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Merge branch 'upstream-fixes'

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John W. Linville 2006-03-15 17:02:08 -05:00
commit dd288e7d75
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41
Documentation/cpusets.txt
View File

@ -4,8 +4,9 @@
Copyright (C) 2004 BULL SA.
Written by Simon.Derr@bull.net
Portions Copyright (c) 2004 Silicon Graphics, Inc.
Portions Copyright (c) 2004-2006 Silicon Graphics, Inc.
Modified by Paul Jackson <pj@sgi.com>
Modified by Christoph Lameter <clameter@sgi.com>
CONTENTS:
=========
@ -90,7 +91,8 @@ This can be especially valuable on:
These subsets, or "soft partitions" must be able to be dynamically
adjusted, as the job mix changes, without impacting other concurrently
executing jobs.
executing jobs. The location of the running jobs pages may also be moved
when the memory locations are changed.
The kernel cpuset patch provides the minimum essential kernel
mechanisms required to efficiently implement such subsets. It
@ -102,8 +104,8 @@ memory allocator code.
1.3 How are cpusets implemented ?
---------------------------------
Cpusets provide a Linux kernel (2.6.7 and above) mechanism to constrain
which CPUs and Memory Nodes are used by a process or set of processes.
Cpusets provide a Linux kernel mechanism to constrain which CPUs and
Memory Nodes are used by a process or set of processes.
The Linux kernel already has a pair of mechanisms to specify on which
CPUs a task may be scheduled (sched_setaffinity) and on which Memory
@ -371,22 +373,17 @@ cpusets memory placement policy 'mems' subsequently changes.
If the cpuset flag file 'memory_migrate' is set true, then when
tasks are attached to that cpuset, any pages that task had
allocated to it on nodes in its previous cpuset are migrated
to the tasks new cpuset. Depending on the implementation,
this migration may either be done by swapping the page out,
so that the next time the page is referenced, it will be paged
into the tasks new cpuset, usually on the node where it was
referenced, or this migration may be done by directly copying
the pages from the tasks previous cpuset to the new cpuset,
where possible to the same node, relative to the new cpuset,
as the node that held the page, relative to the old cpuset.
to the tasks new cpuset. The relative placement of the page within
the cpuset is preserved during these migration operations if possible.
For example if the page was on the second valid node of the prior cpuset
then the page will be placed on the second valid node of the new cpuset.
Also if 'memory_migrate' is set true, then if that cpusets
'mems' file is modified, pages allocated to tasks in that
cpuset, that were on nodes in the previous setting of 'mems',
will be moved to nodes in the new setting of 'mems.' Again,
depending on the implementation, this might be done by swapping,
or by direct copying. In either case, pages that were not in
the tasks prior cpuset, or in the cpusets prior 'mems' setting,
will not be moved.
will be moved to nodes in the new setting of 'mems.'
Pages that were not in the tasks prior cpuset, or in the cpusets
prior 'mems' setting, will not be moved.
There is an exception to the above. If hotplug functionality is used
to remove all the CPUs that are currently assigned to a cpuset,
@ -434,16 +431,6 @@ and then start a subshell 'sh' in that cpuset:
# The next line should display '/Charlie'
cat /proc/self/cpuset
In the case that a change of cpuset includes wanting to move already
allocated memory pages, consider further the work of IWAMOTO
Toshihiro <iwamoto@valinux.co.jp> for page remapping and memory
hotremoval, which can be found at:
http://people.valinux.co.jp/~iwamoto/mh.html
The integration of cpusets with such memory migration is not yet
available.
In the future, a C library interface to cpusets will likely be
available. For now, the only way to query or modify cpusets is
via the cpuset file system, using the various cd, mkdir, echo, cat,

116
Documentation/vm/page_migration
View File

@ -12,12 +12,18 @@ is running.
Page migration allows a process to manually relocate the node on which its
pages are located through the MF_MOVE and MF_MOVE_ALL options while setting
a new memory policy. The pages of process can also be relocated
a new memory policy via mbind(). The pages of process can also be relocated
from another process using the sys_migrate_pages() function call. The
migrate_pages function call takes two sets of nodes and moves pages of a
process that are located on the from nodes to the destination nodes.
Page migration functions are provided by the numactl package by Andi Kleen
(a version later than 0.9.3 is required. Get it from
ftp://ftp.suse.com/pub/people/ak). numactl provided libnuma which
provides an interface similar to other numa functionality for page migration.
cat /proc/<pid>/numa_maps allows an easy review of where the pages of
a process are located. See also the numa_maps manpage in the numactl package.
Manual migration is very useful if for example the scheduler has relocated
Manual migration is useful if for example the scheduler has relocated
a process to a processor on a distant node. A batch scheduler or an
administrator may detect the situation and move the pages of the process
nearer to the new processor. At some point in the future we may have
@ -25,10 +31,12 @@ some mechanism in the scheduler that will automatically move the pages.
Larger installations usually partition the system using cpusets into
sections of nodes. Paul Jackson has equipped cpusets with the ability to
move pages when a task is moved to another cpuset. This allows automatic
control over locality of a process. If a task is moved to a new cpuset
then also all its pages are moved with it so that the performance of the
process does not sink dramatically (as is the case today).
move pages when a task is moved to another cpuset (See ../cpusets.txt).
Cpusets allows the automation of process locality. If a task is moved to
a new cpuset then also all its pages are moved with it so that the
performance of the process does not sink dramatically. Also the pages
of processes in a cpuset are moved if the allowed memory nodes of a
cpuset are changed.
Page migration allows the preservation of the relative location of pages
within a group of nodes for all migration techniques which will preserve a
@ -37,22 +45,26 @@ process. This is necessary in order to preserve the memory latencies.
Processes will run with similar performance after migration.
Page migration occurs in several steps. First a high level
description for those trying to use migrate_pages() and then
a low level description of how the low level details work.
description for those trying to use migrate_pages() from the kernel
(for userspace usage see the Andi Kleen's numactl package mentioned above)
and then a low level description of how the low level details work.
A. Use of migrate_pages()
-------------------------
A. In kernel use of migrate_pages()
-----------------------------------
1. Remove pages from the LRU.
Lists of pages to be migrated are generated by scanning over
pages and moving them into lists. This is done by
calling isolate_lru_page() or __isolate_lru_page().
calling isolate_lru_page().
Calling isolate_lru_page increases the references to the page
so that it cannot vanish under us.
so that it cannot vanish while the page migration occurs.
It also prevents the swapper or other scans to encounter
the page.
2. Generate a list of newly allocates page to move the contents
of the first list to.
2. Generate a list of newly allocates page. These pages will contain the
contents of the pages from the first list after page migration is
complete.
3. The migrate_pages() function is called which attempts
to do the migration. It returns the moved pages in the
@ -63,13 +75,17 @@ A. Use of migrate_pages()
4. The leftover pages of various types are returned
to the LRU using putback_to_lru_pages() or otherwise
disposed of. The pages will still have the refcount as
increased by isolate_lru_pages()!
increased by isolate_lru_pages() if putback_to_lru_pages() is not
used! The kernel may want to handle the various cases of failures in
different ways.
B. Operation of migrate_pages()
--------------------------------
B. How migrate_pages() works
----------------------------
migrate_pages does several passes over its list of pages. A page is moved
if all references to a page are removable at the time.
migrate_pages() does several passes over its list of pages. A page is moved
if all references to a page are removable at the time. The page has
already been removed from the LRU via isolate_lru_page() and the refcount
is increased so that the page cannot be freed while page migration occurs.
Steps:
@ -79,36 +95,40 @@ Steps:
3. Make sure that the page has assigned swap cache entry if
it is an anonyous page. The swap cache reference is necessary
to preserve the information contain in the page table maps.
to preserve the information contain in the page table maps while
page migration occurs.
4. Prep the new page that we want to move to. It is locked
and set to not being uptodate so that all accesses to the new
page immediately lock while we are moving references.
page immediately lock while the move is in progress.
5. All the page table references to the page are either dropped (file backed)
or converted to swap references (anonymous pages). This should decrease the
reference count.
5. All the page table references to the page are either dropped (file
backed pages) or converted to swap references (anonymous pages).
This should decrease the reference count.
6. The radix tree lock is taken
6. The radix tree lock is taken. This will cause all processes trying
to reestablish a pte to block on the radix tree spinlock.
7. The refcount of the page is examined and we back out if references remain
otherwise we know that we are the only one referencing this page.
8. The radix tree is checked and if it does not contain the pointer to this
page then we back out.
page then we back out because someone else modified the mapping first.
9. The mapping is checked. If the mapping is gone then a truncate action may
be in progress and we back out.
10. The new page is prepped with some settings from the old page so that accesses
to the new page will be discovered to have the correct settings.
10. The new page is prepped with some settings from the old page so that
accesses to the new page will be discovered to have the correct settings.
11. The radix tree is changed to point to the new page.
12. The reference count of the old page is dropped because the reference has now
been removed.
12. The reference count of the old page is dropped because the radix tree
reference is gone.
13. The radix tree lock is dropped.
13. The radix tree lock is dropped. With that lookups become possible again
and other processes will move from spinning on the tree lock to sleeping on
the locked new page.
14. The page contents are copied to the new page.
@ -119,11 +139,37 @@ Steps:
17. Queued up writeback on the new page is triggered.
18. If swap pte's were generated for the page then remove them again.
18. If swap pte's were generated for the page then replace them with real
ptes. This will reenable access for processes not blocked by the page lock.
19. The locks are dropped from the old and new page.
19. The page locks are dropped from the old and new page.
Processes waiting on the page lock can continue.
20. The new page is moved to the LRU.
20. The new page is moved to the LRU and can be scanned by the swapper
etc again.
Christoph Lameter, December 19, 2005.
TODO list
---------
- Page migration requires the use of swap handles to preserve the
information of the anonymous page table entries. This means that swap
space is reserved but never used. The maximum number of swap handles used
is determined by CHUNK_SIZE (see mm/mempolicy.c) per ongoing migration.
Reservation of pages could be avoided by having a special type of swap
handle that does not require swap space and that would only track the page
references. Something like that was proposed by Marcelo Tosatti in the
past (search for migration cache on lkml or linux-mm@kvack.org).
- Page migration unmaps ptes for file backed pages and requires page
faults to reestablish these ptes. This could be optimized by somehow
recording the references before migration and then reestablish them later.
However, there are several locking challenges that have to be overcome
before this is possible.
- Page migration generates read ptes for anonymous pages. Dirty page
faults are required to make the pages writable again. It may be possible
to generate a pte marked dirty if it is known that the page is dirty and
that this process has the only reference to that page.
Christoph Lameter, March 8, 2006.

2
arch/arm/Kconfig
View File

@ -799,6 +799,8 @@ source "drivers/i2c/Kconfig"
source "drivers/spi/Kconfig"
source "drivers/w1/Kconfig"
source "drivers/hwmon/Kconfig"
#source "drivers/l3/Kconfig"

4
arch/arm/kernel/asm-offsets.c
View File

@ -57,7 +57,9 @@ int main(void)
DEFINE(TI_TP_VALUE, offsetof(struct thread_info, tp_value));
DEFINE(TI_FPSTATE, offsetof(struct thread_info, fpstate));
DEFINE(TI_VFPSTATE, offsetof(struct thread_info, vfpstate));
DEFINE(TI_IWMMXT_STATE, (offsetof(struct thread_info, fpstate)+4)&~7);
#ifdef CONFIG_IWMMXT
DEFINE(TI_IWMMXT_STATE, offsetof(struct thread_info, fpstate.iwmmxt));
#endif
BLANK();
DEFINE(S_R0, offsetof(struct pt_regs, ARM_r0));
DEFINE(S_R1, offsetof(struct pt_regs, ARM_r1));

14
arch/arm/kernel/ptrace.c
View File

@ -610,15 +610,12 @@ static int ptrace_setfpregs(struct task_struct *tsk, void __user *ufp)
static int ptrace_getwmmxregs(struct task_struct *tsk, void __user *ufp)
{
struct thread_info *thread = task_thread_info(tsk);
void *ptr = &thread->fpstate;
if (!test_ti_thread_flag(thread, TIF_USING_IWMMXT))
return -ENODATA;
iwmmxt_task_disable(thread); /* force it to ram */
/* The iWMMXt state is stored doubleword-aligned. */
if (((long) ptr) & 4)
ptr += 4;
return copy_to_user(ufp, ptr, 0x98) ? -EFAULT : 0;
return copy_to_user(ufp, &thread->fpstate.iwmmxt, IWMMXT_SIZE)
? -EFAULT : 0;
}
/*
@ -627,15 +624,12 @@ static int ptrace_getwmmxregs(struct task_struct *tsk, void __user *ufp)
static int ptrace_setwmmxregs(struct task_struct *tsk, void __user *ufp)
{
struct thread_info *thread = task_thread_info(tsk);
void *ptr = &thread->fpstate;
if (!test_ti_thread_flag(thread, TIF_USING_IWMMXT))
return -EACCES;
iwmmxt_task_release(thread); /* force a reload */
/* The iWMMXt state is stored doubleword-aligned. */
if (((long) ptr) & 4)
ptr += 4;
return copy_from_user(ptr, ufp, 0x98) ? -EFAULT : 0;
return copy_from_user(&thead->fpstate.iwmmxt, ufp, IWMMXT_SIZE)
? -EFAULT : 0;
}
#endif

4
arch/arm/lib/muldi3.S
View File

@ -29,8 +29,8 @@ ENTRY(__aeabi_lmul)
mul xh, yl, xh
mla xh, xl, yh, xh
mov ip, xl, asr #16
mov yh, yl, asr #16
mov ip, xl, lsr #16
mov yh, yl, lsr #16
bic xl, xl, ip, lsl #16
bic yl, yl, yh, lsl #16
mla xh, yh, ip, xh

4
arch/arm/mach-ixp4xx/Kconfig
View File

@ -8,11 +8,9 @@ menu "Intel IXP4xx Implementation Options"
comment "IXP4xx Platforms"
# This entry is placed on top because otherwise it would have
# been shown as a submenu.
config MACH_NSLU2
bool
prompt "NSLU2" if !(MACH_IXDP465 || MACH_IXDPG425 || ARCH_IXDP425 || ARCH_ADI_COYOTE || ARCH_AVILA || ARCH_IXCDP1100 || ARCH_PRPMC1100 || MACH_GTWX5715)
prompt "Linksys NSLU2"
help
Say 'Y' here if you want your kernel to support Linksys's
NSLU2 NAS device. For more information on this platform,

3
arch/arm/mach-ixp4xx/nas100d-setup.c
View File

@ -113,6 +113,9 @@ static void __init nas100d_init(void)
{
ixp4xx_sys_init();
/* gpio 14 and 15 are _not_ clocks */
*IXP4XX_GPIO_GPCLKR = 0;
nas100d_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
nas100d_flash_resource.end =
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;

7
arch/arm/mm/cache-v6.S
View File

@ -96,15 +96,16 @@ ENTRY(v6_coherent_user_range)
#ifdef HARVARD_CACHE
bic r0, r0, #CACHE_LINE_SIZE - 1
1: mcr p15, 0, r0, c7, c10, 1 @ clean D line
mcr p15, 0, r0, c7, c5, 1 @ invalidate I line
add r0, r0, #CACHE_LINE_SIZE
cmp r0, r1
blo 1b
#endif
mcr p15, 0, r0, c7, c5, 6 @ invalidate BTB
#ifdef HARVARD_CACHE
mov r0, #0
#ifdef HARVARD_CACHE
mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
mcr p15, 0, r0, c7, c5, 0 @ I+BTB cache invalidate
#else
mcr p15, 0, r0, c7, c5, 6 @ invalidate BTB
#endif
mov pc, lr

6
arch/arm/mm/flush.c
View File

@ -24,14 +24,16 @@
static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr)
{
unsigned long to = ALIAS_FLUSH_START + (CACHE_COLOUR(vaddr) << PAGE_SHIFT);
const int zero = 0;
set_pte(TOP_PTE(to), pfn_pte(pfn, PAGE_KERNEL));
flush_tlb_kernel_page(to);
asm( "mcrr p15, 0, %1, %0, c14\n"
" mcrr p15, 0, %1, %0, c5\n"
" mcr p15, 0, %2, c7, c10, 4\n"
" mcr p15, 0, %2, c7, c5, 0\n"
:
: "r" (to), "r" (to + PAGE_SIZE - L1_CACHE_BYTES)
: "r" (to), "r" (to + PAGE_SIZE - L1_CACHE_BYTES), "r" (zero)
: "cc");
}

6
arch/i386/kernel/apic.c
View File

@ -570,16 +570,18 @@ void __devinit setup_local_APIC(void)
*/
void lapic_shutdown(void)
{
unsigned long flags;
if (!cpu_has_apic)
return;
local_irq_disable();
local_irq_save(flags);
clear_local_APIC();
if (enabled_via_apicbase)
disable_local_APIC();
local_irq_enable();
local_irq_restore(flags);
}
#ifdef CONFIG_PM

44
drivers/edac/edac_mc.c
View File

@ -38,6 +38,12 @@
#define EDAC_MC_VERSION "edac_mc Ver: 2.0.0 " __DATE__
/* For now, disable the EDAC sysfs code. The sysfs interface that EDAC
* presents to user space needs more thought, and is likely to change
* substantially.
*/
#define DISABLE_EDAC_SYSFS
#ifdef CONFIG_EDAC_DEBUG
/* Values of 0 to 4 will generate output */
int edac_debug_level = 1;
@ -47,7 +53,7 @@ EXPORT_SYMBOL(edac_debug_level);
/* EDAC Controls, setable by module parameter, and sysfs */
static int log_ue = 1;
static int log_ce = 1;
static int panic_on_ue = 1;
static int panic_on_ue;
static int poll_msec = 1000;
static int check_pci_parity = 0; /* default YES check PCI parity */
@ -77,6 +83,8 @@ static int pci_whitelist_count ;
/* START sysfs data and methods */
#ifndef DISABLE_EDAC_SYSFS
static const char *mem_types[] = {
[MEM_EMPTY] = "Empty",
[MEM_RESERVED] = "Reserved",
@ -241,6 +249,7 @@ static struct kobj_type ktype_memctrl = {
.default_attrs = (struct attribute **) memctrl_attr,
};
#endif /* DISABLE_EDAC_SYSFS */
/* Initialize the main sysfs entries for edac:
* /sys/devices/system/edac
@ -251,6 +260,11 @@ static struct kobj_type ktype_memctrl = {
* !0 FAILURE
*/
static int edac_sysfs_memctrl_setup(void)
#ifdef DISABLE_EDAC_SYSFS
{
return 0;
}
#else
{
int err=0;
@ -283,6 +297,7 @@ static int edac_sysfs_memctrl_setup(void)
return err;
}
#endif /* DISABLE_EDAC_SYSFS */
/*
* MC teardown:
@ -290,6 +305,7 @@ static int edac_sysfs_memctrl_setup(void)
*/
static void edac_sysfs_memctrl_teardown(void)
{
#ifndef DISABLE_EDAC_SYSFS
debugf0("MC: " __FILE__ ": %s()\n", __func__);
/* Unregister the MC's kobject */
@ -300,8 +316,11 @@ static void edac_sysfs_memctrl_teardown(void)
/* Unregister the 'edac' object */
sysdev_class_unregister(&edac_class);
#endif /* DISABLE_EDAC_SYSFS */
}
#ifndef DISABLE_EDAC_SYSFS
/*
* /sys/devices/system/edac/pci;
* data structures and methods
@ -554,11 +573,18 @@ static struct kobj_type ktype_edac_pci = {
.default_attrs = (struct attribute **) edac_pci_attr,
};
#endif /* DISABLE_EDAC_SYSFS */
/**
* edac_sysfs_pci_setup()
*
*/
static int edac_sysfs_pci_setup(void)
#ifdef DISABLE_EDAC_SYSFS
{
return 0;
}
#else
{
int err;
@ -582,16 +608,20 @@ static int edac_sysfs_pci_setup(void)
}
return err;
}
#endif /* DISABLE_EDAC_SYSFS */
static void edac_sysfs_pci_teardown(void)
{
#ifndef DISABLE_EDAC_SYSFS
debugf0("MC: " __FILE__ ": %s()\n", __func__);
kobject_unregister(&edac_pci_kobj);
kobject_put(&edac_pci_kobj);
#endif
}
#ifndef DISABLE_EDAC_SYSFS
/* EDAC sysfs CSROW data structures and methods */
/* Set of more detailed csrow<id> attribute show/store functions */
@ -1045,6 +1075,8 @@ static struct kobj_type ktype_mci = {
.default_attrs = (struct attribute **) mci_attr,
};
#endif /* DISABLE_EDAC_SYSFS */
#define EDAC_DEVICE_SYMLINK "device"
/*
@ -1056,6 +1088,11 @@ static struct kobj_type ktype_mci = {
* !0 Failure
*/
static int edac_create_sysfs_mci_device(struct mem_ctl_info *mci)
#ifdef DISABLE_EDAC_SYSFS
{
return 0;
}
#else
{
int i;
int err;
@ -1124,12 +1161,14 @@ fail:
return err;
}
#endif /* DISABLE_EDAC_SYSFS */
/*
* remove a Memory Controller instance
*/
static void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci)
{
#ifndef DISABLE_EDAC_SYSFS
int i;
debugf0("MC: " __FILE__ ": %s()\n", __func__);
@ -1146,6 +1185,7 @@ static void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci)
kobject_unregister(&mci->edac_mci_kobj);
kobject_put(&mci->edac_mci_kobj);
#endif /* DISABLE_EDAC_SYSFS */
}
/* END OF sysfs data and methods */

2
drivers/macintosh/via-pmu.c
View File

@ -825,7 +825,7 @@ proc_get_info(char *page, char **start, off_t off,
p += sprintf(p, "PMU driver version : %d\n", PMU_DRIVER_VERSION);
p += sprintf(p, "PMU firmware version : %02x\n", pmu_version);
p += sprintf(p, "AC Power : %d\n",
((pmu_power_flags & PMU_PWR_AC_PRESENT) != 0));
((pmu_power_flags & PMU_PWR_AC_PRESENT) != 0) || pmu_battery_count == 0);
p += sprintf(p, "Battery count : %d\n", pmu_battery_count);
return p - page;

10
drivers/media/video/mxb.c
View File

@ -1,7 +1,7 @@
/*
mxb - v4l2 driver for the Multimedia eXtension Board
Copyright (C) 1998-2003 Michael Hunold <michael@mihu.de>
Copyright (C) 1998-2006 Michael Hunold <michael@mihu.de>
Visit http://www.mihu.de/linux/saa7146/mxb/
for further details about this card.
@ -327,6 +327,7 @@ static int mxb_init_done(struct saa7146_dev* dev)
struct video_decoder_init init;
struct i2c_msg msg;
struct tuner_setup tun_setup;
v4l2_std_id std = V4L2_STD_PAL_BG;
int i = 0, err = 0;
struct tea6415c_multiplex vm;
@ -361,6 +362,9 @@ static int mxb_init_done(struct saa7146_dev* dev)
mxb->tuner->driver->command(mxb->tuner, VIDIOC_S_FREQUENCY,
&mxb->cur_freq);
/* set a default video standard */
mxb->tuner->driver->command(mxb->tuner, VIDIOC_S_STD, &std);
/* mute audio on tea6420s */
mxb->tea6420_1->driver->command(mxb->tea6420_1,TEA6420_SWITCH, &TEA6420_line[6][0]);
mxb->tea6420_2->driver->command(mxb->tea6420_2,TEA6420_SWITCH, &TEA6420_line[6][1]);
@ -921,17 +925,21 @@ static int std_callback(struct saa7146_dev* dev, struct saa7146_standard *std)
int one = 1;
if(V4L2_STD_PAL_I == std->id ) {
v4l2_std_id std = V4L2_STD_PAL_I;
DEB_D(("VIDIOC_S_STD: setting mxb for PAL_I.\n"));
/* set the 7146 gpio register -- I don't know what this does exactly */
saa7146_write(dev, GPIO_CTRL, 0x00404050);
/* unset the 7111 gpio register -- I don't know what this does exactly */
mxb->saa7111a->driver->command(mxb->saa7111a,DECODER_SET_GPIO, &zero);
mxb->tuner->driver->command(mxb->tuner, VIDIOC_S_STD, &std);
} else {
v4l2_std_id std = V4L2_STD_PAL_BG;
DEB_D(("VIDIOC_S_STD: setting mxb for PAL/NTSC/SECAM.\n"));
/* set the 7146 gpio register -- I don't know what this does exactly */
saa7146_write(dev, GPIO_CTRL, 0x00404050);
/* set the 7111 gpio register -- I don't know what this does exactly */
mxb->saa7111a->driver->command(mxb->saa7111a,DECODER_SET_GPIO, &one);
mxb->tuner->driver->command(mxb->tuner, VIDIOC_S_STD, &std);
}
return 0;
}

2
drivers/mtd/devices/mtd_dataflash.c
View File

@ -178,7 +178,7 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
* we're at a block boundary and need to erase the whole block.
*/
pageaddr = instr->addr / priv->page_size;
do_block = (pageaddr & 0x7) == 0 && instr->len <= blocksize;
do_block = (pageaddr & 0x7) == 0 && instr->len >= blocksize;
pageaddr = pageaddr << priv->page_offset;
command[0] = do_block ? OP_ERASE_BLOCK : OP_ERASE_PAGE;

2
drivers/net/tg3.c
View File

@ -10543,8 +10543,6 @@ static char * __devinit tg3_bus_string(struct tg3 *tp, char *str)
strcat(str, "66MHz");
else if (clock_ctrl == 6)
strcat(str, "100MHz");
else if (clock_ctrl == 7)
strcat(str, "133MHz");
} else {
strcpy(str, "PCI:");
if (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED)

5
drivers/net/tun.c
View File

@ -249,8 +249,11 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv,
if (align)
skb_reserve(skb, align);
if (memcpy_fromiovec(skb_put(skb, len), iv, len))
if (memcpy_fromiovec(skb_put(skb, len), iv, len)) {
tun->stats.rx_dropped++;
kfree_skb(skb);
return -EFAULT;
}
skb->dev = tun->dev;
switch (tun->flags & TUN_TYPE_MASK) {

3
drivers/s390/cio/css.c
View File

@ -409,6 +409,9 @@ __init_channel_subsystem(struct subchannel_id schid, void *data)
/* -ENXIO: no more subchannels. */
case -ENXIO:
return ret;
/* -EIO: this subchannel set not supported. */
case -EIO:
return ret;
default:
return 0;
}

1
drivers/s390/scsi/zfcp_def.h
View File

@ -664,6 +664,7 @@ do { \
#define ZFCP_STATUS_UNIT_TEMPORARY 0x00000002
#define ZFCP_STATUS_UNIT_SHARED 0x00000004
#define ZFCP_STATUS_UNIT_READONLY 0x00000008
#define ZFCP_STATUS_UNIT_REGISTERED 0x00000010
/* FSF request status (this does not have a common part) */
#define ZFCP_STATUS_FSFREQ_NOT_INIT 0x00000000

11
drivers/s390/scsi/zfcp_erp.c
View File

@ -3391,10 +3391,13 @@ zfcp_erp_action_cleanup(int action, struct zfcp_adapter *adapter,
&& (!atomic_test_mask(ZFCP_STATUS_UNIT_TEMPORARY,
&unit->status))
&& !unit->device
&& port->rport)
scsi_add_device(port->adapter->scsi_host, 0,
port->rport->scsi_target_id,
unit->scsi_lun);
&& port->rport) {
atomic_set_mask(ZFCP_STATUS_UNIT_REGISTERED,
&unit->status);
scsi_scan_target(&port->rport->dev, 0,
port->rport->scsi_target_id,
unit->scsi_lun, 0);
}
zfcp_unit_put(unit);
break;
case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:

8
drivers/s390/scsi/zfcp_scsi.c
View File

@ -68,7 +68,7 @@ struct zfcp_data zfcp_data = {
eh_host_reset_handler: zfcp_scsi_eh_host_reset_handler,
/* FIXME(openfcp): Tune */
can_queue: 4096,
this_id: 0,
this_id: -1,
/*
* FIXME:
* one less? can zfcp_create_sbale cope with it?
@ -183,7 +183,8 @@ zfcp_scsi_slave_alloc(struct scsi_device *sdp)
read_lock_irqsave(&zfcp_data.config_lock, flags);
unit = zfcp_unit_lookup(adapter, sdp->channel, sdp->id, sdp->lun);
if (unit) {
if (unit && atomic_test_mask(ZFCP_STATUS_UNIT_REGISTERED,
&unit->status)) {
sdp->hostdata = unit;
unit->device = sdp;
zfcp_unit_get(unit);
@ -208,6 +209,7 @@ zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
struct zfcp_unit *unit = (struct zfcp_unit *) sdpnt->hostdata;
if (unit) {
atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status);
sdpnt->hostdata = NULL;
unit->device = NULL;
zfcp_unit_put(unit);
@ -291,7 +293,7 @@ zfcp_scsi_command_async(struct zfcp_adapter *adapter, struct zfcp_unit *unit,
"on port 0x%016Lx in recovery\n",
zfcp_get_busid_by_unit(unit),
unit->fcp_lun, unit->port->wwpn);
retval = SCSI_MLQUEUE_DEVICE_BUSY;
zfcp_scsi_command_fail(scpnt, DID_NO_CONNECT);
goto out;
}

14
drivers/scsi/ahci.c
View File

@ -742,23 +742,17 @@ static irqreturn_t ahci_interrupt (int irq, void *dev_instance, struct pt_regs *
struct ata_queued_cmd *qc;
qc = ata_qc_from_tag(ap, ap->active_tag);
if (!ahci_host_intr(ap, qc))
if (ata_ratelimit()) {
struct pci_dev *pdev =
to_pci_dev(ap->host_set->dev);
dev_printk(KERN_WARNING, &pdev->dev,
if (ata_ratelimit())
dev_printk(KERN_WARNING, host_set->dev,
"unhandled interrupt on port %u\n",
i);
}
VPRINTK("port %u\n", i);
} else {
VPRINTK("port %u (no irq)\n", i);
if (ata_ratelimit()) {
struct pci_dev *pdev =
to_pci_dev(ap->host_set->dev);
dev_printk(KERN_WARNING, &pdev->dev,
if (ata_ratelimit())
dev_printk(KERN_WARNING, host_set->dev,
"interrupt on disabled port %u\n", i);
}
}
irq_ack |= (1 << i);

1
drivers/scsi/pcmcia/Kconfig
View File

@ -8,6 +8,7 @@ menu "PCMCIA SCSI adapter support"
config PCMCIA_AHA152X
tristate "Adaptec AHA152X PCMCIA support"
depends on m && !64BIT
select SCSI_SPI_ATTRS
help
Say Y here if you intend to attach this type of PCMCIA SCSI host
adapter to your computer.

1
drivers/scsi/scsi_devinfo.c
View File

@ -126,6 +126,7 @@ static struct {
{"ADAPTEC", "Adaptec 5400S", NULL, BLIST_FORCELUN},
{"AFT PRO", "-IX CF", "0.0>", BLIST_FORCELUN},
{"BELKIN", "USB 2 HS-CF", "1.95", BLIST_FORCELUN | BLIST_INQUIRY_36},
{"BROWNIE", "1600U3P", NULL, BLIST_NOREPORTLUN},
{"CANON", "IPUBJD", NULL, BLIST_SPARSELUN},
{"CBOX3", "USB Storage-SMC", "300A", BLIST_FORCELUN | BLIST_INQUIRY_36},
{"CMD", "CRA-7280", NULL, BLIST_SPARSELUN}, /* CMD RAID Controller */

2
drivers/scsi/scsi_transport_fc.c
View File

@ -223,7 +223,7 @@ static void fc_rport_terminate(struct fc_rport *rport);
*/
#define FC_STARGET_NUM_ATTRS 3
#define FC_RPORT_NUM_ATTRS 9
#define FC_HOST_NUM_ATTRS 16
#define FC_HOST_NUM_ATTRS 17
struct fc_internal {
struct scsi_transport_template t;

6
fs/buffer.c
View File

@ -3060,6 +3060,7 @@ int buffer_migrate_page(struct page *newpage, struct page *page)
{
struct address_space *mapping = page->mapping;
struct buffer_head *bh, *head;
int rc;
if (!mapping)
return -EAGAIN;
@ -3069,8 +3070,9 @@ int buffer_migrate_page(struct page *newpage, struct page *page)
head = page_buffers(page);
if (migrate_page_remove_references(newpage, page, 3))
return -EAGAIN;
rc = migrate_page_remove_references(newpage, page, 3);
if (rc)
return rc;
bh = head;
do {

21
fs/direct-io.c
View File

@ -1155,15 +1155,16 @@ direct_io_worker(int rw, struct kiocb *iocb, struct inode *inode,
* For writes, i_mutex is not held on entry; it is never taken.
*
* DIO_LOCKING (simple locking for regular files)
* For writes we are called under i_mutex and return with i_mutex held, even though
* it is internally dropped.
* For writes we are called under i_mutex and return with i_mutex held, even
* though it is internally dropped.
* For reads, i_mutex is not held on entry, but it is taken and dropped before
* returning.
*
* DIO_OWN_LOCKING (filesystem provides synchronisation and handling of
* uninitialised data, allowing parallel direct readers and writers)
* For writes we are called without i_mutex, return without it, never touch it.
* For reads, i_mutex is held on entry and will be released before returning.
* For reads we are called under i_mutex and return with i_mutex held, even
* though it may be internally dropped.
*
* Additional i_alloc_sem locking requirements described inline below.
*/
@ -1182,7 +1183,8 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
ssize_t retval = -EINVAL;
loff_t end = offset;
struct dio *dio;
int reader_with_isem = (rw == READ && dio_lock_type == DIO_OWN_LOCKING);
int release_i_mutex = 0;
int acquire_i_mutex = 0;
if (rw & WRITE)
current->flags |= PF_SYNCWRITE;
@ -1225,7 +1227,6 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
* writers need to grab i_alloc_sem only (i_mutex is already held)
* For regular files using DIO_OWN_LOCKING,
* neither readers nor writers take any locks here
* (i_mutex is already held and release for writers here)
*/
dio->lock_type = dio_lock_type;
if (dio_lock_type != DIO_NO_LOCKING) {
@ -1236,7 +1237,7 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
mapping = iocb->ki_filp->f_mapping;
if (dio_lock_type != DIO_OWN_LOCKING) {
mutex_lock(&inode->i_mutex);
reader_with_isem = 1;
release_i_mutex = 1;
}
retval = filemap_write_and_wait_range(mapping, offset,
@ -1248,7 +1249,7 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
if (dio_lock_type == DIO_OWN_LOCKING) {
mutex_unlock(&inode->i_mutex);
reader_with_isem = 0;
acquire_i_mutex = 1;
}
}
@ -1269,11 +1270,13 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
nr_segs, blkbits, get_blocks, end_io, dio);
if (rw == READ && dio_lock_type == DIO_LOCKING)
reader_with_isem = 0;
release_i_mutex = 0;
out:
if (reader_with_isem)
if (release_i_mutex)
mutex_unlock(&inode->i_mutex);
else if (acquire_i_mutex)
mutex_lock(&inode->i_mutex);
if (rw & WRITE)
current->flags &= ~PF_SYNCWRITE;
return retval;

7
fs/jfs/jfs_dmap.c
View File

@ -532,10 +532,10 @@ dbUpdatePMap(struct inode *ipbmap,
lastlblkno = lblkno;
LOGSYNC_LOCK(log, flags);
if (mp->lsn != 0) {
/* inherit older/smaller lsn */
logdiff(diffp, mp->lsn, log);
LOGSYNC_LOCK(log, flags);
if (difft < diffp) {
mp->lsn = lsn;
@ -548,20 +548,17 @@ dbUpdatePMap(struct inode *ipbmap,
logdiff(diffp, mp->clsn, log);
if (difft > diffp)
mp->clsn = tblk->clsn;
LOGSYNC_UNLOCK(log, flags);
} else {
mp->log = log;
mp->lsn = lsn;
/* insert bp after tblock in logsync list */
LOGSYNC_LOCK(log, flags);
log->count++;
list_add(&mp->synclist, &tblk->synclist);
mp->clsn = tblk->clsn;
LOGSYNC_UNLOCK(log, flags);
}
LOGSYNC_UNLOCK(log, flags);
}
/* write the last buffer. */

6
fs/jfs/jfs_imap.c
View File

@ -2844,11 +2844,11 @@ diUpdatePMap(struct inode *ipimap,
*/
lsn = tblk->lsn;
log = JFS_SBI(tblk->sb)->log;
LOGSYNC_LOCK(log, flags);
if (mp->lsn != 0) {
/* inherit older/smaller lsn */
logdiff(difft, lsn, log);
logdiff(diffp, mp->lsn, log);
LOGSYNC_LOCK(log, flags);
if (difft < diffp) {
mp->lsn = lsn;
/* move mp after tblock in logsync list */
@ -2860,17 +2860,15 @@ diUpdatePMap(struct inode *ipimap,
logdiff(diffp, mp->clsn, log);
if (difft > diffp)
mp->clsn = tblk->clsn;
LOGSYNC_UNLOCK(log, flags);
} else {
mp->log = log;
mp->lsn = lsn;
/* insert mp after tblock in logsync list */
LOGSYNC_LOCK(log, flags);
log->count++;
list_add(&mp->synclist, &tblk->synclist);
mp->clsn = tblk->clsn;
LOGSYNC_UNLOCK(log, flags);
}
LOGSYNC_UNLOCK(log, flags);
write_metapage(mp);
return (0);
}

9
fs/lockd/clntproc.c
View File

@ -662,12 +662,18 @@ nlmclnt_unlock(struct nlm_rqst *req, struct file_lock *fl)
* reclaimed while we're stuck in the unlock call. */
fl->fl_u.nfs_fl.flags &= ~NFS_LCK_GRANTED;
/*
* Note: the server is supposed to either grant us the unlock
* request, or to deny it with NLM_LCK_DENIED_GRACE_PERIOD. In either
* case, we want to unlock.
*/
do_vfs_lock(fl);
if (req->a_flags & RPC_TASK_ASYNC) {
status = nlmclnt_async_call(req, NLMPROC_UNLOCK,
&nlmclnt_unlock_ops);
/* Hrmf... Do the unlock early since locks_remove_posix()
* really expects us to free the lock synchronously */
do_vfs_lock(fl);
if (status < 0) {
nlmclnt_release_lockargs(req);
kfree(req);
@ -680,7 +686,6 @@ nlmclnt_unlock(struct nlm_rqst *req, struct file_lock *fl)
if (status < 0)
return status;
do_vfs_lock(fl);
if (resp->status == NLM_LCK_GRANTED)
return 0;

5
fs/namespace.c
View File

@ -1338,7 +1338,7 @@ struct namespace *dup_namespace(struct task_struct *tsk, struct fs_struct *fs)
new_ns = kmalloc(sizeof(struct namespace), GFP_KERNEL);
if (!new_ns)
goto out;
return NULL;
atomic_set(&new_ns->count, 1);
INIT_LIST_HEAD(&new_ns->list);
@ -1352,7 +1352,7 @@ struct namespace *dup_namespace(struct task_struct *tsk, struct fs_struct *fs)
if (!new_ns->root) {
up_write(&namespace_sem);
kfree(new_ns);
goto out;
return NULL;
}
spin_lock(&vfsmount_lock);
list_add_tail(&new_ns->list, &new_ns->root->mnt_list);
@ -1393,7 +1393,6 @@ struct namespace *dup_namespace(struct task_struct *tsk, struct fs_struct *fs)
if (altrootmnt)
mntput(altrootmnt);
out:
return new_ns;
}

10
fs/nfs/direct.c
View File

@ -57,6 +57,7 @@
#define NFSDBG_FACILITY NFSDBG_VFS
#define MAX_DIRECTIO_SIZE (4096UL << PAGE_SHIFT)
static void nfs_free_user_pages(struct page **pages, int npages, int do_dirty);
static kmem_cache_t *nfs_direct_cachep;
/*
@ -107,6 +108,15 @@ nfs_get_user_pages(int rw, unsigned long user_addr, size_t size,
page_count, (rw == READ), 0,
*pages, NULL);
up_read(&current->mm->mmap_sem);
/*
* If we got fewer pages than expected from get_user_pages(),
* the user buffer runs off the end of a mapping; return EFAULT.
*/
if (result >= 0 && result < page_count) {
nfs_free_user_pages(*pages, result, 0);
*pages = NULL;
result = -EFAULT;
}
}
return result;
}

2
fs/nfs/nfs4proc.c
View File

@ -1430,7 +1430,7 @@ static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
if (status == 0)
status = nfs4_do_fsinfo(server, fhandle, info);
out:
return status;
return nfs4_map_errors(status);
}
static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr)

4
include/asm-arm/fpstate.h
View File

@ -55,8 +55,10 @@ struct fp_soft_struct {
unsigned int save[FP_SOFT_SIZE]; /* undefined information */
};
#define IWMMXT_SIZE 0x98
struct iwmmxt_struct {
unsigned int save[0x98/sizeof(int) + 1];
unsigned int save[IWMMXT_SIZE / sizeof(unsigned int)];
};
union fp_state {

2
include/asm-arm/thread_info.h
View File

@ -59,7 +59,7 @@ struct thread_info {
struct cpu_context_save cpu_context; /* cpu context */
__u8 used_cp[16]; /* thread used copro */
unsigned long tp_value;
union fp_state fpstate;
union fp_state fpstate __attribute__((aligned(8)));
union vfp_state vfpstate;
struct restart_block restart_block;
};

6
kernel/fork.c
View File

@ -1061,6 +1061,12 @@ static task_t *copy_process(unsigned long clone_flags,
*/
p->clear_child_tid = (clone_flags & CLONE_CHILD_CLEARTID) ? child_tidptr: NULL;
/*
* sigaltstack should be cleared when sharing the same VM
*/
if ((clone_flags & (CLONE_VM|CLONE_VFORK)) == CLONE_VM)
p->sas_ss_sp = p->sas_ss_size = 0;
/*
* Syscall tracing should be turned off in the child regardless
* of CLONE_PTRACE.

8
mm/mempolicy.c
View File

@ -748,7 +748,7 @@ long do_mbind(unsigned long start, unsigned long len,
MPOL_MF_MOVE | MPOL_MF_MOVE_ALL))
|| mode > MPOL_MAX)
return -EINVAL;
if ((flags & MPOL_MF_MOVE_ALL) && !capable(CAP_SYS_RESOURCE))
if ((flags & MPOL_MF_MOVE_ALL) && !capable(CAP_SYS_NICE))
return -EPERM;
if (start & ~PAGE_MASK)
@ -942,20 +942,20 @@ asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
*/
if ((current->euid != task->suid) && (current->euid != task->uid) &&
(current->uid != task->suid) && (current->uid != task->uid) &&
!capable(CAP_SYS_ADMIN)) {
!capable(CAP_SYS_NICE)) {
err = -EPERM;
goto out;
}
task_nodes = cpuset_mems_allowed(task);
/* Is the user allowed to access the target nodes? */
if (!nodes_subset(new, task_nodes) && !capable(CAP_SYS_ADMIN)) {
if (!nodes_subset(new, task_nodes) && !capable(CAP_SYS_NICE)) {
err = -EPERM;
goto out;
}
err = do_migrate_pages(mm, &old, &new,
capable(CAP_SYS_ADMIN) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE);
capable(CAP_SYS_NICE) ? MPOL_MF_MOVE_ALL : MPOL_MF_MOVE);
out:
mmput(mm);
return err;

18
mm/vmscan.c
View File

@ -700,7 +700,7 @@ int migrate_page_remove_references(struct page *newpage,
* the page.
*/
if (!mapping || page_mapcount(page) + nr_refs != page_count(page))
return 1;
return -EAGAIN;
/*
* Establish swap ptes for anonymous pages or destroy pte
@ -721,13 +721,15 @@ int migrate_page_remove_references(struct page *newpage,
* If the page was not migrated then the PageSwapCache bit
* is still set and the operation may continue.
*/
try_to_unmap(page, 1);
if (try_to_unmap(page, 1) == SWAP_FAIL)
/* A vma has VM_LOCKED set -> Permanent failure */
return -EPERM;
/*
* Give up if we were unable to remove all mappings.
*/
if (page_mapcount(page))
return 1;
return -EAGAIN;
write_lock_irq(&mapping->tree_lock);
@ -738,7 +740,7 @@ int migrate_page_remove_references(struct page *newpage,
if (!page_mapping(page) || page_count(page) != nr_refs ||
*radix_pointer != page) {
write_unlock_irq(&mapping->tree_lock);
return 1;
return -EAGAIN;
}
/*
@ -813,10 +815,14 @@ EXPORT_SYMBOL(migrate_page_copy);
*/
int migrate_page(struct page *newpage, struct page *page)
{
int rc;
BUG_ON(PageWriteback(page)); /* Writeback must be complete */
if (migrate_page_remove_references(newpage, page, 2))
return -EAGAIN;
rc = migrate_page_remove_references(newpage, page, 2);
if (rc)
return rc;
migrate_page_copy(newpage, page);

2
net/bridge/netfilter/Makefile
View File

@ -29,4 +29,4 @@ obj-$(CONFIG_BRIDGE_EBT_SNAT) += ebt_snat.o
# watchers
obj-$(CONFIG_BRIDGE_EBT_LOG) += ebt_log.o
obj-$(CONFIG_BRIDGE_EBT_LOG) += ebt_ulog.o
obj-$(CONFIG_BRIDGE_EBT_ULOG) += ebt_ulog.o

2
net/ieee80211/ieee80211_crypt_ccmp.c
View File

@ -131,7 +131,7 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm,
a4_included = ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS));
qc_included = ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA) &&
(WLAN_FC_GET_STYPE(fc) & 0x08));
(WLAN_FC_GET_STYPE(fc) & IEEE80211_STYPE_QOS_DATA));
aad_len = 22;
if (a4_included)
aad_len += 6;

4
net/ieee80211/ieee80211_rx.c
View File

@ -1515,10 +1515,10 @@ static void ieee80211_process_probe_response(struct ieee80211_device
if (is_beacon(beacon->header.frame_ctl)) {
if (ieee->handle_beacon != NULL)
ieee->handle_beacon(dev, beacon, &network);
ieee->handle_beacon(dev, beacon, target);
} else {
if (ieee->handle_probe_response != NULL)
ieee->handle_probe_response(dev, beacon, &network);
ieee->handle_probe_response(dev, beacon, target);
}
}

7
net/ipv4/ip_output.c
View File

@ -847,10 +847,11 @@ int ip_append_data(struct sock *sk,
if (((length > mtu) && (sk->sk_protocol == IPPROTO_UDP)) &&
(rt->u.dst.dev->features & NETIF_F_UFO)) {
if(ip_ufo_append_data(sk, getfrag, from, length, hh_len,
fragheaderlen, transhdrlen, mtu, flags))
err = ip_ufo_append_data(sk, getfrag, from, length, hh_len,
fragheaderlen, transhdrlen, mtu,
flags);
if (err)
goto error;
return 0;
}

2
net/ipv4/netfilter/arp_tables.c
View File

@ -771,7 +771,7 @@ static int get_entries(const struct arpt_get_entries *entries,
struct arpt_table *t;
t = xt_find_table_lock(NF_ARP, entries->name);
if (t || !IS_ERR(t)) {
if (t && !IS_ERR(t)) {
struct xt_table_info *private = t->private;
duprintf("t->private->number = %u\n",
private->number);

2
net/ipv4/tcp_highspeed.c
View File

@ -125,7 +125,7 @@ static void hstcp_cong_avoid(struct sock *sk, u32 adk, u32 rtt,
/* Update AIMD parameters */
if (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd) {
while (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd &&
ca->ai < HSTCP_AIMD_MAX)
ca->ai < HSTCP_AIMD_MAX - 1)
ca->ai++;
} else if (tp->snd_cwnd < hstcp_aimd_vals[ca->ai].cwnd) {
while (tp->snd_cwnd > hstcp_aimd_vals[ca->ai].cwnd &&

4
net/ipv4/tcp_output.c
View File

@ -1036,6 +1036,10 @@ static int tcp_tso_should_defer(struct sock *sk, struct tcp_sock *tp, struct sk_
limit = min(send_win, cong_win);
/* If a full-sized TSO skb can be sent, do it. */
if (limit >= 65536)
return 0;
if (sysctl_tcp_tso_win_divisor) {
u32 chunk = min(tp->snd_wnd, tp->snd_cwnd * tp->mss_cache);

2
net/ipv6/addrconf.c
View File

@ -822,7 +822,7 @@ struct ipv6_saddr_score {
int addr_type;
unsigned int attrs;
int matchlen;
unsigned int scope;
int scope;
unsigned int rule;
};

2
net/ipv6/ah6.c
View File

@ -279,7 +279,7 @@ static int ah6_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struc
goto out;
memcpy(tmp_hdr, skb->nh.raw, hdr_len);
if (ipv6_clear_mutable_options(skb->nh.ipv6h, hdr_len))
goto out;
goto free_out;
skb->nh.ipv6h->priority = 0;
skb->nh.ipv6h->flow_lbl[0] = 0;
skb->nh.ipv6h->flow_lbl[1] = 0;

6
net/ipv6/inet6_hashtables.c
View File

@ -87,7 +87,7 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row,
struct inet_timewait_sock **twp)
{
struct inet_hashinfo *hinfo = death_row->hashinfo;
const struct inet_sock *inet = inet_sk(sk);
struct inet_sock *inet = inet_sk(sk);
const struct ipv6_pinfo *np = inet6_sk(sk);
const struct in6_addr *daddr = &np->rcv_saddr;
const struct in6_addr *saddr = &np->daddr;
@ -129,6 +129,10 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row,
}
unique:
/* Must record num and sport now. Otherwise we will see
* in hash table socket with a funny identity. */
inet->num = lport;
inet->sport = htons(lport);
BUG_TRAP(sk_unhashed(sk));
__sk_add_node(sk, &head->chain);
sk->sk_hash = hash;

7
net/ipv6/ip6_output.c
View File

@ -944,10 +944,11 @@ int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to,
if (((length > mtu) && (sk->sk_protocol == IPPROTO_UDP)) &&
(rt->u.dst.dev->features & NETIF_F_UFO)) {
if(ip6_ufo_append_data(sk, getfrag, from, length, hh_len,
fragheaderlen, transhdrlen, mtu, flags))
err = ip6_ufo_append_data(sk, getfrag, from, length, hh_len,
fragheaderlen, transhdrlen, mtu,
flags);
if (err)
goto error;
return 0;
}

6
net/netfilter/nfnetlink_queue.c
View File

@ -928,8 +928,12 @@ nfqnl_recv_config(struct sock *ctnl, struct sk_buff *skb,
if (nfqa[NFQA_CFG_PARAMS-1]) {
struct nfqnl_msg_config_params *params;
params = NFA_DATA(nfqa[NFQA_CFG_PARAMS-1]);
if (!queue) {
ret = -ENOENT;
goto out_put;
}
params = NFA_DATA(nfqa[NFQA_CFG_PARAMS-1]);
nfqnl_set_mode(queue, params->copy_mode,
ntohl(params->copy_range));
}

5
net/netlink/af_netlink.c
View File

@ -1194,6 +1194,9 @@ static int netlink_recvmsg(struct kiocb *kiocb, struct socket *sock,
msg->msg_namelen = sizeof(*addr);
}
if (nlk->flags & NETLINK_RECV_PKTINFO)
netlink_cmsg_recv_pktinfo(msg, skb);
if (NULL == siocb->scm) {
memset(&scm, 0, sizeof(scm));
siocb->scm = &scm;
@ -1205,8 +1208,6 @@ static int netlink_recvmsg(struct kiocb *kiocb, struct socket *sock,
netlink_dump(sk);
scm_recv(sock, msg, siocb->scm, flags);
if (nlk->flags & NETLINK_RECV_PKTINFO)
netlink_cmsg_recv_pktinfo(msg, skb);
out:
netlink_rcv_wake(sk);

2
net/sched/act_api.c
View File

@ -707,7 +707,7 @@ static int tcf_add_notify(struct tc_action *a, u32 pid, u32 seq, int event,
rtattr_failure:
nlmsg_failure:
skb_trim(skb, b - skb->data);
kfree_skb(skb);
return -1;
}

3
net/sunrpc/clnt.c
View File

@ -113,7 +113,7 @@ rpc_new_client(struct rpc_xprt *xprt, char *servname,
err = -EINVAL;
if (!xprt)
goto out_err;
goto out_no_xprt;
if (vers >= program->nrvers || !(version = program->version[vers]))
goto out_err;
@ -182,6 +182,7 @@ out_no_path:
kfree(clnt);
out_err:
xprt_destroy(xprt);
out_no_xprt:
return ERR_PTR(err);
}

13
net/sunrpc/sched.c
View File

@ -515,16 +515,14 @@ struct rpc_task * rpc_wake_up_next(struct rpc_wait_queue *queue)
*/
void rpc_wake_up(struct rpc_wait_queue *queue)
{
struct rpc_task *task;
struct rpc_task *task, *next;
struct list_head *head;
spin_lock_bh(&queue->lock);
head = &queue->tasks[queue->maxpriority];
for (;;) {
while (!list_empty(head)) {
task = list_entry(head->next, struct rpc_task, u.tk_wait.list);
list_for_each_entry_safe(task, next, head, u.tk_wait.list)
__rpc_wake_up_task(task);
}
if (head == &queue->tasks[0])
break;
head--;
@ -541,14 +539,13 @@ void rpc_wake_up(struct rpc_wait_queue *queue)
*/
void rpc_wake_up_status(struct rpc_wait_queue *queue, int status)
{
struct rpc_task *task, *next;
struct list_head *head;
struct rpc_task *task;
spin_lock_bh(&queue->lock);
head = &queue->tasks[queue->maxpriority];
for (;;) {
while (!list_empty(head)) {
task = list_entry(head->next, struct rpc_task, u.tk_wait.list);
list_for_each_entry_safe(task, next, head, u.tk_wait.list) {
task->tk_status = status;
__rpc_wake_up_task(task);
}