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4acb9e5139
If FAULT_INJECTION_STACKTRACE_FILTER is enabled, the depth is default to 32. This means fail_stacktrace() will iter each entry's stacktrace, even if filter is not configured. This patch changes to quick return from fail_stacktrace() if stacktrace filter is not set. Link: https://lkml.kernel.org/r/20220817080332.1052710-3-weiyongjun1@huawei.com Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Cc: Akinobu Mita <akinobu.mita@gmail.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Isabella Basso <isabbasso@riseup.net> Cc: Josh Poimboeuf <jpoimboe@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Miguel Ojeda <ojeda@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.