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| author | Zhonghui Fu <zhonghui.fu@linux.intel.com> | 2015-03-18 15:54:27 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-03-18 15:54:27 +0100 |
| commit | 431d452af13720463dda498999b2e9a08729c03a (patch) | |
| tree | 581e00b8b20d6fbc60df1d0d0c4390141abe1f4f /drivers/base/power/trace.c | |
| parent | 1d4a9c17d4d204a159139361e8d4db7f9f267879 (diff) | |
| download | lwn-431d452af13720463dda498999b2e9a08729c03a.tar.gz lwn-431d452af13720463dda498999b2e9a08729c03a.zip | |
PM / sleep: add pm-trace support for suspending phase
Occasionally, the system can't come back up after suspend/resume
due to problems of device suspending phase. This patch make
PM_TRACE infrastructure cover device suspending phase of
suspend/resume process, and the information in RTC can tell
developers which device suspending function make system hang.
Signed-off-by: Zhonghui Fu <zhonghui.fu@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/base/power/trace.c')
| -rw-r--r-- | drivers/base/power/trace.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/base/power/trace.c b/drivers/base/power/trace.c index d94a1f5121cf..a311cfa4c5bd 100644 --- a/drivers/base/power/trace.c +++ b/drivers/base/power/trace.c @@ -7,7 +7,7 @@ * devices may be working. */ -#include <linux/resume-trace.h> +#include <linux/pm-trace.h> #include <linux/export.h> #include <linux/rtc.h> @@ -154,7 +154,7 @@ EXPORT_SYMBOL(set_trace_device); * it's not any guarantee, but it's a high _likelihood_ that * the match is valid). */ -void generate_resume_trace(const void *tracedata, unsigned int user) +void generate_pm_trace(const void *tracedata, unsigned int user) { unsigned short lineno = *(unsigned short *)tracedata; const char *file = *(const char **)(tracedata + 2); @@ -164,7 +164,7 @@ void generate_resume_trace(const void *tracedata, unsigned int user) file_hash_value = hash_string(lineno, file, FILEHASH); set_magic_time(user_hash_value, file_hash_value, dev_hash_value); } -EXPORT_SYMBOL(generate_resume_trace); +EXPORT_SYMBOL(generate_pm_trace); extern char __tracedata_start, __tracedata_end; static int show_file_hash(unsigned int value) |