 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2016-01-22 04:04:43 +00:00
Vladislav Bolkhovitin
5f7ac7f4bf Version updated to 3.2.0 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6593 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-11-06 06:17:17 +00:00
Bart Van Assche
69569b0cdf fcst: Display RXID in SCST error messages 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6345 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:46:17 +00:00
Vladislav Bolkhovitin
906f4dfefb Merge t10-pi branch back 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6192 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-05-01 04:21:56 +00:00
Bart Van Assche
c32f79f6c1 Revert T10-PI support 
The T10-PI patch (r6162) increases the time needed to run mkfs.ext4
over iSCSI from less than a second to several minutes. This is a
regression so revert the T10-PI patch until there is sufficient time
to find the root cause of this regression and to fix this regression.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6171 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-03-31 09:51:24 +00:00
Bart Van Assche
a3f4f28711 Build fixes - follow-up for r6162 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6164 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-03-29 17:32:59 +00:00
Vladislav Bolkhovitin
fe38e4acb2 Copyrights updated 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6146 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-03-19 00:01:03 +00:00
Vladislav Bolkhovitin
4ac6d7a26d [PATCH] scst: Drop detect() method 
There is no need for a detect() method - code that is present in such
a method can be moved to module_init(). Hence declare this method
obsolete. Leave the detect pointer member in the target template for
now for out-of-tree SCST drivers.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>

with some improvements



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6113 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-02-21 04:32:36 +00:00
Bart Van Assche
548ea345b5 Build fixes for RHEL 6.6 kernel 2.6.32-504 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5886 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-11-26 13:38:52 +00:00
Bart Van Assche
bdbb2b0c46 fcst: Change version number from 0.3 into 3.1.0-pre 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5801 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-09-12 11:20:16 +00:00
Bart Van Assche
803ea9ef61 fcst/Makefile: Add release-archive target 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5798 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-09-12 11:16:35 +00:00
Bart Van Assche
e902f79ecf kernel module installation: Skip "depmod" when building an RPM 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5612 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-06-19 12:48:25 +00:00
Bart Van Assche
732ce5ca89 fcst: Handle frame send failures properly 
Retry sending XFER_RDY, data and response frames if the network
driver reports that sending failed (-ENOMEM) instead of reporting
a kernel warning (WARN_ON(1)). If sending XFER_RDY or data frames
failed for another reason, report this to the initiator as a
write error (ASC = 03; ASCQ = 00 which stands for PERIPHERAL
DEVICE WRITE FAULT). If sending a response frame failed with
another error code than -ENOMEM, do not send a response.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5607 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-06-14 17:18:34 +00:00
Bart Van Assche
d937c0886d fcst: Move exch_done() calls into ft_cmd_done() 
This patch ensures that exch_done() gets called if an fcst
callback returns SCST_TGT_RES_FATAL_ERROR.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5606 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-06-14 17:17:56 +00:00
Bart Van Assche
b32ef39546 fcst: Remove an unused variable 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5605 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-06-14 17:10:58 +00:00
Vladislav Bolkhovitin
6dab45204c scst: Leave out FSF mail address 
This avoids that the following checkpatch complaint is triggered:

Do not include the paragraph about writing to the Free Software Foundation's
mailing address from the sample GPL notice. The FSF has changed addresses in
the past, and may do so again. Linux already includes a copy of the GPL.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5572 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-06-06 03:24:03 +00:00
Bart Van Assche
7d89372c53 Makefiles: respect DESTDIR when specified 
Not all SCST components handle DESTDIR properly, or at all.

In particular:
* INSTALL_MOD_PATH should account for DESTDIR when 'make modules_install'
  is invoked, so the kernel make infrastructure deploys the modules
  and runs depmod against the proper directory tree.
* depmods must include a '-b' option to reference the proper directory tree.
* Drop special ISCSI_DESTDIR.

Signed-off-by: Steven J. Magnani <steve@digidescorp.com>


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5289 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-02-18 08:40:36 +00:00
Bart Van Assche
79b8ce942e Makefiles: calculate KVER properly 
When deriving the kernel version (KVER) from KDIR, the file
$(KDIR)/include/config/kernel.release should be preferred over
'make kernelversion'.

For example, the Ubuntu 3.2.0-23-generic kernel has a kernel.release
file containing '3.2.0-23-generic', but 'make kernelversion' returns
3.2.14. Since the modules are stored under /lib/modules/3.2.0-23-generic,
the value in kernel.release is the correct one to use.
    
Also:
- Evaluate KVER only once
- All depmod commands must include KVER
    
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
[bvanassche: Split long lines / removed trailing whitespace]


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5286 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-02-14 15:52:10 +00:00
Bart Van Assche
e07a91e8a0 Makefiles: remove redundant 'depmod' invocations 
Running 'make modules_install' already triggers invocation of depmod,
hence leave it out from those Makefiles that use 'make modules_install'.

Signed-off-by: Steven J. Magnani <steve@digidescorp.com>


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5283 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-02-14 13:05:55 +00:00
Bart Van Assche
adb3c46798 fcst: Increase ft_scst_template.sg_tablesize 
The libfc implementation can handle long SG lists, hence increase
ft_scst_template.sg_tablesize from 128 to 65535.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5223 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-01-24 10:32:43 +00:00
Bart Van Assche
a57c9d0cee fcst: Fix a potential deadlock 
This patch fixes the following lockdep warning:

======================================================
[ INFO: possible circular locking dependency detected ]
3.13.0-rc6-debug+ #5 Tainted: G        W  O
-------------------------------------------------------
rmmod/8653 is trying to acquire lock:
 (scst_tgt_kref){+.+.+.}, at: [<ffffffffa033de6f>] scst_tgt_sysfs_put+0x10f/0x190 [scst]

but task is already holding lock:
 (ft_lport_lock){+.+.+.}, at: [<ffffffffa029d3db>] ft_lport_del+0x1b/0x40 [fcst]

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #1 (ft_lport_lock){+.+.+.}:
       [<ffffffff8109b4b4>] lock_acquire+0xa4/0x1e0
       [<ffffffff81559837>] mutex_lock_nested+0x77/0x430
       [<ffffffffa029d5a0>] ft_tgt_enable+0x20/0xd0 [fcst]
       [<ffffffffa0335c99>] scst_process_tgt_enable_store+0xe9/0x230 [scst]
       [<ffffffffa0335dfc>] scst_tgt_enable_store_work_fn+0x1c/0x20 [scst]
       [<ffffffffa0338ebc>] scst_process_sysfs_works+0xfc/0x1f0 [scst]
       [<ffffffffa033d180>] sysfs_work_thread_fn+0x120/0x2b0 [scst]
       [<ffffffff81074850>] kthread+0xf0/0x110
       [<ffffffff815663fc>] ret_from_fork+0x7c/0xb0

-> #0 (scst_tgt_kref){+.+.+.}:
       [<ffffffff8109a95b>] __lock_acquire+0x17ab/0x1b10
       [<ffffffff8109b4b4>] lock_acquire+0xa4/0x1e0
       [<ffffffffa03375b9>] scst_kobject_put_and_wait+0x99/0x260 [scst]
       [<ffffffffa033de6f>] scst_tgt_sysfs_put+0x10f/0x190 [scst]
       [<ffffffffa03053dc>] scst_unregister_target+0x15c/0x3c0 [scst]
       [<ffffffffa029c69c>] ft_tport_delete+0x2c/0xa0 [fcst]
       [<ffffffffa029d3ec>] ft_lport_del+0x2c/0x40 [fcst]
       [<ffffffffa023e249>] fc_lport_iterate+0x49/0x80 [libfc]
       [<ffffffffa029d804>] ft_module_exit+0x36/0x832 [fcst]
       [<ffffffff810cd3f2>] SyS_delete_module+0x152/0x1f0
       [<ffffffff815664a9>] system_call_fastpath+0x16/0x1b

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(ft_lport_lock);
                               lock(scst_tgt_kref);
                               lock(ft_lport_lock);
  lock(scst_tgt_kref);

 *** DEADLOCK ***

2 locks held by rmmod/8653:
 #0:  (fc_prov_mutex){+.+.+.}, at: [<ffffffffa023e222>] fc_lport_iterate+0x22/0x80 [libfc]
 #1:  (ft_lport_lock){+.+.+.}, at: [<ffffffffa029d3db>] ft_lport_del+0x1b/0x40 [fcst]

stack backtrace:
CPU: 0 PID: 8653 Comm: rmmod Tainted: G        W  O 3.13.0-rc6-debug+ #5
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
 ffffffff8222ce70 ffff88002efdbb70 ffffffff8155551c ffffffff8222ce70
 ffff88002efdbbb0 ffffffff81552248 ffff88002efdbc00 ffff88002ed0ed88
 ffff88002ed0e6d0 0000000000000002 0000000000000002 ffff88002ed0ed88
Call Trace:
 [<ffffffff8155551c>] dump_stack+0x4e/0x7a
 [<ffffffff81552248>] print_circular_bug+0x200/0x20f
 [<ffffffff8109a95b>] __lock_acquire+0x17ab/0x1b10
 [<ffffffff8109b4b4>] lock_acquire+0xa4/0x1e0
 [<ffffffffa03375b9>] scst_kobject_put_and_wait+0x99/0x260 [scst]
 [<ffffffffa033de6f>] scst_tgt_sysfs_put+0x10f/0x190 [scst]
 [<ffffffffa03053dc>] scst_unregister_target+0x15c/0x3c0 [scst]
 [<ffffffffa029c69c>] ft_tport_delete+0x2c/0xa0 [fcst]
 [<ffffffffa029d3ec>] ft_lport_del+0x2c/0x40 [fcst]
 [<ffffffffa023e249>] fc_lport_iterate+0x49/0x80 [libfc]
 [<ffffffffa029d804>] ft_module_exit+0x36/0x832 [fcst]
 [<ffffffff810cd3f2>] SyS_delete_module+0x152/0x1f0
 [<ffffffff815664a9>] system_call_fastpath+0x16/0x1b


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5196 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-01-16 15:23:45 +00:00
Bart Van Assche
6d7fb6343d fcst: Avoid that "rmmod fcst" hangs 
Make sure that SCST sessions get unregistered when scst_unregister_target()
is invoked. This change is necessary because of r5083 ("Disable automatic
sessions unregistration").


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5195 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-01-16 15:22:00 +00:00
Bart Van Assche
9690e0f1c3 fcst: SLES 11 SP3 build fix 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5188 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2014-01-10 07:50:10 +00:00
Bart Van Assche
c296055104 fcst: Avoid that checkpatch complains about 'struct spinlock' 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5013 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2013-10-01 06:21:38 +00:00
Bart Van Assche
886ae66326 fcst: Avoid triggering CRC errors at the initiator side 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4969 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2013-08-13 18:43:56 +00:00
Bart Van Assche
80ba881d46 fcst: Fix ft_abort_cmd() 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4968 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2013-08-13 18:43:26 +00:00
Bart Van Assche
e6610624ae fcst: Report FC send errors 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4967 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2013-08-13 18:41:38 +00:00