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yaml
---
r: 223668
b: refs/heads/master
c: b094a87
h: refs/heads/master
v: v3
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Linus Torvalds committed Dec 27, 2010
1 parent 64a2f27 commit cc07e01
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Showing 156 changed files with 1,425 additions and 720 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: cb59bfc59024115279de0d7612558caa72ec95f1
refs/heads/master: b094a870ae33426442b0cbcf8025f1ef919d1def
1 change: 1 addition & 0 deletions trunk/Documentation/accounting/getdelays.c
Original file line number Diff line number Diff line change
Expand Up @@ -516,6 +516,7 @@ int main(int argc, char *argv[])
default:
fprintf(stderr, "Unknown nla_type %d\n",
na->nla_type);
case TASKSTATS_TYPE_NULL:
break;
}
na = (struct nlattr *) (GENLMSG_DATA(&msg) + len);
Expand Down
59 changes: 31 additions & 28 deletions trunk/Documentation/scsi/scsi_mid_low_api.txt
Original file line number Diff line number Diff line change
Expand Up @@ -1044,9 +1044,9 @@ Details:


/**
* queuecommand - queue scsi command, invoke 'done' on completion
* queuecommand - queue scsi command, invoke scp->scsi_done on completion
* @shost: pointer to the scsi host object
* @scp: pointer to scsi command object
* @done: function pointer to be invoked on completion
*
* Returns 0 on success.
*
Expand Down Expand Up @@ -1074,42 +1074,45 @@ Details:
*
* Other types of errors that are detected immediately may be
* flagged by setting scp->result to an appropriate value,
* invoking the 'done' callback, and then returning 0 from this
* function. If the command is not performed immediately (and the
* LLD is starting (or will start) the given command) then this
* function should place 0 in scp->result and return 0.
* invoking the scp->scsi_done callback, and then returning 0
* from this function. If the command is not performed
* immediately (and the LLD is starting (or will start) the given
* command) then this function should place 0 in scp->result and
* return 0.
*
* Command ownership. If the driver returns zero, it owns the
* command and must take responsibility for ensuring the 'done'
* callback is executed. Note: the driver may call done before
* returning zero, but after it has called done, it may not
* return any value other than zero. If the driver makes a
* non-zero return, it must not execute the command's done
* callback at any time.
*
* Locks: struct Scsi_Host::host_lock held on entry (with "irqsave")
* and is expected to be held on return.
* command and must take responsibility for ensuring the
* scp->scsi_done callback is executed. Note: the driver may
* call scp->scsi_done before returning zero, but after it has
* called scp->scsi_done, it may not return any value other than
* zero. If the driver makes a non-zero return, it must not
* execute the command's scsi_done callback at any time.
*
* Locks: up to and including 2.6.36, struct Scsi_Host::host_lock
* held on entry (with "irqsave") and is expected to be
* held on return. From 2.6.37 onwards, queuecommand is
* called without any locks held.
*
* Calling context: in interrupt (soft irq) or process context
*
* Notes: This function should be relatively fast. Normally it will
* not wait for IO to complete. Hence the 'done' callback is invoked
* (often directly from an interrupt service routine) some time after
* this function has returned. In some cases (e.g. pseudo adapter
* drivers that manufacture the response to a SCSI INQUIRY)
* the 'done' callback may be invoked before this function returns.
* If the 'done' callback is not invoked within a certain period
* the SCSI mid level will commence error processing.
* If a status of CHECK CONDITION is placed in "result" when the
* 'done' callback is invoked, then the LLD driver should
* perform autosense and fill in the struct scsi_cmnd::sense_buffer
* Notes: This function should be relatively fast. Normally it
* will not wait for IO to complete. Hence the scp->scsi_done
* callback is invoked (often directly from an interrupt service
* routine) some time after this function has returned. In some
* cases (e.g. pseudo adapter drivers that manufacture the
* response to a SCSI INQUIRY) the scp->scsi_done callback may be
* invoked before this function returns. If the scp->scsi_done
* callback is not invoked within a certain period the SCSI mid
* level will commence error processing. If a status of CHECK
* CONDITION is placed in "result" when the scp->scsi_done
* callback is invoked, then the LLD driver should perform
* autosense and fill in the struct scsi_cmnd::sense_buffer
* array. The scsi_cmnd::sense_buffer array is zeroed prior to
* the mid level queuing a command to an LLD.
*
* Defined in: LLD
**/
int queuecommand(struct scsi_cmnd * scp,
void (*done)(struct scsi_cmnd *))
int queuecommand(struct Scsi_Host *shost, struct scsi_cmnd * scp)


/**
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -373,9 +373,18 @@ sub process_events {
print " $regex_lru_isolate/o\n";
next;
}
my $isolate_mode = $1;
my $nr_scanned = $4;
my $nr_contig_dirty = $7;
$perprocesspid{$process_pid}->{HIGH_NR_SCANNED} += $nr_scanned;

# To closer match vmstat scanning statistics, only count isolate_both
# and isolate_inactive as scanning. isolate_active is rotation
# isolate_inactive == 0
# isolate_active == 1
# isolate_both == 2
if ($isolate_mode != 1) {
$perprocesspid{$process_pid}->{HIGH_NR_SCANNED} += $nr_scanned;
}
$perprocesspid{$process_pid}->{HIGH_NR_CONTIG_DIRTY} += $nr_contig_dirty;
} elsif ($tracepoint eq "mm_vmscan_lru_shrink_inactive") {
$details = $5;
Expand Down
4 changes: 2 additions & 2 deletions trunk/MAINTAINERS
Original file line number Diff line number Diff line change
Expand Up @@ -405,7 +405,7 @@ S: Supported
F: drivers/usb/gadget/amd5536udc.*

AMD GEODE PROCESSOR/CHIPSET SUPPORT
P: Jordan Crouse
P: Andres Salomon <dilinger@queued.net>
L: linux-geode@lists.infradead.org (moderated for non-subscribers)
W: http://www.amd.com/us-en/ConnectivitySolutions/TechnicalResources/0,,50_2334_2452_11363,00.html
S: Supported
Expand Down Expand Up @@ -4590,7 +4590,7 @@ F: drivers/pcmcia/
F: include/pcmcia/

PCNET32 NETWORK DRIVER
M: Don Fry <pcnet32@verizon.net>
M: Don Fry <pcnet32@frontier.com>
L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/pcnet32.c
Expand Down
1 change: 1 addition & 0 deletions trunk/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,7 @@
#include <linux/of_gpio.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/watchdog.h>
#include <linux/miscdevice.h>
#include <linux/uaccess.h>
Expand Down
17 changes: 14 additions & 3 deletions trunk/arch/x86/kernel/setup.c
Original file line number Diff line number Diff line change
Expand Up @@ -501,7 +501,18 @@ static inline unsigned long long get_total_mem(void)
return total << PAGE_SHIFT;
}

#define DEFAULT_BZIMAGE_ADDR_MAX 0x37FFFFFF
/*
* Keep the crash kernel below this limit. On 32 bits earlier kernels
* would limit the kernel to the low 512 MiB due to mapping restrictions.
* On 64 bits, kexec-tools currently limits us to 896 MiB; increase this
* limit once kexec-tools are fixed.
*/
#ifdef CONFIG_X86_32
# define CRASH_KERNEL_ADDR_MAX (512 << 20)
#else
# define CRASH_KERNEL_ADDR_MAX (896 << 20)
#endif

static void __init reserve_crashkernel(void)
{
unsigned long long total_mem;
Expand All @@ -520,10 +531,10 @@ static void __init reserve_crashkernel(void)
const unsigned long long alignment = 16<<20; /* 16M */

/*
* kexec want bzImage is below DEFAULT_BZIMAGE_ADDR_MAX
* kexec want bzImage is below CRASH_KERNEL_ADDR_MAX
*/
crash_base = memblock_find_in_range(alignment,
DEFAULT_BZIMAGE_ADDR_MAX, crash_size, alignment);
CRASH_KERNEL_ADDR_MAX, crash_size, alignment);

if (crash_base == MEMBLOCK_ERROR) {
pr_info("crashkernel reservation failed - No suitable area found.\n");
Expand Down
3 changes: 3 additions & 0 deletions trunk/drivers/acpi/acpica/evgpeinit.c
Original file line number Diff line number Diff line change
Expand Up @@ -408,6 +408,9 @@ acpi_ev_match_gpe_method(acpi_handle obj_handle,
return_ACPI_STATUS(AE_OK);
}

/* Disable the GPE in case it's been enabled already. */
(void)acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE);

/*
* Add the GPE information from above to the gpe_event_info block for
* use during dispatch of this GPE.
Expand Down
5 changes: 0 additions & 5 deletions trunk/drivers/acpi/battery.c
Original file line number Diff line number Diff line change
Expand Up @@ -130,8 +130,6 @@ struct acpi_battery {
unsigned long flags;
};

static int acpi_battery_update(struct acpi_battery *battery);

#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat);

inline int acpi_battery_present(struct acpi_battery *battery)
Expand Down Expand Up @@ -186,9 +184,6 @@ static int acpi_battery_get_property(struct power_supply *psy,
int ret = 0;
struct acpi_battery *battery = to_acpi_battery(psy);

if (acpi_battery_update(battery))
return -ENODEV;

if (acpi_battery_present(battery)) {
/* run battery update only if it is present */
acpi_battery_get_state(battery);
Expand Down
97 changes: 60 additions & 37 deletions trunk/drivers/acpi/scan.c
Original file line number Diff line number Diff line change
Expand Up @@ -705,54 +705,85 @@ static int acpi_bus_get_perf_flags(struct acpi_device *device)
}

static acpi_status
acpi_bus_extract_wakeup_device_power_package(struct acpi_device *device,
union acpi_object *package)
acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
struct acpi_device_wakeup *wakeup)
{
int i = 0;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *package = NULL;
union acpi_object *element = NULL;
acpi_status status;
int i = 0;

if (!device || !package || (package->package.count < 2))
if (!wakeup)
return AE_BAD_PARAMETER;

/* _PRW */
status = acpi_evaluate_object(handle, "_PRW", NULL, &buffer);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRW"));
return status;
}

package = (union acpi_object *)buffer.pointer;

if (!package || (package->package.count < 2)) {
status = AE_BAD_DATA;
goto out;
}

element = &(package->package.elements[0]);
if (!element)
return AE_BAD_PARAMETER;
if (!element) {
status = AE_BAD_DATA;
goto out;
}
if (element->type == ACPI_TYPE_PACKAGE) {
if ((element->package.count < 2) ||
(element->package.elements[0].type !=
ACPI_TYPE_LOCAL_REFERENCE)
|| (element->package.elements[1].type != ACPI_TYPE_INTEGER))
return AE_BAD_DATA;
device->wakeup.gpe_device =
|| (element->package.elements[1].type != ACPI_TYPE_INTEGER)) {
status = AE_BAD_DATA;
goto out;
}
wakeup->gpe_device =
element->package.elements[0].reference.handle;
device->wakeup.gpe_number =
wakeup->gpe_number =
(u32) element->package.elements[1].integer.value;
} else if (element->type == ACPI_TYPE_INTEGER) {
device->wakeup.gpe_number = element->integer.value;
} else
return AE_BAD_DATA;
wakeup->gpe_device = NULL;
wakeup->gpe_number = element->integer.value;
} else {
status = AE_BAD_DATA;
goto out;
}

element = &(package->package.elements[1]);
if (element->type != ACPI_TYPE_INTEGER) {
return AE_BAD_DATA;
status = AE_BAD_DATA;
goto out;
}
device->wakeup.sleep_state = element->integer.value;
wakeup->sleep_state = element->integer.value;

if ((package->package.count - 2) > ACPI_MAX_HANDLES) {
return AE_NO_MEMORY;
status = AE_NO_MEMORY;
goto out;
}
device->wakeup.resources.count = package->package.count - 2;
for (i = 0; i < device->wakeup.resources.count; i++) {
wakeup->resources.count = package->package.count - 2;
for (i = 0; i < wakeup->resources.count; i++) {
element = &(package->package.elements[i + 2]);
if (element->type != ACPI_TYPE_LOCAL_REFERENCE)
return AE_BAD_DATA;
if (element->type != ACPI_TYPE_LOCAL_REFERENCE) {
status = AE_BAD_DATA;
goto out;
}

device->wakeup.resources.handles[i] = element->reference.handle;
wakeup->resources.handles[i] = element->reference.handle;
}

acpi_gpe_can_wake(device->wakeup.gpe_device, device->wakeup.gpe_number);
acpi_gpe_can_wake(wakeup->gpe_device, wakeup->gpe_number);

return AE_OK;
out:
kfree(buffer.pointer);

return status;
}

static void acpi_bus_set_run_wake_flags(struct acpi_device *device)
Expand Down Expand Up @@ -787,26 +818,15 @@ static void acpi_bus_set_run_wake_flags(struct acpi_device *device)
static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
{
acpi_status status = 0;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *package = NULL;
int psw_error;

/* _PRW */
status = acpi_evaluate_object(device->handle, "_PRW", NULL, &buffer);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRW"));
goto end;
}

package = (union acpi_object *)buffer.pointer;
status = acpi_bus_extract_wakeup_device_power_package(device, package);
status = acpi_bus_extract_wakeup_device_power_package(device->handle,
&device->wakeup);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Extracting _PRW package"));
goto end;
}

kfree(buffer.pointer);

device->wakeup.flags.valid = 1;
device->wakeup.prepare_count = 0;
acpi_bus_set_run_wake_flags(device);
Expand Down Expand Up @@ -1351,6 +1371,7 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl,
struct acpi_bus_ops *ops = context;
int type;
unsigned long long sta;
struct acpi_device_wakeup wakeup;
struct acpi_device *device;
acpi_status status;
int result;
Expand All @@ -1360,8 +1381,10 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl,
return AE_OK;

if (!(sta & ACPI_STA_DEVICE_PRESENT) &&
!(sta & ACPI_STA_DEVICE_FUNCTIONING))
!(sta & ACPI_STA_DEVICE_FUNCTIONING)) {
acpi_bus_extract_wakeup_device_power_package(handle, &wakeup);
return AE_CTRL_DEPTH;
}

/*
* We may already have an acpi_device from a previous enumeration. If
Expand Down
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