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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2011-05-10 21:09:53 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-05-21 15:13:12 -0700 |
| commit | b869799eec5145afe463368afb679445d8e4bc3f (patch) | |
| tree | 8718ad5c28760296230fcedbea632b50d9e2bcec /kernel | |
| parent | 1da3e2d35573b23ae38aa0f1b096cb978ecef445 (diff) | |
| download | lwn-b869799eec5145afe463368afb679445d8e4bc3f.tar.gz lwn-b869799eec5145afe463368afb679445d8e4bc3f.zip | |
PM: Fix warning in pm_restrict_gfp_mask() during SNAPSHOT_S2RAM ioctl
commit 87186475a402391a1ca7d42a675c9b35a18dc348 upstream.
A warning is printed by pm_restrict_gfp_mask() while the
SNAPSHOT_S2RAM ioctl is being executed after creating a hibernation
image, because pm_restrict_gfp_mask() has been called once already
before the image creation and suspend_devices_and_enter() calls it
once again. This happens after commit 452aa6999e6703ffbddd7f6ea124d3
(mm/pm: force GFP_NOIO during suspend/hibernation and resume).
To avoid this issue, move pm_restrict_gfp_mask() and
pm_restore_gfp_mask() from suspend_devices_and_enter() to its caller
in kernel/power/suspend.c.
Reported-by: Alexandre Felipe Muller de Souza <alexandrefm@mandriva.com.br>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/power/suspend.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index de6f86bfa303..08f62e890aa5 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -209,7 +209,6 @@ int suspend_devices_and_enter(suspend_state_t state) goto Close; } suspend_console(); - pm_restrict_gfp_mask(); suspend_test_start(); error = dpm_suspend_start(PMSG_SUSPEND); if (error) { @@ -226,7 +225,6 @@ int suspend_devices_and_enter(suspend_state_t state) suspend_test_start(); dpm_resume_end(PMSG_RESUME); suspend_test_finish("resume devices"); - pm_restore_gfp_mask(); resume_console(); Close: if (suspend_ops->end) @@ -287,7 +285,9 @@ int enter_state(suspend_state_t state) goto Finish; pr_debug("PM: Entering %s sleep\n", pm_states[state]); + pm_restrict_gfp_mask(); error = suspend_devices_and_enter(state); + pm_restore_gfp_mask(); Finish: pr_debug("PM: Finishing wakeup.\n"); |