MIPS: Add syscall detection for restartable sequences

Syscalls are not allowed inside restartable sequences, so add a call to
rseq_syscall() at the very beginning of the system call exit path when
CONFIG_DEBUG_RSEQ=y. This will help us to detect whether there is a
syscall issued erroneously inside a restartable sequence.

Signed-off-by: Paul Burton <[email protected]>
Reviewed-by: James Hogan <[email protected]>
Patchwork: https://patchwork.linux-mips.org/patch/19522/
Cc: Ralf Baechle <[email protected]>
Cc: Mathieu Desnoyers <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Paul E. McKenney <[email protected]>
Cc: Boqun Feng <[email protected]>
Cc: [email protected]
Cc: [email protected]

0 files changed, 0 insertions, 0 deletions