Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
[PATCH] relax sig_needs_tasklist()
handle_stop_signal() does not need tasklist_lock for SIG_KERNEL_STOP_MASK
signals anymore.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
authored by
Oleg Nesterov
and committed by
Linus Torvalds
6108ccd3
7d7185c8
+1
-2
kernel/signal.c
+1
-2
kernel/signal.c
···
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#define sig_kernel_stop(sig) \
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(((sig) < SIGRTMIN) && T(sig, SIG_KERNEL_STOP_MASK))
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-
#define sig_needs_tasklist(sig) \
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-
(((sig) < SIGRTMIN) && T(sig, SIG_KERNEL_STOP_MASK | M(SIGCONT)))
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+
#define sig_needs_tasklist(sig) ((sig) == SIGCONT)
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#define sig_user_defined(t, signr) \
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(((t)->sighand->action[(signr)-1].sa.sa_handler != SIG_DFL) && \