We were submitting work requests sometimes after the drain_wr,
so we would try to process flushes on something that is already
destroyed. This can be seen with very high login/logout load.
Signed-off-by: Yan Burman <yanb@mellanox.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6428 d57e44dd-8a1f-0410-8b47-8ef2f437770f
In order to be able to support large block sizes (larger than 512K),
we allocate required structured in a lazy fashion. This way we both support
large block sizes (over 512K and even over 1M). We also lower memory footprint
when smaller block sizes are used.
Signed-off-by: Yan Burman <yanb@mellanox.com>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6418 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Preprocessor directives are not allowed in argument lists of a macro.
This patch reverts r6317.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6393 d57e44dd-8a1f-0410-8b47-8ef2f437770f
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
It is annoying that some warnings are only reported in release mode.
Modify scst_debug.h such that the compiler does not report variables
that are only used in debug builds as unused.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6315 d57e44dd-8a1f-0410-8b47-8ef2f437770f
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
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
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
Avoid that checkpatch reports the following warning:
WARNING: type 'long long unsigned' should be specified in 'unsigned long long' order.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5885 d57e44dd-8a1f-0410-8b47-8ef2f437770f
For SCST devices with a short name determining which SCST command
threads serve a given LUN requires an (expensive) walk of the
process table. For SCST devices with a long name it is not possible
to determine unambiguously which command threads serve a given
LUN. Hence add a thread_pid sysfs attribute that makes it easy to
figure out which command threads serve a LUN.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5851 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Instead of adding sg[idx].offset to addr and immediately subtracting
sg[idx].offset again, leave out both arithmetic operations.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5735 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Since scst.h contains a backport of the definition of set_cpus_allowed_ptr(),
the set_cpus_allowed() invocations are superfluous. Hence remove these.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5734 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Avoid that the checkpatch tool included in Linux kernel v3.16 reports the
following warning:
macros should not use a trailing semicolon
This patch does not change any functionality.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5724 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Bart Van Assche
Vladislav Bolkhovitin
Bart Van Assche