From the Linux kernel help text:
modules_prepare - Set up for building external modules
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9217 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Change '---help---' into 'help'. See also Linux kernel commit f70f74d15ca8
("kconfig: remove '---help---' support") # v5.9.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9216 d57e44dd-8a1f-0410-8b47-8ef2f437770f
In contrast with the description of that commit, commit r9114 changes the
functionality of the scst_pres code. Hence revert that commit.
Reported-by: Chesnokov Gleb <Chesnokov.G@raidix.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9213 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Transport Target mode server need to able to function when running in
containerized form factor in a secure and multi-tenant platform.
Solution: Such applications when containerized can run in any container
based platform such as Kubernetes/OpenShift or a custom one. These
applications are generic in nature and all they need is access to SCST
user storage device driver (/dev/scst_user). The security policy of the
platform may not allow these applications to manage Fibre Channel (FC)
port and /sys file-system. The platform, however, can manage the FC ports
on behalf of these applications. The containerized applications can
remain generic in nature and run on any containerized platforms. The
sequence of operations would be 1. The platform converts the desired FC
ports to target mode prior to starting the containerized application 2.
The application does device registration using exported the SCST user
storage device driver 3. The platform, at this point, asynchronously adds
FC port LUNs to the user device registered by the application. As the
application inside the container can auto or manual restart
asynchronously, the platform would add the LUNs every time the
application does device registration.
Patch description: The SCST event mechanism is leveraged to achieve the
asynchronous LUN additions when application does device registration. The
current set of SCST events is extended to send a new event whenever there
is a virtual user device registration happens. The platform can watch for
the specific event and make business logic decisions to allow target mode
applications function securely. By extending the set of event, the SCST
module will be friendly to containerized applications and platforms.
Signed-off-by: Vikas Goel <vikas.goel@veritas.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9210 d57e44dd-8a1f-0410-8b47-8ef2f437770f
The previous commit removed support for building with clang. Restore support
for building with clang without breaking cross-compilation support.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9209 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This patch does not change any functionality but removes multiple __force
__user casts.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9197 d57e44dd-8a1f-0410-8b47-8ef2f437770f
mm_segment_t, get_fs() and set_fs() have been removed from Linux kernel
v5.10. Instead of adding more #ifdef / #endif directives, provide backports
for this typedef and these functions in iscsi_scst.h.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9189 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Instead of duplicating some of the scst_writev() implementation, always call
scst_writev().
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9188 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Calling set_fs(KERNEL_DS) before calling path_lookup() or kern_path() is
not necessary since the arguments of these functions point at kernel data.
Hence remove the get_fs() / set_fs() calls from around these function calls.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9187 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Apparently this kernel has kvmalloc_node(), kvmalloc() and kvzalloc()
backports but no kvmalloc_array() backport.
See also the following commits:
* c027b9de7e ("scst: Port to UEK 4")
* 23a2753a9c ("scst/include/backport.h: Add backports for additional kernel functions, constants and data structures")
Reported-by: Gilbert Standen <gilstanden@hotmail.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9185 d57e44dd-8a1f-0410-8b47-8ef2f437770f
UEK 4 RPMs like kernel-uek-4.14.35-2025.402.2.1.el7uek.x86_64 include a
backport of cpu_to_be32_array() and kvcalloc(). Hence disable the SCST
backports for these functions when building against UEK 4.
Reported-by: Gilbert Standen <gilstanden@hotmail.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9179 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Use a workqueue for processing RDMA completions instead of creating one
kernel thread per RDMA channel. This change improves performance if the
number of RDMA channels is large by reducing the number of context
switches between kernel threads while processing RDMA completions. An
additional change is that srpt_set_ch_state() no longer wakes up the
RDMA completion context but that srpt_cm_rtu_recv() wakes up the RDMA
completion context instead.
See also https://github.com/bvanassche/scst/issues/33 .
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9178 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Leave a blank line between declarations and definitions. Remove duplicate
words from comments.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9177 d57e44dd-8a1f-0410-8b47-8ef2f437770f
- Return EOPNOTSUPP instead of ENOTSUPP to user space.
- Do not terminate macro definitions with a trailing semicolon.
- Do not initialize static variables to zero.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9176 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Apparently the RHEL 8.2 gcc compiler reports an error if
__attribute__((fallthrough)) is used outside a switch statement. Hence this
patch that converts some of these annotations back into comments.
Reported-by: Rob Turk <robtu@rtist.nl>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9167 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Fix the following build failure on RHEL 7 + MOFED 5.0:
In file included from <command-line>:0:0:
/usr/src/ofa_kernel/default/include/linux/compat-2.6.h:40:29: warning: "__GCC4_has_attribute___fallthrough__" is not defined [-Wundef]
# define __has_attribute(x) __GCC4_has_attribute_##x
^
/usr/src/packages/BUILD/scst-3.5.0.7946/iscsi-scst/kernel/isert-scst/../../../scst/include/backport.h:250:5: note: in expansion of macro '__has_attribute'
#if __has_attribute(__fallthrough__)
Reported-by: Chesnokov Gleb <Chesnokov.G@raidix.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9163 d57e44dd-8a1f-0410-8b47-8ef2f437770f
