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提交 26abd53d 编写于 作者: T Tony Luck
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Documentation/DocBook/libata.tmpl
浏览文件 @ 26abd53d
......@@ -14,7 +14,7 @@
</authorgroup>
<copyright>
<year>2003</year>
<year>2003-2005</year>
<holder>Jeff Garzik</holder>
</copyright>
......@@ -44,30 +44,38 @@
<toc></toc>
<chapter id="libataThanks">
<title>Thanks</title>
<chapter id="libataIntroduction">
<title>Introduction</title>
<para>
The bulk of the ATA knowledge comes thanks to long conversations with
Andre Hedrick (www.linux-ide.org).
libATA is a library used inside the Linux kernel to support ATA host
controllers and devices. libATA provides an ATA driver API, class
transports for ATA and ATAPI devices, and SCSI&lt;-&gt;ATA translation
for ATA devices according to the T10 SAT specification.
</para>
<para>
Thanks to Alan Cox for pointing out similarities
between SATA and SCSI, and in general for motivation to hack on
libata.
</para>
<para>
libata's device detection
method, ata_pio_devchk, and in general all the early probing was
based on extensive study of Hale Landis's probe/reset code in his
ATADRVR driver (www.ata-atapi.com).
This Guide documents the libATA driver API, library functions, library
internals, and a couple sample ATA low-level drivers.
</para>
</chapter>
<chapter id="libataDriverApi">
<title>libata Driver API</title>
<para>
struct ata_port_operations is defined for every low-level libata
hardware driver, and it controls how the low-level driver
interfaces with the ATA and SCSI layers.
</para>
<para>
FIS-based drivers will hook into the system with ->qc_prep() and
->qc_issue() high-level hooks. Hardware which behaves in a manner
similar to PCI IDE hardware may utilize several generic helpers,
defining at a bare minimum the bus I/O addresses of the ATA shadow
register blocks.
</para>
<sect1>
<title>struct ata_port_operations</title>
<sect2><title>Disable ATA port</title>
<programlisting>
void (*port_disable) (struct ata_port *);
</programlisting>
......@@ -78,6 +86,9 @@ void (*port_disable) (struct ata_port *);
unplug).
</para>
</sect2>
<sect2><title>Post-IDENTIFY device configuration</title>
<programlisting>
void (*dev_config) (struct ata_port *, struct ata_device *);
</programlisting>
......@@ -88,6 +99,9 @@ void (*dev_config) (struct ata_port *, struct ata_device *);
issue of SET FEATURES - XFER MODE, and prior to operation.
</para>
</sect2>
<sect2><title>Set PIO/DMA mode</title>
<programlisting>
void (*set_piomode) (struct ata_port *, struct ata_device *);
void (*set_dmamode) (struct ata_port *, struct ata_device *);
......@@ -108,6 +122,9 @@ void (*post_set_mode) (struct ata_port *ap);
->set_dma_mode() is only called if DMA is possible.
</para>
</sect2>
<sect2><title>Taskfile read/write</title>
<programlisting>
void (*tf_load) (struct ata_port *ap, struct ata_taskfile *tf);
void (*tf_read) (struct ata_port *ap, struct ata_taskfile *tf);
......@@ -120,6 +137,9 @@ void (*tf_read) (struct ata_port *ap, struct ata_taskfile *tf);
taskfile register values.
</para>
</sect2>
<sect2><title>ATA command execute</title>
<programlisting>
void (*exec_command)(struct ata_port *ap, struct ata_taskfile *tf);
</programlisting>
......@@ -129,17 +149,37 @@ void (*exec_command)(struct ata_port *ap, struct ata_taskfile *tf);
->tf_load(), to be initiated in hardware.
</para>
</sect2>
<sect2><title>Per-cmd ATAPI DMA capabilities filter</title>
<programlisting>
int (*check_atapi_dma) (struct ata_queued_cmd *qc);
</programlisting>
<para>
Allow low-level driver to filter ATA PACKET commands, returning a status
indicating whether or not it is OK to use DMA for the supplied PACKET
command.
</para>
</sect2>
<sect2><title>Read specific ATA shadow registers</title>
<programlisting>
u8 (*check_status)(struct ata_port *ap);
void (*dev_select)(struct ata_port *ap, unsigned int device);
u8 (*check_altstatus)(struct ata_port *ap);
u8 (*check_err)(struct ata_port *ap);
</programlisting>
<para>
Reads the Status ATA shadow register from hardware. On some
hardware, this has the side effect of clearing the interrupt
condition.
Reads the Status/AltStatus/Error ATA shadow register from
hardware. On some hardware, reading the Status register has
the side effect of clearing the interrupt condition.
</para>
</sect2>
<sect2><title>Select ATA device on bus</title>
<programlisting>
void (*dev_select)(struct ata_port *ap, unsigned int device);
</programlisting>
......@@ -147,9 +187,13 @@ void (*dev_select)(struct ata_port *ap, unsigned int device);
<para>
Issues the low-level hardware command(s) that causes one of N
hardware devices to be considered 'selected' (active and
available for use) on the ATA bus.
available for use) on the ATA bus. This generally has no
meaning on FIS-based devices.
</para>
</sect2>
<sect2><title>Reset ATA bus</title>
<programlisting>
void (*phy_reset) (struct ata_port *ap);
</programlisting>
......@@ -162,17 +206,31 @@ void (*phy_reset) (struct ata_port *ap);
functions ata_bus_reset() or sata_phy_reset() for this hook.
</para>
</sect2>
<sect2><title>Control PCI IDE BMDMA engine</title>
<programlisting>
void (*bmdma_setup) (struct ata_queued_cmd *qc);
void (*bmdma_start) (struct ata_queued_cmd *qc);
void (*bmdma_stop) (struct ata_port *ap);
u8 (*bmdma_status) (struct ata_port *ap);
</programlisting>
<para>
When setting up an IDE BMDMA transaction, these hooks arm
(->bmdma_setup) and fire (->bmdma_start) the hardware's DMA
engine.
When setting up an IDE BMDMA transaction, these hooks arm
(->bmdma_setup), fire (->bmdma_start), and halt (->bmdma_stop)
the hardware's DMA engine. ->bmdma_status is used to read the standard
PCI IDE DMA Status register.
</para>
<para>
These hooks are typically either no-ops, or simply not implemented, in
FIS-based drivers.
</para>
</sect2>
<sect2><title>High-level taskfile hooks</title>
<programlisting>
void (*qc_prep) (struct ata_queued_cmd *qc);
int (*qc_issue) (struct ata_queued_cmd *qc);
......@@ -190,20 +248,26 @@ int (*qc_issue) (struct ata_queued_cmd *qc);
->qc_issue is used to make a command active, once the hardware
and S/G tables have been prepared. IDE BMDMA drivers use the
helper function ata_qc_issue_prot() for taskfile protocol-based
dispatch. More advanced drivers roll their own ->qc_issue
implementation, using this as the "issue new ATA command to
hardware" hook.
dispatch. More advanced drivers implement their own ->qc_issue.
</para>
</sect2>
<sect2><title>Timeout (error) handling</title>
<programlisting>
void (*eng_timeout) (struct ata_port *ap);
</programlisting>
<para>
This is a high level error handling function, called from the
error handling thread, when a command times out.
This is a high level error handling function, called from the
error handling thread, when a command times out. Most newer
hardware will implement its own error handling code here. IDE BMDMA
drivers may use the helper function ata_eng_timeout().
</para>
</sect2>
<sect2><title>Hardware interrupt handling</title>
<programlisting>
irqreturn_t (*irq_handler)(int, void *, struct pt_regs *);
void (*irq_clear) (struct ata_port *);
......@@ -216,6 +280,9 @@ void (*irq_clear) (struct ata_port *);
is quiet.
</para>
</sect2>
<sect2><title>SATA phy read/write</title>
<programlisting>
u32 (*scr_read) (struct ata_port *ap, unsigned int sc_reg);
void (*scr_write) (struct ata_port *ap, unsigned int sc_reg,
......@@ -227,6 +294,9 @@ void (*scr_write) (struct ata_port *ap, unsigned int sc_reg,
if ->phy_reset hook called the sata_phy_reset() helper function.
</para>
</sect2>
<sect2><title>Init and shutdown</title>
<programlisting>
int (*port_start) (struct ata_port *ap);
void (*port_stop) (struct ata_port *ap);
......@@ -240,15 +310,17 @@ void (*host_stop) (struct ata_host_set *host_set);
tasks.
</para>
<para>
->host_stop() is called when the rmmod or hot unplug process
begins. The hook must stop all hardware interrupts, DMA
engines, etc.
</para>
<para>
->port_stop() is called after ->host_stop(). It's sole function
is to release DMA/memory resources, now that they are no longer
actively being used.
</para>
<para>
->host_stop() is called after all ->port_stop() calls
have completed. The hook must finalize hardware shutdown, release DMA
and other resources, etc.
</para>
</sect2>
</sect1>
</chapter>
......@@ -279,4 +351,24 @@ void (*host_stop) (struct ata_host_set *host_set);
!Idrivers/scsi/sata_sil.c
</chapter>
<chapter id="libataThanks">
<title>Thanks</title>
<para>
The bulk of the ATA knowledge comes thanks to long conversations with
Andre Hedrick (www.linux-ide.org), and long hours pondering the ATA
and SCSI specifications.
</para>
<para>
Thanks to Alan Cox for pointing out similarities
between SATA and SCSI, and in general for motivation to hack on
libata.
</para>
<para>
libata's device detection
method, ata_pio_devchk, and in general all the early probing was
based on extensive study of Hale Landis's probe/reset code in his
ATADRVR driver (www.ata-atapi.com).
</para>
</chapter>
</book>
Makefile
浏览文件 @ 26abd53d
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 12
EXTRAVERSION =-rc5
EXTRAVERSION =-rc6
NAME=Woozy Numbat
# *DOCUMENTATION*
......
arch/m68knommu/kernel/process.c
浏览文件 @ 26abd53d
......@@ -45,11 +45,13 @@ asmlinkage void ret_from_fork(void);
*/
void default_idle(void)
{
while(1) {
if (need_resched())
__asm__("stop #0x2000" : : : "cc");
schedule();
local_irq_disable();
while (!need_resched()) {
/* This stop will re-enable interrupts */
__asm__("stop #0x2000" : : : "cc");
local_irq_disable();
}
local_irq_enable();
}
void (*idle)(void) = default_idle;
......@@ -63,7 +65,12 @@ void (*idle)(void) = default_idle;
void cpu_idle(void)
{
/* endless idle loop with no priority at all */
idle();
while (1) {
idle();
preempt_enable_no_resched();
schedule();
preempt_disable();
}
}
void machine_restart(char * __unused)
......
arch/ppc/kernel/misc.S
浏览文件 @ 26abd53d
......@@ -619,7 +619,7 @@ _GLOBAL(flush_instruction_cache)
_GLOBAL(flush_icache_range)
BEGIN_FTR_SECTION
blr /* for 601, do nothing */
END_FTR_SECTION_IFSET(PPC_FEATURE_UNIFIED_CACHE)
END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
li r5,L1_CACHE_LINE_SIZE-1
andc r3,r3,r5
subf r4,r3,r4
......@@ -736,7 +736,7 @@ _GLOBAL(flush_dcache_all)
_GLOBAL(__flush_dcache_icache)
BEGIN_FTR_SECTION
blr /* for 601, do nothing */
END_FTR_SECTION_IFSET(PPC_FEATURE_UNIFIED_CACHE)
END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
rlwinm r3,r3,0,0,19 /* Get page base address */
li r4,4096/L1_CACHE_LINE_SIZE /* Number of lines in a page */
mtctr r4
......@@ -764,7 +764,7 @@ END_FTR_SECTION_IFSET(PPC_FEATURE_UNIFIED_CACHE)
_GLOBAL(__flush_dcache_icache_phys)
BEGIN_FTR_SECTION
blr /* for 601, do nothing */
END_FTR_SECTION_IFSET(PPC_FEATURE_UNIFIED_CACHE)
END_FTR_SECTION_IFCLR(CPU_FTR_SPLIT_ID_CACHE)
mfmsr r10
rlwinm r0,r10,0,28,26 /* clear DR */
mtmsr r0
......
arch/ppc64/kernel/prom_init.c
浏览文件 @ 26abd53d
......@@ -1370,7 +1370,7 @@ static int __init prom_find_machine_type(void)
}
/* Default to pSeries. We need to know if we are running LPAR */
rtas = call_prom("finddevice", 1, 1, ADDR("/rtas"));
if (!PHANDLE_VALID(rtas)) {
if (PHANDLE_VALID(rtas)) {
int x = prom_getproplen(rtas, "ibm,hypertas-functions");
if (x != PROM_ERROR) {
prom_printf("Hypertas detected, assuming LPAR !\n");
......
arch/s390/appldata/appldata_base.c
浏览文件 @ 26abd53d
......@@ -28,6 +28,7 @@
//#include <linux/kernel_stat.h>
#include <linux/notifier.h>
#include <linux/cpu.h>
#include <linux/workqueue.h>
#include "appldata.h"
......@@ -133,9 +134,12 @@ static int appldata_interval = APPLDATA_CPU_INTERVAL;
static int appldata_timer_active;
/*
* Tasklet
* Work queue
*/
static struct tasklet_struct appldata_tasklet_struct;
static struct workqueue_struct *appldata_wq;
static void appldata_work_fn(void *data);
static DECLARE_WORK(appldata_work, appldata_work_fn, NULL);
/*
* Ops list
......@@ -144,11 +148,11 @@ static DEFINE_SPINLOCK(appldata_ops_lock);
static LIST_HEAD(appldata_ops_list);
/************************* timer, tasklet, DIAG ******************************/
/*************************** timer, work, DIAG *******************************/
/*
* appldata_timer_function()
*
* schedule tasklet and reschedule timer
* schedule work and reschedule timer
*/
static void appldata_timer_function(unsigned long data, struct pt_regs *regs)
{
......@@ -157,22 +161,22 @@ static void appldata_timer_function(unsigned long data, struct pt_regs *regs)
atomic_read(&appldata_expire_count));
if (atomic_dec_and_test(&appldata_expire_count)) {
atomic_set(&appldata_expire_count, num_online_cpus());
tasklet_schedule((struct tasklet_struct *) data);
queue_work(appldata_wq, (struct work_struct *) data);
}
}
/*
* appldata_tasklet_function()
* appldata_work_fn()
*
* call data gathering function for each (active) module
*/
static void appldata_tasklet_function(unsigned long data)
static void appldata_work_fn(void *data)
{
struct list_head *lh;
struct appldata_ops *ops;
int i;
P_DEBUG(" -= Tasklet =-\n");
P_DEBUG(" -= Work Queue =-\n");
i = 0;
spin_lock(&appldata_ops_lock);
list_for_each(lh, &appldata_ops_list) {
......@@ -231,7 +235,7 @@ static int appldata_diag(char record_nr, u16 function, unsigned long buffer,
: "=d" (ry) : "d" (&(appldata_parameter_list)) : "cc");
return (int) ry;
}
/********************** timer, tasklet, DIAG <END> ***************************/
/************************ timer, work, DIAG <END> ****************************/
/****************************** /proc stuff **********************************/
......@@ -411,7 +415,7 @@ appldata_generic_handler(ctl_table *ctl, int write, struct file *filp,
struct list_head *lh;
found = 0;
spin_lock_bh(&appldata_ops_lock);
spin_lock(&appldata_ops_lock);
list_for_each(lh, &appldata_ops_list) {
tmp_ops = list_entry(lh, struct appldata_ops, list);
if (&tmp_ops->ctl_table[2] == ctl) {
......@@ -419,15 +423,15 @@ appldata_generic_handler(ctl_table *ctl, int write, struct file *filp,
}
}
if (!found) {
spin_unlock_bh(&appldata_ops_lock);
spin_unlock(&appldata_ops_lock);
return -ENODEV;
}
ops = ctl->data;
if (!try_module_get(ops->owner)) { // protect this function
spin_unlock_bh(&appldata_ops_lock);
spin_unlock(&appldata_ops_lock);
return -ENODEV;
}
spin_unlock_bh(&appldata_ops_lock);
spin_unlock(&appldata_ops_lock);
if (!*lenp || *ppos) {
*lenp = 0;
......@@ -451,10 +455,11 @@ appldata_generic_handler(ctl_table *ctl, int write, struct file *filp,
return -EFAULT;
}
spin_lock_bh(&appldata_ops_lock);
spin_lock(&appldata_ops_lock);
if ((buf[0] == '1') && (ops->active == 0)) {
if (!try_module_get(ops->owner)) { // protect tasklet
spin_unlock_bh(&appldata_ops_lock);
// protect work queue callback
if (!try_module_get(ops->owner)) {
spin_unlock(&appldata_ops_lock);
module_put(ops->owner);
return -ENODEV;
}
......@@ -485,7 +490,7 @@ appldata_generic_handler(ctl_table *ctl, int write, struct file *filp,
}
module_put(ops->owner);
}
spin_unlock_bh(&appldata_ops_lock);
spin_unlock(&appldata_ops_lock);
out:
*lenp = len;
*ppos += len;
......@@ -529,7 +534,7 @@ int appldata_register_ops(struct appldata_ops *ops)
}
memset(ops->ctl_table, 0, 4*sizeof(struct ctl_table));
spin_lock_bh(&appldata_ops_lock);
spin_lock(&appldata_ops_lock);
list_for_each(lh, &appldata_ops_list) {
tmp_ops = list_entry(lh, struct appldata_ops, list);
P_DEBUG("register_ops loop: %i) name = %s, ctl = %i\n",
......@@ -541,18 +546,18 @@ int appldata_register_ops(struct appldata_ops *ops)
APPLDATA_PROC_NAME_LENGTH) == 0) {
P_ERROR("Name \"%s\" already registered!\n", ops->name);
kfree(ops->ctl_table);
spin_unlock_bh(&appldata_ops_lock);
spin_unlock(&appldata_ops_lock);
return -EBUSY;
}
if (tmp_ops->ctl_nr == ops->ctl_nr) {
P_ERROR("ctl_nr %i already registered!\n", ops->ctl_nr);
kfree(ops->ctl_table);
spin_unlock_bh(&appldata_ops_lock);
spin_unlock(&appldata_ops_lock);
return -EBUSY;
}
}
list_add(&ops->list, &appldata_ops_list);
spin_unlock_bh(&appldata_ops_lock);
spin_unlock(&appldata_ops_lock);
ops->ctl_table[0].ctl_name = CTL_APPLDATA;
ops->ctl_table[0].procname = appldata_proc_name;
......@@ -583,12 +588,12 @@ int appldata_register_ops(struct appldata_ops *ops)
*/
void appldata_unregister_ops(struct appldata_ops *ops)
{
spin_lock_bh(&appldata_ops_lock);
spin_lock(&appldata_ops_lock);
unregister_sysctl_table(ops->sysctl_header);
list_del(&ops->list);
kfree(ops->ctl_table);
ops->ctl_table = NULL;
spin_unlock_bh(&appldata_ops_lock);
spin_unlock(&appldata_ops_lock);
P_INFO("%s-ops unregistered!\n", ops->name);
}
/********************** module-ops management <END> **************************/
......@@ -602,7 +607,7 @@ appldata_online_cpu(int cpu)
init_virt_timer(&per_cpu(appldata_timer, cpu));
per_cpu(appldata_timer, cpu).function = appldata_timer_function;
per_cpu(appldata_timer, cpu).data = (unsigned long)
&appldata_tasklet_struct;
&appldata_work;
atomic_inc(&appldata_expire_count);
spin_lock(&appldata_timer_lock);
__appldata_vtimer_setup(APPLDATA_MOD_TIMER);
......@@ -615,7 +620,7 @@ appldata_offline_cpu(int cpu)
del_virt_timer(&per_cpu(appldata_timer, cpu));
if (atomic_dec_and_test(&appldata_expire_count)) {
atomic_set(&appldata_expire_count, num_online_cpus());
tasklet_schedule(&appldata_tasklet_struct);
queue_work(appldata_wq, &appldata_work);
}
spin_lock(&appldata_timer_lock);
__appldata_vtimer_setup(APPLDATA_MOD_TIMER);
......@@ -648,7 +653,7 @@ static struct notifier_block __devinitdata appldata_nb = {
/*
* appldata_init()
*
* init timer and tasklet, register /proc entries
* init timer, register /proc entries
*/
static int __init appldata_init(void)
{
......@@ -657,6 +662,12 @@ static int __init appldata_init(void)
P_DEBUG("sizeof(parameter_list) = %lu\n",
sizeof(struct appldata_parameter_list));
appldata_wq = create_singlethread_workqueue("appldata");
if (!appldata_wq) {
P_ERROR("Could not create work queue\n");
return -ENOMEM;
}
for_each_online_cpu(i)
appldata_online_cpu(i);
......@@ -670,7 +681,6 @@ static int __init appldata_init(void)
appldata_table[1].de->owner = THIS_MODULE;
#endif
tasklet_init(&appldata_tasklet_struct, appldata_tasklet_function, 0);
P_DEBUG("Base interface initialized.\n");
return 0;
}
......@@ -678,7 +688,7 @@ static int __init appldata_init(void)
/*
* appldata_exit()
*
* stop timer and tasklet, unregister /proc entries
* stop timer, unregister /proc entries
*/
static void __exit appldata_exit(void)
{
......@@ -690,7 +700,7 @@ static void __exit appldata_exit(void)
/*
* ops list should be empty, but just in case something went wrong...
*/
spin_lock_bh(&appldata_ops_lock);
spin_lock(&appldata_ops_lock);
list_for_each(lh, &appldata_ops_list) {
ops = list_entry(lh, struct appldata_ops, list);
rc = appldata_diag(ops->record_nr, APPLDATA_STOP_REC,
......@@ -700,7 +710,7 @@ static void __exit appldata_exit(void)
"return code: %d\n", ops->name, rc);
}
}
spin_unlock_bh(&appldata_ops_lock);
spin_unlock(&appldata_ops_lock);
for_each_online_cpu(i)
appldata_offline_cpu(i);
......@@ -709,7 +719,7 @@ static void __exit appldata_exit(void)
unregister_sysctl_table(appldata_sysctl_header);
tasklet_kill(&appldata_tasklet_struct);
destroy_workqueue(appldata_wq);
P_DEBUG("... module unloaded!\n");
}
/**************************** init / exit <END> ******************************/
......
arch/s390/appldata/appldata_mem.c
浏览文件 @ 26abd53d
......@@ -68,7 +68,7 @@ struct appldata_mem_data {
u64 pgmajfault; /* page faults (major only) */
// <-- New in 2.6
} appldata_mem_data;
} __attribute__((packed)) appldata_mem_data;
static inline void appldata_debug_print(struct appldata_mem_data *mem_data)
......
arch/s390/appldata/appldata_net_sum.c
浏览文件 @ 26abd53d
......@@ -57,7 +57,7 @@ struct appldata_net_sum_data {
u64 rx_dropped; /* no space in linux buffers */
u64 tx_dropped; /* no space available in linux */
u64 collisions; /* collisions while transmitting */
} appldata_net_sum_data;
} __attribute__((packed)) appldata_net_sum_data;
static inline void appldata_print_debug(struct appldata_net_sum_data *net_data)
......
arch/s390/appldata/appldata_os.c
浏览文件 @ 26abd53d
......@@ -49,7 +49,7 @@ struct appldata_os_per_cpu {
u32 per_cpu_softirq; /* ... spent in softirqs */
u32 per_cpu_iowait; /* ... spent while waiting for I/O */
// <-- New in 2.6
};
} __attribute__((packed));
struct appldata_os_data {
u64 timestamp;
......@@ -75,7 +75,7 @@ struct appldata_os_data {
/* per cpu data */
struct appldata_os_per_cpu os_cpu[0];
};
} __attribute__((packed));
static struct appldata_os_data *appldata_os_data;
......
arch/s390/kernel/ptrace.c
浏览文件 @ 26abd53d
......@@ -40,6 +40,7 @@
#include <asm/pgalloc.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
#ifdef CONFIG_S390_SUPPORT
#include "compat_ptrace.h"
......@@ -130,13 +131,19 @@ static int
peek_user(struct task_struct *child, addr_t addr, addr_t data)
{
struct user *dummy = NULL;
addr_t offset, tmp;
addr_t offset, tmp, mask;
/*
* Stupid gdb peeks/pokes the access registers in 64 bit with
* an alignment of 4. Programmers from hell...
*/
if ((addr & 3) || addr > sizeof(struct user) - __ADDR_MASK)
mask = __ADDR_MASK;
#ifdef CONFIG_ARCH_S390X
if (addr >= (addr_t) &dummy->regs.acrs &&
addr < (addr_t) &dummy->regs.orig_gpr2)
mask = 3;
#endif
if ((addr & mask) || addr > sizeof(struct user) - __ADDR_MASK)
return -EIO;
if (addr < (addr_t) &dummy->regs.acrs) {
......@@ -153,6 +160,16 @@ peek_user(struct task_struct *child, addr_t addr, addr_t data)
* access registers are stored in the thread structure
*/
offset = addr - (addr_t) &dummy->regs.acrs;
#ifdef CONFIG_ARCH_S390X
/*
* Very special case: old & broken 64 bit gdb reading
* from acrs[15]. Result is a 64 bit value. Read the
* 32 bit acrs[15] value and shift it by 32. Sick...
*/
if (addr == (addr_t) &dummy->regs.acrs[15])
tmp = ((unsigned long) child->thread.acrs[15]) << 32;
else
#endif
tmp = *(addr_t *)((addr_t) &child->thread.acrs + offset);
} else if (addr == (addr_t) &dummy->regs.orig_gpr2) {
......@@ -167,6 +184,9 @@ peek_user(struct task_struct *child, addr_t addr, addr_t data)
*/
offset = addr - (addr_t) &dummy->regs.fp_regs;
tmp = *(addr_t *)((addr_t) &child->thread.fp_regs + offset);
if (addr == (addr_t) &dummy->regs.fp_regs.fpc)
tmp &= (unsigned long) FPC_VALID_MASK
<< (BITS_PER_LONG - 32);
} else if (addr < (addr_t) (&dummy->regs.per_info + 1)) {
/*
......@@ -191,13 +211,19 @@ static int
poke_user(struct task_struct *child, addr_t addr, addr_t data)
{
struct user *dummy = NULL;
addr_t offset;
addr_t offset, mask;
/*
* Stupid gdb peeks/pokes the access registers in 64 bit with
* an alignment of 4. Programmers from hell indeed...
*/
if ((addr & 3) || addr > sizeof(struct user) - __ADDR_MASK)
mask = __ADDR_MASK;
#ifdef CONFIG_ARCH_S390X
if (addr >= (addr_t) &dummy->regs.acrs &&
addr < (addr_t) &dummy->regs.orig_gpr2)
mask = 3;
#endif
if ((addr & mask) || addr > sizeof(struct user) - __ADDR_MASK)
return -EIO;
if (addr < (addr_t) &dummy->regs.acrs) {
......@@ -224,6 +250,17 @@ poke_user(struct task_struct *child, addr_t addr, addr_t data)
* access registers are stored in the thread structure
*/
offset = addr - (addr_t) &dummy->regs.acrs;
#ifdef CONFIG_ARCH_S390X
/*
* Very special case: old & broken 64 bit gdb writing
* to acrs[15] with a 64 bit value. Ignore the lower
* half of the value and write the upper 32 bit to
* acrs[15]. Sick...
*/
if (addr == (addr_t) &dummy->regs.acrs[15])
child->thread.acrs[15] = (unsigned int) (data >> 32);
else
#endif
*(addr_t *)((addr_t) &child->thread.acrs + offset) = data;
} else if (addr == (addr_t) &dummy->regs.orig_gpr2) {
......@@ -237,7 +274,8 @@ poke_user(struct task_struct *child, addr_t addr, addr_t data)
* floating point regs. are stored in the thread structure
*/
if (addr == (addr_t) &dummy->regs.fp_regs.fpc &&
(data & ~FPC_VALID_MASK) != 0)
(data & ~((unsigned long) FPC_VALID_MASK
<< (BITS_PER_LONG - 32))) != 0)
return -EINVAL;
offset = addr - (addr_t) &dummy->regs.fp_regs;
*(addr_t *)((addr_t) &child->thread.fp_regs + offset) = data;
......@@ -722,6 +760,13 @@ syscall_trace(struct pt_regs *regs, int entryexit)
ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
? 0x80 : 0));
/*
* If the debuffer has set an invalid system call number,
* we prepare to skip the system call restart handling.
*/
if (!entryexit && regs->gprs[2] >= NR_syscalls)
regs->trap = -1;
/*
* this isn't the same as continuing with a signal, but it will do
* for normal use. strace only continues with a signal if the
......
arch/s390/mm/fault.c
浏览文件 @ 26abd53d
......@@ -207,7 +207,7 @@ do_exception(struct pt_regs *regs, unsigned long error_code, int is_protection)
* we are not in an interrupt and that there is a
* user context.
*/
if (user_address == 0 || in_interrupt() || !mm)
if (user_address == 0 || in_atomic() || !mm)
goto no_context;
/*
......
drivers/atm/Makefile
浏览文件 @ 26abd53d
......@@ -39,7 +39,8 @@ ifeq ($(CONFIG_ATM_FORE200E_PCA),y)
fore_200e-objs += fore200e_pca_fw.o
# guess the target endianess to choose the right PCA-200E firmware image
ifeq ($(CONFIG_ATM_FORE200E_PCA_DEFAULT_FW),y)
CONFIG_ATM_FORE200E_PCA_FW = $(shell if test -n "`$(CC) -E -dM $(src)/../../include/asm/byteorder.h | grep ' __LITTLE_ENDIAN '`"; then echo $(obj)/pca200e.bin; else echo $(obj)/pca200e_ecd.bin2; fi)
byteorder.h := include$(if $(patsubst $(srctree),,$(objtree)),2)/asm/byteorder.h
CONFIG_ATM_FORE200E_PCA_FW := $(obj)/pca200e$(if $(shell $(CC) -E -dM $(byteorder.h) | grep ' __LITTLE_ENDIAN '),.bin,_ecd.bin2)
endif
endif
......
drivers/atm/fore200e.c
浏览文件 @ 26abd53d
......@@ -383,8 +383,7 @@ fore200e_shutdown(struct fore200e* fore200e)
switch(fore200e->state) {
case FORE200E_STATE_COMPLETE:
if (fore200e->stats)
kfree(fore200e->stats);
kfree(fore200e->stats);
case FORE200E_STATE_IRQ:
free_irq(fore200e->irq, fore200e->atm_dev);
......@@ -963,8 +962,7 @@ fore200e_tx_irq(struct fore200e* fore200e)
entry, txq->tail, entry->vc_map, entry->skb);
/* free copy of misaligned data */
if (entry->data)
kfree(entry->data);
kfree(entry->data);
/* remove DMA mapping */
fore200e->bus->dma_unmap(fore200e, entry->tpd->tsd[ 0 ].buffer, entry->tpd->tsd[ 0 ].length,
......
drivers/atm/he.c
浏览文件 @ 26abd53d
......@@ -412,8 +412,7 @@ he_init_one(struct pci_dev *pci_dev, const struct pci_device_id *pci_ent)
init_one_failure:
if (atm_dev)
atm_dev_deregister(atm_dev);
if (he_dev)
kfree(he_dev);
kfree(he_dev);
pci_disable_device(pci_dev);
return err;
}
......@@ -2534,8 +2533,7 @@ he_open(struct atm_vcc *vcc)
open_failed:
if (err) {
if (he_vcc)
kfree(he_vcc);
kfree(he_vcc);
clear_bit(ATM_VF_ADDR, &vcc->flags);
}
else
......
drivers/atm/nicstar.c
浏览文件 @ 26abd53d
......@@ -676,10 +676,10 @@ static int __devinit ns_init_card(int i, struct pci_dev *pcidev)
PRINTK("nicstar%d: RSQ base at 0x%x.\n", i, (u32) card->rsq.base);
/* Initialize SCQ0, the only VBR SCQ used */
card->scq1 = (scq_info *) NULL;
card->scq2 = (scq_info *) NULL;
card->scq1 = NULL;
card->scq2 = NULL;
card->scq0 = get_scq(VBR_SCQSIZE, NS_VRSCD0);
if (card->scq0 == (scq_info *) NULL)
if (card->scq0 == NULL)
{
printk("nicstar%d: can't get SCQ0.\n", i);
error = 12;
......@@ -993,24 +993,24 @@ static scq_info *get_scq(int size, u32 scd)
int i;
if (size != VBR_SCQSIZE && size != CBR_SCQSIZE)
return (scq_info *) NULL;
return NULL;
scq = (scq_info *) kmalloc(sizeof(scq_info), GFP_KERNEL);
if (scq == (scq_info *) NULL)
return (scq_info *) NULL;
if (scq == NULL)
return NULL;
scq->org = kmalloc(2 * size, GFP_KERNEL);
if (scq->org == NULL)
{
kfree(scq);
return (scq_info *) NULL;
return NULL;
}
scq->skb = (struct sk_buff **) kmalloc(sizeof(struct sk_buff *) *
(size / NS_SCQE_SIZE), GFP_KERNEL);
if (scq->skb == (struct sk_buff **) NULL)
if (scq->skb == NULL)
{
kfree(scq->org);
kfree(scq);
return (scq_info *) NULL;
return NULL;
}
scq->num_entries = size / NS_SCQE_SIZE;
scq->base = (ns_scqe *) ALIGN_ADDRESS(scq->org, size);
......@@ -1498,7 +1498,7 @@ static int ns_open(struct atm_vcc *vcc)
vc->cbr_scd = NS_FRSCD + frscdi * NS_FRSCD_SIZE;
scq = get_scq(CBR_SCQSIZE, vc->cbr_scd);
if (scq == (scq_info *) NULL)
if (scq == NULL)
{
PRINTK("nicstar%d: can't get fixed rate SCQ.\n", card->index);
card->scd2vc[frscdi] = NULL;
......
drivers/atm/zatm.c
浏览文件 @ 26abd53d
......@@ -902,7 +902,7 @@ static void close_tx(struct atm_vcc *vcc)
zatm_dev->tx_bw += vcc->qos.txtp.min_pcr;
dealloc_shaper(vcc->dev,zatm_vcc->shaper);
}
if (zatm_vcc->ring) kfree(zatm_vcc->ring);
kfree(zatm_vcc->ring);
}
......@@ -1339,12 +1339,9 @@ static int __init zatm_start(struct atm_dev *dev)
return 0;
out:
for (i = 0; i < NR_MBX; i++)
if (zatm_dev->mbx_start[i] != 0)
kfree((void *) zatm_dev->mbx_start[i]);
if (zatm_dev->rx_map != NULL)
kfree(zatm_dev->rx_map);
if (zatm_dev->tx_map != NULL)
kfree(zatm_dev->tx_map);
kfree(zatm_dev->mbx_start[i]);
kfree(zatm_dev->rx_map);
kfree(zatm_dev->tx_map);
free_irq(zatm_dev->irq, dev);
return error;
}
......
drivers/block/ub.c
浏览文件 @ 26abd53d
此差异已折叠。
drivers/char/mxser.c
浏览文件 @ 26abd53d
......@@ -1995,9 +1995,6 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
unsigned char ch, gdl;
int ignored = 0;
int cnt = 0;
unsigned char *cp;
char *fp;
int count;
int recv_room;
int max = 256;
unsigned long flags;
......@@ -2011,10 +2008,6 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
//return;
}
cp = tty->flip.char_buf;
fp = tty->flip.flag_buf;
count = 0;
// following add by Victor Yu. 09-02-2002
if (info->IsMoxaMustChipFlag != MOXA_OTHER_UART) {
......@@ -2041,12 +2034,10 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
}
while (gdl--) {
ch = inb(info->base + UART_RX);
count++;
*cp++ = ch;
*fp++ = 0;
tty_insert_flip_char(tty, ch, 0);
cnt++;
/*
if((count>=HI_WATER) && (info->stop_rx==0)){
if((cnt>=HI_WATER) && (info->stop_rx==0)){
mxser_stoprx(tty);
info->stop_rx=1;
break;
......@@ -2061,7 +2052,7 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
if (max-- < 0)
break;
/*
if((count>=HI_WATER) && (info->stop_rx==0)){
if((cnt>=HI_WATER) && (info->stop_rx==0)){
mxser_stoprx(tty);
info->stop_rx=1;
break;
......@@ -2078,36 +2069,33 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
if (++ignored > 100)
break;
} else {
count++;
char flag = 0;
if (*status & UART_LSR_SPECIAL) {
if (*status & UART_LSR_BI) {
*fp++ = TTY_BREAK;
flag = TTY_BREAK;
/* added by casper 1/11/2000 */
info->icount.brk++;
/* */
if (info->flags & ASYNC_SAK)
do_SAK(tty);
} else if (*status & UART_LSR_PE) {
*fp++ = TTY_PARITY;
flag = TTY_PARITY;
/* added by casper 1/11/2000 */
info->icount.parity++;
/* */
} else if (*status & UART_LSR_FE) {
*fp++ = TTY_FRAME;
flag = TTY_FRAME;
/* added by casper 1/11/2000 */
info->icount.frame++;
/* */
} else if (*status & UART_LSR_OE) {
*fp++ = TTY_OVERRUN;
flag = TTY_OVERRUN;
/* added by casper 1/11/2000 */
info->icount.overrun++;
/* */
} else
*fp++ = 0;
} else
*fp++ = 0;
*cp++ = ch;
}
}
tty_insert_flip_char(tty, ch, flag);
cnt++;
if (cnt >= recv_room) {
if (!info->ldisc_stop_rx) {
......@@ -2132,13 +2120,13 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
// above add by Victor Yu. 09-02-2002
} while (*status & UART_LSR_DR);
end_intr: // add by Victor Yu. 09-02-2002
end_intr: // add by Victor Yu. 09-02-2002
mxvar_log.rxcnt[info->port] += cnt;
info->mon_data.rxcnt += cnt;
info->mon_data.up_rxcnt += cnt;
spin_unlock_irqrestore(&info->slock, flags);
tty_flip_buffer_push(tty);
}
......
drivers/net/pcmcia/3c574_cs.c
浏览文件 @ 26abd53d
......@@ -1274,6 +1274,9 @@ static int el3_close(struct net_device *dev)
spin_lock_irqsave(&lp->window_lock, flags);
update_stats(dev);
spin_unlock_irqrestore(&lp->window_lock, flags);
/* force interrupts off */
outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
}
link->open--;
......
drivers/net/r8169.c
浏览文件 @ 26abd53d
......@@ -1585,8 +1585,8 @@ rtl8169_hw_start(struct net_device *dev)
RTL_W8(ChipCmd, CmdTxEnb | CmdRxEnb);
RTL_W8(EarlyTxThres, EarlyTxThld);
/* For gigabit rtl8169, MTU + header + CRC + VLAN */
RTL_W16(RxMaxSize, tp->rx_buf_sz);
/* Low hurts. Let's disable the filtering. */
RTL_W16(RxMaxSize, 16383);
/* Set Rx Config register */
i = rtl8169_rx_config |
......@@ -2127,6 +2127,11 @@ rtl8169_tx_interrupt(struct net_device *dev, struct rtl8169_private *tp,
}
}
static inline int rtl8169_fragmented_frame(u32 status)
{
return (status & (FirstFrag | LastFrag)) != (FirstFrag | LastFrag);
}
static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc)
{
u32 opts1 = le32_to_cpu(desc->opts1);
......@@ -2177,27 +2182,41 @@ rtl8169_rx_interrupt(struct net_device *dev, struct rtl8169_private *tp,
while (rx_left > 0) {
unsigned int entry = cur_rx % NUM_RX_DESC;
struct RxDesc *desc = tp->RxDescArray + entry;
u32 status;
rmb();
status = le32_to_cpu(tp->RxDescArray[entry].opts1);
status = le32_to_cpu(desc->opts1);
if (status & DescOwn)
break;
if (status & RxRES) {
printk(KERN_INFO "%s: Rx ERROR!!!\n", dev->name);
printk(KERN_INFO "%s: Rx ERROR. status = %08x\n",
dev->name, status);
tp->stats.rx_errors++;
if (status & (RxRWT | RxRUNT))
tp->stats.rx_length_errors++;
if (status & RxCRC)
tp->stats.rx_crc_errors++;
rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
} else {
struct RxDesc *desc = tp->RxDescArray + entry;
struct sk_buff *skb = tp->Rx_skbuff[entry];
int pkt_size = (status & 0x00001FFF) - 4;
void (*pci_action)(struct pci_dev *, dma_addr_t,
size_t, int) = pci_dma_sync_single_for_device;
/*
* The driver does not support incoming fragmented
* frames. They are seen as a symptom of over-mtu
* sized frames.
*/
if (unlikely(rtl8169_fragmented_frame(status))) {
tp->stats.rx_dropped++;
tp->stats.rx_length_errors++;
rtl8169_mark_to_asic(desc, tp->rx_buf_sz);
goto move_on;
}
rtl8169_rx_csum(skb, desc);
pci_dma_sync_single_for_cpu(tp->pci_dev,
......@@ -2224,7 +2243,7 @@ rtl8169_rx_interrupt(struct net_device *dev, struct rtl8169_private *tp,
tp->stats.rx_bytes += pkt_size;
tp->stats.rx_packets++;
}
move_on:
cur_rx++;
rx_left--;
}
......
drivers/net/shaper.c
浏览文件 @ 26abd53d
......@@ -100,35 +100,8 @@ static int sh_debug; /* Debug flag */
#define SHAPER_BANNER "CymruNet Traffic Shaper BETA 0.04 for Linux 2.1\n"
/*
* Locking
*/
static int shaper_lock(struct shaper *sh)
{
/*
* Lock in an interrupt must fail
*/
while (test_and_set_bit(0, &sh->locked))
{
if (!in_interrupt())
sleep_on(&sh->wait_queue);
else
return 0;
}
return 1;
}
static void shaper_kick(struct shaper *sh);
static void shaper_unlock(struct shaper *sh)
{
clear_bit(0, &sh->locked);
wake_up(&sh->wait_queue);
shaper_kick(sh);
}
/*
* Compute clocks on a buffer
*/
......@@ -157,17 +130,15 @@ static void shaper_setspeed(struct shaper *shaper, int bitspersec)
* Throw a frame at a shaper.
*/
static int shaper_qframe(struct shaper *shaper, struct sk_buff *skb)
static int shaper_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct shaper *shaper = dev->priv;
struct sk_buff *ptr;
/*
* Get ready to work on this shaper. Lock may fail if its
* an interrupt and locked.
*/
if(!shaper_lock(shaper))
return -1;
if (down_trylock(&shaper->sem))
return -1;
ptr=shaper->sendq.prev;
/*
......@@ -260,7 +231,8 @@ static int shaper_qframe(struct shaper *shaper, struct sk_buff *skb)
dev_kfree_skb(ptr);
shaper->stats.collisions++;
}
shaper_unlock(shaper);
shaper_kick(shaper);
up(&shaper->sem);
return 0;
}
......@@ -297,8 +269,13 @@ static void shaper_queue_xmit(struct shaper *shaper, struct sk_buff *skb)
static void shaper_timer(unsigned long data)
{
struct shaper *sh=(struct shaper *)data;
shaper_kick(sh);
struct shaper *shaper = (struct shaper *)data;
if (!down_trylock(&shaper->sem)) {
shaper_kick(shaper);
up(&shaper->sem);
} else
mod_timer(&shaper->timer, jiffies);
}
/*
......@@ -310,19 +287,6 @@ static void shaper_kick(struct shaper *shaper)
{
struct sk_buff *skb;
/*
* Shaper unlock will kick
*/
if (test_and_set_bit(0, &shaper->locked))
{
if(sh_debug)
printk("Shaper locked.\n");
mod_timer(&shaper->timer, jiffies);
return;
}
/*
* Walk the list (may be empty)
*/
......@@ -364,8 +328,6 @@ static void shaper_kick(struct shaper *shaper)
if(skb!=NULL)
mod_timer(&shaper->timer, SHAPERCB(skb)->shapeclock);
clear_bit(0, &shaper->locked);
}
......@@ -376,14 +338,12 @@ static void shaper_kick(struct shaper *shaper)
static void shaper_flush(struct shaper *shaper)
{
struct sk_buff *skb;
if(!shaper_lock(shaper))
{
printk(KERN_ERR "shaper: shaper_flush() called by an irq!\n");
return;
}
down(&shaper->sem);
while((skb=skb_dequeue(&shaper->sendq))!=NULL)
dev_kfree_skb(skb);
shaper_unlock(shaper);
shaper_kick(shaper);
up(&shaper->sem);
}
/*
......@@ -426,13 +386,6 @@ static int shaper_close(struct net_device *dev)
* ARP and other resolutions and not before.
*/
static int shaper_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct shaper *sh=dev->priv;
return shaper_qframe(sh, skb);
}
static struct net_device_stats *shaper_get_stats(struct net_device *dev)
{
struct shaper *sh=dev->priv;
......@@ -623,7 +576,6 @@ static void shaper_init_priv(struct net_device *dev)
init_timer(&sh->timer);
sh->timer.function=shaper_timer;
sh->timer.data=(unsigned long)sh;
init_waitqueue_head(&sh->wait_queue);
}
/*
......
drivers/scsi/ata_piix.c
浏览文件 @ 26abd53d
......@@ -665,15 +665,6 @@ static int piix_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
return ata_pci_init_one(pdev, port_info, n_ports);
}
/**
* piix_init -
*
* LOCKING:
*
* RETURNS:
*
*/
static int __init piix_init(void)
{
int rc;
......@@ -689,13 +680,6 @@ static int __init piix_init(void)
return 0;
}
/**
* piix_exit -
*
* LOCKING:
*
*/
static void __exit piix_exit(void)
{
pci_unregister_driver(&piix_pci_driver);
......
drivers/scsi/libata-core.c
浏览文件 @ 26abd53d
此差异已折叠。
drivers/scsi/libata-scsi.c
浏览文件 @ 26abd53d
......@@ -947,7 +947,7 @@ unsigned int ata_scsiop_inq_83(struct ata_scsi_args *args, u8 *rbuf,
}
/**
* ata_scsiop_noop -
* ata_scsiop_noop - Command handler that simply returns success.
* @args: device IDENTIFY data / SCSI command of interest.
* @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
* @buflen: Response buffer length.
......
drivers/scsi/qla2xxx/qla_os.c
浏览文件 @ 26abd53d
......@@ -507,6 +507,7 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
int ret, i;
unsigned int id, lun;
unsigned long serial;
unsigned long flags;
if (!CMD_SP(cmd))
return FAILED;
......@@ -519,7 +520,7 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
/* Check active list for command command. */
spin_unlock_irq(ha->host->host_lock);
spin_lock(&ha->hardware_lock);
spin_lock_irqsave(&ha->hardware_lock, flags);
for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
sp = ha->outstanding_cmds[i];
......@@ -534,7 +535,7 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
sp->state));
DEBUG3(qla2x00_print_scsi_cmd(cmd);)
spin_unlock(&ha->hardware_lock);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (qla2x00_abort_command(ha, sp)) {
DEBUG2(printk("%s(%ld): abort_command "
"mbx failed.\n", __func__, ha->host_no));
......@@ -543,20 +544,19 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
"mbx success.\n", __func__, ha->host_no));
ret = SUCCESS;
}
spin_lock(&ha->hardware_lock);
spin_lock_irqsave(&ha->hardware_lock, flags);
break;
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
/* Wait for the command to be returned. */
if (ret == SUCCESS) {
spin_unlock(&ha->hardware_lock);
if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
qla_printk(KERN_ERR, ha,
"scsi(%ld:%d:%d): Abort handler timed out -- %lx "
"%x.\n", ha->host_no, id, lun, serial, ret);
}
spin_lock(&ha->hardware_lock);
}
spin_lock_irq(ha->host->host_lock);
......@@ -588,6 +588,7 @@ qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
int status;
srb_t *sp;
struct scsi_cmnd *cmd;
unsigned long flags;
status = 0;
......@@ -596,11 +597,11 @@ qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
* array
*/
for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
spin_lock(&ha->hardware_lock);
spin_lock_irqsave(&ha->hardware_lock, flags);
sp = ha->outstanding_cmds[cnt];
if (sp) {
cmd = sp->cmd;
spin_unlock(&ha->hardware_lock);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (cmd->device->id == t) {
if (!qla2x00_eh_wait_on_command(ha, cmd)) {
status = 1;
......@@ -608,7 +609,7 @@ qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
}
}
} else {
spin_unlock(&ha->hardware_lock);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
}
return (status);
......@@ -740,6 +741,7 @@ qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
int status;
srb_t *sp;
struct scsi_cmnd *cmd;
unsigned long flags;
status = 1;
......@@ -748,17 +750,17 @@ qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
* array
*/
for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
spin_lock(&ha->hardware_lock);
spin_lock_irqsave(&ha->hardware_lock, flags);
sp = ha->outstanding_cmds[cnt];
if (sp) {
cmd = sp->cmd;
spin_unlock(&ha->hardware_lock);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
status = qla2x00_eh_wait_on_command(ha, cmd);
if (status == 0)
break;
}
else {
spin_unlock(&ha->hardware_lock);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
}
return (status);
......
drivers/scsi/scsi_scan.c
浏览文件 @ 26abd53d
......@@ -1197,6 +1197,7 @@ struct scsi_device *__scsi_add_device(struct Scsi_Host *shost, uint channel,
if (!starget)
return ERR_PTR(-ENOMEM);
get_device(&starget->dev);
down(&shost->scan_mutex);
res = scsi_probe_and_add_lun(starget, lun, NULL, &sdev, 1, hostdata);
if (res != SCSI_SCAN_LUN_PRESENT)
......
drivers/serial/vr41xx_siu.c
浏览文件 @ 26abd53d
......@@ -234,7 +234,7 @@ static inline const char *siu_type_name(struct uart_port *port)
return "DSIU";
}
return "unknown";
return NULL;
}
static unsigned int siu_tx_empty(struct uart_port *port)
......@@ -482,9 +482,6 @@ static irqreturn_t siu_interrupt(int irq, void *dev_id, struct pt_regs *regs)
struct uart_port *port;
uint8_t iir, lsr;
if (dev_id == NULL)
return IRQ_NONE;
port = (struct uart_port *)dev_id;
iir = siu_read(port, UART_IIR);
......@@ -507,6 +504,9 @@ static int siu_startup(struct uart_port *port)
{
int retval;
if (port->membase == NULL)
return -ENODEV;
siu_clear_fifo(port);
(void)siu_read(port, UART_LSR);
......@@ -545,9 +545,6 @@ static void siu_shutdown(struct uart_port *port)
unsigned long flags;
uint8_t lcr;
if (port->membase == NULL)
return;
siu_write(port, UART_IER, 0);
spin_lock_irqsave(&port->lock, flags);
......@@ -802,53 +799,6 @@ static int siu_init_ports(void)
#ifdef CONFIG_SERIAL_VR41XX_CONSOLE
static void early_set_termios(struct uart_port *port, struct termios *new,
struct termios *old)
{
tcflag_t c_cflag;
uint8_t lcr;
unsigned int baud, quot;
c_cflag = new->c_cflag;
switch (c_cflag & CSIZE) {
case CS5:
lcr = UART_LCR_WLEN5;
break;
case CS6:
lcr = UART_LCR_WLEN6;
break;
case CS7:
lcr = UART_LCR_WLEN7;
break;
default:
lcr = UART_LCR_WLEN8;
break;
}
if (c_cflag & CSTOPB)
lcr |= UART_LCR_STOP;
if (c_cflag & PARENB)
lcr |= UART_LCR_PARITY;
if ((c_cflag & PARODD) != PARODD)
lcr |= UART_LCR_EPAR;
if (c_cflag & CMSPAR)
lcr |= UART_LCR_SPAR;
baud = uart_get_baud_rate(port, new, old, 0, port->uartclk/16);
quot = uart_get_divisor(port, baud);
siu_write(port, UART_LCR, lcr | UART_LCR_DLAB);
siu_write(port, UART_DLL, (uint8_t)quot);
siu_write(port, UART_DLM, (uint8_t)(quot >> 8));
siu_write(port, UART_LCR, lcr);
}
static struct uart_ops early_uart_ops = {
.set_termios = early_set_termios,
};
#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
static void wait_for_xmitr(struct uart_port *port)
......@@ -915,7 +865,7 @@ static int siu_console_setup(struct console *con, char *options)
if (port->membase == NULL) {
if (port->mapbase == 0)
return -ENODEV;
port->membase = (unsigned char __iomem *)KSEG1ADDR(port->mapbase);
port->membase = ioremap(port->mapbase, siu_port_size(port));
}
vr41xx_select_siu_interface(SIU_INTERFACE_RS232C);
......@@ -949,7 +899,7 @@ static int __devinit siu_console_init(void)
for (i = 0; i < num; i++) {
port = &siu_uart_ports[i];
port->ops = &early_uart_ops;
port->ops = &siu_uart_ops;
}
register_console(&siu_console);
......@@ -994,8 +944,10 @@ static int siu_probe(struct device *dev)
port->dev = dev;
retval = uart_add_one_port(&siu_uart_driver, port);
if (retval)
if (retval < 0) {
port->dev = NULL;
break;
}
}
if (i == 0 && retval < 0) {
......
drivers/usb/core/sysfs.c
浏览文件 @ 26abd53d
......@@ -290,32 +290,30 @@ static ssize_t show_modalias(struct device *dev, char *buf)
{
struct usb_interface *intf;
struct usb_device *udev;
int len;
intf = to_usb_interface(dev);
udev = interface_to_usbdev(intf);
if (udev->descriptor.bDeviceClass == 0) {
struct usb_host_interface *alt = intf->cur_altsetting;
return sprintf(buf, "usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic%02Xisc%02Xip%02X\n",
len = sprintf(buf, "usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic",
le16_to_cpu(udev->descriptor.idVendor),
le16_to_cpu(udev->descriptor.idProduct),
le16_to_cpu(udev->descriptor.bcdDevice),
udev->descriptor.bDeviceClass,
udev->descriptor.bDeviceSubClass,
udev->descriptor.bDeviceProtocol,
udev->descriptor.bDeviceProtocol);
buf += len;
if (udev->descriptor.bDeviceClass == 0) {
struct usb_host_interface *alt = intf->cur_altsetting;
return len + sprintf(buf, "%02Xisc%02Xip%02X\n",
alt->desc.bInterfaceClass,
alt->desc.bInterfaceSubClass,
alt->desc.bInterfaceProtocol);
} else {
return sprintf(buf, "usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic*isc*ip*\n",
le16_to_cpu(udev->descriptor.idVendor),
le16_to_cpu(udev->descriptor.idProduct),
le16_to_cpu(udev->descriptor.bcdDevice),
udev->descriptor.bDeviceClass,
udev->descriptor.bDeviceSubClass,
udev->descriptor.bDeviceProtocol);
return len + sprintf(buf, "*isc*ip*\n");
}
}
static DEVICE_ATTR(modalias, S_IRUGO, show_modalias, NULL);
......
drivers/usb/input/hid-core.c
浏览文件 @ 26abd53d
......@@ -1315,6 +1315,8 @@ void hid_init_reports(struct hid_device *hid)
#define USB_DEVICE_ID_WACOM_INTUOS2 0x0040
#define USB_DEVICE_ID_WACOM_VOLITO 0x0060
#define USB_DEVICE_ID_WACOM_PTU 0x0003
#define USB_DEVICE_ID_WACOM_INTUOS3 0x00B0
#define USB_DEVICE_ID_WACOM_CINTIQ 0x003F
#define USB_VENDOR_ID_KBGEAR 0x084e
#define USB_DEVICE_ID_KBGEAR_JAMSTUDIO 0x1001
......@@ -1401,6 +1403,7 @@ void hid_init_reports(struct hid_device *hid)
#define USB_VENDOR_ID_DELORME 0x1163
#define USB_DEVICE_ID_DELORME_EARTHMATE 0x0100
#define USB_DEVICE_ID_DELORME_EM_LT20 0x0200
#define USB_VENDOR_ID_MCC 0x09db
#define USB_DEVICE_ID_MCC_PMD1024LS 0x0076
......@@ -1412,6 +1415,12 @@ void hid_init_reports(struct hid_device *hid)
#define USB_VENDOR_ID_BTC 0x046e
#define USB_DEVICE_ID_BTC_KEYBOARD 0x5303
#define USB_VENDOR_ID_VERNIER 0x08f7
#define USB_DEVICE_ID_VERNIER_LABPRO 0x0001
#define USB_DEVICE_ID_VERNIER_GOTEMP 0x0002
#define USB_DEVICE_ID_VERNIER_SKIP 0x0003
#define USB_DEVICE_ID_VERNIER_CYCLOPS 0x0004
/*
* Alphabetically sorted blacklist by quirk type.
......@@ -1437,6 +1446,7 @@ static struct hid_blacklist {
{ USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW28, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30, HID_QUIRK_IGNORE },
......@@ -1456,6 +1466,10 @@ static struct hid_blacklist {
{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PENPARTNER, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 1, HID_QUIRK_IGNORE },
......@@ -1481,6 +1495,10 @@ static struct hid_blacklist {
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 7, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PTU, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 1, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS3 + 2, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_CINTIQ, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20, HID_QUIRK_IGNORE },
{ USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20, HID_QUIRK_IGNORE },
......
drivers/usb/media/pwc/ChangeLog 已删除 100644 → 0
浏览文件 @ ff89bf3b
9.0.2
* Adding #ifdef to compile PWC before and after 2.6.5
9.0.1
9.0
8.12
* Implement motorized pan/tilt feature for Logitech QuickCam Orbit/Spere.
8.11.1
* Fix for PCVC720/40, would not be able to set videomode
* Fix for Samsung MPC models, appearantly they are based on a newer chipset
8.11
* 20 dev_hints (per request)
* Hot unplugging should be better, no more dangling pointers or memory leaks
* Added reserved Logitech webcam IDs
* Device now remembers size & fps between close()/open()
* Removed palette stuff altogether
8.10.1
* Added IDs for PCVC720K/40 and Creative Labs Webcam Pro
8.10
* Fixed ID for QuickCam Notebook pro
* Added GREALSIZE ioctl() call
* Fixed bug in case PWCX was not loaded and invalid size was set
8.9
* Merging with kernel 2.5.49
* Adding IDs for QuickCam Zoom & QuickCam Notebook
8.8
* Fixing 'leds' parameter
* Adding IDs for Logitech QuickCam Pro 4000
* Making URB init/cleanup a little nicer
8.7
* Incorporating changes in ioctl() parameter passing
* Also changes to URB mechanism
8.6
* Added ID's for Visionite VCS UM100 and UC300
* Removed YUV420-interlaced palette altogether (was confusing)
* Removed MIRROR stuff as it didn't work anyway
* Fixed a problem with the 'leds' parameter (wouldn't blink)
* Added ioctl()s for advanced features: 'extended' whitebalance ioctl()s,
CONTOUR, BACKLIGHT, FLICKER, DYNNOISE.
* VIDIOCGCAP.name now contains real camera model name instead of
'Philips xxx webcam'
* Added PROBE ioctl (see previous point & API doc)
8.5
* Adding IDs for Creative Labs Webcam 5
* Adding IDs for SOTEC CMS-001 webcam
* Solving possible hang in VIDIOCSYNC when unplugging the cam
* Forgot to return structure in VIDIOCPWCGAWB, oops
* Time interval for the LEDs are now in milliseconds
8.4
* Fixing power_save option for Vesta range
* Handling new error codes in ISOC callback
* Adding dev_hint module parameter, to specify /dev/videoX device nodes
8.3
* Adding Samsung C10 and C30 cameras
* Removing palette module parameter
* Fixed typo in ID of QuickCam 3000 Pro
* Adding LED settings (blinking while in use) for ToUCam cameras.
* Turns LED off when camera is not in use.
8.2
* Making module more silent when trace = 0
* Adding QuickCam 3000 Pro IDs
* Chrominance control for the Vesta cameras
* Hopefully fixed problems on machines with BIGMEM and > 1GB of RAM
* Included Oliver Neukem's lock_kernel() patch
* Allocates less memory for image buffers
* Adds ioctl()s for the whitebalancing
8.1
* Adding support for 750
* Adding V4L GAUDIO/SAUDIO/UNIT ioctl() calls
8.0
* 'damage control' after inclusion in 2.4.5.
* Changed wait-queue mechanism in read/mmap/poll according to the book.
* Included YUV420P palette.
* Changed interface to decompressor module.
* Cleaned up pwc structure a bit.
7.0
* Fixed bug in vcvt_420i_yuyv; extra variables on stack were misaligned.
* There is now a clear error message when an image size is selected that
is only supported using the decompressor, and the decompressor isn't
loaded.
* When the decompressor wasn't loaded, selecting large image size
would create skewed or double images.
6.3
* Introduced spinlocks for the buffer pointer manipulation; a number of
reports seem to suggest the down()/up() semaphores were the cause of
lockups, since they are not suitable for interrupt/user locking.
* Separated decompressor and core code into 2 modules.
6.2
* Non-integral image sizes are now padded with gray or black.
* Added SHUTTERSPEED ioctl().
* Fixed buglet in VIDIOCPWCSAGC; the function would always return an error,
even though the call succeeded.
* Added hotplug support for 2.4.*.
* Memory: the 645/646 uses less memory now.
6.1
* VIDIOCSPICT returns -EINVAL with invalid palettes.
* Added saturation control.
* Split decompressors from rest.
* Fixed bug that would reset the framerate to the default framerate if
the rate field was set to 0 (which is not what I intended, nl. do not
change the framerate!).
* VIDIOCPWCSCQUAL (setting compression quality) now takes effect immediately.
* Workaround for a bug in the 730 sensor.
drivers/usb/net/usbnet.c
浏览文件 @ 26abd53d
......@@ -2765,7 +2765,7 @@ static int blan_mdlm_bind (struct usbnet *dev, struct usb_interface *intf)
}
/* expect bcdVersion 1.0, ignore */
if (memcmp(&desc->bGUID, blan_guid, 16)
&& memcmp(&desc->bGUID, blan_guid, 16) ) {
&& memcmp(&desc->bGUID, safe_guid, 16) ) {
/* hey, this one might _really_ be MDLM! */
dev_dbg (&intf->dev, "MDLM guid\n");
goto bad_desc;
......
drivers/usb/serial/Kconfig
浏览文件 @ 26abd53d
......@@ -455,6 +455,17 @@ config USB_SERIAL_XIRCOM
To compile this driver as a module, choose M here: the
module will be called keyspan_pda.
config USB_SERIAL_OPTION
tristate "USB Option PCMCIA serial driver"
depends on USB_SERIAL && USB_OHCI_HCD && PCCARD
help
Say Y here if you want to use an Option card. This is a
GSM card, controlled by three serial ports which are connected
via an OHCI adapter located on a PC card.
To compile this driver as a module, choose M here: the
module will be called option.
config USB_SERIAL_OMNINET
tristate "USB ZyXEL omni.net LCD Plus Driver (EXPERIMENTAL)"
depends on USB_SERIAL && EXPERIMENTAL
......
drivers/usb/serial/Makefile
浏览文件 @ 26abd53d
......@@ -32,6 +32,7 @@ obj-$(CONFIG_USB_SERIAL_KLSI) += kl5kusb105.o
obj-$(CONFIG_USB_SERIAL_KOBIL_SCT) += kobil_sct.o
obj-$(CONFIG_USB_SERIAL_MCT_U232) += mct_u232.o
obj-$(CONFIG_USB_SERIAL_OMNINET) += omninet.o
obj-$(CONFIG_USB_SERIAL_OPTION) += option.o
obj-$(CONFIG_USB_SERIAL_PL2303) += pl2303.o
obj-$(CONFIG_USB_SERIAL_SAFE) += safe_serial.o
obj-$(CONFIG_USB_SERIAL_TI) += ti_usb_3410_5052.o
......
drivers/usb/serial/cp2101.c
浏览文件 @ 26abd53d
此差异已折叠。
drivers/usb/serial/option.c 0 → 100644
浏览文件 @ 26abd53d
此差异已折叠。
drivers/usb/storage/unusual_devs.h
浏览文件 @ 26abd53d
......@@ -862,6 +862,15 @@ UNUSUAL_DEV( 0x090a, 0x1001, 0x0100, 0x0100,
US_SC_DEVICE, US_PR_BULK, NULL,
US_FL_NEED_OVERRIDE ),
/* Reported by Filippo Bardelli <filibard@libero.it>
* The device reports a subclass of RBC, which is wrong.
*/
UNUSUAL_DEV( 0x090a, 0x1050, 0x0100, 0x0100,
"Trumpion Microelectronics, Inc.",
"33520 USB Digital Voice Recorder",
US_SC_UFI, US_PR_DEVICE, NULL,
0),
/* Trumpion Microelectronics MP3 player (felipe_alfaro@linuxmail.org) */
UNUSUAL_DEV( 0x090a, 0x1200, 0x0000, 0x9999,
"Trumpion",
......
fs/binfmt_flat.c
浏览文件 @ 26abd53d
......@@ -520,7 +520,7 @@ static int load_flat_file(struct linux_binprm * bprm,
DBG_FLT("BINFMT_FLAT: ROM mapping of file (we hope)\n");
down_write(&current->mm->mmap_sem);
textpos = do_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC, 0, 0);
textpos = do_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC, MAP_SHARED, 0);
up_write(&current->mm->mmap_sem);
if (!textpos || textpos >= (unsigned long) -4096) {
if (!textpos)
......@@ -532,7 +532,7 @@ static int load_flat_file(struct linux_binprm * bprm,
down_write(&current->mm->mmap_sem);
realdatastart = do_mmap(0, 0, data_len + extra +
MAX_SHARED_LIBS * sizeof(unsigned long),
PROT_READ|PROT_WRITE|PROT_EXEC, 0, 0);
PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, 0);
up_write(&current->mm->mmap_sem);
if (realdatastart == 0 || realdatastart >= (unsigned long)-4096) {
......@@ -574,7 +574,7 @@ static int load_flat_file(struct linux_binprm * bprm,
down_write(&current->mm->mmap_sem);
textpos = do_mmap(0, 0, text_len + data_len + extra +
MAX_SHARED_LIBS * sizeof(unsigned long),
PROT_READ | PROT_EXEC | PROT_WRITE, 0, 0);
PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0);
up_write(&current->mm->mmap_sem);
if (!textpos || textpos >= (unsigned long) -4096) {
if (!textpos)
......
fs/mpage.c
浏览文件 @ 26abd53d
......@@ -79,8 +79,11 @@ static int mpage_end_io_write(struct bio *bio, unsigned int bytes_done, int err)
if (--bvec >= bio->bi_io_vec)
prefetchw(&bvec->bv_page->flags);
if (!uptodate)
if (!uptodate){
SetPageError(page);
if (page->mapping)
set_bit(AS_EIO, &page->mapping->flags);
}
end_page_writeback(page);
} while (bvec >= bio->bi_io_vec);
bio_put(bio);
......
fs/namei.c
浏览文件 @ 26abd53d
......@@ -493,12 +493,21 @@ static inline int __vfs_follow_link(struct nameidata *nd, const char *link)
return PTR_ERR(link);
}
static inline int __do_follow_link(struct dentry *dentry, struct nameidata *nd)
struct path {
struct vfsmount *mnt;
struct dentry *dentry;
};
static inline int __do_follow_link(struct path *path, struct nameidata *nd)
{
int error;
struct dentry *dentry = path->dentry;
touch_atime(nd->mnt, dentry);
touch_atime(path->mnt, dentry);
nd_set_link(nd, NULL);
if (path->mnt == nd->mnt)
mntget(path->mnt);
error = dentry->d_inode->i_op->follow_link(dentry, nd);
if (!error) {
char *s = nd_get_link(nd);
......@@ -507,6 +516,8 @@ static inline int __do_follow_link(struct dentry *dentry, struct nameidata *nd)
if (dentry->d_inode->i_op->put_link)
dentry->d_inode->i_op->put_link(dentry, nd);
}
dput(dentry);
mntput(path->mnt);
return error;
}
......@@ -518,7 +529,7 @@ static inline int __do_follow_link(struct dentry *dentry, struct nameidata *nd)
* Without that kind of total limit, nasty chains of consecutive
* symlinks can cause almost arbitrarily long lookups.
*/
static inline int do_follow_link(struct dentry *dentry, struct nameidata *nd)
static inline int do_follow_link(struct path *path, struct nameidata *nd)
{
int err = -ELOOP;
if (current->link_count >= MAX_NESTED_LINKS)
......@@ -527,17 +538,20 @@ static inline int do_follow_link(struct dentry *dentry, struct nameidata *nd)
goto loop;
BUG_ON(nd->depth >= MAX_NESTED_LINKS);
cond_resched();
err = security_inode_follow_link(dentry, nd);
err = security_inode_follow_link(path->dentry, nd);
if (err)
goto loop;
current->link_count++;
current->total_link_count++;
nd->depth++;
err = __do_follow_link(dentry, nd);
err = __do_follow_link(path, nd);
current->link_count--;
nd->depth--;
return err;
loop:
dput(path->dentry);
if (path->mnt != nd->mnt)
mntput(path->mnt);
path_release(nd);
return err;
}
......@@ -565,87 +579,91 @@ int follow_up(struct vfsmount **mnt, struct dentry **dentry)
/* no need for dcache_lock, as serialization is taken care in
* namespace.c
*/
static int follow_mount(struct vfsmount **mnt, struct dentry **dentry)
static int __follow_mount(struct path *path)
{
int res = 0;
while (d_mountpoint(path->dentry)) {
struct vfsmount *mounted = lookup_mnt(path->mnt, path->dentry);
if (!mounted)
break;
dput(path->dentry);
if (res)
mntput(path->mnt);
path->mnt = mounted;
path->dentry = dget(mounted->mnt_root);
res = 1;
}
return res;
}
static void follow_mount(struct vfsmount **mnt, struct dentry **dentry)
{
while (d_mountpoint(*dentry)) {
struct vfsmount *mounted = lookup_mnt(*mnt, *dentry);
if (!mounted)
break;
dput(*dentry);
mntput(*mnt);
*mnt = mounted;
dput(*dentry);
*dentry = dget(mounted->mnt_root);
res = 1;
}
return res;
}
/* no need for dcache_lock, as serialization is taken care in
* namespace.c
*/
static inline int __follow_down(struct vfsmount **mnt, struct dentry **dentry)
int follow_down(struct vfsmount **mnt, struct dentry **dentry)
{
struct vfsmount *mounted;
mounted = lookup_mnt(*mnt, *dentry);
if (mounted) {
dput(*dentry);
mntput(*mnt);
*mnt = mounted;
dput(*dentry);
*dentry = dget(mounted->mnt_root);
return 1;
}
return 0;
}
int follow_down(struct vfsmount **mnt, struct dentry **dentry)
{
return __follow_down(mnt,dentry);
}
static inline void follow_dotdot(struct vfsmount **mnt, struct dentry **dentry)
static inline void follow_dotdot(struct nameidata *nd)
{
while(1) {
struct vfsmount *parent;
struct dentry *old = *dentry;
struct dentry *old = nd->dentry;
read_lock(&current->fs->lock);
if (*dentry == current->fs->root &&
*mnt == current->fs->rootmnt) {
if (nd->dentry == current->fs->root &&
nd->mnt == current->fs->rootmnt) {
read_unlock(&current->fs->lock);
break;
}
read_unlock(&current->fs->lock);
spin_lock(&dcache_lock);
if (*dentry != (*mnt)->mnt_root) {
*dentry = dget((*dentry)->d_parent);
if (nd->dentry != nd->mnt->mnt_root) {
nd->dentry = dget(nd->dentry->d_parent);
spin_unlock(&dcache_lock);
dput(old);
break;
}
spin_unlock(&dcache_lock);
spin_lock(&vfsmount_lock);
parent = (*mnt)->mnt_parent;
if (parent == *mnt) {
parent = nd->mnt->mnt_parent;
if (parent == nd->mnt) {
spin_unlock(&vfsmount_lock);
break;
}
mntget(parent);
*dentry = dget((*mnt)->mnt_mountpoint);
nd->dentry = dget(nd->mnt->mnt_mountpoint);
spin_unlock(&vfsmount_lock);
dput(old);
mntput(*mnt);
*mnt = parent;
mntput(nd->mnt);
nd->mnt = parent;
}
follow_mount(mnt, dentry);
follow_mount(&nd->mnt, &nd->dentry);
}
struct path {
struct vfsmount *mnt;
struct dentry *dentry;
};
/*
* It's more convoluted than I'd like it to be, but... it's still fairly
* small and for now I'd prefer to have fast path as straight as possible.
......@@ -664,6 +682,7 @@ static int do_lookup(struct nameidata *nd, struct qstr *name,
done:
path->mnt = mnt;
path->dentry = dentry;
__follow_mount(path);
return 0;
need_lookup:
......@@ -751,7 +770,7 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
case 2:
if (this.name[1] != '.')
break;
follow_dotdot(&nd->mnt, &nd->dentry);
follow_dotdot(nd);
inode = nd->dentry->d_inode;
/* fallthrough */
case 1:
......@@ -771,8 +790,6 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
err = do_lookup(nd, &this, &next);
if (err)
break;
/* Check mountpoints.. */
follow_mount(&next.mnt, &next.dentry);
err = -ENOENT;
inode = next.dentry->d_inode;
......@@ -783,10 +800,7 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
goto out_dput;
if (inode->i_op->follow_link) {
mntget(next.mnt);
err = do_follow_link(next.dentry, nd);
dput(next.dentry);
mntput(next.mnt);
err = do_follow_link(&next, nd);
if (err)
goto return_err;
err = -ENOENT;
......@@ -798,6 +812,8 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
break;
} else {
dput(nd->dentry);
if (nd->mnt != next.mnt)
mntput(nd->mnt);
nd->mnt = next.mnt;
nd->dentry = next.dentry;
}
......@@ -819,7 +835,7 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
case 2:
if (this.name[1] != '.')
break;
follow_dotdot(&nd->mnt, &nd->dentry);
follow_dotdot(nd);
inode = nd->dentry->d_inode;
/* fallthrough */
case 1:
......@@ -833,19 +849,17 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
err = do_lookup(nd, &this, &next);
if (err)
break;
follow_mount(&next.mnt, &next.dentry);
inode = next.dentry->d_inode;
if ((lookup_flags & LOOKUP_FOLLOW)
&& inode && inode->i_op && inode->i_op->follow_link) {
mntget(next.mnt);
err = do_follow_link(next.dentry, nd);
dput(next.dentry);
mntput(next.mnt);
err = do_follow_link(&next, nd);
if (err)
goto return_err;
inode = nd->dentry->d_inode;
} else {
dput(nd->dentry);
if (nd->mnt != next.mnt)
mntput(nd->mnt);
nd->mnt = next.mnt;
nd->dentry = next.dentry;
}
......@@ -885,6 +899,8 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
return 0;
out_dput:
dput(next.dentry);
if (nd->mnt != next.mnt)
mntput(next.mnt);
break;
}
path_release(nd);
......@@ -1398,7 +1414,7 @@ int may_open(struct nameidata *nd, int acc_mode, int flag)
int open_namei(const char * pathname, int flag, int mode, struct nameidata *nd)
{
int acc_mode, error = 0;
struct dentry *dentry;
struct path path;
struct dentry *dir;
int count = 0;
......@@ -1442,23 +1458,24 @@ int open_namei(const char * pathname, int flag, int mode, struct nameidata *nd)
dir = nd->dentry;
nd->flags &= ~LOOKUP_PARENT;
down(&dir->d_inode->i_sem);
dentry = __lookup_hash(&nd->last, nd->dentry, nd);
path.dentry = __lookup_hash(&nd->last, nd->dentry, nd);
path.mnt = nd->mnt;
do_last:
error = PTR_ERR(dentry);
if (IS_ERR(dentry)) {
error = PTR_ERR(path.dentry);
if (IS_ERR(path.dentry)) {
up(&dir->d_inode->i_sem);
goto exit;
}
/* Negative dentry, just create the file */
if (!dentry->d_inode) {
if (!path.dentry->d_inode) {
if (!IS_POSIXACL(dir->d_inode))
mode &= ~current->fs->umask;
error = vfs_create(dir->d_inode, dentry, mode, nd);
error = vfs_create(dir->d_inode, path.dentry, mode, nd);
up(&dir->d_inode->i_sem);
dput(nd->dentry);
nd->dentry = dentry;
nd->dentry = path.dentry;
if (error)
goto exit;
/* Don't check for write permission, don't truncate */
......@@ -1476,22 +1493,24 @@ int open_namei(const char * pathname, int flag, int mode, struct nameidata *nd)
if (flag & O_EXCL)
goto exit_dput;
if (d_mountpoint(dentry)) {
if (__follow_mount(&path)) {
error = -ELOOP;
if (flag & O_NOFOLLOW)
goto exit_dput;
while (__follow_down(&nd->mnt,&dentry) && d_mountpoint(dentry));
}
error = -ENOENT;
if (!dentry->d_inode)
if (!path.dentry->d_inode)
goto exit_dput;
if (dentry->d_inode->i_op && dentry->d_inode->i_op->follow_link)
if (path.dentry->d_inode->i_op && path.dentry->d_inode->i_op->follow_link)
goto do_link;
dput(nd->dentry);
nd->dentry = dentry;
nd->dentry = path.dentry;
if (nd->mnt != path.mnt)
mntput(nd->mnt);
nd->mnt = path.mnt;
error = -EISDIR;
if (dentry->d_inode && S_ISDIR(dentry->d_inode->i_mode))
if (path.dentry->d_inode && S_ISDIR(path.dentry->d_inode->i_mode))
goto exit;
ok:
error = may_open(nd, acc_mode, flag);
......@@ -1500,7 +1519,9 @@ int open_namei(const char * pathname, int flag, int mode, struct nameidata *nd)
return 0;
exit_dput:
dput(dentry);
dput(path.dentry);
if (nd->mnt != path.mnt)
mntput(path.mnt);
exit:
path_release(nd);
return error;
......@@ -1520,18 +1541,15 @@ int open_namei(const char * pathname, int flag, int mode, struct nameidata *nd)
* are done. Procfs-like symlinks just set LAST_BIND.
*/
nd->flags |= LOOKUP_PARENT;
error = security_inode_follow_link(dentry, nd);
error = security_inode_follow_link(path.dentry, nd);
if (error)
goto exit_dput;
error = __do_follow_link(dentry, nd);
dput(dentry);
error = __do_follow_link(&path, nd);
if (error)
return error;
nd->flags &= ~LOOKUP_PARENT;
if (nd->last_type == LAST_BIND) {
dentry = nd->dentry;
if (nd->last_type == LAST_BIND)
goto ok;
}
error = -EISDIR;
if (nd->last_type != LAST_NORM)
goto exit;
......@@ -1546,7 +1564,8 @@ int open_namei(const char * pathname, int flag, int mode, struct nameidata *nd)
}
dir = nd->dentry;
down(&dir->d_inode->i_sem);
dentry = __lookup_hash(&nd->last, nd->dentry, nd);
path.dentry = __lookup_hash(&nd->last, nd->dentry, nd);
path.mnt = nd->mnt;
putname(nd->last.name);
goto do_last;
}
......
include/asm-h8300/kmap_types.h
浏览文件 @ 26abd53d
#ifndef _ASM_KMAP_TYPES_H
#define _ASM_KMAP_TYPES_H
#ifndef _ASM_H8300_KMAP_TYPES_H
#define _ASM_H8300_KMAP_TYPES_H
enum km_type {
KM_BOUNCE_READ,
......@@ -13,6 +13,8 @@ enum km_type {
KM_PTE1,
KM_IRQ0,
KM_IRQ1,
KM_SOFTIRQ0,
KM_SOFTIRQ1,
KM_TYPE_NR
};
......
include/asm-h8300/mman.h
浏览文件 @ 26abd53d
......@@ -4,6 +4,7 @@
#define PROT_READ 0x1 /* page can be read */
#define PROT_WRITE 0x2 /* page can be written */
#define PROT_EXEC 0x4 /* page can be executed */
#define PROT_SEM 0x8 /* page may be used for atomic ops */
#define PROT_NONE 0x0 /* page can not be accessed */
#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
......@@ -19,6 +20,8 @@
#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
#define MAP_LOCKED 0x2000 /* pages are locked */
#define MAP_NORESERVE 0x4000 /* don't check for reservations */
#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
#define MAP_NONBLOCK 0x10000 /* do not block on IO */
#define MS_ASYNC 1 /* sync memory asynchronously */
#define MS_INVALIDATE 2 /* invalidate the caches */
......
include/asm-s390/user.h
浏览文件 @ 26abd53d
......@@ -10,7 +10,7 @@
#define _S390_USER_H
#include <asm/page.h>
#include <linux/ptrace.h>
#include <asm/ptrace.h>
/* Core file format: The core file is written in such a way that gdb
can understand it and provide useful information to the user (under
linux we use the 'trad-core' bfd). There are quite a number of
......
include/linux/if_shaper.h
浏览文件 @ 26abd53d
......@@ -23,7 +23,7 @@ struct shaper
__u32 shapeclock;
unsigned long recovery; /* Time we can next clock a packet out on
an empty queue */
unsigned long locked;
struct semaphore sem;
struct net_device_stats stats;
struct net_device *dev;
int (*hard_start_xmit) (struct sk_buff *skb,
......@@ -38,7 +38,6 @@ struct shaper
int (*hard_header_cache)(struct neighbour *neigh, struct hh_cache *hh);
void (*header_cache_update)(struct hh_cache *hh, struct net_device *dev, unsigned char * haddr);
struct net_device_stats* (*get_stats)(struct net_device *dev);
wait_queue_head_t wait_queue;
struct timer_list timer;
};
......
include/linux/libata.h
浏览文件 @ 26abd53d
......@@ -467,12 +467,34 @@ static inline u8 ata_chk_status(struct ata_port *ap)
return ap->ops->check_status(ap);
}
/**
* ata_pause - Flush writes and pause 400 nanoseconds.
* @ap: Port to wait for.
*
* LOCKING:
* Inherited from caller.
*/
static inline void ata_pause(struct ata_port *ap)
{
ata_altstatus(ap);
ndelay(400);
}
/**
* ata_busy_wait - Wait for a port status register
* @ap: Port to wait for.
*
* Waits up to max*10 microseconds for the selected bits in the port's
* status register to be cleared.
* Returns final value of status register.
*
* LOCKING:
* Inherited from caller.
*/
static inline u8 ata_busy_wait(struct ata_port *ap, unsigned int bits,
unsigned int max)
{
......@@ -487,6 +509,18 @@ static inline u8 ata_busy_wait(struct ata_port *ap, unsigned int bits,
return status;
}
/**
* ata_wait_idle - Wait for a port to be idle.
* @ap: Port to wait for.
*
* Waits up to 10ms for port's BUSY and DRQ signals to clear.
* Returns final value of status register.
*
* LOCKING:
* Inherited from caller.
*/
static inline u8 ata_wait_idle(struct ata_port *ap)
{
u8 status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
......@@ -525,6 +559,18 @@ static inline void ata_tf_init(struct ata_port *ap, struct ata_taskfile *tf, uns
tf->device = ATA_DEVICE_OBS | ATA_DEV1;
}
/**
* ata_irq_on - Enable interrupts on a port.
* @ap: Port on which interrupts are enabled.
*
* Enable interrupts on a legacy IDE device using MMIO or PIO,
* wait for idle, clear any pending interrupts.
*
* LOCKING:
* Inherited from caller.
*/
static inline u8 ata_irq_on(struct ata_port *ap)
{
struct ata_ioports *ioaddr = &ap->ioaddr;
......@@ -544,6 +590,18 @@ static inline u8 ata_irq_on(struct ata_port *ap)
return tmp;
}
/**
* ata_irq_ack - Acknowledge a device interrupt.
* @ap: Port on which interrupts are enabled.
*
* Wait up to 10 ms for legacy IDE device to become idle (BUSY
* or BUSY+DRQ clear). Obtain dma status and port status from
* device. Clear the interrupt. Return port status.
*
* LOCKING:
*/
static inline u8 ata_irq_ack(struct ata_port *ap, unsigned int chk_drq)
{
unsigned int bits = chk_drq ? ATA_BUSY | ATA_DRQ : ATA_BUSY;
......
include/linux/netdevice.h
浏览文件 @ 26abd53d
......@@ -204,7 +204,7 @@ struct hh_cache
/* cached hardware header; allow for machine alignment needs. */
#define HH_DATA_MOD 16
#define HH_DATA_OFF(__len) \
(HH_DATA_MOD - ((__len) & (HH_DATA_MOD - 1)))
(HH_DATA_MOD - (((__len - 1) & (HH_DATA_MOD - 1)) + 1))
#define HH_DATA_ALIGN(__len) \
(((__len)+(HH_DATA_MOD-1))&~(HH_DATA_MOD - 1))
unsigned long hh_data[HH_DATA_ALIGN(LL_MAX_HEADER) / sizeof(long)];
......
include/linux/usb.h
浏览文件 @ 26abd53d
......@@ -796,6 +796,10 @@ typedef void (*usb_complete_t)(struct urb *, struct pt_regs *);
* of the iso_frame_desc array, and the number of errors is reported in
* error_count. Completion callbacks for ISO transfers will normally
* (re)submit URBs to ensure a constant transfer rate.
*
* Note that even fields marked "public" should not be touched by the driver
* when the urb is owned by the hcd, that is, since the call to
* usb_submit_urb() till the entry into the completion routine.
*/
struct urb
{
......@@ -803,12 +807,12 @@ struct urb
struct kref kref; /* reference count of the URB */
spinlock_t lock; /* lock for the URB */
void *hcpriv; /* private data for host controller */
struct list_head urb_list; /* list pointer to all active urbs */
int bandwidth; /* bandwidth for INT/ISO request */
atomic_t use_count; /* concurrent submissions counter */
u8 reject; /* submissions will fail */
/* public, documented fields in the urb that can be used by drivers */
struct list_head urb_list; /* list head for use by the urb owner */
struct usb_device *dev; /* (in) pointer to associated device */
unsigned int pipe; /* (in) pipe information */
int status; /* (return) non-ISO status */
......
mm/filemap.c
浏览文件 @ 26abd53d
......@@ -1968,6 +1968,7 @@ generic_file_buffered_write(struct kiocb *iocb, const struct iovec *iov,
do {
unsigned long index;
unsigned long offset;
unsigned long maxlen;
size_t copied;
offset = (pos & (PAGE_CACHE_SIZE -1)); /* Within page */
......@@ -1982,7 +1983,10 @@ generic_file_buffered_write(struct kiocb *iocb, const struct iovec *iov,
* same page as we're writing to, without it being marked
* up-to-date.
*/
fault_in_pages_readable(buf, bytes);
maxlen = cur_iov->iov_len - iov_base;
if (maxlen > bytes)
maxlen = bytes;
fault_in_pages_readable(buf, maxlen);
page = __grab_cache_page(mapping,index,&cached_page,&lru_pvec);
if (!page) {
......@@ -2024,6 +2028,8 @@ generic_file_buffered_write(struct kiocb *iocb, const struct iovec *iov,
filemap_set_next_iovec(&cur_iov,
&iov_base, status);
buf = cur_iov->iov_base + iov_base;
} else {
iov_base += status;
}
}
}
......
net/ipv4/ipvs/Makefile
浏览文件 @ 26abd53d
......@@ -11,7 +11,7 @@ ip_vs_proto-objs-$(CONFIG_IP_VS_PROTO_AH) += ip_vs_proto_ah.o
ip_vs-objs := ip_vs_conn.o ip_vs_core.o ip_vs_ctl.o ip_vs_sched.o \
ip_vs_xmit.o ip_vs_app.o ip_vs_sync.o \
ip_vs_est.o ip_vs_proto.o ip_vs_proto_icmp.o \
ip_vs_est.o ip_vs_proto.o \
$(ip_vs_proto-objs-y)
......
net/ipv4/ipvs/ip_vs_proto.c
浏览文件 @ 26abd53d
......@@ -216,9 +216,6 @@ int ip_vs_protocol_init(void)
#ifdef CONFIG_IP_VS_PROTO_UDP
REGISTER_PROTOCOL(&ip_vs_protocol_udp);
#endif
#ifdef CONFIG_IP_VS_PROTO_ICMP
REGISTER_PROTOCOL(&ip_vs_protocol_icmp);
#endif
#ifdef CONFIG_IP_VS_PROTO_AH
REGISTER_PROTOCOL(&ip_vs_protocol_ah);
#endif
......
net/ipv4/ipvs/ip_vs_proto_icmp.c 已删除 100644 → 0
浏览文件 @ ff89bf3b
此差异已折叠。
net/ipv6/ipv6_syms.c
浏览文件 @ 26abd53d
......@@ -37,5 +37,4 @@ EXPORT_SYMBOL(in6_dev_finish_destroy);
EXPORT_SYMBOL(xfrm6_rcv);
#endif
EXPORT_SYMBOL(rt6_lookup);
EXPORT_SYMBOL(fl6_sock_lookup);
EXPORT_SYMBOL(ipv6_push_nfrag_opts);
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