diff options
Diffstat (limited to 'kernel/power/process.c')
| -rw-r--r-- | kernel/power/process.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/kernel/power/process.c b/kernel/power/process.c index ca634019497..3ca2b7c1b02 100644 --- a/kernel/power/process.c +++ b/kernel/power/process.c @@ -13,6 +13,7 @@ #include <linux/module.h> #include <linux/syscalls.h> #include <linux/freezer.h> +#include <linux/wakelock.h> /* * Timeout for stopping processes @@ -36,6 +37,7 @@ static int try_to_freeze_tasks(bool sig_only) struct timeval start, end; u64 elapsed_csecs64; unsigned int elapsed_csecs; + unsigned int wakeup = 0; do_gettimeofday(&start); @@ -62,6 +64,10 @@ static int try_to_freeze_tasks(bool sig_only) } while_each_thread(g, p); read_unlock(&tasklist_lock); yield(); /* Yield is okay here */ + if (todo && has_wake_lock(WAKE_LOCK_SUSPEND)) { + wakeup = 1; + break; + } if (time_after(jiffies, end_time)) break; } while (todo); @@ -77,11 +83,17 @@ static int try_to_freeze_tasks(bool sig_only) * and caller must call thaw_processes() if something fails), * but it cleans up leftover PF_FREEZE requests. */ - printk("\n"); - printk(KERN_ERR "Freezing of tasks failed after %d.%02d seconds " + if (wakeup) { + printk("\n"); + printk(KERN_ERR "Freezing of %s aborted\n", + sig_only ? "user space " : "tasks "); + } else { + printk("\n"); + printk(KERN_ERR "Freezing of tasks failed after %d.%02d seconds " "(%d tasks refusing to freeze):\n", elapsed_csecs / 100, elapsed_csecs % 100, todo); - show_state(); + show_state(); + } read_lock(&tasklist_lock); do_each_thread(g, p) { task_lock(p); |