AcoSail/kernel_optimize_test
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This commit is contained in:
Tony Luck 2005-12-05 11:50:17 -08:00
commit 3e356b2660
36 changed files with 354 additions and 224 deletions
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9
MAINTAINERS
View File

@ -1636,6 +1636,15 @@ L: ldm-devel@lists.sourceforge.net
W: http://ldm.sourceforge.net
S: Maintained
LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
P: Eric Moore
M: Eric.Moore@lsil.com
M: support@lsil.com
L: mpt_linux_developer@lsil.com
L: linux-scsi@vger.kernel.org
W: http://www.lsilogic.com/support
S: Supported
LSILOGIC/SYMBIOS/NCR 53C8XX and 53C1010 PCI-SCSI drivers
P: Matthew Wilcox
M: matthew@wil.cx

2
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 15
EXTRAVERSION =-rc4
EXTRAVERSION =-rc5
NAME=Affluent Albatross
# *DOCUMENTATION*

3
drivers/Makefile
View File

@ -5,7 +5,7 @@
# Rewritten to use lists instead of if-statements.
#
obj-$(CONFIG_PCI) += pci/ usb/
obj-$(CONFIG_PCI) += pci/
obj-$(CONFIG_PARISC) += parisc/
obj-$(CONFIG_RAPIDIO) += rapidio/
obj-y += video/
@ -49,6 +49,7 @@ obj-$(CONFIG_ATA_OVER_ETH) += block/aoe/
obj-$(CONFIG_PARIDE) += block/paride/
obj-$(CONFIG_TC) += tc/
obj-$(CONFIG_USB) += usb/
obj-$(CONFIG_PCI) += usb/
obj-$(CONFIG_USB_GADGET) += usb/gadget/
obj-$(CONFIG_GAMEPORT) += input/gameport/
obj-$(CONFIG_INPUT) += input/

22
drivers/acpi/processor_idle.c
View File

@ -169,15 +169,11 @@ acpi_processor_power_activate(struct acpi_processor *pr,
static void acpi_safe_halt(void)
{
int polling = test_thread_flag(TIF_POLLING_NRFLAG);
if (polling) {
clear_thread_flag(TIF_POLLING_NRFLAG);
smp_mb__after_clear_bit();
}
clear_thread_flag(TIF_POLLING_NRFLAG);
smp_mb__after_clear_bit();
if (!need_resched())
safe_halt();
if (polling)
set_thread_flag(TIF_POLLING_NRFLAG);
set_thread_flag(TIF_POLLING_NRFLAG);
}
static atomic_t c3_cpu_count;
@ -295,6 +291,16 @@ static void acpi_processor_idle(void)
* ------
* Invoke the current Cx state to put the processor to sleep.
*/
if (cx->type == ACPI_STATE_C2 || cx->type == ACPI_STATE_C3) {
clear_thread_flag(TIF_POLLING_NRFLAG);
smp_mb__after_clear_bit();
if (need_resched()) {
set_thread_flag(TIF_POLLING_NRFLAG);
local_irq_enable();
return;
}
}
switch (cx->type) {
case ACPI_STATE_C1:
@ -327,6 +333,7 @@ static void acpi_processor_idle(void)
t2 = inl(acpi_fadt.xpm_tmr_blk.address);
/* Re-enable interrupts */
local_irq_enable();
set_thread_flag(TIF_POLLING_NRFLAG);
/* Compute time (ticks) that we were actually asleep */
sleep_ticks =
ticks_elapsed(t1, t2) - cx->latency_ticks - C2_OVERHEAD;
@ -366,6 +373,7 @@ static void acpi_processor_idle(void)
/* Re-enable interrupts */
local_irq_enable();
set_thread_flag(TIF_POLLING_NRFLAG);
/* Compute time (ticks) that we were actually asleep */
sleep_ticks =
ticks_elapsed(t1, t2) - cx->latency_ticks - C3_OVERHEAD;

2
drivers/media/video/cx88/cx88-cards.c
View File

@ -567,6 +567,7 @@ struct cx88_board cx88_boards[] = {
.radio_type = UNSET,
.tuner_addr = ADDR_UNSET,
.radio_addr = ADDR_UNSET,
.tda9887_conf = TDA9887_PRESENT,
.input = {{
.type = CX88_VMUX_TELEVISION,
.vmux = 0,
@ -711,6 +712,7 @@ struct cx88_board cx88_boards[] = {
.radio_type = UNSET,
.tuner_addr = ADDR_UNSET,
.radio_addr = ADDR_UNSET,
.tda9887_conf = TDA9887_PRESENT,
.input = {{
.type = CX88_VMUX_TELEVISION,
.vmux = 0,

64
drivers/message/fusion/mptbase.c
View File

@ -1118,6 +1118,65 @@ mpt_verify_adapter(int iocid, MPT_ADAPTER **iocpp)
return -1;
}
int
mpt_alt_ioc_wait(MPT_ADAPTER *ioc)
{
int loop_count = 30 * 4; /* Wait 30 seconds */
int status = -1; /* -1 means failed to get board READY */
do {
spin_lock(&ioc->initializing_hba_lock);
if (ioc->initializing_hba_lock_flag == 0) {
ioc->initializing_hba_lock_flag=1;
spin_unlock(&ioc->initializing_hba_lock);
status = 0;
break;
}
spin_unlock(&ioc->initializing_hba_lock);
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(HZ/4);
} while (--loop_count);
return status;
}
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
* mpt_bringup_adapter - This is a wrapper function for mpt_do_ioc_recovery
* @ioc: Pointer to MPT adapter structure
* @sleepFlag: Use schedule if CAN_SLEEP else use udelay.
*
* This routine performs all the steps necessary to bring the IOC
* to a OPERATIONAL state.
*
* Special Note: This function was added with spin lock's so as to allow
* the dv(domain validation) work thread to succeed on the other channel
* that maybe occuring at the same time when this function is called.
* Without this lock, the dv would fail when message frames were
* requested during hba bringup on the alternate ioc.
*/
static int
mpt_bringup_adapter(MPT_ADAPTER *ioc, int sleepFlag)
{
int r;
if(ioc->alt_ioc) {
if((r=mpt_alt_ioc_wait(ioc->alt_ioc)!=0))
return r;
}
r = mpt_do_ioc_recovery(ioc, MPT_HOSTEVENT_IOC_BRINGUP,
CAN_SLEEP);
if(ioc->alt_ioc) {
spin_lock(&ioc->alt_ioc->initializing_hba_lock);
ioc->alt_ioc->initializing_hba_lock_flag=0;
spin_unlock(&ioc->alt_ioc->initializing_hba_lock);
}
return r;
}
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/*
* mpt_attach - Install a PCI intelligent MPT adapter.
@ -1186,6 +1245,7 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
ioc->pcidev = pdev;
ioc->diagPending = 0;
spin_lock_init(&ioc->diagLock);
spin_lock_init(&ioc->initializing_hba_lock);
/* Initialize the event logging.
*/
@ -1408,8 +1468,7 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
*/
mpt_detect_bound_ports(ioc, pdev);
if ((r = mpt_do_ioc_recovery(ioc,
MPT_HOSTEVENT_IOC_BRINGUP, CAN_SLEEP)) != 0) {
if ((r = mpt_bringup_adapter(ioc, CAN_SLEEP)) != 0){
printk(KERN_WARNING MYNAM
": WARNING - %s did not initialize properly! (%d)\n",
ioc->name, r);
@ -6298,6 +6357,7 @@ EXPORT_SYMBOL(mpt_read_ioc_pg_3);
EXPORT_SYMBOL(mpt_alloc_fw_memory);
EXPORT_SYMBOL(mpt_free_fw_memory);
EXPORT_SYMBOL(mptbase_sas_persist_operation);
EXPORT_SYMBOL(mpt_alt_ioc_wait);
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/

3
drivers/message/fusion/mptbase.h
View File

@ -611,6 +611,8 @@ typedef struct _MPT_ADAPTER
int DoneCtx;
int TaskCtx;
int InternalCtx;
spinlock_t initializing_hba_lock;
int initializing_hba_lock_flag;
struct list_head list;
struct net_device *netdev;
struct list_head sas_topology;
@ -1001,6 +1003,7 @@ extern void mpt_free_fw_memory(MPT_ADAPTER *ioc);
extern int mpt_findImVolumes(MPT_ADAPTER *ioc);
extern int mpt_read_ioc_pg_3(MPT_ADAPTER *ioc);
extern int mptbase_sas_persist_operation(MPT_ADAPTER *ioc, u8 persist_opcode);
extern int mpt_alt_ioc_wait(MPT_ADAPTER *ioc);
/*
* Public data decl's...

10
drivers/message/fusion/mptscsih.c
View File

@ -4162,6 +4162,12 @@ mptscsih_domainValidation(void *arg)
}
}
if(mpt_alt_ioc_wait(hd->ioc)!=0) {
ddvprintk((MYIOC_s_WARN_FMT "alt_ioc busy!\n",
hd->ioc->name));
continue;
}
if (mptscsih_doDv(hd, 0, id) == 1) {
/* Untagged device was busy, try again
*/
@ -4173,6 +4179,10 @@ mptscsih_domainValidation(void *arg)
hd->ioc->spi_data.dvStatus[id] &= ~(MPT_SCSICFG_DV_NOT_DONE | MPT_SCSICFG_DV_PENDING);
}
spin_lock(&hd->ioc->initializing_hba_lock);
hd->ioc->initializing_hba_lock_flag=0;
spin_unlock(&hd->ioc->initializing_hba_lock);
if (isPhysDisk) {
for (ii=0; ii < MPT_MAX_SCSI_DEVICES; ii++) {
if (hd->ioc->raid_data.isRaid & (1 << ii)) {

14
drivers/s390/scsi/zfcp_aux.c
View File

@ -996,6 +996,20 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device)
spin_lock_init(&adapter->fsf_req_list_lock);
INIT_LIST_HEAD(&adapter->fsf_req_list_head);
/* initialize debug locks */
spin_lock_init(&adapter->erp_dbf_lock);
spin_lock_init(&adapter->hba_dbf_lock);
spin_lock_init(&adapter->san_dbf_lock);
spin_lock_init(&adapter->scsi_dbf_lock);
/* initialize error recovery stuff */
rwlock_init(&adapter->erp_lock);
sema_init(&adapter->erp_ready_sem, 0);
INIT_LIST_HEAD(&adapter->erp_ready_head);
INIT_LIST_HEAD(&adapter->erp_running_head);
/* initialize abort lock */
rwlock_init(&adapter->abort_lock);

4
drivers/s390/scsi/zfcp_dbf.c
View File

@ -926,7 +926,6 @@ int zfcp_adapter_debug_register(struct zfcp_adapter *adapter)
char dbf_name[DEBUG_MAX_NAME_LEN];
/* debug feature area which records recovery activity */
spin_lock_init(&adapter->erp_dbf_lock);
sprintf(dbf_name, "zfcp_%s_erp", zfcp_get_busid_by_adapter(adapter));
adapter->erp_dbf = debug_register(dbf_name, dbfsize, 2,
sizeof(struct zfcp_erp_dbf_record));
@ -936,7 +935,6 @@ int zfcp_adapter_debug_register(struct zfcp_adapter *adapter)
debug_set_level(adapter->erp_dbf, 3);
/* debug feature area which records HBA (FSF and QDIO) conditions */
spin_lock_init(&adapter->hba_dbf_lock);
sprintf(dbf_name, "zfcp_%s_hba", zfcp_get_busid_by_adapter(adapter));
adapter->hba_dbf = debug_register(dbf_name, dbfsize, 1,
sizeof(struct zfcp_hba_dbf_record));
@ -947,7 +945,6 @@ int zfcp_adapter_debug_register(struct zfcp_adapter *adapter)
debug_set_level(adapter->hba_dbf, 3);
/* debug feature area which records SAN command failures and recovery */
spin_lock_init(&adapter->san_dbf_lock);
sprintf(dbf_name, "zfcp_%s_san", zfcp_get_busid_by_adapter(adapter));
adapter->san_dbf = debug_register(dbf_name, dbfsize, 1,
sizeof(struct zfcp_san_dbf_record));
@ -958,7 +955,6 @@ int zfcp_adapter_debug_register(struct zfcp_adapter *adapter)
debug_set_level(adapter->san_dbf, 6);
/* debug feature area which records SCSI command failures and recovery */
spin_lock_init(&adapter->scsi_dbf_lock);
sprintf(dbf_name, "zfcp_%s_scsi", zfcp_get_busid_by_adapter(adapter));
adapter->scsi_dbf = debug_register(dbf_name, dbfsize, 1,
sizeof(struct zfcp_scsi_dbf_record));

94
drivers/s390/scsi/zfcp_erp.c
View File

@ -1071,11 +1071,6 @@ zfcp_erp_thread_setup(struct zfcp_adapter *adapter)
atomic_clear_mask(ZFCP_STATUS_ADAPTER_ERP_THREAD_UP, &adapter->status);
rwlock_init(&adapter->erp_lock);
INIT_LIST_HEAD(&adapter->erp_ready_head);
INIT_LIST_HEAD(&adapter->erp_running_head);
sema_init(&adapter->erp_ready_sem, 0);
retval = kernel_thread(zfcp_erp_thread, adapter, SIGCHLD);
if (retval < 0) {
ZFCP_LOG_NORMAL("error: creation of erp thread failed for "
@ -2248,29 +2243,26 @@ zfcp_erp_adapter_strategy_close_qdio(struct zfcp_erp_action *erp_action)
return retval;
}
/*
* function: zfcp_fsf_init
*
* purpose: initializes FSF operation for the specified adapter
*
* returns: 0 - succesful initialization of FSF operation
* !0 - failed to initialize FSF operation
*/
static int
zfcp_erp_adapter_strategy_open_fsf(struct zfcp_erp_action *erp_action)
{
int xconfig, xport;
int retval;
if (atomic_test_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
&erp_action->adapter->status)) {
if ((atomic_test_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
&erp_action->adapter->status)) &&
(erp_action->adapter->adapter_features &
FSF_FEATURE_HBAAPI_MANAGEMENT)) {
zfcp_erp_adapter_strategy_open_fsf_xport(erp_action);
atomic_set(&erp_action->adapter->erp_counter, 0);
return ZFCP_ERP_FAILED;
}
xconfig = zfcp_erp_adapter_strategy_open_fsf_xconfig(erp_action);
xport = zfcp_erp_adapter_strategy_open_fsf_xport(erp_action);
if ((xconfig == ZFCP_ERP_FAILED) || (xport == ZFCP_ERP_FAILED))
retval = zfcp_erp_adapter_strategy_open_fsf_xconfig(erp_action);
if (retval == ZFCP_ERP_FAILED)
return ZFCP_ERP_FAILED;
retval = zfcp_erp_adapter_strategy_open_fsf_xport(erp_action);
if (retval == ZFCP_ERP_FAILED)
return ZFCP_ERP_FAILED;
return zfcp_erp_adapter_strategy_open_fsf_statusread(erp_action);
@ -2359,41 +2351,29 @@ zfcp_erp_adapter_strategy_open_fsf_xconfig(struct zfcp_erp_action *erp_action)
static int
zfcp_erp_adapter_strategy_open_fsf_xport(struct zfcp_erp_action *erp_action)
{
int retval = ZFCP_ERP_SUCCEEDED;
int ret;
int retries;
int sleep;
struct zfcp_adapter *adapter = erp_action->adapter;
atomic_clear_mask(ZFCP_STATUS_ADAPTER_XPORT_OK, &adapter->status);
for (retries = 0; ; retries++) {
ZFCP_LOG_DEBUG("Doing exchange port data\n");
retries = 0;
do {
write_lock(&adapter->erp_lock);
zfcp_erp_action_to_running(erp_action);
write_unlock(&adapter->erp_lock);
zfcp_erp_timeout_init(erp_action);
if (zfcp_fsf_exchange_port_data(erp_action, adapter, NULL)) {
retval = ZFCP_ERP_FAILED;
debug_text_event(adapter->erp_dbf, 5, "a_fstx_xf");
ZFCP_LOG_INFO("error: initiation of exchange of "
"port data failed for adapter %s\n",
zfcp_get_busid_by_adapter(adapter));
break;
ret = zfcp_fsf_exchange_port_data(erp_action, adapter, NULL);
if (ret == -EOPNOTSUPP) {
debug_text_event(adapter->erp_dbf, 3, "a_xport_notsupp");
return ZFCP_ERP_SUCCEEDED;
} else if (ret) {
debug_text_event(adapter->erp_dbf, 3, "a_xport_failed");
return ZFCP_ERP_FAILED;
}
debug_text_event(adapter->erp_dbf, 6, "a_fstx_xok");
ZFCP_LOG_DEBUG("Xchange underway\n");
debug_text_event(adapter->erp_dbf, 6, "a_xport_ok");
/*
* Why this works:
* Both the normal completion handler as well as the timeout
* handler will do an 'up' when the 'exchange port data'
* request completes or times out. Thus, the signal to go on
* won't be lost utilizing this semaphore.
* Furthermore, this 'adapter_reopen' action is
* guaranteed to be the only action being there (highest action
* which prevents other actions from being created).
* Resulting from that, the wake signal recognized here
* _must_ be the one belonging to the 'exchange port
* data' request.
*/
down(&adapter->erp_ready_sem);
if (erp_action->status & ZFCP_STATUS_ERP_TIMEDOUT) {
ZFCP_LOG_INFO("error: exchange of port data "
@ -2401,29 +2381,19 @@ zfcp_erp_adapter_strategy_open_fsf_xport(struct zfcp_erp_action *erp_action)
zfcp_get_busid_by_adapter(adapter));
break;
}
if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
&adapter->status))
break;
ZFCP_LOG_DEBUG("host connection still initialising... "
"waiting and retrying...\n");
/* sleep a little bit before retry */
sleep = retries < ZFCP_EXCHANGE_PORT_DATA_SHORT_RETRIES ?
ZFCP_EXCHANGE_PORT_DATA_SHORT_SLEEP :
ZFCP_EXCHANGE_PORT_DATA_LONG_SLEEP;
msleep(jiffies_to_msecs(sleep));
}
if (retries < ZFCP_EXCHANGE_PORT_DATA_SHORT_RETRIES) {
sleep = ZFCP_EXCHANGE_PORT_DATA_SHORT_SLEEP;
retries++;
} else
sleep = ZFCP_EXCHANGE_PORT_DATA_LONG_SLEEP;
schedule_timeout(sleep);
} while (1);
if (atomic_test_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
&adapter->status)) {
ZFCP_LOG_INFO("error: exchange of port data for "
"adapter %s failed\n",
zfcp_get_busid_by_adapter(adapter));
retval = ZFCP_ERP_FAILED;
}
return retval;
return ZFCP_ERP_SUCCEEDED;
}
/*

110
drivers/s390/scsi/zfcp_fsf.c
View File

@ -554,6 +554,17 @@ static void
zfcp_fsf_link_down_info_eval(struct zfcp_adapter *adapter,
struct fsf_link_down_info *link_down)
{
if (atomic_test_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
&adapter->status))
return;
atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status);
if (link_down == NULL) {
zfcp_erp_adapter_reopen(adapter, 0);
return;
}
switch (link_down->error_code) {
case FSF_PSQ_LINK_NO_LIGHT:
ZFCP_LOG_NORMAL("The local link to adapter %s is down "
@ -634,20 +645,15 @@ zfcp_fsf_link_down_info_eval(struct zfcp_adapter *adapter,
link_down->explanation_code,
link_down->vendor_specific_code);
if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
&adapter->status)) {
atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
&adapter->status);
switch (link_down->error_code) {
case FSF_PSQ_LINK_NO_LIGHT:
case FSF_PSQ_LINK_WRAP_PLUG:
case FSF_PSQ_LINK_NO_FCP:
case FSF_PSQ_LINK_FIRMWARE_UPDATE:
zfcp_erp_adapter_reopen(adapter, 0);
break;
default:
zfcp_erp_adapter_failed(adapter);
}
switch (link_down->error_code) {
case FSF_PSQ_LINK_NO_LIGHT:
case FSF_PSQ_LINK_WRAP_PLUG:
case FSF_PSQ_LINK_NO_FCP:
case FSF_PSQ_LINK_FIRMWARE_UPDATE:
zfcp_erp_adapter_reopen(adapter, 0);
break;
default:
zfcp_erp_adapter_failed(adapter);
}
}
@ -919,30 +925,36 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req)
case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK:
ZFCP_LOG_INFO("Physical link to adapter %s is down\n",
zfcp_get_busid_by_adapter(adapter));
zfcp_fsf_link_down_info_eval(adapter,
(struct fsf_link_down_info *)
&status_buffer->payload);
break;
case FSF_STATUS_READ_SUB_FDISC_FAILED:
ZFCP_LOG_INFO("Local link to adapter %s is down "
"due to failed FDISC login\n",
zfcp_get_busid_by_adapter(adapter));
zfcp_get_busid_by_adapter(adapter));
zfcp_fsf_link_down_info_eval(adapter,
(struct fsf_link_down_info *)
&status_buffer->payload);
break;
case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE:
ZFCP_LOG_INFO("Local link to adapter %s is down "
"due to firmware update on adapter\n",
zfcp_get_busid_by_adapter(adapter));
zfcp_fsf_link_down_info_eval(adapter, NULL);
break;
default:
ZFCP_LOG_INFO("Local link to adapter %s is down "
"due to unknown reason\n",
zfcp_get_busid_by_adapter(adapter));
zfcp_fsf_link_down_info_eval(adapter, NULL);
};
zfcp_fsf_link_down_info_eval(adapter,
(struct fsf_link_down_info *) &status_buffer->payload);
break;
case FSF_STATUS_READ_LINK_UP:
ZFCP_LOG_NORMAL("Local link to adapter %s was replugged. "
"Restarting operations on this adapter\n",
zfcp_get_busid_by_adapter(adapter));
"Restarting operations on this adapter\n",
zfcp_get_busid_by_adapter(adapter));
/* All ports should be marked as ready to run again */
zfcp_erp_modify_adapter_status(adapter,
ZFCP_STATUS_COMMON_RUNNING,
@ -2191,13 +2203,10 @@ zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action,
return -EOPNOTSUPP;
}
timer = kmalloc(sizeof(struct timer_list), GFP_KERNEL);
if (!timer)
return -ENOMEM;
/* setup new FSF request */
retval = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA,
0, 0, &lock_flags, &fsf_req);
erp_action ? ZFCP_REQ_AUTO_CLEANUP : 0,
0, &lock_flags, &fsf_req);
if (retval < 0) {
ZFCP_LOG_INFO("error: Out of resources. Could not create an "
"exchange port data request for"
@ -2205,25 +2214,33 @@ zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action,
zfcp_get_busid_by_adapter(adapter));
write_unlock_irqrestore(&adapter->request_queue.queue_lock,
lock_flags);
goto out;
}
if (erp_action) {
erp_action->fsf_req = fsf_req;
fsf_req->erp_action = erp_action;
return retval;
}
if (data)
fsf_req->data = (unsigned long) data;
fsf_req->data = (unsigned long) data;
sbale = zfcp_qdio_sbale_req(fsf_req, fsf_req->sbal_curr, 0);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
init_timer(timer);
timer->function = zfcp_fsf_request_timeout_handler;
timer->data = (unsigned long) adapter;
timer->expires = ZFCP_FSF_REQUEST_TIMEOUT;
if (erp_action) {
erp_action->fsf_req = fsf_req;
fsf_req->erp_action = erp_action;
timer = &erp_action->timer;
} else {
timer = kmalloc(sizeof(struct timer_list), GFP_ATOMIC);
if (!timer) {
write_unlock_irqrestore(&adapter->request_queue.queue_lock,
lock_flags);
zfcp_fsf_req_free(fsf_req);
return -ENOMEM;
}
init_timer(timer);
timer->function = zfcp_fsf_request_timeout_handler;
timer->data = (unsigned long) adapter;
timer->expires = ZFCP_FSF_REQUEST_TIMEOUT;
}
retval = zfcp_fsf_req_send(fsf_req, timer);
if (retval) {
@ -2233,23 +2250,22 @@ zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action,
zfcp_fsf_req_free(fsf_req);
if (erp_action)
erp_action->fsf_req = NULL;
else
kfree(timer);
write_unlock_irqrestore(&adapter->request_queue.queue_lock,
lock_flags);
goto out;
return retval;
}
ZFCP_LOG_DEBUG("Exchange Port Data request initiated (adapter %s)\n",
zfcp_get_busid_by_adapter(adapter));
write_unlock_irqrestore(&adapter->request_queue.queue_lock, lock_flags);
write_unlock_irqrestore(&adapter->request_queue.queue_lock,
lock_flags);
wait_event(fsf_req->completion_wq,
fsf_req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
del_timer_sync(timer);
zfcp_fsf_req_free(fsf_req);
out:
kfree(timer);
if (!erp_action) {
wait_event(fsf_req->completion_wq,
fsf_req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
del_timer_sync(timer);
zfcp_fsf_req_free(fsf_req);
kfree(timer);
}
return retval;
}

2
drivers/s390/scsi/zfcp_scsi.c
View File

@ -179,7 +179,7 @@ zfcp_scsi_slave_alloc(struct scsi_device *sdp)
struct zfcp_adapter *adapter;
struct zfcp_unit *unit;
unsigned long flags;
int retval = -ENODEV;
int retval = -ENXIO;
adapter = (struct zfcp_adapter *) sdp->host->hostdata[0];
if (!adapter)

2
drivers/scsi/aacraid/linit.c
View File

@ -325,6 +325,8 @@ static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
* translations ( 64/32, 128/32, 255/63 ).
*/
buf = scsi_bios_ptable(bdev);
if (!buf)
return 0;
if(*(__le16 *)(buf + 0x40) == cpu_to_le16(0xaa55)) {
struct partition *first = (struct partition * )buf;
struct partition *entry = first;

2
drivers/scsi/aic7xxx/aic79xx_osm.c
View File

@ -2105,7 +2105,7 @@ ahd_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
scmd_id(cmd),
scmd_channel(cmd) + 'A',
CAM_LUN_WILDCARD,
SCB_LIST_NULL, ROLE_INITIATOR) == 0)
SCB_LIST_NULL, ROLE_INITIATOR))
break;
}
}

2
drivers/scsi/aic7xxx/aic7xxx_osm.c
View File

@ -2169,7 +2169,7 @@ ahc_linux_queue_recovery_cmd(struct scsi_cmnd *cmd, scb_flag flag)
if (ahc_match_scb(ahc, pending_scb, scmd_id(cmd),
scmd_channel(cmd) + 'A',
CAM_LUN_WILDCARD,
SCB_LIST_NULL, ROLE_INITIATOR) == 0)
SCB_LIST_NULL, ROLE_INITIATOR))
break;
}
}

9
drivers/scsi/libata-scsi.c
View File

@ -2239,7 +2239,7 @@ ata_scsi_pass_thru(struct ata_queued_cmd *qc, const u8 *scsicmd)
struct scsi_cmnd *cmd = qc->scsicmd;
if ((tf->protocol = ata_scsi_map_proto(scsicmd[1])) == ATA_PROT_UNKNOWN)
return 1;
goto invalid_fld;
/*
* 12 and 16 byte CDBs use different offsets to
@ -2301,7 +2301,7 @@ ata_scsi_pass_thru(struct ata_queued_cmd *qc, const u8 *scsicmd)
*/
if ((tf->command == ATA_CMD_SET_FEATURES)
&& (tf->feature == SETFEATURES_XFER))
return 1;
goto invalid_fld;
/*
* Set flags so that all registers will be written,
@ -2322,6 +2322,11 @@ ata_scsi_pass_thru(struct ata_queued_cmd *qc, const u8 *scsicmd)
qc->nsect = cmd->bufflen / ATA_SECT_SIZE;
return 0;
invalid_fld:
ata_scsi_set_sense(qc->scsicmd, ILLEGAL_REQUEST, 0x24, 0x00);
/* "Invalid field in cdb" */
return 1;
}
/**

9
drivers/scsi/scsi_lib.c
View File

@ -542,17 +542,10 @@ static void scsi_requeue_command(struct request_queue *q, struct scsi_cmnd *cmd)
void scsi_next_command(struct scsi_cmnd *cmd)
{
struct scsi_device *sdev = cmd->device;
struct request_queue *q = sdev->request_queue;
/* need to hold a reference on the device before we let go of the cmd */
get_device(&sdev->sdev_gendev);
struct request_queue *q = cmd->device->request_queue;
scsi_put_command(cmd);
scsi_run_queue(q);
/* ok to remove device now */
put_device(&sdev->sdev_gendev);
}
void scsi_run_host_queues(struct Scsi_Host *shost)

28
drivers/scsi/scsi_transport_spi.c
View File

@ -812,12 +812,10 @@ spi_dv_device_internal(struct scsi_device *sdev, u8 *buffer)
if (!scsi_device_sync(sdev) && !scsi_device_dt(sdev))
return;
/* see if the device has an echo buffer. If it does we can
* do the SPI pattern write tests */
len = 0;
if (scsi_device_dt(sdev))
len = spi_dv_device_get_echo_buffer(sdev, buffer);
/* len == -1 is the signal that we need to ascertain the
* presence of an echo buffer before trying to use it. len ==
* 0 means we don't have an echo buffer */
len = -1;
retry:
@ -840,11 +838,23 @@ spi_dv_device_internal(struct scsi_device *sdev, u8 *buffer)
if (spi_min_period(starget) == 8)
DV_SET(pcomp_en, 1);
}
/* Do the read only INQUIRY tests */
spi_dv_retrain(sdev, buffer, buffer + sdev->inquiry_len,
spi_dv_device_compare_inquiry);
/* See if we actually managed to negotiate and sustain DT */
if (i->f->get_dt)
i->f->get_dt(starget);
if (len == 0) {
/* see if the device has an echo buffer. If it does we can do
* the SPI pattern write tests. Because of some broken
* devices, we *only* try this on a device that has actually
* negotiated DT */
if (len == -1 && spi_dt(starget))
len = spi_dv_device_get_echo_buffer(sdev, buffer);
if (len <= 0) {
starget_printk(KERN_INFO, starget, "Domain Validation skipping write tests\n");
spi_dv_retrain(sdev, buffer, buffer + len,
spi_dv_device_compare_inquiry);
return;
}

6
drivers/scsi/sg.c
View File

@ -1860,9 +1860,11 @@ st_map_user_pages(struct scatterlist *sgl, const unsigned int max_pages,
unlock_page(pages[j]); */
res = 0;
out_unmap:
if (res > 0)
if (res > 0) {
for (j=0; j < res; j++)
page_cache_release(pages[j]);
res = 0;
}
kfree(pages);
return res;
}
@ -1878,8 +1880,6 @@ st_unmap_user_pages(struct scatterlist *sgl, const unsigned int nr_pages,
for (i=0; i < nr_pages; i++) {
struct page *page = sgl[i].page;
/* XXX: just for debug. Remove when PageReserved is removed */
BUG_ON(PageReserved(page));
if (dirtied)
SetPageDirty(page);
/* unlock_page(page); */

3
drivers/scsi/st.c
View File

@ -4509,6 +4509,7 @@ static int sgl_map_user_pages(struct scatterlist *sgl, const unsigned int max_pa
if (res > 0) {
for (j=0; j < res; j++)
page_cache_release(pages[j]);
res = 0;
}
kfree(pages);
return res;
@ -4524,8 +4525,6 @@ static int sgl_unmap_user_pages(struct scatterlist *sgl, const unsigned int nr_p
for (i=0; i < nr_pages; i++) {
struct page *page = sgl[i].page;
/* XXX: just for debug. Remove when PageReserved is removed */
BUG_ON(PageReserved(page));
if (dirtied)
SetPageDirty(page);
/* FIXME: cache flush missing for rw==READ

5
drivers/scsi/sym53c8xx_2/sym_glue.c
View File

@ -2086,6 +2086,7 @@ static void sym2_set_dt(struct scsi_target *starget, int dt)
tp->tgoal.check_nego = 1;
}
#if 0
static void sym2_set_iu(struct scsi_target *starget, int iu)
{
struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
@ -2111,7 +2112,7 @@ static void sym2_set_qas(struct scsi_target *starget, int qas)
tp->tgoal.qas = 0;
tp->tgoal.check_nego = 1;
}
#endif
static struct spi_function_template sym2_transport_functions = {
.set_offset = sym2_set_offset,
@ -2122,10 +2123,12 @@ static struct spi_function_template sym2_transport_functions = {
.show_width = 1,
.set_dt = sym2_set_dt,
.show_dt = 1,
#if 0
.set_iu = sym2_set_iu,
.show_iu = 1,
.set_qas = sym2_set_qas,
.show_qas = 1,
#endif
.get_signalling = sym2_get_signalling,
};

3
fs/nfs/dir.c
View File

@ -1287,6 +1287,7 @@ dentry->d_parent->d_name.name, dentry->d_name.name);
nfs_begin_data_update(dentry->d_inode);
error = NFS_PROTO(dir)->rename(dir, &dentry->d_name,
dir, &qsilly);
nfs_mark_for_revalidate(dentry->d_inode);
nfs_end_data_update(dentry->d_inode);
} else
error = NFS_PROTO(dir)->rename(dir, &dentry->d_name,
@ -1334,6 +1335,7 @@ static int nfs_safe_remove(struct dentry *dentry)
/* The VFS may want to delete this inode */
if (error == 0)
inode->i_nlink--;
nfs_mark_for_revalidate(inode);
nfs_end_data_update(inode);
} else
error = NFS_PROTO(dir)->remove(dir, &dentry->d_name);
@ -1556,6 +1558,7 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
nfs_begin_data_update(old_inode);
error = NFS_PROTO(old_dir)->rename(old_dir, &old_dentry->d_name,
new_dir, &new_dentry->d_name);
nfs_mark_for_revalidate(old_inode);
nfs_end_data_update(old_inode);
nfs_end_data_update(new_dir);
nfs_end_data_update(old_dir);

55
fs/nfs/inode.c
View File

@ -54,7 +54,7 @@
#define NFS_MAX_READAHEAD (RPC_DEF_SLOT_TABLE - 1)
static void nfs_invalidate_inode(struct inode *);
static int nfs_update_inode(struct inode *, struct nfs_fattr *, unsigned long);
static int nfs_update_inode(struct inode *, struct nfs_fattr *);
static struct inode *nfs_alloc_inode(struct super_block *sb);
static void nfs_destroy_inode(struct inode *);
@ -1080,8 +1080,6 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
int status = -ESTALE;
struct nfs_fattr fattr;
struct nfs_inode *nfsi = NFS_I(inode);
unsigned long verifier;
unsigned long cache_validity;
dfprintk(PAGECACHE, "NFS: revalidating (%s/%Ld)\n",
inode->i_sb->s_id, (long long)NFS_FILEID(inode));
@ -1106,8 +1104,6 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
}
}
/* Protect against RPC races by saving the change attribute */
verifier = nfs_save_change_attribute(inode);
status = NFS_PROTO(inode)->getattr(server, NFS_FH(inode), &fattr);
if (status != 0) {
dfprintk(PAGECACHE, "nfs_revalidate_inode: (%s/%Ld) getattr failed, error=%d\n",
@ -1122,7 +1118,7 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
}
spin_lock(&inode->i_lock);
status = nfs_update_inode(inode, &fattr, verifier);
status = nfs_update_inode(inode, &fattr);
if (status) {
spin_unlock(&inode->i_lock);
dfprintk(PAGECACHE, "nfs_revalidate_inode: (%s/%Ld) refresh failed, error=%d\n",
@ -1130,20 +1126,11 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
(long long)NFS_FILEID(inode), status);
goto out;
}
cache_validity = nfsi->cache_validity;
nfsi->cache_validity &= ~NFS_INO_REVAL_PAGECACHE;
/*
* We may need to keep the attributes marked as invalid if
* we raced with nfs_end_attr_update().
*/
if (time_after_eq(verifier, nfsi->cache_change_attribute))
nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME);
spin_unlock(&inode->i_lock);
nfs_revalidate_mapping(inode, inode->i_mapping);
if (cache_validity & NFS_INO_INVALID_ACL)
if (nfsi->cache_validity & NFS_INO_INVALID_ACL)
nfs_zap_acl_cache(inode);
dfprintk(PAGECACHE, "NFS: (%s/%Ld) revalidation complete\n",
@ -1346,10 +1333,8 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
return 0;
spin_lock(&inode->i_lock);
nfsi->cache_validity &= ~NFS_INO_REVAL_PAGECACHE;
if (nfs_verify_change_attribute(inode, fattr->time_start))
nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME);
if (time_after(fattr->time_start, nfsi->last_updated))
status = nfs_update_inode(inode, fattr, fattr->time_start);
status = nfs_update_inode(inode, fattr);
else
status = nfs_check_inode_attributes(inode, fattr);
@ -1375,10 +1360,7 @@ int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr)
nfsi->cache_validity |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS;
goto out;
}
status = nfs_update_inode(inode, fattr, fattr->time_start);
if (time_after_eq(fattr->time_start, nfsi->cache_change_attribute))
nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME|NFS_INO_REVAL_PAGECACHE);
nfsi->cache_change_attribute = jiffies;
status = nfs_update_inode(inode, fattr);
out:
spin_unlock(&inode->i_lock);
return status;
@ -1396,12 +1378,12 @@ int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr)
*
* A very similar scenario holds for the dir cache.
*/
static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsigned long verifier)
static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
{
struct nfs_inode *nfsi = NFS_I(inode);
loff_t cur_isize, new_isize;
unsigned int invalid = 0;
int data_unstable;
int data_stable;
dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n",
__FUNCTION__, inode->i_sb->s_id, inode->i_ino,
@ -1432,8 +1414,9 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
nfsi->last_updated = jiffies;
/* Are we racing with known updates of the metadata on the server? */
data_unstable = ! (nfs_verify_change_attribute(inode, verifier) ||
(nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE));
data_stable = nfs_verify_change_attribute(inode, fattr->time_start);
if (data_stable)
nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME);
/* Check if our cached file size is stale */
new_isize = nfs_size_to_loff_t(fattr->size);
@ -1442,7 +1425,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
/* Do we perhaps have any outstanding writes? */
if (nfsi->npages == 0) {
/* No, but did we race with nfs_end_data_update()? */
if (time_after_eq(verifier, nfsi->cache_change_attribute)) {
if (data_stable) {
inode->i_size = new_isize;
invalid |= NFS_INO_INVALID_DATA;
}
@ -1451,6 +1434,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
inode->i_size = new_isize;
invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
}
nfsi->cache_change_attribute = jiffies;
dprintk("NFS: isize change on server for file %s/%ld\n",
inode->i_sb->s_id, inode->i_ino);
}
@ -1460,8 +1444,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime));
dprintk("NFS: mtime change on server for file %s/%ld\n",
inode->i_sb->s_id, inode->i_ino);
if (!data_unstable)
invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA;
nfsi->cache_change_attribute = jiffies;
}
if ((fattr->valid & NFS_ATTR_FATTR_V4)
@ -1469,15 +1453,15 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
dprintk("NFS: change_attr change on server for file %s/%ld\n",
inode->i_sb->s_id, inode->i_ino);
nfsi->change_attr = fattr->change_attr;
if (!data_unstable)
invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
nfsi->cache_change_attribute = jiffies;
}
/* If ctime has changed we should definitely clear access+acl caches */
if (!timespec_equal(&inode->i_ctime, &fattr->ctime)) {
if (!data_unstable)
invalid |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
invalid |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime));
nfsi->cache_change_attribute = jiffies;
}
memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime));
@ -1515,6 +1499,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)
|| S_ISLNK(inode->i_mode)))
invalid &= ~NFS_INO_INVALID_DATA;
if (data_stable)
invalid &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME|NFS_INO_REVAL_PAGECACHE);
if (!nfs_have_delegation(inode, FMODE_READ))
nfsi->cache_validity |= invalid;
@ -2066,6 +2052,7 @@ static struct inode *nfs_alloc_inode(struct super_block *sb)
return NULL;
nfsi->flags = 0UL;
nfsi->cache_validity = 0UL;
nfsi->cache_change_attribute = jiffies;
#ifdef CONFIG_NFS_V3_ACL
nfsi->acl_access = ERR_PTR(-EAGAIN);
nfsi->acl_default = ERR_PTR(-EAGAIN);

11
fs/nfs/nfs4proc.c
View File

@ -1506,10 +1506,15 @@ static int _nfs4_proc_write(struct nfs_write_data *wdata)
dprintk("NFS call write %d @ %Ld\n", wdata->args.count,
(long long) wdata->args.offset);
wdata->args.bitmask = server->attr_bitmask;
wdata->res.server = server;
nfs_fattr_init(fattr);
status = rpc_call_sync(server->client, &msg, rpcflags);
dprintk("NFS reply write: %d\n", status);
return status;
if (status < 0)
return status;
nfs_post_op_update_inode(inode, fattr);
return wdata->res.count;
}
static int nfs4_proc_write(struct nfs_write_data *wdata)
@ -1540,9 +1545,13 @@ static int _nfs4_proc_commit(struct nfs_write_data *cdata)
dprintk("NFS call commit %d @ %Ld\n", cdata->args.count,
(long long) cdata->args.offset);
cdata->args.bitmask = server->attr_bitmask;
cdata->res.server = server;
nfs_fattr_init(fattr);
status = rpc_call_sync(server->client, &msg, 0);
dprintk("NFS reply commit: %d\n", status);
if (status >= 0)
nfs_post_op_update_inode(inode, fattr);
return status;
}

1
fs/nfs/proc.c
View File

@ -375,6 +375,7 @@ nfs_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
dprintk("NFS call link %s\n", name->name);
status = rpc_call(NFS_CLIENT(inode), NFSPROC_LINK, &arg, NULL, 0);
nfs_mark_for_revalidate(inode);
nfs_mark_for_revalidate(dir);
dprintk("NFS reply link: %d\n", status);
return status;

6
fs/nfs/write.c
View File

@ -189,6 +189,7 @@ static int nfs_writepage_sync(struct nfs_open_context *ctx, struct inode *inode,
(long long)NFS_FILEID(inode),
count, (long long)(page_offset(page) + offset));
set_page_writeback(page);
nfs_begin_data_update(inode);
do {
if (count < wsize)
@ -221,6 +222,7 @@ static int nfs_writepage_sync(struct nfs_open_context *ctx, struct inode *inode,
io_error:
nfs_end_data_update(inode);
end_page_writeback(page);
nfs_writedata_free(wdata);
return written ? written : result;
}
@ -929,7 +931,7 @@ static int nfs_flush_multi(struct list_head *head, struct inode *inode, int how)
atomic_set(&req->wb_complete, requests);
ClearPageError(page);
SetPageWriteback(page);
set_page_writeback(page);
offset = 0;
nbytes = req->wb_bytes;
do {
@ -992,7 +994,7 @@ static int nfs_flush_one(struct list_head *head, struct inode *inode, int how)
nfs_list_remove_request(req);
nfs_list_add_request(req, &data->pages);
ClearPageError(req->wb_page);
SetPageWriteback(req->wb_page);
set_page_writeback(req->wb_page);
*pages++ = req->wb_page;
count += req->wb_bytes;
}

2
mm/memory.c
View File

@ -1223,7 +1223,7 @@ int vm_insert_page(struct vm_area_struct *vma, unsigned long addr, struct page *
return -EINVAL;
return insert_page(vma->vm_mm, addr, page, vma->vm_page_prot);
}
EXPORT_SYMBOL_GPL(vm_insert_page);
EXPORT_SYMBOL(vm_insert_page);
/*
* Somebody does a pfn remapping that doesn't actually work as a vma.

16
mm/page_alloc.c
View File

@ -1772,16 +1772,16 @@ static int __devinit zone_batchsize(struct zone *zone)
batch = 1;
/*
* We will be trying to allcoate bigger chunks of contiguous
* memory of the order of fls(batch). This should result in
* better cache coloring.
* Clamp the batch to a 2^n - 1 value. Having a power
* of 2 value was found to be more likely to have
* suboptimal cache aliasing properties in some cases.
*
* A sanity check also to ensure that batch is still in limits.
* For example if 2 tasks are alternately allocating
* batches of pages, one task can end up with a lot
* of pages of one half of the possible page colors
* and the other with pages of the other colors.
*/
batch = (1 << fls(batch + batch/2));
if (fls(batch) >= (PAGE_SHIFT + MAX_ORDER - 2))
batch = PAGE_SHIFT + ((MAX_ORDER - 1 - PAGE_SHIFT)/2);
batch = (1 << (fls(batch + batch/2)-1)) - 1;
return batch;
}

7
net/ipv4/af_inet.c
View File

@ -228,13 +228,14 @@ static int inet_create(struct socket *sock, int protocol)
unsigned char answer_flags;
char answer_no_check;
int try_loading_module = 0;
int err = -ESOCKTNOSUPPORT;
int err;
sock->state = SS_UNCONNECTED;
/* Look for the requested type/protocol pair. */
answer = NULL;
lookup_protocol:
err = -ESOCKTNOSUPPORT;
rcu_read_lock();
list_for_each_rcu(p, &inetsw[sock->type]) {
answer = list_entry(p, struct inet_protosw, list);
@ -252,6 +253,7 @@ static int inet_create(struct socket *sock, int protocol)
if (IPPROTO_IP == answer->protocol)
break;
}
err = -EPROTONOSUPPORT;
answer = NULL;
}
@ -280,9 +282,6 @@ static int inet_create(struct socket *sock, int protocol)
err = -EPERM;
if (answer->capability > 0 && !capable(answer->capability))
goto out_rcu_unlock;
err = -EPROTONOSUPPORT;
if (!protocol)
goto out_rcu_unlock;
sock->ops = answer->ops;
answer_prot = answer->prot;

5
net/ipv4/igmp.c
View File

@ -897,7 +897,10 @@ int igmp_rcv(struct sk_buff *skb)
/* Is it our report looped back? */
if (((struct rtable*)skb->dst)->fl.iif == 0)
break;
igmp_heard_report(in_dev, ih->group);
/* don't rely on MC router hearing unicast reports */
if (skb->pkt_type == PACKET_MULTICAST ||
skb->pkt_type == PACKET_BROADCAST)
igmp_heard_report(in_dev, ih->group);
break;
case IGMP_PIM:
#ifdef CONFIG_IP_PIMSM_V1

47
net/ipv6/af_inet6.c
View File

@ -92,10 +92,13 @@ static int inet6_create(struct socket *sock, int protocol)
struct proto *answer_prot;
unsigned char answer_flags;
char answer_no_check;
int rc;
int try_loading_module = 0;
int err;
/* Look for the requested type/protocol pair. */
answer = NULL;
lookup_protocol:
err = -ESOCKTNOSUPPORT;
rcu_read_lock();
list_for_each_rcu(p, &inetsw6[sock->type]) {
answer = list_entry(p, struct inet_protosw, list);
@ -113,21 +116,37 @@ static int inet6_create(struct socket *sock, int protocol)
if (IPPROTO_IP == answer->protocol)
break;
}
err = -EPROTONOSUPPORT;
answer = NULL;
}
rc = -ESOCKTNOSUPPORT;
if (!answer)
goto out_rcu_unlock;
rc = -EPERM;
if (!answer) {
if (try_loading_module < 2) {
rcu_read_unlock();
/*
* Be more specific, e.g. net-pf-10-proto-132-type-1
* (net-pf-PF_INET6-proto-IPPROTO_SCTP-type-SOCK_STREAM)
*/
if (++try_loading_module == 1)
request_module("net-pf-%d-proto-%d-type-%d",
PF_INET6, protocol, sock->type);
/*
* Fall back to generic, e.g. net-pf-10-proto-132
* (net-pf-PF_INET6-proto-IPPROTO_SCTP)
*/
else
request_module("net-pf-%d-proto-%d",
PF_INET6, protocol);
goto lookup_protocol;
} else
goto out_rcu_unlock;
}
err = -EPERM;
if (answer->capability > 0 && !capable(answer->capability))
goto out_rcu_unlock;
rc = -EPROTONOSUPPORT;
if (!protocol)
goto out_rcu_unlock;
sock->ops = answer->ops;
answer_prot = answer->prot;
answer_no_check = answer->no_check;
answer_flags = answer->flags;
@ -135,14 +154,14 @@ static int inet6_create(struct socket *sock, int protocol)
BUG_TRAP(answer_prot->slab != NULL);
rc = -ENOBUFS;
err = -ENOBUFS;
sk = sk_alloc(PF_INET6, GFP_KERNEL, answer_prot, 1);
if (sk == NULL)
goto out;
sock_init_data(sock, sk);
rc = 0;
err = 0;
sk->sk_no_check = answer_no_check;
if (INET_PROTOSW_REUSE & answer_flags)
sk->sk_reuse = 1;
@ -202,14 +221,14 @@ static int inet6_create(struct socket *sock, int protocol)
sk->sk_prot->hash(sk);
}
if (sk->sk_prot->init) {
rc = sk->sk_prot->init(sk);
if (rc) {
err = sk->sk_prot->init(sk);
if (err) {
sk_common_release(sk);
goto out;
}
}
out:
return rc;
return err;
out_rcu_unlock:
rcu_read_unlock();
goto out;

5
net/ipv6/mcast.c
View File

@ -1231,6 +1231,11 @@ int igmp6_event_report(struct sk_buff *skb)
if (skb->pkt_type == PACKET_LOOPBACK)
return 0;
/* send our report if the MC router may not have heard this report */
if (skb->pkt_type != PACKET_MULTICAST &&
skb->pkt_type != PACKET_BROADCAST)
return 0;
if (!pskb_may_pull(skb, sizeof(struct in6_addr)))
return -EINVAL;

10
net/sctp/socket.c
View File

@ -4743,11 +4743,6 @@ static struct sk_buff *sctp_skb_recv_datagram(struct sock *sk, int flags,
struct sk_buff *skb;
long timeo;
/* Caller is allowed not to check sk->sk_err before calling. */
error = sock_error(sk);
if (error)
goto no_packet;
timeo = sock_rcvtimeo(sk, noblock);
SCTP_DEBUG_PRINTK("Timeout: timeo: %ld, MAX: %ld.\n",
@ -4774,6 +4769,11 @@ static struct sk_buff *sctp_skb_recv_datagram(struct sock *sk, int flags,
if (skb)
return skb;
/* Caller is allowed not to check sk->sk_err before calling. */
error = sock_error(sk);
if (error)
goto no_packet;
if (sk->sk_shutdown & RCV_SHUTDOWN)
break;

3
net/sctp/transport.c
View File

@ -261,7 +261,8 @@ void sctp_transport_route(struct sctp_transport *transport,
* association's active path for getsockname().
*/
if (asoc && (transport == asoc->peer.active_path))
af->to_sk_saddr(&transport->saddr, asoc->base.sk);
opt->pf->af->to_sk_saddr(&transport->saddr,
asoc->base.sk);
} else
transport->pmtu = SCTP_DEFAULT_MAXSEGMENT;
}

2
net/sunrpc/rpc_pipe.c
View File

@ -59,7 +59,6 @@ __rpc_purge_upcall(struct inode *inode, int err)
struct rpc_inode *rpci = RPC_I(inode);
__rpc_purge_list(rpci, &rpci->pipe, err);
__rpc_purge_list(rpci, &rpci->in_upcall, err);
rpci->pipelen = 0;
wake_up(&rpci->waitq);
}
@ -119,6 +118,7 @@ rpc_close_pipes(struct inode *inode)
down(&inode->i_sem);
if (rpci->ops != NULL) {
rpci->nreaders = 0;
__rpc_purge_list(rpci, &rpci->in_upcall, -EPIPE);
__rpc_purge_upcall(inode, -EPIPE);
rpci->nwriters = 0;
if (rpci->ops->release_pipe)