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| author | David Shaohua Li <shaohua.li@intel.com> | 2005-08-03 23:46:33 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2005-08-03 23:50:36 -0400 |
| commit | 11e981f1e02c2a36465cbb208b21cb8b6480f399 (patch) | |
| tree | d812a362e9e530f0cfd7a189d79ede3e8d5a7f96 /drivers | |
| parent | 8066eff0a1a0703ad901dbe5646a47dbfc089ef2 (diff) | |
| download | linux-11e981f1e02c2a36465cbb208b21cb8b6480f399.tar.gz linux-11e981f1e02c2a36465cbb208b21cb8b6480f399.tar.bz2 linux-11e981f1e02c2a36465cbb208b21cb8b6480f399.zip | |
[ACPI] S3 resume: avoid kmalloc() might_sleep oops symptom
ACPI now uses kmalloc(...,GPF_ATOMIC) during suspend/resume.
http://bugzilla.kernel.org/show_bug.cgi?id=3469
Signed-off-by: David Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/osl.c | 6 | ||||
| -rw-r--r-- | drivers/acpi/pci_link.c | 7 |
2 files changed, 12 insertions, 1 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index bdd9f37f8101..7289da3c4db6 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -145,10 +145,14 @@ acpi_os_vprintf(const char *fmt, va_list args) #endif } +extern int acpi_in_resume; void * acpi_os_allocate(acpi_size size) { - return kmalloc(size, GFP_KERNEL); + if (acpi_in_resume) + return kmalloc(size, GFP_ATOMIC); + else + return kmalloc(size, GFP_KERNEL); } void diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index 65cea07abbc3..834c2ceff1aa 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -798,6 +798,11 @@ acpi_pci_link_resume( return_VALUE(0); } +/* + * FIXME: this is a workaround to avoid nasty warning. It will be removed + * after every device calls pci_disable_device in .resume. + */ +int acpi_in_resume; static int irqrouter_resume( struct sys_device *dev) @@ -807,6 +812,7 @@ irqrouter_resume( ACPI_FUNCTION_TRACE("irqrouter_resume"); + acpi_in_resume = 1; list_for_each(node, &acpi_link.entries) { link = list_entry(node, struct acpi_pci_link, node); if (!link) { @@ -816,6 +822,7 @@ irqrouter_resume( } acpi_pci_link_resume(link); } + acpi_in_resume = 0; return_VALUE(0); } |