linux/fs/pstore
Steven Rostedt (VMware) 6cdf941871 pstore/ftrace: Add recursion protection to the ftrace callback
If a ftrace callback does not supply its own recursion protection and
does not set the RECURSION_SAFE flag in its ftrace_ops, then ftrace will
make a helper trampoline to do so before calling the callback instead of
just calling the callback directly.

The default for ftrace_ops is going to change. It will expect that handlers
provide their own recursion protection, unless its ftrace_ops states
otherwise.

Link: https://lkml.kernel.org/r/20201028115612.990886844@goodmis.org
Link: https://lkml.kernel.org/r/20201106023546.720372267@goodmis.org

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Josh  Poimboeuf <jpoimboe@redhat.com>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Miroslav Benes <mbenes@suse.cz>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Meyer <thomas@m3y3r.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2020-11-06 08:33:23 -05:00
..
blk.c pstore/blk: Introduce "best_effort" mode 2020-05-31 19:49:01 -07:00
ftrace.c pstore/ftrace: Add recursion protection to the ftrace callback 2020-11-06 08:33:23 -05:00
inode.c pstore: Remove filesystem records when backend is unregistered 2020-05-30 10:34:02 -07:00
internal.h pstore/ftrace: Provide ftrace log merging routine 2020-05-30 10:34:02 -07:00
Kconfig Documentation: Add details for pstore/blk 2020-05-30 10:34:03 -07:00
Makefile pstore/blk: Introduce backend for block devices 2020-05-30 10:34:03 -07:00
platform.c pstore: Fix linking when crypto API disabled 2020-07-06 19:42:31 -07:00
pmsg.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
ram_core.c pstore: switch to copy_from_user() 2020-04-23 10:52:48 -04:00
ram.c pstore/ram: Introduce max_reason and convert dump_oops 2020-05-30 10:34:03 -07:00
zone.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00