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authorEric W. Biederman <ebiederm@xmission.com>2022-02-09 18:51:14 +0300
committerEric W. Biederman <ebiederm@xmission.com>2022-03-11 01:51:36 +0300
commit8ba62d37949e248c698c26e0d82d72fda5d33ebf (patch)
tree1faa152e80c54f5bcb1f740ec43d8537c3d42f17 /include/linux/entry-common.h
parent7f62d40d9cb50fd146fe8ff071f98fa3c1855083 (diff)
downloadlinux-8ba62d37949e248c698c26e0d82d72fda5d33ebf.tar.xz
task_work: Call tracehook_notify_signal from get_signal on all architectures
Always handle TIF_NOTIFY_SIGNAL in get_signal. With commit 35d0b389f3b2 ("task_work: unconditionally run task_work from get_signal()") always calling task_work_run all of the work of tracehook_notify_signal is already happening except clearing TIF_NOTIFY_SIGNAL. Factor clear_notify_signal out of tracehook_notify_signal and use it in get_signal so that get_signal only needs one call of task_work_run. To keep the semantics in sync update xfer_to_guest_mode_work (which does not call get_signal) to call tracehook_notify_signal if either _TIF_SIGPENDING or _TIF_NOTIFY_SIGNAL. Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lkml.kernel.org/r/20220309162454.123006-8-ebiederm@xmission.com Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'include/linux/entry-common.h')
-rw-r--r--include/linux/entry-common.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/entry-common.h b/include/linux/entry-common.h
index 9efbdda61f7a..3537fd25f14e 100644
--- a/include/linux/entry-common.h
+++ b/include/linux/entry-common.h
@@ -257,7 +257,7 @@ static __always_inline void arch_exit_to_user_mode(void) { }
*
* Invoked from exit_to_user_mode_loop().
*/
-void arch_do_signal_or_restart(struct pt_regs *regs, bool has_signal);
+void arch_do_signal_or_restart(struct pt_regs *regs);
/**
* exit_to_user_mode - Fixup state when exiting to user mode