diff options
| author | Ingo Molnar <mingo@elte.hu> | 2012-02-07 09:59:29 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2012-02-07 09:59:29 +0100 |
| commit | 290436c9c61ac983b1bd425da67242a4357c7701 (patch) | |
| tree | 35e1f189b62eb50515600ad607d7fb57fc547870 /kernel/power/user.c | |
| parent | 623ec991ce0e8cd5791bad656c162fa837635907 (diff) | |
| parent | 62aa2b537c6f5957afd98e29f96897419ed5ebab (diff) | |
Merge tag 'v3.3-rc2' into perf/core
Linux 3.3-rc2
Pick up the latest fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/power/user.c')
| -rw-r--r-- | kernel/power/user.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/power/user.c b/kernel/power/user.c index 6b1ab7a8852..e5a21a85730 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c @@ -274,6 +274,15 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd, swsusp_free(); memset(&data->handle, 0, sizeof(struct snapshot_handle)); data->ready = 0; + /* + * It is necessary to thaw kernel threads here, because + * SNAPSHOT_CREATE_IMAGE may be invoked directly after + * SNAPSHOT_FREE. In that case, if kernel threads were not + * thawed, the preallocation of memory carried out by + * hibernation_snapshot() might run into problems (i.e. it + * might fail or even deadlock). + */ + thaw_kernel_threads(); break; case SNAPSHOT_PREF_IMAGE_SIZE: |