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| author | Kirill Tkhai <tkhai@yandex.ru> | 2013-09-14 16:02:11 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-11-14 14:57:21 -0800 |
| commit | 812cb83a56a908729c453a7db3fb2c262119bc9d (patch) | |
| tree | 3fdf3df047276db7de85558ff6caff006c3b1cc4 /arch/sparc/kernel/sys_sparc_64.c | |
| parent | 1a36265bf7d7e16b35fab5ae7f2f5d499bd0c14d (diff) | |
| download | linux-812cb83a56a908729c453a7db3fb2c262119bc9d.tar.gz linux-812cb83a56a908729c453a7db3fb2c262119bc9d.tar.bz2 linux-812cb83a56a908729c453a7db3fb2c262119bc9d.zip | |
sparc64: Implement HAVE_CONTEXT_TRACKING
Mark the places when the system are in user or are in kernel.
This is used to make full dynticks system (tickless) --
CONFIG_NO_HZ_FULL dependence.
Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel/sys_sparc_64.c')
| -rw-r--r-- | arch/sparc/kernel/sys_sparc_64.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index d05eb9c1d846..beb0b5a5f21f 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -24,6 +24,7 @@ #include <linux/personality.h> #include <linux/random.h> #include <linux/export.h> +#include <linux/context_tracking.h> #include <asm/uaccess.h> #include <asm/utrap.h> @@ -496,6 +497,7 @@ asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs) asmlinkage void sparc_breakpoint(struct pt_regs *regs) { + enum ctx_state prev_state = exception_enter(); siginfo_t info; if (test_thread_flag(TIF_32BIT)) { @@ -514,6 +516,7 @@ asmlinkage void sparc_breakpoint(struct pt_regs *regs) #ifdef DEBUG_SPARC_BREAKPOINT printk ("TRAP: Returning to space: PC=%lx nPC=%lx\n", regs->tpc, regs->tnpc); #endif + exception_exit(prev_state); } extern void check_pending(int signum); |