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| author | Paul Burton | 2018-06-14 19:13:53 +0200 |
|---|---|---|
| committer | Paul Burton | 2018-06-20 06:13:17 +0200 |
| commit | 9ea141ad54716d48e79d0093052c12ed67debf09 (patch) | |
| tree | d6b3b439562aaf1d21303078623f7e05793a9b02 /arch/mips/Kconfig | |
| parent | MIPS: io: Add barrier after register read in inX() (diff) | |
| download | kernel-qcow2-linux-9ea141ad54716d48e79d0093052c12ed67debf09.tar.gz kernel-qcow2-linux-9ea141ad54716d48e79d0093052c12ed67debf09.tar.xz kernel-qcow2-linux-9ea141ad54716d48e79d0093052c12ed67debf09.zip | |
MIPS: Add support for restartable sequences
Implement support for restartable sequences on MIPS, which requires 3
simple things:
- Call rseq_handle_notify_resume() on return to userspace if
TIF_NOTIFY_RESUME is set.
- Call rseq_signal_deliver() to fixup the pre-signal stack frame when
a signal is delivered whilst executing a restartable sequence
critical section.
- Select CONFIG_HAVE_RSEQ.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Reviewed-by: James Hogan <jhogan@kernel.org>
Patchwork: https://patchwork.linux-mips.org/patch/19523/
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Diffstat (limited to 'arch/mips/Kconfig')
| -rw-r--r-- | arch/mips/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 3f9deec70b92..08c10c518f83 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -65,6 +65,7 @@ config MIPS select HAVE_OPROFILE select HAVE_PERF_EVENTS select HAVE_REGS_AND_STACK_ACCESS_API + select HAVE_RSEQ select HAVE_STACKPROTECTOR select HAVE_SYSCALL_TRACEPOINTS select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP |