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Author SHA1 Message Date
Bart Van Assche
18c63e434b qla2x00t: Fix a potential buffer overflow 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6382 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:29:04 +00:00
Bart Van Assche
e2210ff40f ib_srpt, make clean: Remove all temporary files 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6381 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:28:39 +00:00
Bart Van Assche
a8da0107f8 iscsiadm: Fix a resource leak 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6380 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:28:02 +00:00
Bart Van Assche
ad38432332 iscsiadm: Fix strerror() argument 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6379 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:27:41 +00:00
Bart Van Assche
a14df39942 iscsiadm: Do not allocate more memory than needed 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6378 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:27:18 +00:00
Bart Van Assche
ff2b660264 iscsiadm: Fix a file descriptor leak in an error path 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6377 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:26:35 +00:00
Bart Van Assche
f5f85b95fb iscsi-scstd: Fix a resource leak in an error path 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6376 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:26:08 +00:00
Bart Van Assche
a6121b03c8 iscsi-scstd: Fix a potential file descriptor leak 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6375 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:25:42 +00:00
Bart Van Assche
74b4104994 iscsi-scstd: Avoid that Coverity complains about a use-after-free 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6374 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:25:05 +00:00
Bart Van Assche
b3f49a0a17 iscsi-scstd: Annotate fall-throughs for Coverity 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6373 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:24:25 +00:00
Bart Van Assche
102d8d54c9 iscsi-scstd: Move two local variables to suppress a Coverity complaint 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6372 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:24:03 +00:00
Bart Van Assche
41caee3148 iscsi-scstd: Fix a file descriptor leak in an error path 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6371 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:23:38 +00:00
Bart Van Assche
21b60063a9 iscsi-scstd: Fix a dereference-before-null-check 
Detected by Coverity.



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6370 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:23:14 +00:00
Bart Van Assche
b099782023 iscsi-scstd: Fix a memory leak in the iSNS code 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6369 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:22:46 +00:00
Bart Van Assche
dfcb53a9b2 iscsi-scstd: Rearrange driver major number lookup code 
Introduce a function for looking up the driver major number.
This patch does not change any functionality but makes the source
code easier to read and also makes it easier for Coverity to
analyze this code.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6368 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:22:14 +00:00
Bart Van Assche
165b0f1d10 iscsi-scstd: Improve create_and_open_dev() robustness 
Reset 'devn' if the sscanf() return value is lower than two.
Based on a Coverity report.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6367 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:21:28 +00:00
Bart Van Assche
d70b1e39c0 iscsi-scstd: Fix a dereference-before-null-check 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6366 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:20:21 +00:00
Bart Van Assche
40a90a705d isert-scst: Add address length check in isert_listen_ioctl() 
Detected by Coverity.



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6365 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:19:27 +00:00
Bart Van Assche
26cda0eb38 iscsi-scst: Annotate fall-through cases for Coverity 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6364 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:18:23 +00:00
Bart Van Assche
63cb4a9d40 iscsi-scst: Fix indentation 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6363 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:09:23 +00:00
Bart Van Assche
4891109301 scst_tg: Introduce scst_dg_mutex 
Make target group locking more fine grained by protecting
target group related data structures via scst_dg_mutex. This
patch fixes a rare deadlock between VPD inquiry and LUN removal.
See also patch "scst: Rework sess_tgt_dev_list locking" (commit
ID 5af7d9277d).
    
INFO: task scst_uid:12943 blocked for more than 120 seconds.
Call Trace:
[<ffffffff814f9297>] schedule+0x37/0x90
[<ffffffff814fe2fc>] schedule_timeout+0x20c/0x370
[<ffffffff814fa8f7>] wait_for_completion+0xf7/0x130
[<ffffffff81083dc4>] kthread_stop+0x84/0x470
[<ffffffffa04286b8>] scst_del_threads+0xc8/0x250 [scst]
[<ffffffffa0457505>] scst_tgt_dev_stop_threads+0x185/0x1a0 [scst]
[<ffffffffa045e913>] scst_free_tgt_dev+0x103/0x280 [scst]
[<ffffffffa045fb6d>] scst_acg_del_lun+0xcd/0x270 [scst]
[<ffffffffa046fc03>] __scst_process_luns_mgmt_store+0x653/0x6b0
[scst]
[<ffffffffa046fc87>] scst_luns_mgmt_store_work_fn+0x27/0x30 [scst]
[<ffffffffa046b00d>] scst_process_sysfs_works+0xed/0x1f0 [scst]
[<ffffffffa046e4bd>] sysfs_work_thread_fn+0x13d/0x2e0 [scst]
[<ffffffff8108370a>] kthread+0x10a/0x120
[<ffffffff815001a2>] ret_from_fork+0x42/0x70
1 lock held by scst_uid/12943:
  (&scst_mutex){+.+.+.}, at: [<ffffffffa045fb4b>] scst_acg_del_lun+0xab/0x270 [scst]
INFO: task diskf00_0:19854 blocked for more than 120 seconds.
Call Trace:
[<ffffffff814f9297>] schedule+0x37/0x90
[<ffffffff814f9738>] schedule_preempt_disabled+0x18/0x30
[<ffffffff814fb1ce>] mutex_lock_nested+0x16e/0x450
[<ffffffffa0483e6f>] scst_impl_alua_configured+0x1f/0x50 [scst]
[<ffffffffa0504878>] vdisk_inq+0x68/0x2c0 [scst_vdisk]
[<ffffffffa050b05e>] vdisk_exec_inquiry+0x31e/0x440 [scst_vdisk]
[<ffffffffa0502bf6>] vdev_do_job+0x1b6/0x3c0 [scst_vdisk]
[<ffffffffa05030a9>] vdisk_exec+0x29/0x90 [scst_vdisk]
[<ffffffffa0431eb1>] scst_do_real_exec+0xa1/0x450 [scst]
[<ffffffffa043230d>] scst_exec_check_blocking+0xad/0x2b0 [scst]
[<ffffffffa043251e>] scst_exec_check_sn+0xe/0x10 [scst]
[<ffffffffa0439e75>] scst_process_active_cmd+0x3f5/0x7e0 [scst]
[<ffffffffa043b7eb>] scst_do_job_active+0xeb/0x180 [scst]
[<ffffffffa043b9bc>] scst_cmd_thread+0x13c/0x2c0 [scst]
[<ffffffff8108370a>] kthread+0x10a/0x120
[<ffffffff815001a2>] ret_from_fork+0x42/0x70
1 lock held by diskf00_0/19854:
  (&scst_mutex){+.+.+.}, at: [<ffffffffa0483e6f>] scst_impl_alua_configured+0x1f/0x50 [scst]



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6362 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:08:48 +00:00
Bart Van Assche
4b9efe2090 scst_tg: Convert dynamic into static initialization 
This patch does not change any functionality.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6361 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:07:20 +00:00
Bart Van Assche
250faea985 scst_targ: Remove dead code 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6360 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:06:18 +00:00
Bart Van Assche
76cc064b48 scst: Fix a race between scst_del_threads() and the sysfs API 
kthread_stop() not only stops a thread but also frees the associated
task struct. Avoid that functions that iterate over the thread list
can encounter an invalid task structure pointer. This patch fixes the
following kernel crash:
    
general protection fault: 0000 [#2] PREEMPT SMP
RIP: 0010:[<ffffffff81080e9c>]  [<ffffffff81080e9c>] __task_pid_nr_ns+0x9c/0x1b0
Call Trace:
[<ffffffffa045ed7d>] task_pid_vnr+0xd/0x10 [scst]
[<ffffffffa0460418>] scst_tgt_dev_thread_pid_show+0x78/0xd0 [scst]
[<ffffffffa045929f>] scst_show+0xf/0x20 [scst]
[<ffffffff81231acb>] sysfs_kf_seq_show+0xab/0x130
[<ffffffff81230176>] kernfs_seq_show+0x26/0x30
[<ffffffff811daf10>] seq_read+0xe0/0x3e0
[<ffffffff81230ab5>] kernfs_fop_read+0x125/0x180
[<ffffffff811b0138>] __vfs_read+0x28/0xe0
[<ffffffff811b07ca>] vfs_read+0x8a/0x140
[<ffffffff811b1669>] SyS_read+0x49/0xb0
[<ffffffff814ffd32>] system_call_fastpath+0x16/0x7a



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6359 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:05:29 +00:00
Bart Van Assche
b936c23543 qla2xxx: Declare local symbols 'static' 
Additionally, remove unused code. Detected by sparse.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6358 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:03:35 +00:00
Bart Van Assche
b6c00bfba1 scst_targ: Add more debug code in scst_unblock_aborted_cmds() 
Use lockdep to verify that the caller holds scst_mutex if the
scst_mutex_held argument has not been set.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6357 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:01:24 +00:00
Bart Van Assche
a6f9f870b3 scst_lib: Fix a use-after-free in an error path 
scst_free_tgt_dev() frees the memory tgt_dev points at which means
that list_for_each_entry_safe() is needed here.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6356 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-17 00:00:40 +00:00
Bart Van Assche
e31d1999f3 dev_handlers: Report invalid block sizes 
If while attaching a pass-through device the READ CAPACITY command
reports an invalid sector size, log an error message.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6355 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:59:38 +00:00
Bart Van Assche
612fac9874 isert: Declare a local function static 
Detected by checkpatch.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6354 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:55:52 +00:00
Bart Van Assche
eb10fe3f7d iscsi-scst: Surround complex values with parentheses 
Detected by checkpatch.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6353 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:55:22 +00:00
Bart Van Assche
bf0fdcb36d scst_proc: Indent consistently 
Detected by smatch.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6352 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:54:47 +00:00
Bart Van Assche
29d11c1ee2 scst_user: Fix indentation 
Detected by smatch.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6351 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:54:14 +00:00
Bart Van Assche
a0f46a0a69 scst_lib: WRITE SAME performance improvement fix 
Fix the argument of the second kunmap() call. Detected by smatch.
See also patch "scst_lib: Improve WRITE SAME performance" (commit
ID a15628d683). Note: this patch does not have any impact on
64-bit architectures since kunmap() doesn't to anything on such
architectures.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6350 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:53:43 +00:00
Bart Van Assche
ae2534f0a6 qla2x00t: Update how-to with instructions for 16 Gb/s HBA 
Add instructions for how to download and install the 16 Gb/s FC HBA
driver. Remove the "optional step" since this step should not be
needed after various recent fixes in the SCST makefiles. Recommend
to blacklist the distro QLA initiator driver even if the kernel is
not being rebuilt.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6349 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:53:00 +00:00
Bart Van Assche
dce5cbc1cb iscsi-scst/README: Add a reference 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6348 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:52:10 +00:00
Bart Van Assche
47efee04ce scst: Fix WRITE SAME parsing 
Check bit 4 instead of bit 0 as the ANCHOR bit. Handle the NDOB
bit correctly.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6347 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:51:26 +00:00
Bart Van Assche
20986f4c1b scst_lib: Make a WRITE SAME debug statement more informative 
If a data length mismatch has been detected, report the LBA and
the lengths that do not match.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6346 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:49:18 +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
Bart Van Assche
a0e4cc7288 fileio: Remove dead code 
There is no FUA bit in WRITE VERIFY commands. Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6344 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:45:51 +00:00
Bart Van Assche
ac45265fd0 scst_local: Fix scst_local_add_target() error path 
Do not return a pointer to freed memory in *out_tgt. Detected by
Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6343 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:45:15 +00:00
Bart Van Assche
1eb5498df2 scst_local: Correct error handling in scst_local_sysfs_mgmt_cmd() 
Avoid that __scst_local_add_adapter() failures are ignored.
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6342 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:44:28 +00:00
Bart Van Assche
4efcfc7bfd scst: Remove dead code from scst_assign_dev_handler() 
The BUG_ON(handler == NULL) statement at the start of this function
guarantees that handler != NULL. Hence remove the remaining tests of
the 'handler' pointer. Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6341 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:43:31 +00:00
Bart Van Assche
f272064c12 iscsi-scst: Suppress put_page_callback patch warnings 
The put_page_callback patch only improves performance on single
socket systems but not on systems with multiple CPU sockets.
Since this message is confusing to SCST users, do not print a
warning if the put_page_callback patch has not been applied.



git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6340 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 23:10:28 +00:00
Bart Van Assche
269d417601 scst_debug(): Avoid that debug_print_with_prefix() overflows the output buffer 
Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6339 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 20:23:17 +00:00
Bart Van Assche
3fe91cf714 scst_vdisk: Fix error handling in __vdev_load_mode_pages() 
Avoid that unknown parameters cause __vdev_load_mode_pages() to
return 0 instead of -EINVAL. Detected by Coverity.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6338 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 20:21:22 +00:00
Bart Van Assche
f6806b930c scripts/rebuild-rhel-kernel-rpm: Add RHEL 7.1 support 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6337 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 20:18:29 +00:00
Bart Van Assche
6b3f45696a RHEL 7.1: Add put_page_callback patch 
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6336 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 20:17:52 +00:00
Bart Van Assche
502aef7b1b scst: Rename SERVICE_ACTION_IN into SERVICE_ACTION_IN_16 
Rename this constant because it has been renamed in the Linux
kernel.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6335 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 20:16:19 +00:00
Bart Van Assche
9bfdc312d3 ib_srpt: RHEL 5 build fix 
Make the ib_srpt driver build again on RHEL 5 systems. See also
r6138.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6334 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 20:15:12 +00:00
Bart Van Assche
1d58f5fd14 scst_local: RHEL 5 build fix 
Add a definition of scsi_bidi_cmnd() for older kernel versions.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6333 d57e44dd-8a1f-0410-8b47-8ef2f437770f
 2015-06-16 20:14:10 +00:00