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| author | James Bottomley <James.Bottomley@HansenPartnership.com> | 2016-01-07 15:51:13 -0800 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2016-01-07 15:51:13 -0800 |
| commit | abaee091a18c19ccd86feb1c8374585d82e96777 (patch) | |
| tree | 01602bae73e1278c3d98dafe1c269049927c58ce /arch/arm64/kernel/suspend.c | |
| parent | a2746fb16e41b7c8f02aa4d2605ecce97abbebbd (diff) | |
| parent | 3f8d6f2a0797e8c650a47e5c1b5c2601a46f4293 (diff) | |
| download | linux-abaee091a18c19ccd86feb1c8374585d82e96777.tar.bz2 | |
Merge branch 'jejb-scsi' into misc
Diffstat (limited to 'arch/arm64/kernel/suspend.c')
| -rw-r--r-- | arch/arm64/kernel/suspend.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/kernel/suspend.c b/arch/arm64/kernel/suspend.c index fce95e17cf7f..1095aa483a1c 100644 --- a/arch/arm64/kernel/suspend.c +++ b/arch/arm64/kernel/suspend.c @@ -1,3 +1,4 @@ +#include <linux/ftrace.h> #include <linux/percpu.h> #include <linux/slab.h> #include <asm/cacheflush.h> @@ -71,6 +72,13 @@ int cpu_suspend(unsigned long arg, int (*fn)(unsigned long)) local_dbg_save(flags); /* + * Function graph tracer state gets incosistent when the kernel + * calls functions that never return (aka suspend finishers) hence + * disable graph tracing during their execution. + */ + pause_graph_tracing(); + + /* * mm context saved on the stack, it will be restored when * the cpu comes out of reset through the identity mapped * page tables, so that the thread address space is properly @@ -111,6 +119,8 @@ int cpu_suspend(unsigned long arg, int (*fn)(unsigned long)) hw_breakpoint_restore(NULL); } + unpause_graph_tracing(); + /* * Restore pstate flags. OS lock and mdscr have been already * restored, so from this point onwards, debugging is fully |