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Merge branch 'core/percpu' into x86/paravirt

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This commit is contained in:
H. Peter Anvin 2009-02-04 16:58:26 -08:00
commit 327641da8e
68 changed files with 588 additions and 312 deletions
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6
Documentation/block/biodoc.txt
View File

@ -954,14 +954,14 @@ elevator_allow_merge_fn called whenever the block layer determines
results in some sort of conflict internally,
this hook allows it to do that.
elevator_dispatch_fn fills the dispatch queue with ready requests.
elevator_dispatch_fn* fills the dispatch queue with ready requests.
I/O schedulers are free to postpone requests by
not filling the dispatch queue unless @force
is non-zero. Once dispatched, I/O schedulers
are not allowed to manipulate the requests -
they belong to generic dispatch queue.
elevator_add_req_fn called to add a new request into the scheduler
elevator_add_req_fn* called to add a new request into the scheduler
elevator_queue_empty_fn returns true if the merge queue is empty.
Drivers shouldn't use this, but rather check
@ -991,7 +991,7 @@ elevator_activate_req_fn Called when device driver first sees a request.
elevator_deactivate_req_fn Called when device driver decides to delay
a request by requeueing it.
elevator_init_fn
elevator_init_fn*
elevator_exit_fn Allocate and free any elevator specific storage
for a queue.

25
Documentation/networking/alias.txt
View File

@ -2,14 +2,14 @@
IP-Aliasing:
============
IP-aliases are additional IP-addresses/masks hooked up to a base
interface by adding a colon and a string when running ifconfig.
IP-aliases are an obsolete way to manage multiple IP-addresses/masks
per interface. Newer tools such as iproute2 support multiple
address/prefixes per interface, but aliases are still supported
for backwards compatibility.
An alias is formed by adding a colon and a string when running ifconfig.
This string is usually numeric, but this is not a must.
IP-Aliases are avail if CONFIG_INET (`standard' IPv4 networking)
is configured in the kernel.
o Alias creation.
Alias creation is done by 'magic' interface naming: eg. to create a
200.1.1.1 alias for eth0 ...
@ -38,16 +38,3 @@ o Relationship with main device
If the base device is shut down the added aliases will be deleted
too.
Contact
-------
Please finger or e-mail me:
Juan Jose Ciarlante <jjciarla@raiz.uncu.edu.ar>
Updated by Erik Schoenfelder <schoenfr@gaertner.DE>
; local variables:
; mode: indented-text
; mode: auto-fill
; end:

2
MAINTAINERS
View File

@ -2836,8 +2836,6 @@ S: Maintained
MAC80211
P: Johannes Berg
M: johannes@sipsolutions.net
P: Michael Wu
M: flamingice@sourmilk.net
L: linux-wireless@vger.kernel.org
W: http://linuxwireless.org/
T: git kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6.git

3
arch/x86/include/asm/processor.h
View File

@ -768,7 +768,8 @@ extern int sysenter_setup(void);
extern struct desc_ptr early_gdt_descr;
extern void cpu_set_gdt(int);
extern void switch_to_new_gdt(void);
extern void switch_to_new_gdt(int);
extern void load_percpu_segment(int);
extern void cpu_init(void);
static inline unsigned long get_debugctlmsr(void)

29
arch/x86/kernel/cpu/common.c
View File

@ -253,17 +253,8 @@ static char __cpuinit *table_lookup_model(struct cpuinfo_x86 *c)
__u32 cleared_cpu_caps[NCAPINTS] __cpuinitdata;
/* Current gdt points %fs at the "master" per-cpu area: after this,
* it's on the real one. */
void switch_to_new_gdt(void)
void load_percpu_segment(int cpu)
{
struct desc_ptr gdt_descr;
int cpu = smp_processor_id();
gdt_descr.address = (long)get_cpu_gdt_table(cpu);
gdt_descr.size = GDT_SIZE - 1;
load_gdt(&gdt_descr);
/* Reload the per-cpu base */
#ifdef CONFIG_X86_32
loadsegment(fs, __KERNEL_PERCPU);
#else
@ -272,6 +263,20 @@ void switch_to_new_gdt(void)
#endif
}
/* Current gdt points %fs at the "master" per-cpu area: after this,
* it's on the real one. */
void switch_to_new_gdt(int cpu)
{
struct desc_ptr gdt_descr;
gdt_descr.address = (long)get_cpu_gdt_table(cpu);
gdt_descr.size = GDT_SIZE - 1;
load_gdt(&gdt_descr);
/* Reload the per-cpu base */
load_percpu_segment(cpu);
}
static struct cpu_dev *cpu_devs[X86_VENDOR_NUM] = {};
static void __cpuinit default_init(struct cpuinfo_x86 *c)
@ -993,7 +998,7 @@ void __cpuinit cpu_init(void)
* and set up the GDT descriptor:
*/
switch_to_new_gdt();
switch_to_new_gdt(cpu);
loadsegment(fs, 0);
load_idt((const struct desc_ptr *)&idt_descr);
@ -1098,7 +1103,7 @@ void __cpuinit cpu_init(void)
clear_in_cr4(X86_CR4_VME|X86_CR4_PVI|X86_CR4_TSD|X86_CR4_DE);
load_idt(&idt_descr);
switch_to_new_gdt();
switch_to_new_gdt(cpu);
/*
* Set up and load the per-CPU TSS and LDT

2
arch/x86/kernel/setup_percpu.c
View File

@ -122,7 +122,7 @@ void __init setup_per_cpu_areas(void)
* area. Reload any changed state for the boot CPU.
*/
if (cpu == boot_cpu_id)
switch_to_new_gdt();
switch_to_new_gdt(cpu);
DBG("PERCPU: cpu %4d %p\n", cpu, ptr);
}

2
arch/x86/kernel/smpboot.c
View File

@ -1185,7 +1185,7 @@ out:
void __init native_smp_prepare_boot_cpu(void)
{
int me = smp_processor_id();
switch_to_new_gdt();
switch_to_new_gdt(me);
/* already set me in cpu_online_mask in boot_cpu_init() */
cpumask_set_cpu(me, cpu_callout_mask);
per_cpu(cpu_state, me) = CPU_ONLINE;

2
arch/x86/kernel/tlb_uv.c
View File

@ -259,7 +259,7 @@ const struct cpumask *uv_flush_send_and_wait(int cpu, int this_blade,
* the cpu's, all of which are still in the mask.
*/
__get_cpu_var(ptcstats).ptc_i++;
return 0;
return flush_mask;
}
/*

5
arch/x86/kernel/vmlinux_64.lds.S
View File

@ -22,6 +22,7 @@ PHDRS {
#ifdef CONFIG_SMP
percpu PT_LOAD FLAGS(7); /* RWE */
#endif
data.init2 PT_LOAD FLAGS(7); /* RWE */
note PT_NOTE FLAGS(0); /* ___ */
}
SECTIONS
@ -215,7 +216,7 @@ SECTIONS
/*
* percpu offsets are zero-based on SMP. PERCPU_VADDR() changes the
* output PHDR, so the next output section - __data_nosave - should
* switch it back to data.init. Also, pda should be at the head of
* start another section data.init2. Also, pda should be at the head of
* percpu area. Preallocate it and define the percpu offset symbol
* so that it can be accessed as a percpu variable.
*/
@ -232,7 +233,7 @@ SECTIONS
__nosave_begin = .;
.data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) {
*(.data.nosave)
} :data.init /* switch back to data.init, see PERCPU_VADDR() above */
} :data.init2 /* use another section data.init2, see PERCPU_VADDR() above */
. = ALIGN(PAGE_SIZE);
__nosave_end = .;

11
arch/x86/mach-voyager/voyager_smp.c
View File

@ -1746,12 +1746,13 @@ static void __init voyager_smp_prepare_cpus(unsigned int max_cpus)
static void __cpuinit voyager_smp_prepare_boot_cpu(void)
{
switch_to_new_gdt();
int cpu = smp_processor_id();
switch_to_new_gdt(cpu);
cpu_set(smp_processor_id(), cpu_online_map);
cpu_set(smp_processor_id(), cpu_callout_map);
cpu_set(smp_processor_id(), cpu_possible_map);
cpu_set(smp_processor_id(), cpu_present_map);
cpu_set(cpu, cpu_online_map);
cpu_set(cpu, cpu_callout_map);
cpu_set(cpu, cpu_possible_map);
cpu_set(cpu, cpu_present_map);
}
static int __cpuinit voyager_cpu_up(unsigned int cpu)

3
arch/x86/xen/enlighten.c
View File

@ -917,6 +917,9 @@ asmlinkage void __init xen_start_kernel(void)
have_vcpu_info_placement = 0;
#endif
/* setup percpu state */
load_percpu_segment(0);
xen_smp_init();
/* Get mfn list */

5
arch/x86/xen/smp.c
View File

@ -170,7 +170,8 @@ static void __init xen_smp_prepare_boot_cpu(void)
/* We've switched to the "real" per-cpu gdt, so make sure the
old memory can be recycled */
make_lowmem_page_readwrite(&per_cpu_var(gdt_page));
make_lowmem_page_readwrite(__per_cpu_load +
(unsigned long)&per_cpu_var(gdt_page));
xen_setup_vcpu_info_placement();
}
@ -235,6 +236,8 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
ctxt->user_regs.ss = __KERNEL_DS;
#ifdef CONFIG_X86_32
ctxt->user_regs.fs = __KERNEL_PERCPU;
#else
ctxt->gs_base_kernel = per_cpu_offset(cpu);
#endif
ctxt->user_regs.eip = (unsigned long)cpu_bringup_and_idle;
ctxt->user_regs.eflags = 0x1000; /* IOPL_RING1 */

2
block/blk-barrier.c
View File

@ -302,7 +302,7 @@ static void bio_end_empty_barrier(struct bio *bio, int err)
* Description:
* Issue a flush for the block device in question. Caller can supply
* room for storing the error offset in case of a flush error, if they
* wish to. Caller must run wait_for_completion() on its own.
* wish to.
*/
int blkdev_issue_flush(struct block_device *bdev, sector_t *error_sector)
{

100
block/blk-core.c
View File

@ -64,11 +64,12 @@ static struct workqueue_struct *kblockd_workqueue;
static void drive_stat_acct(struct request *rq, int new_io)
{
struct gendisk *disk = rq->rq_disk;
struct hd_struct *part;
int rw = rq_data_dir(rq);
int cpu;
if (!blk_fs_request(rq) || !rq->rq_disk)
if (!blk_fs_request(rq) || !disk || !blk_queue_io_stat(disk->queue))
return;
cpu = part_stat_lock();
@ -599,8 +600,7 @@ blk_init_queue_node(request_fn_proc *rfn, spinlock_t *lock, int node_id)
q->request_fn = rfn;
q->prep_rq_fn = NULL;
q->unplug_fn = generic_unplug_device;
q->queue_flags = (1 << QUEUE_FLAG_CLUSTER |
1 << QUEUE_FLAG_STACKABLE);
q->queue_flags = QUEUE_FLAG_DEFAULT;
q->queue_lock = lock;
blk_queue_segment_boundary(q, BLK_SEG_BOUNDARY_MASK);
@ -1125,6 +1125,8 @@ void init_request_from_bio(struct request *req, struct bio *bio)
if (bio_sync(bio))
req->cmd_flags |= REQ_RW_SYNC;
if (bio_unplug(bio))
req->cmd_flags |= REQ_UNPLUG;
if (bio_rw_meta(bio))
req->cmd_flags |= REQ_RW_META;
@ -1141,6 +1143,7 @@ static int __make_request(struct request_queue *q, struct bio *bio)
int el_ret, nr_sectors;
const unsigned short prio = bio_prio(bio);
const int sync = bio_sync(bio);
const int unplug = bio_unplug(bio);
int rw_flags;
nr_sectors = bio_sectors(bio);
@ -1244,7 +1247,7 @@ get_rq:
blk_plug_device(q);
add_request(q, req);
out:
if (sync || blk_queue_nonrot(q))
if (unplug || blk_queue_nonrot(q))
__generic_unplug_device(q);
spin_unlock_irq(q->queue_lock);
return 0;
@ -1448,6 +1451,11 @@ static inline void __generic_make_request(struct bio *bio)
err = -EOPNOTSUPP;
goto end_io;
}
if (bio_barrier(bio) && bio_has_data(bio) &&
(q->next_ordered == QUEUE_ORDERED_NONE)) {
err = -EOPNOTSUPP;
goto end_io;
}
ret = q->make_request_fn(q, bio);
} while (ret);
@ -1655,6 +1663,55 @@ void blkdev_dequeue_request(struct request *req)
}
EXPORT_SYMBOL(blkdev_dequeue_request);
static void blk_account_io_completion(struct request *req, unsigned int bytes)
{
struct gendisk *disk = req->rq_disk;
if (!disk || !blk_queue_io_stat(disk->queue))
return;
if (blk_fs_request(req)) {
const int rw = rq_data_dir(req);
struct hd_struct *part;
int cpu;
cpu = part_stat_lock();
part = disk_map_sector_rcu(req->rq_disk, req->sector);
part_stat_add(cpu, part, sectors[rw], bytes >> 9);
part_stat_unlock();
}
}
static void blk_account_io_done(struct request *req)
{
struct gendisk *disk = req->rq_disk;
if (!disk || !blk_queue_io_stat(disk->queue))
return;
/*
* Account IO completion. bar_rq isn't accounted as a normal
* IO on queueing nor completion. Accounting the containing
* request is enough.
*/
if (blk_fs_request(req) && req != &req->q->bar_rq) {
unsigned long duration = jiffies - req->start_time;
const int rw = rq_data_dir(req);
struct hd_struct *part;
int cpu;
cpu = part_stat_lock();
part = disk_map_sector_rcu(disk, req->sector);
part_stat_inc(cpu, part, ios[rw]);
part_stat_add(cpu, part, ticks[rw], duration);
part_round_stats(cpu, part);
part_dec_in_flight(part);
part_stat_unlock();
}
}
/**
* __end_that_request_first - end I/O on a request
* @req: the request being processed
@ -1690,16 +1747,7 @@ static int __end_that_request_first(struct request *req, int error,
(unsigned long long)req->sector);
}
if (blk_fs_request(req) && req->rq_disk) {
const int rw = rq_data_dir(req);
struct hd_struct *part;
int cpu;
cpu = part_stat_lock();
part = disk_map_sector_rcu(req->rq_disk, req->sector);
part_stat_add(cpu, part, sectors[rw], nr_bytes >> 9);
part_stat_unlock();
}
blk_account_io_completion(req, nr_bytes);
total_bytes = bio_nbytes = 0;
while ((bio = req->bio) != NULL) {
@ -1779,8 +1827,6 @@ static int __end_that_request_first(struct request *req, int error,
*/
static void end_that_request_last(struct request *req, int error)
{
struct gendisk *disk = req->rq_disk;
if (blk_rq_tagged(req))
blk_queue_end_tag(req->q, req);
@ -1792,27 +1838,7 @@ static void end_that_request_last(struct request *req, int error)
blk_delete_timer(req);
/*
* Account IO completion. bar_rq isn't accounted as a normal
* IO on queueing nor completion. Accounting the containing
* request is enough.
*/
if (disk && blk_fs_request(req) && req != &req->q->bar_rq) {
unsigned long duration = jiffies - req->start_time;
const int rw = rq_data_dir(req);
struct hd_struct *part;
int cpu;
cpu = part_stat_lock();
part = disk_map_sector_rcu(disk, req->sector);
part_stat_inc(cpu, part, ios[rw]);
part_stat_add(cpu, part, ticks[rw], duration);
part_round_stats(cpu, part);
part_dec_in_flight(part);
part_stat_unlock();
}
blk_account_io_done(req);
if (req->end_io)
req->end_io(req, error);

9
block/blk-integrity.c
View File

@ -309,20 +309,20 @@ static struct kobj_type integrity_ktype = {
/**
* blk_integrity_register - Register a gendisk as being integrity-capable
* @disk: struct gendisk pointer to make integrity-aware
* @template: integrity profile
* @template: optional integrity profile to register
*
* Description: When a device needs to advertise itself as being able
* to send/receive integrity metadata it must use this function to
* register the capability with the block layer. The template is a
* blk_integrity struct with values appropriate for the underlying
* hardware. See Documentation/block/data-integrity.txt.
* hardware. If template is NULL the new profile is allocated but
* not filled out. See Documentation/block/data-integrity.txt.
*/
int blk_integrity_register(struct gendisk *disk, struct blk_integrity *template)
{
struct blk_integrity *bi;
BUG_ON(disk == NULL);
BUG_ON(template == NULL);
if (disk->integrity == NULL) {
bi = kmem_cache_alloc(integrity_cachep,
@ -346,6 +346,7 @@ int blk_integrity_register(struct gendisk *disk, struct blk_integrity *template)
bi = disk->integrity;
/* Use the provided profile as template */
if (template != NULL) {
bi->name = template->name;
bi->generate_fn = template->generate_fn;
bi->verify_fn = template->verify_fn;
@ -353,6 +354,8 @@ int blk_integrity_register(struct gendisk *disk, struct blk_integrity *template)
bi->set_tag_fn = template->set_tag_fn;
bi->get_tag_fn = template->get_tag_fn;
bi->tag_size = template->tag_size;
} else
bi->name = "unsupported";
return 0;
}

58
block/blk-sysfs.c
View File

@ -130,6 +130,27 @@ static ssize_t queue_max_hw_sectors_show(struct request_queue *q, char *page)
return queue_var_show(max_hw_sectors_kb, (page));
}
static ssize_t queue_nonrot_show(struct request_queue *q, char *page)
{
return queue_var_show(!blk_queue_nonrot(q), page);
}
static ssize_t queue_nonrot_store(struct request_queue *q, const char *page,
size_t count)
{
unsigned long nm;
ssize_t ret = queue_var_store(&nm, page, count);
spin_lock_irq(q->queue_lock);
if (nm)
queue_flag_clear(QUEUE_FLAG_NONROT, q);
else
queue_flag_set(QUEUE_FLAG_NONROT, q);
spin_unlock_irq(q->queue_lock);
return ret;
}
static ssize_t queue_nomerges_show(struct request_queue *q, char *page)
{
return queue_var_show(blk_queue_nomerges(q), page);
@ -146,8 +167,8 @@ static ssize_t queue_nomerges_store(struct request_queue *q, const char *page,
queue_flag_set(QUEUE_FLAG_NOMERGES, q);
else
queue_flag_clear(QUEUE_FLAG_NOMERGES, q);
spin_unlock_irq(q->queue_lock);
return ret;
}
@ -176,6 +197,27 @@ queue_rq_affinity_store(struct request_queue *q, const char *page, size_t count)
return ret;
}
static ssize_t queue_iostats_show(struct request_queue *q, char *page)
{
return queue_var_show(blk_queue_io_stat(q), page);
}
static ssize_t queue_iostats_store(struct request_queue *q, const char *page,
size_t count)
{
unsigned long stats;
ssize_t ret = queue_var_store(&stats, page, count);
spin_lock_irq(q->queue_lock);
if (stats)
queue_flag_set(QUEUE_FLAG_IO_STAT, q);
else
queue_flag_clear(QUEUE_FLAG_IO_STAT, q);
spin_unlock_irq(q->queue_lock);
return ret;
}
static struct queue_sysfs_entry queue_requests_entry = {
.attr = {.name = "nr_requests", .mode = S_IRUGO | S_IWUSR },
.show = queue_requests_show,
@ -210,6 +252,12 @@ static struct queue_sysfs_entry queue_hw_sector_size_entry = {
.show = queue_hw_sector_size_show,
};
static struct queue_sysfs_entry queue_nonrot_entry = {
.attr = {.name = "rotational", .mode = S_IRUGO | S_IWUSR },
.show = queue_nonrot_show,
.store = queue_nonrot_store,
};
static struct queue_sysfs_entry queue_nomerges_entry = {
.attr = {.name = "nomerges", .mode = S_IRUGO | S_IWUSR },
.show = queue_nomerges_show,
@ -222,6 +270,12 @@ static struct queue_sysfs_entry queue_rq_affinity_entry = {
.store = queue_rq_affinity_store,
};
static struct queue_sysfs_entry queue_iostats_entry = {
.attr = {.name = "iostats", .mode = S_IRUGO | S_IWUSR },
.show = queue_iostats_show,
.store = queue_iostats_store,
};
static struct attribute *default_attrs[] = {
&queue_requests_entry.attr,
&queue_ra_entry.attr,
@ -229,8 +283,10 @@ static struct attribute *default_attrs[] = {
&queue_max_sectors_entry.attr,
&queue_iosched_entry.attr,
&queue_hw_sector_size_entry.attr,
&queue_nonrot_entry.attr,
&queue_nomerges_entry.attr,
&queue_rq_affinity_entry.attr,
&queue_iostats_entry.attr,
NULL,
};

72
block/blktrace.c
View File

@ -187,59 +187,12 @@ static void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes,
static struct dentry *blk_tree_root;
static DEFINE_MUTEX(blk_tree_mutex);
static unsigned int root_users;
static inline void blk_remove_root(void)
{
if (blk_tree_root) {
debugfs_remove(blk_tree_root);
blk_tree_root = NULL;
}
}
static void blk_remove_tree(struct dentry *dir)
{
mutex_lock(&blk_tree_mutex);
debugfs_remove(dir);
if (--root_users == 0)
blk_remove_root();
mutex_unlock(&blk_tree_mutex);
}
static struct dentry *blk_create_tree(const char *blk_name)
{
struct dentry *dir = NULL;
int created = 0;
mutex_lock(&blk_tree_mutex);
if (!blk_tree_root) {
blk_tree_root = debugfs_create_dir("block", NULL);
if (!blk_tree_root)
goto err;
created = 1;
}
dir = debugfs_create_dir(blk_name, blk_tree_root);
if (dir)
root_users++;
else {
/* Delete root only if we created it */
if (created)
blk_remove_root();
}
err:
mutex_unlock(&blk_tree_mutex);
return dir;
}
static void blk_trace_cleanup(struct blk_trace *bt)
{
relay_close(bt->rchan);
debugfs_remove(bt->msg_file);
debugfs_remove(bt->dropped_file);
blk_remove_tree(bt->dir);
relay_close(bt->rchan);
free_percpu(bt->sequence);
free_percpu(bt->msg_data);
kfree(bt);
@ -346,7 +299,18 @@ static int blk_subbuf_start_callback(struct rchan_buf *buf, void *subbuf,
static int blk_remove_buf_file_callback(struct dentry *dentry)
{
struct dentry *parent = dentry->d_parent;
debugfs_remove(dentry);
/*
* this will fail for all but the last file, but that is ok. what we
* care about is the top level buts->name directory going away, when
* the last trace file is gone. Then we don't have to rmdir() that
* manually on trace stop, so it nicely solves the issue with
* force killing of running traces.
*/
debugfs_remove(parent);
return 0;
}
@ -404,7 +368,15 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
goto err;
ret = -ENOENT;
dir = blk_create_tree(buts->name);
if (!blk_tree_root) {
blk_tree_root = debugfs_create_dir("block", NULL);
if (!blk_tree_root)
return -ENOMEM;
}
dir = debugfs_create_dir(buts->name, blk_tree_root);
if (!dir)
goto err;
@ -458,8 +430,6 @@ probe_err:
atomic_dec(&blk_probes_ref);
mutex_unlock(&blk_probe_mutex);
err:
if (dir)
blk_remove_tree(dir);
if (bt) {
if (bt->msg_file)
debugfs_remove(bt->msg_file);

39
block/cfq-iosched.c
View File

@ -84,6 +84,11 @@ struct cfq_data {
*/
struct cfq_rb_root service_tree;
unsigned int busy_queues;
/*
* Used to track any pending rt requests so we can pre-empt current
* non-RT cfqq in service when this value is non-zero.
*/
unsigned int busy_rt_queues;
int rq_in_driver;
int sync_flight;
@ -562,6 +567,8 @@ static void cfq_add_cfqq_rr(struct cfq_data *cfqd, struct cfq_queue *cfqq)
BUG_ON(cfq_cfqq_on_rr(cfqq));
cfq_mark_cfqq_on_rr(cfqq);
cfqd->busy_queues++;
if (cfq_class_rt(cfqq))
cfqd->busy_rt_queues++;
cfq_resort_rr_list(cfqd, cfqq);
}
@ -581,6 +588,8 @@ static void cfq_del_cfqq_rr(struct cfq_data *cfqd, struct cfq_queue *cfqq)
BUG_ON(!cfqd->busy_queues);
cfqd->busy_queues--;
if (cfq_class_rt(cfqq))
cfqd->busy_rt_queues--;
}
/*
@ -1004,6 +1013,20 @@ static struct cfq_queue *cfq_select_queue(struct cfq_data *cfqd)
if (cfq_slice_used(cfqq))
goto expire;
/*
* If we have a RT cfqq waiting, then we pre-empt the current non-rt
* cfqq.
*/
if (!cfq_class_rt(cfqq) && cfqd->busy_rt_queues) {
/*
* We simulate this as cfqq timed out so that it gets to bank
* the remaining of its time slice.
*/
cfq_log_cfqq(cfqd, cfqq, "preempt");
cfq_slice_expired(cfqd, 1);
goto new_queue;
}
/*
* The active queue has requests and isn't expired, allow it to
* dispatch.
@ -1067,6 +1090,13 @@ __cfq_dispatch_requests(struct cfq_data *cfqd, struct cfq_queue *cfqq,
if (RB_EMPTY_ROOT(&cfqq->sort_list))
break;
/*
* If there is a non-empty RT cfqq waiting for current
* cfqq's timeslice to complete, pre-empt this cfqq
*/
if (!cfq_class_rt(cfqq) && cfqd->busy_rt_queues)
break;
} while (dispatched < max_dispatch);
/*
@ -1801,6 +1831,12 @@ cfq_should_preempt(struct cfq_data *cfqd, struct cfq_queue *new_cfqq,
if (rq_is_meta(rq) && !cfqq->meta_pending)
return 1;
/*
* Allow an RT request to pre-empt an ongoing non-RT cfqq timeslice.
*/
if (cfq_class_rt(new_cfqq) && !cfq_class_rt(cfqq))
return 1;
if (!cfqd->active_cic || !cfq_cfqq_wait_request(cfqq))
return 0;
@ -1870,7 +1906,8 @@ cfq_rq_enqueued(struct cfq_data *cfqd, struct cfq_queue *cfqq,
/*
* not the active queue - expire current slice if it is
* idle and has expired it's mean thinktime or this new queue
* has some old slice time left and is of higher priority
* has some old slice time left and is of higher priority or
* this new queue is RT and the current one is BE
*/
cfq_preempt_queue(cfqd, cfqq);
cfq_mark_cfqq_must_dispatch(cfqq);

4
drivers/net/e1000/e1000_main.c
View File

@ -31,7 +31,7 @@
char e1000_driver_name[] = "e1000";
static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver";
#define DRV_VERSION "7.3.20-k3-NAPI"
#define DRV_VERSION "7.3.21-k3-NAPI"
const char e1000_driver_version[] = DRV_VERSION;
static const char e1000_copyright[] = "Copyright (c) 1999-2006 Intel Corporation.";
@ -3712,7 +3712,7 @@ static irqreturn_t e1000_intr(int irq, void *data)
struct e1000_hw *hw = &adapter->hw;
u32 rctl, icr = er32(ICR);
if (unlikely(!icr))
if (unlikely((!icr) || test_bit(__E1000_RESETTING, &adapter->flags)))
return IRQ_NONE; /* Not our interrupt */
/* IMS will not auto-mask if INT_ASSERTED is not set, and if it is

2
drivers/net/gianfar_mii.c
View File

@ -234,6 +234,8 @@ static int gfar_mdio_probe(struct of_device *ofdev,
if (NULL == new_bus)
return -ENOMEM;
device_init_wakeup(&ofdev->dev, 1);
new_bus->name = "Gianfar MII Bus",
new_bus->read = &gfar_mdio_read,
new_bus->write = &gfar_mdio_write,

2
drivers/net/netxen/netxen_nic.h
View File

@ -210,7 +210,7 @@
#define MAX_CMD_DESCRIPTORS_HOST 1024
#define MAX_RCV_DESCRIPTORS_1G 2048
#define MAX_RCV_DESCRIPTORS_10G 4096
#define MAX_JUMBO_RCV_DESCRIPTORS 512
#define MAX_JUMBO_RCV_DESCRIPTORS 1024
#define MAX_LRO_RCV_DESCRIPTORS 8
#define MAX_RCVSTATUS_DESCRIPTORS MAX_RCV_DESCRIPTORS
#define MAX_JUMBO_RCV_DESC MAX_JUMBO_RCV_DESCRIPTORS

4
drivers/net/netxen/netxen_nic_init.c
View File

@ -947,8 +947,10 @@ int netxen_pinit_from_rom(struct netxen_adapter *adapter, int verbose)
}
for (i = 0; i < n; i++) {
if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0)
netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
kfree(buf);
return -EIO;
}
buf[i].addr = addr;
buf[i].data = val;

1
drivers/net/r6040.c
View File

@ -438,7 +438,6 @@ static void r6040_down(struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->base;
struct pci_dev *pdev = lp->pdev;
int limit = 2048;
u16 *adrp;
u16 cmd;

4
drivers/net/skfp/skfddi.c
View File

@ -1003,9 +1003,9 @@ static int skfp_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
break;
case SKFP_CLR_STATS: /* Zero out the driver statistics */
if (!capable(CAP_NET_ADMIN)) {
memset(&lp->MacStat, 0, sizeof(lp->MacStat));
} else {
status = -EPERM;
} else {
memset(&lp->MacStat, 0, sizeof(lp->MacStat));
}
break;
default:

2
drivers/net/smsc911x.c
View File

@ -953,7 +953,7 @@ smsc911x_rx_fastforward(struct smsc911x_data *pdata, unsigned int pktbytes)
do {
udelay(1);
val = smsc911x_reg_read(pdata, RX_DP_CTRL);
} while (timeout-- && (val & RX_DP_CTRL_RX_FFWD_));
} while (--timeout && (val & RX_DP_CTRL_RX_FFWD_));
if (unlikely(timeout == 0))
SMSC_WARNING(HW, "Timed out waiting for "

3
drivers/net/smsc9420.c
View File

@ -1378,6 +1378,7 @@ static int smsc9420_open(struct net_device *dev)
/* test the IRQ connection to the ISR */
smsc_dbg(IFUP, "Testing ISR using IRQ %d", dev->irq);
pd->software_irq_signal = false;
spin_lock_irqsave(&pd->int_lock, flags);
/* configure interrupt deassertion timer and enable interrupts */
@ -1393,8 +1394,6 @@ static int smsc9420_open(struct net_device *dev)
smsc9420_pci_flush_write(pd);
timeout = 1000;
pd->software_irq_signal = false;
smp_wmb();
while (timeout--) {
if (pd->software_irq_signal)
break;

23
drivers/net/tulip/21142.c
View File

@ -9,6 +9,11 @@
Please refer to Documentation/DocBook/tulip-user.{pdf,ps,html}
for more information on this driver.
DC21143 manual "21143 PCI/CardBus 10/100Mb/s Ethernet LAN Controller
Hardware Reference Manual" is currently available at :
http://developer.intel.com/design/network/manuals/278074.htm
Please submit bugs to http://bugzilla.kernel.org/ .
*/
@ -32,7 +37,11 @@ void t21142_media_task(struct work_struct *work)
int csr12 = ioread32(ioaddr + CSR12);
int next_tick = 60*HZ;
int new_csr6 = 0;
int csr14 = ioread32(ioaddr + CSR14);
/* CSR12[LS10,LS100] are not reliable during autonegotiation */
if ((csr14 & 0x80) && (csr12 & 0x7000) != 0x5000)
csr12 |= 6;
if (tulip_debug > 2)
printk(KERN_INFO"%s: 21143 negotiation status %8.8x, %s.\n",
dev->name, csr12, medianame[dev->if_port]);
@ -76,7 +85,7 @@ void t21142_media_task(struct work_struct *work)
new_csr6 = 0x83860000;
dev->if_port = 3;
iowrite32(0, ioaddr + CSR13);
iowrite32(0x0003FF7F, ioaddr + CSR14);
iowrite32(0x0003FFFF, ioaddr + CSR14);
iowrite16(8, ioaddr + CSR15);
iowrite32(1, ioaddr + CSR13);
}
@ -132,10 +141,14 @@ void t21142_lnk_change(struct net_device *dev, int csr5)
struct tulip_private *tp = netdev_priv(dev);
void __iomem *ioaddr = tp->base_addr;
int csr12 = ioread32(ioaddr + CSR12);
int csr14 = ioread32(ioaddr + CSR14);
/* CSR12[LS10,LS100] are not reliable during autonegotiation */
if ((csr14 & 0x80) && (csr12 & 0x7000) != 0x5000)
csr12 |= 6;
if (tulip_debug > 1)
printk(KERN_INFO"%s: 21143 link status interrupt %8.8x, CSR5 %x, "
"%8.8x.\n", dev->name, csr12, csr5, ioread32(ioaddr + CSR14));
"%8.8x.\n", dev->name, csr12, csr5, csr14);
/* If NWay finished and we have a negotiated partner capability. */
if (tp->nway && !tp->nwayset && (csr12 & 0x7000) == 0x5000) {
@ -143,7 +156,9 @@ void t21142_lnk_change(struct net_device *dev, int csr5)
int negotiated = tp->sym_advertise & (csr12 >> 16);
tp->lpar = csr12 >> 16;
tp->nwayset = 1;
if (negotiated & 0x0100) dev->if_port = 5;
/* If partner cannot negotiate, it is 10Mbps Half Duplex */
if (!(csr12 & 0x8000)) dev->if_port = 0;
else if (negotiated & 0x0100) dev->if_port = 5;
else if (negotiated & 0x0080) dev->if_port = 3;
else if (negotiated & 0x0040) dev->if_port = 4;
else if (negotiated & 0x0020) dev->if_port = 0;
@ -214,7 +229,7 @@ void t21142_lnk_change(struct net_device *dev, int csr5)
tp->timer.expires = RUN_AT(3*HZ);
add_timer(&tp->timer);
} else if (dev->if_port == 5)
iowrite32(ioread32(ioaddr + CSR14) & ~0x080, ioaddr + CSR14);
iowrite32(csr14 & ~0x080, ioaddr + CSR14);
} else if (dev->if_port == 0 || dev->if_port == 4) {
if ((csr12 & 4) == 0)
printk(KERN_INFO"%s: 21143 10baseT link beat good.\n",

20
drivers/net/ucc_geth.c
View File

@ -1536,6 +1536,11 @@ static void adjust_link(struct net_device *dev)
static int init_phy(struct net_device *dev)
{
struct ucc_geth_private *priv = netdev_priv(dev);
struct device_node *np = priv->node;
struct device_node *phy, *mdio;
const phandle *ph;
char bus_name[MII_BUS_ID_SIZE];
const unsigned int *id;
struct phy_device *phydev;
char phy_id[BUS_ID_SIZE];
@ -1543,8 +1548,18 @@ static int init_phy(struct net_device *dev)
priv->oldspeed = 0;
priv->oldduplex = -1;
snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT, priv->ug_info->mdio_bus,
priv->ug_info->phy_address);
ph = of_get_property(np, "phy-handle", NULL);
phy = of_find_node_by_phandle(*ph);
mdio = of_get_parent(phy);
id = of_get_property(phy, "reg", NULL);
of_node_put(phy);
of_node_put(mdio);
uec_mdio_bus_name(bus_name, mdio);
snprintf(phy_id, sizeof(phy_id), "%s:%02x",
bus_name, *id);
phydev = phy_connect(dev, phy_id, &adjust_link, 0, priv->phy_interface);
@ -3748,6 +3763,7 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
ugeth->ug_info = ug_info;
ugeth->dev = dev;
ugeth->node = np;
return 0;
}

2
drivers/net/ucc_geth.h
View File

@ -1186,6 +1186,8 @@ struct ucc_geth_private {
int oldspeed;
int oldduplex;
int oldlink;
struct device_node *node;
};
void uec_set_ethtool_ops(struct net_device *netdev);

12
drivers/net/ucc_geth_mii.c
View File

@ -156,7 +156,7 @@ static int uec_mdio_probe(struct of_device *ofdev, const struct of_device_id *ma
if (err)
goto reg_map_fail;
snprintf(new_bus->id, MII_BUS_ID_SIZE, "%x", res.start);
uec_mdio_bus_name(new_bus->id, np);
new_bus->irq = kmalloc(32 * sizeof(int), GFP_KERNEL);
@ -283,3 +283,13 @@ void uec_mdio_exit(void)
{
of_unregister_platform_driver(&uec_mdio_driver);
}
void uec_mdio_bus_name(char *name, struct device_node *np)
{
const u32 *reg;
reg = of_get_property(np, "reg", NULL);
snprintf(name, MII_BUS_ID_SIZE, "%s@%x", np->name, reg ? *reg : 0);
}

1
drivers/net/ucc_geth_mii.h
View File

@ -97,4 +97,5 @@ int uec_mdio_read(struct mii_bus *bus, int mii_id, int regnum);
int uec_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value);
int __init uec_mdio_init(void);
void uec_mdio_exit(void);
void uec_mdio_bus_name(char *name, struct device_node *np);
#endif /* __UEC_MII_H */

6
drivers/net/virtio_net.c
View File

@ -287,7 +287,7 @@ static void try_fill_recv_maxbufs(struct virtnet_info *vi)
skb_put(skb, MAX_PACKET_LEN);
hdr = skb_vnet_hdr(skb);
sg_init_one(sg, hdr, sizeof(*hdr));
sg_set_buf(sg, hdr, sizeof(*hdr));
if (vi->big_packets) {
for (i = 0; i < MAX_SKB_FRAGS; i++) {
@ -488,9 +488,9 @@ static int xmit_skb(struct virtnet_info *vi, struct sk_buff *skb)
/* Encode metadata header at front. */
if (vi->mergeable_rx_bufs)
sg_init_one(sg, mhdr, sizeof(*mhdr));
sg_set_buf(sg, mhdr, sizeof(*mhdr));
else
sg_init_one(sg, hdr, sizeof(*hdr));
sg_set_buf(sg, hdr, sizeof(*hdr));
num = skb_to_sgvec(skb, sg+1, 0, skb->len) + 1;

14
drivers/net/wimax/i2400m/debugfs.c
View File

@ -234,20 +234,6 @@ struct dentry *debugfs_create_i2400m_reset(
&fops_i2400m_reset);
}
/*
* Debug levels control; see debug.h
*/
struct d_level D_LEVEL[] = {
D_SUBMODULE_DEFINE(control),
D_SUBMODULE_DEFINE(driver),
D_SUBMODULE_DEFINE(debugfs),
D_SUBMODULE_DEFINE(fw),
D_SUBMODULE_DEFINE(netdev),
D_SUBMODULE_DEFINE(rfkill),
D_SUBMODULE_DEFINE(rx),
D_SUBMODULE_DEFINE(tx),
};
size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
#define __debugfs_register(prefix, name, parent) \
do { \

16
drivers/net/wimax/i2400m/driver.c
View File

@ -707,6 +707,22 @@ void i2400m_release(struct i2400m *i2400m)
EXPORT_SYMBOL_GPL(i2400m_release);
/*
* Debug levels control; see debug.h
*/
struct d_level D_LEVEL[] = {
D_SUBMODULE_DEFINE(control),
D_SUBMODULE_DEFINE(driver),
D_SUBMODULE_DEFINE(debugfs),
D_SUBMODULE_DEFINE(fw),
D_SUBMODULE_DEFINE(netdev),
D_SUBMODULE_DEFINE(rfkill),
D_SUBMODULE_DEFINE(rx),
D_SUBMODULE_DEFINE(tx),
};
size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
static
int __init i2400m_driver_init(void)
{

10
drivers/net/wireless/ath5k/base.c
View File

@ -1028,6 +1028,8 @@ ath5k_setup_bands(struct ieee80211_hw *hw)
* it's done by reseting the chip. To accomplish this we must
* first cleanup any pending DMA, then restart stuff after a la
* ath5k_init.
*
* Called with sc->lock.
*/
static int
ath5k_chan_set(struct ath5k_softc *sc, struct ieee80211_channel *chan)
@ -2814,11 +2816,17 @@ ath5k_config(struct ieee80211_hw *hw, u32 changed)
{
struct ath5k_softc *sc = hw->priv;
struct ieee80211_conf *conf = &hw->conf;
int ret;
mutex_lock(&sc->lock);
sc->bintval = conf->beacon_int;
sc->power_level = conf->power_level;
return ath5k_chan_set(sc, conf->channel);
ret = ath5k_chan_set(sc, conf->channel);
mutex_unlock(&sc->lock);
return ret;
}
static int

4
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -1719,6 +1719,10 @@ static int iwl_read_ucode(struct iwl_priv *priv)
priv->ucode_data_backup.len = data_size;
iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
!priv->ucode_data_backup.v_addr)
goto err_pci_alloc;
/* Initialization instructions and data */
if (init_size && init_data_size) {
priv->ucode_init.len = init_size;

10
drivers/net/wireless/rtl818x/rtl8187_rtl8225.c
View File

@ -285,7 +285,10 @@ static void rtl8225_rf_set_tx_power(struct ieee80211_hw *dev, int channel)
ofdm_power = priv->channels[channel - 1].hw_value >> 4;
cck_power = min(cck_power, (u8)11);
ofdm_power = min(ofdm_power, (u8)35);
if (ofdm_power > (u8)15)
ofdm_power = 25;
else
ofdm_power += 10;
rtl818x_iowrite8(priv, &priv->map->TX_GAIN_CCK,
rtl8225_tx_gain_cck_ofdm[cck_power / 6] >> 1);
@ -536,7 +539,10 @@ static void rtl8225z2_rf_set_tx_power(struct ieee80211_hw *dev, int channel)
cck_power += priv->txpwr_base & 0xF;
cck_power = min(cck_power, (u8)35);
ofdm_power = min(ofdm_power, (u8)15);
if (ofdm_power > (u8)15)
ofdm_power = 25;
else
ofdm_power += 10;
ofdm_power += priv->txpwr_base >> 4;
ofdm_power = min(ofdm_power, (u8)35);

6
drivers/serial/jsm/jsm_tty.c
View File

@ -161,6 +161,11 @@ static void jsm_tty_stop_rx(struct uart_port *port)
channel->ch_bd->bd_ops->disable_receiver(channel);
}
static void jsm_tty_enable_ms(struct uart_port *port)
{
/* Nothing needed */
}
static void jsm_tty_break(struct uart_port *port, int break_state)
{
unsigned long lock_flags;
@ -345,6 +350,7 @@ static struct uart_ops jsm_ops = {
.start_tx = jsm_tty_start_tx,
.send_xchar = jsm_tty_send_xchar,
.stop_rx = jsm_tty_stop_rx,
.enable_ms = jsm_tty_enable_ms,
.break_ctl = jsm_tty_break,
.startup = jsm_tty_open,
.shutdown = jsm_tty_close,

26
fs/bio-integrity.c
View File

@ -140,7 +140,6 @@ int bio_integrity_add_page(struct bio *bio, struct page *page,
iv = bip_vec_idx(bip, bip->bip_vcnt);
BUG_ON(iv == NULL);
BUG_ON(iv->bv_page != NULL);
iv->bv_page = page;
iv->bv_len = len;
@ -465,7 +464,7 @@ static int bio_integrity_verify(struct bio *bio)
if (ret) {
kunmap_atomic(kaddr, KM_USER0);
break;
return ret;
}
sectors = bv->bv_len / bi->sector_size;
@ -493,18 +492,13 @@ static void bio_integrity_verify_fn(struct work_struct *work)
struct bio_integrity_payload *bip =
container_of(work, struct bio_integrity_payload, bip_work);
struct bio *bio = bip->bip_bio;
int error = bip->bip_error;
int error;
if (bio_integrity_verify(bio)) {
clear_bit(BIO_UPTODATE, &bio->bi_flags);
error = -EIO;
}
error = bio_integrity_verify(bio);
/* Restore original bio completion handler */
bio->bi_end_io = bip->bip_end_io;
if (bio->bi_end_io)
bio->bi_end_io(bio, error);
bio_endio(bio, error);
}
/**
@ -525,7 +519,17 @@ void bio_integrity_endio(struct bio *bio, int error)
BUG_ON(bip->bip_bio != bio);
bip->bip_error = error;
/* In case of an I/O error there is no point in verifying the
* integrity metadata. Restore original bio end_io handler
* and run it.
*/
if (error) {
bio->bi_end_io = bip->bip_end_io;
bio_endio(bio, error);
return;
}
INIT_WORK(&bip->bip_work, bio_integrity_verify_fn);
queue_work(kintegrityd_wq, &bip->bip_work);
}

7
fs/compat_ioctl.c
View File

@ -538,6 +538,7 @@ static int dev_ifsioc(unsigned int fd, unsigned int cmd, unsigned long arg)
* cannot be fixed without breaking all existing apps.
*/
case TUNSETIFF:
case TUNGETIFF:
case SIOCGIFFLAGS:
case SIOCGIFMETRIC:
case SIOCGIFMTU:
@ -1982,6 +1983,11 @@ COMPATIBLE_IOCTL(TUNSETNOCSUM)
COMPATIBLE_IOCTL(TUNSETDEBUG)
COMPATIBLE_IOCTL(TUNSETPERSIST)
COMPATIBLE_IOCTL(TUNSETOWNER)
COMPATIBLE_IOCTL(TUNSETLINK)
COMPATIBLE_IOCTL(TUNSETGROUP)
COMPATIBLE_IOCTL(TUNGETFEATURES)
COMPATIBLE_IOCTL(TUNSETOFFLOAD)
COMPATIBLE_IOCTL(TUNSETTXFILTER)
/* Big V */
COMPATIBLE_IOCTL(VT_SETMODE)
COMPATIBLE_IOCTL(VT_GETMODE)
@ -2573,6 +2579,7 @@ HANDLE_IOCTL(SIOCGIFPFLAGS, dev_ifsioc)
HANDLE_IOCTL(SIOCGIFTXQLEN, dev_ifsioc)
HANDLE_IOCTL(SIOCSIFTXQLEN, dev_ifsioc)
HANDLE_IOCTL(TUNSETIFF, dev_ifsioc)
HANDLE_IOCTL(TUNGETIFF, dev_ifsioc)
HANDLE_IOCTL(SIOCETHTOOL, ethtool_ioctl)
HANDLE_IOCTL(SIOCBONDENSLAVE, bond_ioctl)
HANDLE_IOCTL(SIOCBONDRELEASE, bond_ioctl)

20
fs/ext3/namei.c
View File

@ -1358,7 +1358,7 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
struct fake_dirent *fde;
blocksize = dir->i_sb->s_blocksize;
dxtrace(printk("Creating index\n"));
dxtrace(printk(KERN_DEBUG "Creating index: inode %lu\n", dir->i_ino));
retval = ext3_journal_get_write_access(handle, bh);
if (retval) {
ext3_std_error(dir->i_sb, retval);
@ -1367,6 +1367,19 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
}
root = (struct dx_root *) bh->b_data;
/* The 0th block becomes the root, move the dirents out */
fde = &root->dotdot;
de = (struct ext3_dir_entry_2 *)((char *)fde +
ext3_rec_len_from_disk(fde->rec_len));
if ((char *) de >= (((char *) root) + blocksize)) {
ext3_error(dir->i_sb, __func__,
"invalid rec_len for '..' in inode %lu",
dir->i_ino);
brelse(bh);
return -EIO;
}
len = ((char *) root) + blocksize - (char *) de;
bh2 = ext3_append (handle, dir, &block, &retval);
if (!(bh2)) {
brelse(bh);
@ -1375,11 +1388,6 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
EXT3_I(dir)->i_flags |= EXT3_INDEX_FL;
data1 = bh2->b_data;
/* The 0th block becomes the root, move the dirents out */
fde = &root->dotdot;
de = (struct ext3_dir_entry_2 *)((char *)fde +
ext3_rec_len_from_disk(fde->rec_len));
len = ((char *) root) + blocksize - (char *) de;
memcpy (data1, de, len);
de = (struct ext3_dir_entry_2 *) data1;
top = data1 + len;

6
fs/ext4/balloc.c
View File

@ -684,15 +684,15 @@ ext4_fsblk_t ext4_count_free_blocks(struct super_block *sb)
gdp = ext4_get_group_desc(sb, i, NULL);
if (!gdp)
continue;
desc_count += le16_to_cpu(gdp->bg_free_blocks_count);
desc_count += ext4_free_blks_count(sb, gdp);
brelse(bitmap_bh);
bitmap_bh = ext4_read_block_bitmap(sb, i);
if (bitmap_bh == NULL)
continue;
x = ext4_count_free(bitmap_bh, sb->s_blocksize);
printk(KERN_DEBUG "group %lu: stored = %d, counted = %u\n",
i, le16_to_cpu(gdp->bg_free_blocks_count), x);
printk(KERN_DEBUG "group %u: stored = %d, counted = %u\n",
i, ext4_free_blks_count(sb, gdp), x);
bitmap_count += x;
}
brelse(bitmap_bh);

3
fs/ext4/ext4.h
View File

@ -1206,8 +1206,11 @@ static inline void ext4_r_blocks_count_set(struct ext4_super_block *es,
static inline loff_t ext4_isize(struct ext4_inode *raw_inode)
{
if (S_ISREG(le16_to_cpu(raw_inode->i_mode)))
return ((loff_t)le32_to_cpu(raw_inode->i_size_high) << 32) |
le32_to_cpu(raw_inode->i_size_lo);
else
return (loff_t) le32_to_cpu(raw_inode->i_size_lo);
}
static inline void ext4_isize_set(struct ext4_inode *raw_inode, loff_t i_size)

2
fs/ext4/extents.c
View File

@ -3048,7 +3048,7 @@ retry:
WARN_ON(ret <= 0);
printk(KERN_ERR "%s: ext4_ext_get_blocks "
"returned error inode#%lu, block=%u, "
"max_blocks=%lu", __func__,
"max_blocks=%u", __func__,
inode->i_ino, block, max_blocks);
#endif
ext4_mark_inode_dirty(handle, inode);

9
fs/ext4/inode.c
View File

@ -360,9 +360,9 @@ static int ext4_block_to_path(struct inode *inode,
final = ptrs;
} else {
ext4_warning(inode->i_sb, "ext4_block_to_path",
"block %lu > max",
"block %lu > max in inode %lu",
i_block + direct_blocks +
indirect_blocks + double_blocks);
indirect_blocks + double_blocks, inode->i_ino);
}
if (boundary)
*boundary = final - 1 - (i_block & (ptrs - 1));
@ -2821,9 +2821,6 @@ static sector_t ext4_bmap(struct address_space *mapping, sector_t block)
filemap_write_and_wait(mapping);
}
BUG_ON(!EXT4_JOURNAL(inode) &&
EXT4_I(inode)->i_state & EXT4_STATE_JDATA);
if (EXT4_JOURNAL(inode) && EXT4_I(inode)->i_state & EXT4_STATE_JDATA) {
/*
* This is a REALLY heavyweight approach, but the use of
@ -3622,7 +3619,7 @@ static void ext4_free_data(handle_t *handle, struct inode *inode,
* block pointed to itself, it would have been detached when
* the block was cleared. Check for this instead of OOPSing.
*/
if (bh2jh(this_bh))
if ((EXT4_JOURNAL(inode) == NULL) || bh2jh(this_bh))
ext4_handle_dirty_metadata(handle, inode, this_bh);
else
ext4_error(inode->i_sb, __func__,

2
fs/ext4/mballoc.c
View File

@ -3025,7 +3025,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
goto out_err;
ext4_debug("using block group %u(%d)\n", ac->ac_b_ex.fe_group,
gdp->bg_free_blocks_count);
ext4_free_blks_count(sb, gdp));
err = ext4_journal_get_write_access(handle, gdp_bh);
if (err)

21
fs/ext4/namei.c
View File

@ -1368,7 +1368,7 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
struct fake_dirent *fde;
blocksize = dir->i_sb->s_blocksize;
dxtrace(printk(KERN_DEBUG "Creating index\n"));
dxtrace(printk(KERN_DEBUG "Creating index: inode %lu\n", dir->i_ino));
retval = ext4_journal_get_write_access(handle, bh);
if (retval) {
ext4_std_error(dir->i_sb, retval);
@ -1377,6 +1377,20 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
}
root = (struct dx_root *) bh->b_data;
/* The 0th block becomes the root, move the dirents out */
fde = &root->dotdot;
de = (struct ext4_dir_entry_2 *)((char *)fde +
ext4_rec_len_from_disk(fde->rec_len));
if ((char *) de >= (((char *) root) + blocksize)) {
ext4_error(dir->i_sb, __func__,
"invalid rec_len for '..' in inode %lu",
dir->i_ino);
brelse(bh);
return -EIO;
}
len = ((char *) root) + blocksize - (char *) de;
/* Allocate new block for the 0th block's dirents */
bh2 = ext4_append(handle, dir, &block, &retval);
if (!(bh2)) {
brelse(bh);
@ -1385,11 +1399,6 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
EXT4_I(dir)->i_flags |= EXT4_INDEX_FL;
data1 = bh2->b_data;
/* The 0th block becomes the root, move the dirents out */
fde = &root->dotdot;
de = (struct ext4_dir_entry_2 *)((char *)fde +
ext4_rec_len_from_disk(fde->rec_len));
len = ((char *) root) + blocksize - (char *) de;
memcpy (data1, de, len);
de = (struct ext4_dir_entry_2 *) data1;
top = data1 + len;

3
fs/ext4/resize.c
View File

@ -861,12 +861,13 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
gdp = (struct ext4_group_desc *)((char *)primary->b_data +
gdb_off * EXT4_DESC_SIZE(sb));
memset(gdp, 0, EXT4_DESC_SIZE(sb));
ext4_block_bitmap_set(sb, gdp, input->block_bitmap); /* LV FIXME */
ext4_inode_bitmap_set(sb, gdp, input->inode_bitmap); /* LV FIXME */
ext4_inode_table_set(sb, gdp, input->inode_table); /* LV FIXME */
ext4_free_blks_set(sb, gdp, input->free_blocks_count);
ext4_free_inodes_set(sb, gdp, EXT4_INODES_PER_GROUP(sb));
gdp->bg_flags |= cpu_to_le16(EXT4_BG_INODE_ZEROED);
gdp->bg_flags = cpu_to_le16(EXT4_BG_INODE_ZEROED);
gdp->bg_checksum = ext4_group_desc_csum(sbi, input->group, gdp);
/*

6
fs/jbd2/journal.c
View File

@ -37,10 +37,10 @@
#include <linux/proc_fs.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/math64.h>
#include <asm/uaccess.h>
#include <asm/page.h>
#include <asm/div64.h>
EXPORT_SYMBOL(jbd2_journal_start);
EXPORT_SYMBOL(jbd2_journal_restart);
@ -846,8 +846,8 @@ static int jbd2_seq_info_show(struct seq_file *seq, void *v)
jiffies_to_msecs(s->stats->u.run.rs_flushing / s->stats->ts_tid));
seq_printf(seq, " %ums logging transaction\n",
jiffies_to_msecs(s->stats->u.run.rs_logging / s->stats->ts_tid));
seq_printf(seq, " %luus average transaction commit time\n",
do_div(s->journal->j_average_commit_time, 1000));
seq_printf(seq, " %lluus average transaction commit time\n",
div_u64(s->journal->j_average_commit_time, 1000));
seq_printf(seq, " %lu handles per transaction\n",
s->stats->u.run.rs_handle_count / s->stats->ts_tid);
seq_printf(seq, " %lu blocks per transaction\n",

22
include/asm-generic/vmlinux.lds.h
View File

@ -445,10 +445,9 @@
* section in the linker script will go there too. @phdr should have
* a leading colon.
*
* This macro defines three symbols, __per_cpu_load, __per_cpu_start
* and __per_cpu_end. The first one is the vaddr of loaded percpu
* init data. __per_cpu_start equals @vaddr and __per_cpu_end is the
* end offset.
* Note that this macros defines __per_cpu_load as an absolute symbol.
* If there is no need to put the percpu section at a predetermined
* address, use PERCPU().
*/
#define PERCPU_VADDR(vaddr, phdr) \
VMLINUX_SYMBOL(__per_cpu_load) = .; \
@ -470,7 +469,20 @@
* Align to @align and outputs output section for percpu area. This
* macro doesn't maniuplate @vaddr or @phdr and __per_cpu_load and
* __per_cpu_start will be identical.
*
* This macro is equivalent to ALIGN(align); PERCPU_VADDR( , ) except
* that __per_cpu_load is defined as a relative symbol against
* .data.percpu which is required for relocatable x86_32
* configuration.
*/
#define PERCPU(align) \
. = ALIGN(align); \
PERCPU_VADDR( , )
.data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { \
VMLINUX_SYMBOL(__per_cpu_load) = .; \
VMLINUX_SYMBOL(__per_cpu_start) = .; \
*(.data.percpu.first) \
*(.data.percpu.page_aligned) \
*(.data.percpu) \
*(.data.percpu.shared_aligned) \
VMLINUX_SYMBOL(__per_cpu_end) = .; \
}

1
include/linux/Kbuild
View File

@ -41,6 +41,7 @@ header-y += baycom.h
header-y += bfs_fs.h
header-y += blkpg.h
header-y += bpqether.h
header-y += bsg.h
header-y += can.h
header-y += cdk.h
header-y += chio.h

45
include/linux/bio.h
View File

@ -144,7 +144,7 @@ struct bio {
* bit 1 -- rw-ahead when set
* bit 2 -- barrier
* Insert a serialization point in the IO queue, forcing previously
* submitted IO to be completed before this oen is issued.
* submitted IO to be completed before this one is issued.
* bit 3 -- synchronous I/O hint: the block layer will unplug immediately
* Note that this does NOT indicate that the IO itself is sync, just
* that the block layer will not postpone issue of this IO by plugging.
@ -163,12 +163,33 @@ struct bio {
#define BIO_RW 0 /* Must match RW in req flags (blkdev.h) */
#define BIO_RW_AHEAD 1 /* Must match FAILFAST in req flags */
#define BIO_RW_BARRIER 2
#define BIO_RW_SYNC 3
#define BIO_RW_META 4
#define BIO_RW_DISCARD 5
#define BIO_RW_FAILFAST_DEV 6
#define BIO_RW_FAILFAST_TRANSPORT 7
#define BIO_RW_FAILFAST_DRIVER 8
#define BIO_RW_SYNCIO 3
#define BIO_RW_UNPLUG 4
#define BIO_RW_META 5
#define BIO_RW_DISCARD 6
#define BIO_RW_FAILFAST_DEV 7
#define BIO_RW_FAILFAST_TRANSPORT 8
#define BIO_RW_FAILFAST_DRIVER 9
#define BIO_RW_SYNC (BIO_RW_SYNCIO | BIO_RW_UNPLUG)
#define bio_rw_flagged(bio, flag) ((bio)->bi_rw & (1 << (flag)))
/*
* Old defines, these should eventually be replaced by direct usage of
* bio_rw_flagged()
*/
#define bio_barrier(bio) bio_rw_flagged(bio, BIO_RW_BARRIER)
#define bio_sync(bio) bio_rw_flagged(bio, BIO_RW_SYNCIO)
#define bio_unplug(bio) bio_rw_flagged(bio, BIO_RW_UNPLUG)
#define bio_failfast_dev(bio) bio_rw_flagged(bio, BIO_RW_FAILFAST_DEV)
#define bio_failfast_transport(bio) \
bio_rw_flagged(bio, BIO_RW_FAILFAST_TRANSPORT)
#define bio_failfast_driver(bio) \
bio_rw_flagged(bio, BIO_RW_FAILFAST_DRIVER)
#define bio_rw_ahead(bio) bio_rw_flagged(bio, BIO_RW_AHEAD)
#define bio_rw_meta(bio) bio_rw_flagged(bio, BIO_RW_META)
#define bio_discard(bio) bio_rw_flagged(bio, BIO_RW_DISCARD)
/*
* upper 16 bits of bi_rw define the io priority of this bio
@ -193,15 +214,6 @@ struct bio {
#define bio_offset(bio) bio_iovec((bio))->bv_offset
#define bio_segments(bio) ((bio)->bi_vcnt - (bio)->bi_idx)
#define bio_sectors(bio) ((bio)->bi_size >> 9)
#define bio_barrier(bio) ((bio)->bi_rw & (1 << BIO_RW_BARRIER))
#define bio_sync(bio) ((bio)->bi_rw & (1 << BIO_RW_SYNC))
#define bio_failfast_dev(bio) ((bio)->bi_rw & (1 << BIO_RW_FAILFAST_DEV))
#define bio_failfast_transport(bio) \
((bio)->bi_rw & (1 << BIO_RW_FAILFAST_TRANSPORT))
#define bio_failfast_driver(bio) ((bio)->bi_rw & (1 << BIO_RW_FAILFAST_DRIVER))
#define bio_rw_ahead(bio) ((bio)->bi_rw & (1 << BIO_RW_AHEAD))
#define bio_rw_meta(bio) ((bio)->bi_rw & (1 << BIO_RW_META))
#define bio_discard(bio) ((bio)->bi_rw & (1 << BIO_RW_DISCARD))
#define bio_empty_barrier(bio) (bio_barrier(bio) && !bio_has_data(bio) && !bio_discard(bio))
static inline unsigned int bio_cur_sectors(struct bio *bio)
@ -312,7 +324,6 @@ struct bio_integrity_payload {
void *bip_buf; /* generated integrity data */
bio_end_io_t *bip_end_io; /* saved I/O completion fn */
int bip_error; /* saved I/O error */
unsigned int bip_size;
unsigned short bip_pool; /* pool the ivec came from */

8
include/linux/blkdev.h
View File

@ -108,6 +108,7 @@ enum rq_flag_bits {
__REQ_RW_META, /* metadata io request */
__REQ_COPY_USER, /* contains copies of user pages */
__REQ_INTEGRITY, /* integrity metadata has been remapped */
__REQ_UNPLUG, /* unplug queue on submission */
__REQ_NR_BITS, /* stops here */
};
@ -134,6 +135,7 @@ enum rq_flag_bits {
#define REQ_RW_META (1 << __REQ_RW_META)
#define REQ_COPY_USER (1 << __REQ_COPY_USER)
#define REQ_INTEGRITY (1 << __REQ_INTEGRITY)
#define REQ_UNPLUG (1 << __REQ_UNPLUG)
#define BLK_MAX_CDB 16
@ -449,6 +451,11 @@ struct request_queue
#define QUEUE_FLAG_STACKABLE 13 /* supports request stacking */
#define QUEUE_FLAG_NONROT 14 /* non-rotational device (SSD) */
#define QUEUE_FLAG_VIRT QUEUE_FLAG_NONROT /* paravirt device */
#define QUEUE_FLAG_IO_STAT 15 /* do IO stats */
#define QUEUE_FLAG_DEFAULT ((1 << QUEUE_FLAG_IO_STAT) | \
(1 << QUEUE_FLAG_CLUSTER) | \
1 << QUEUE_FLAG_STACKABLE)
static inline int queue_is_locked(struct request_queue *q)
{
@ -565,6 +572,7 @@ enum {
#define blk_queue_stopped(q) test_bit(QUEUE_FLAG_STOPPED, &(q)->queue_flags)
#define blk_queue_nomerges(q) test_bit(QUEUE_FLAG_NOMERGES, &(q)->queue_flags)
#define blk_queue_nonrot(q) test_bit(QUEUE_FLAG_NONROT, &(q)->queue_flags)
#define blk_queue_io_stat(q) test_bit(QUEUE_FLAG_IO_STAT, &(q)->queue_flags)
#define blk_queue_flushing(q) ((q)->ordseq)
#define blk_queue_stackable(q) \
test_bit(QUEUE_FLAG_STACKABLE, &(q)->queue_flags)

3
include/linux/jbd2.h
View File

@ -308,7 +308,8 @@ void buffer_assertion_failure(struct buffer_head *bh);
int val = (expr); \
if (!val) { \
printk(KERN_ERR \
"EXT3-fs unexpected failure: %s;\n",# expr); \
"JBD2 unexpected failure: %s: %s;\n", \
__func__, #expr); \
printk(KERN_ERR why "\n"); \
} \
val; \

2
include/net/inet_hashtables.h
View File

@ -182,7 +182,7 @@ static inline int inet_ehash_locks_alloc(struct inet_hashinfo *hashinfo)
size = 2048;
if (nr_pcpus >= 32)
size = 4096;
if (sizeof(rwlock_t) != 0) {
if (sizeof(spinlock_t) != 0) {
#ifdef CONFIG_NUMA
if (size * sizeof(spinlock_t) > PAGE_SIZE)
hashinfo->ehash_locks = vmalloc(size * sizeof(spinlock_t));

5
mm/mmap.c
View File

@ -658,6 +658,9 @@ again: remove_next = 1 + (end > next->vm_end);
validate_mm(mm);
}
/* Flags that can be inherited from an existing mapping when merging */
#define VM_MERGEABLE_FLAGS (VM_CAN_NONLINEAR)
/*
* If the vma has a ->close operation then the driver probably needs to release
* per-vma resources, so we don't attempt to merge those.
@ -665,7 +668,7 @@ again: remove_next = 1 + (end > next->vm_end);
static inline int is_mergeable_vma(struct vm_area_struct *vma,
struct file *file, unsigned long vm_flags)
{
if (vma->vm_flags != vm_flags)
if ((vma->vm_flags ^ vm_flags) & ~VM_MERGEABLE_FLAGS)
return 0;
if (vma->vm_file != file)
return 0;

15
net/core/skbuff.c
View File

@ -2212,10 +2212,10 @@ unsigned int skb_seq_read(unsigned int consumed, const u8 **data,
return 0;
next_skb:
block_limit = skb_headlen(st->cur_skb);
block_limit = skb_headlen(st->cur_skb) + st->stepped_offset;
if (abs_offset < block_limit) {
*data = st->cur_skb->data + abs_offset;
*data = st->cur_skb->data + (abs_offset - st->stepped_offset);
return block_limit - abs_offset;
}
@ -2250,13 +2250,14 @@ next_skb:
st->frag_data = NULL;
}
if (st->cur_skb->next) {
st->cur_skb = st->cur_skb->next;
st->frag_idx = 0;
goto next_skb;
} else if (st->root_skb == st->cur_skb &&
if (st->root_skb == st->cur_skb &&
skb_shinfo(st->root_skb)->frag_list) {
st->cur_skb = skb_shinfo(st->root_skb)->frag_list;
st->frag_idx = 0;
goto next_skb;
} else if (st->cur_skb->next) {
st->cur_skb = st->cur_skb->next;
st->frag_idx = 0;
goto next_skb;
}

6
net/ipv4/ipconfig.c
View File

@ -1268,6 +1268,9 @@ __be32 __init root_nfs_parse_addr(char *name)
static int __init ip_auto_config(void)
{
__be32 addr;
#ifdef IPCONFIG_DYNAMIC
int retries = CONF_OPEN_RETRIES;
#endif
#ifdef CONFIG_PROC_FS
proc_net_fops_create(&init_net, "pnp", S_IRUGO, &pnp_seq_fops);
@ -1304,9 +1307,6 @@ static int __init ip_auto_config(void)
#endif
ic_first_dev->next) {
#ifdef IPCONFIG_DYNAMIC
int retries = CONF_OPEN_RETRIES;
if (ic_dynamic() < 0) {
ic_close_devs();

3
net/ipv4/tcp.c
View File

@ -524,7 +524,8 @@ static int tcp_splice_data_recv(read_descriptor_t *rd_desc, struct sk_buff *skb,
struct tcp_splice_state *tss = rd_desc->arg.data;
int ret;
ret = skb_splice_bits(skb, offset, tss->pipe, rd_desc->count, tss->flags);
ret = skb_splice_bits(skb, offset, tss->pipe, min(rd_desc->count, len),
tss->flags);
if (ret > 0)
rd_desc->count -= ret;
return ret;

53
net/ipv4/udp.c
View File

@ -120,8 +120,11 @@ EXPORT_SYMBOL(sysctl_udp_wmem_min);
atomic_t udp_memory_allocated;
EXPORT_SYMBOL(udp_memory_allocated);
#define PORTS_PER_CHAIN (65536 / UDP_HTABLE_SIZE)
static int udp_lib_lport_inuse(struct net *net, __u16 num,
const struct udp_hslot *hslot,
unsigned long *bitmap,
struct sock *sk,
int (*saddr_comp)(const struct sock *sk1,
const struct sock *sk2))
@ -132,12 +135,17 @@ static int udp_lib_lport_inuse(struct net *net, __u16 num,
sk_nulls_for_each(sk2, node, &hslot->head)
if (net_eq(sock_net(sk2), net) &&
sk2 != sk &&
sk2->sk_hash == num &&
(bitmap || sk2->sk_hash == num) &&
(!sk2->sk_reuse || !sk->sk_reuse) &&
(!sk2->sk_bound_dev_if || !sk->sk_bound_dev_if
|| sk2->sk_bound_dev_if == sk->sk_bound_dev_if) &&
(*saddr_comp)(sk, sk2))
(*saddr_comp)(sk, sk2)) {
if (bitmap)
__set_bit(sk2->sk_hash / UDP_HTABLE_SIZE,
bitmap);
else
return 1;
}
return 0;
}
@ -160,32 +168,47 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum,
if (!snum) {
int low, high, remaining;
unsigned rand;
unsigned short first;
unsigned short first, last;
DECLARE_BITMAP(bitmap, PORTS_PER_CHAIN);
inet_get_local_port_range(&low, &high);
remaining = (high - low) + 1;
rand = net_random();
snum = first = rand % remaining + low;
rand |= 1;
for (;;) {
hslot = &udptable->hash[udp_hashfn(net, snum)];
first = (((u64)rand * remaining) >> 32) + low;
/*
* force rand to be an odd multiple of UDP_HTABLE_SIZE
*/
rand = (rand | 1) * UDP_HTABLE_SIZE;
for (last = first + UDP_HTABLE_SIZE; first != last; first++) {
hslot = &udptable->hash[udp_hashfn(net, first)];
bitmap_zero(bitmap, PORTS_PER_CHAIN);
spin_lock_bh(&hslot->lock);
if (!udp_lib_lport_inuse(net, snum, hslot, sk, saddr_comp))
break;
spin_unlock_bh(&hslot->lock);
udp_lib_lport_inuse(net, snum, hslot, bitmap, sk,
saddr_comp);
snum = first;
/*
* Iterate on all possible values of snum for this hash.
* Using steps of an odd multiple of UDP_HTABLE_SIZE
* give us randomization and full range coverage.
*/
do {
snum = snum + rand;
} while (snum < low || snum > high);
if (snum == first)
goto fail;
if (low <= snum && snum <= high &&
!test_bit(snum / UDP_HTABLE_SIZE, bitmap))
goto found;
snum += rand;
} while (snum != first);
spin_unlock_bh(&hslot->lock);
}
goto fail;
} else {
hslot = &udptable->hash[udp_hashfn(net, snum)];
spin_lock_bh(&hslot->lock);
if (udp_lib_lport_inuse(net, snum, hslot, sk, saddr_comp))
if (udp_lib_lport_inuse(net, snum, hslot, NULL, sk, saddr_comp))
goto fail_unlock;
}
found:
inet_sk(sk)->num = snum;
sk->sk_hash = snum;
if (sk_unhashed(sk)) {

2
net/ipv6/addrconf.c
View File

@ -4250,7 +4250,7 @@ static struct addrconf_sysctl_table
.procname = "mc_forwarding",
.data = &ipv6_devconf.mc_forwarding,
.maxlen = sizeof(int),
.mode = 0644,
.mode = 0444,
.proc_handler = proc_dointvec,
},
#endif

4
net/ipv6/icmp.c
View File

@ -443,10 +443,10 @@ void icmpv6_send(struct sk_buff *skb, int type, int code, __u32 info,
if (xfrm_decode_session_reverse(skb, &fl2, AF_INET6))
goto relookup_failed;
if (ip6_dst_lookup(sk, &dst2, &fl))
if (ip6_dst_lookup(sk, &dst2, &fl2))
goto relookup_failed;
err = xfrm_lookup(net, &dst2, &fl, sk, XFRM_LOOKUP_ICMP);
err = xfrm_lookup(net, &dst2, &fl2, sk, XFRM_LOOKUP_ICMP);
switch (err) {
case 0:
dst_release(dst);

2
net/ipv6/ip6_input.c
View File

@ -255,6 +255,7 @@ int ip6_mc_input(struct sk_buff *skb)
* IPv6 multicast router mode is now supported ;)
*/
if (dev_net(skb->dev)->ipv6.devconf_all->mc_forwarding &&
!(ipv6_addr_type(&hdr->daddr) & IPV6_ADDR_LINKLOCAL) &&
likely(!(IP6CB(skb)->flags & IP6SKB_FORWARDED))) {
/*
* Okay, we try to forward - split and duplicate
@ -316,7 +317,6 @@ int ip6_mc_input(struct sk_buff *skb)
}
if (skb2) {
skb2->dev = skb2->dst->dev;
ip6_mr_input(skb2);
}
}

23
net/ipv6/ip6mr.c
View File

@ -365,7 +365,9 @@ static int pim6_rcv(struct sk_buff *skb)
pim = (struct pimreghdr *)skb_transport_header(skb);
if (pim->type != ((PIM_VERSION << 4) | PIM_REGISTER) ||
(pim->flags & PIM_NULL_REGISTER) ||
(ip_compute_csum((void *)pim, sizeof(*pim)) != 0 &&
(csum_ipv6_magic(&ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
sizeof(*pim), IPPROTO_PIM,
csum_partial((void *)pim, sizeof(*pim), 0)) &&
csum_fold(skb_checksum(skb, 0, skb->len, 0))))
goto drop;
@ -392,7 +394,7 @@ static int pim6_rcv(struct sk_buff *skb)
skb_pull(skb, (u8 *)encap - skb->data);
skb_reset_network_header(skb);
skb->dev = reg_dev;
skb->protocol = htons(ETH_P_IP);
skb->protocol = htons(ETH_P_IPV6);
skb->ip_summed = 0;
skb->pkt_type = PACKET_HOST;
dst_release(skb->dst);
@ -481,6 +483,7 @@ static int mif6_delete(struct net *net, int vifi)
{
struct mif_device *v;
struct net_device *dev;
struct inet6_dev *in6_dev;
if (vifi < 0 || vifi >= net->ipv6.maxvif)
return -EADDRNOTAVAIL;
@ -513,6 +516,10 @@ static int mif6_delete(struct net *net, int vifi)
dev_set_allmulti(dev, -1);
in6_dev = __in6_dev_get(dev);
if (in6_dev)
in6_dev->cnf.mc_forwarding--;
if (v->flags & MIFF_REGISTER)
unregister_netdevice(dev);
@ -622,6 +629,7 @@ static int mif6_add(struct net *net, struct mif6ctl *vifc, int mrtsock)
int vifi = vifc->mif6c_mifi;
struct mif_device *v = &net->ipv6.vif6_table[vifi];
struct net_device *dev;
struct inet6_dev *in6_dev;
int err;
/* Is vif busy ? */
@ -662,6 +670,10 @@ static int mif6_add(struct net *net, struct mif6ctl *vifc, int mrtsock)
return -EINVAL;
}
in6_dev = __in6_dev_get(dev);
if (in6_dev)
in6_dev->cnf.mc_forwarding++;
/*
* Fill in the VIF structures
*/
@ -838,8 +850,6 @@ static int ip6mr_cache_report(struct net *net, struct sk_buff *pkt, mifi_t mifi,
skb->dst = dst_clone(pkt->dst);
skb->ip_summed = CHECKSUM_UNNECESSARY;
skb_pull(skb, sizeof(struct ipv6hdr));
}
if (net->ipv6.mroute6_sk == NULL) {
@ -1222,8 +1232,10 @@ static int ip6mr_sk_init(struct sock *sk)
rtnl_lock();
write_lock_bh(&mrt_lock);
if (likely(net->ipv6.mroute6_sk == NULL))
if (likely(net->ipv6.mroute6_sk == NULL)) {
net->ipv6.mroute6_sk = sk;
net->ipv6.devconf_all->mc_forwarding++;
}
else
err = -EADDRINUSE;
write_unlock_bh(&mrt_lock);
@ -1242,6 +1254,7 @@ int ip6mr_sk_done(struct sock *sk)
if (sk == net->ipv6.mroute6_sk) {
write_lock_bh(&mrt_lock);
net->ipv6.mroute6_sk = NULL;
net->ipv6.devconf_all->mc_forwarding--;
write_unlock_bh(&mrt_lock);
mroute_clean_tables(net);

2
net/ipv6/route.c
View File

@ -794,7 +794,7 @@ void ip6_route_input(struct sk_buff *skb)
.proto = iph->nexthdr,
};
if (rt6_need_strict(&iph->daddr))
if (rt6_need_strict(&iph->daddr) && skb->dev->type != ARPHRD_PIMREG)
flags |= RT6_LOOKUP_F_IFACE;
skb->dst = fib6_rule_lookup(net, &fl, flags, ip6_pol_route_input);

11
net/wimax/debugfs.c
View File

@ -28,17 +28,6 @@
#include "debug-levels.h"
/* Debug framework control of debug levels */
struct d_level D_LEVEL[] = {
D_SUBMODULE_DEFINE(debugfs),
D_SUBMODULE_DEFINE(id_table),
D_SUBMODULE_DEFINE(op_msg),
D_SUBMODULE_DEFINE(op_reset),
D_SUBMODULE_DEFINE(op_rfkill),
D_SUBMODULE_DEFINE(stack),
};
size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
#define __debugfs_register(prefix, name, parent) \
do { \
result = d_level_register_debugfs(prefix, name, parent); \

13
net/wimax/stack.c
View File

@ -516,6 +516,19 @@ void wimax_dev_rm(struct wimax_dev *wimax_dev)
}
EXPORT_SYMBOL_GPL(wimax_dev_rm);
/* Debug framework control of debug levels */
struct d_level D_LEVEL[] = {
D_SUBMODULE_DEFINE(debugfs),
D_SUBMODULE_DEFINE(id_table),
D_SUBMODULE_DEFINE(op_msg),
D_SUBMODULE_DEFINE(op_reset),
D_SUBMODULE_DEFINE(op_rfkill),
D_SUBMODULE_DEFINE(stack),
};
size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
struct genl_family wimax_gnl_family = {
.id = GENL_ID_GENERATE,
.name = "WiMAX",

32
net/wireless/reg.c
View File

@ -498,6 +498,7 @@ static struct ieee80211_regdomain *country_ie_2_rd(
* calculate the number of reg rules we will need. We will need one
* for each channel subband */
while (country_ie_len >= 3) {
int end_channel = 0;
struct ieee80211_country_ie_triplet *triplet =
(struct ieee80211_country_ie_triplet *) country_ie;
int cur_sub_max_channel = 0, cur_channel = 0;
@ -509,9 +510,25 @@ static struct ieee80211_regdomain *country_ie_2_rd(
continue;
}
/* 2 GHz */
if (triplet->chans.first_channel <= 14)
end_channel = triplet->chans.first_channel +
triplet->chans.num_channels;
else
/*
* 5 GHz -- For example in country IEs if the first
* channel given is 36 and the number of channels is 4
* then the individual channel numbers defined for the
* 5 GHz PHY by these parameters are: 36, 40, 44, and 48
* and not 36, 37, 38, 39.
*
* See: http://tinyurl.com/11d-clarification
*/
end_channel = triplet->chans.first_channel +
(4 * (triplet->chans.num_channels - 1));
cur_channel = triplet->chans.first_channel;
cur_sub_max_channel = ieee80211_channel_to_frequency(
cur_channel + triplet->chans.num_channels);
cur_sub_max_channel = end_channel;
/* Basic sanity check */
if (cur_sub_max_channel < cur_channel)
@ -590,15 +607,6 @@ static struct ieee80211_regdomain *country_ie_2_rd(
end_channel = triplet->chans.first_channel +
triplet->chans.num_channels;
else
/*
* 5 GHz -- For example in country IEs if the first
* channel given is 36 and the number of channels is 4
* then the individual channel numbers defined for the
* 5 GHz PHY by these parameters are: 36, 40, 44, and 48
* and not 36, 37, 38, 39.
*
* See: http://tinyurl.com/11d-clarification
*/
end_channel = triplet->chans.first_channel +
(4 * (triplet->chans.num_channels - 1));
@ -1276,7 +1284,7 @@ static void reg_country_ie_process_debug(
if (intersected_rd) {
printk(KERN_DEBUG "cfg80211: We intersect both of these "
"and get:\n");
print_regdomain_info(rd);
print_regdomain_info(intersected_rd);
return;
}
printk(KERN_DEBUG "cfg80211: Intersection between both failed\n");