27 Oct, 2010
31 commits
-
Presently update_nr_listpages() doesn't have a role. That's because lists
passed is always empty just after calling migrate_pages. The
migrate_pages cleans up page list which have failed to migrate before
returning by aaa994b3.[PATCH] page migration: handle freeing of pages in migrate_pages()
Do not leave pages on the lists passed to migrate_pages(). Seems that we will
not need any postprocessing of pages. This will simplify the handling of
pages by the callers of migrate_pages().At that time, we thought we don't need any postprocessing of pages. But
the situation is changed. The compaction need to know the number of
failed to migrate for COMPACTPAGEFAILED statThis patch makes new rule for caller of migrate_pages to call
putback_lru_pages. So caller need to clean up the lists so it has a
chance to postprocess the pages. [suggested by Christoph Lameter]Signed-off-by: Minchan Kim
Cc: Hugh Dickins
Cc: Andi Kleen
Reviewed-by: Mel Gorman
Reviewed-by: Wu Fengguang
Acked-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Non-NUMA systems do never create these files anyway, since they are only
created by driver subsystem when NUMA is configured.[akpm@linux-foundation.org: cleanup]
Signed-off-by: Thadeu Lima de Souza Cascardo
Reviewed-by: KOSAKI Motohiro
Cc: Lee Schermerhorn
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The presently-unused macro was missing one parameter.
Signed-off-by: zeal
Acked-by: Mel Gorman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This removes more dead code that was somehow missed by commit 0d99519efef
(writeback: remove unused nonblocking and congestion checks). There are
no behavior change except for the removal of two entries from one of the
ext4 tracing interface.The nonblocking checks in ->writepages are no longer used because the
flusher now prefer to block on get_request_wait() than to skip inodes on
IO congestion. The latter will lead to more seeky IO.The nonblocking checks in ->writepage are no longer used because it's
redundant with the WB_SYNC_NONE check.We no long set ->nonblocking in VM page out and page migration, because
a) it's effectively redundant with WB_SYNC_NONE in current code
b) it's old semantic of "Don't get stuck on request queues" is mis-behavior:
that would skip some dirty inodes on congestion and page out others, which
is unfair in terms of LRU age.Inspired by Christoph Hellwig. Thanks!
Signed-off-by: Wu Fengguang
Cc: Theodore Ts'o
Cc: David Howells
Cc: Sage Weil
Cc: Steve French
Cc: Chris Mason
Cc: Jens Axboe
Cc: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The locking order in oom_adjust_write() and oom_score_adj_write() for
task->alloc_lock and task->sighand->siglock is reversed, and lockdep
notices that irqs could encounter an ABBA scenario.This fixes the locking order so that we always take task_lock(task) prior
to lock_task_sighand(task).Signed-off-by: David Rientjes
Reported-by: Andrew Morton
Cc: KAMEZAWA Hiroyuki
Cc: KOSAKI Motohiro
Cc: Rik van Riel
Cc: Ying Han
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
It's better to use proper error handling in oom_adjust_write() and
oom_score_adj_write() instead of duplicating the locking order on various
exit paths.Suggested-by: Andrew Morton
Signed-off-by: David Rientjes
Cc: KAMEZAWA Hiroyuki
Cc: KOSAKI Motohiro
Cc: Rik van Riel
Cc: Ying Han
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
It's necessary to kill all threads that share an oom killed task's mm if
the goal is to lead to future memory freeing.This patch reintroduces the code removed in 8c5cd6f3 (oom: oom_kill
doesn't kill vfork parent (or child)) since it is obsoleted.It's now guaranteed that any task passed to oom_kill_task() does not share
an mm with any thread that is unkillable. Thus, we're safe to issue a
SIGKILL to any thread sharing the same mm.This is especially necessary to solve an mm->mmap_sem livelock issue
whereas an oom killed thread must acquire the lock in the exit path while
another thread is holding it in the page allocator while trying to
allocate memory itself (and will preempt the oom killer since a task was
already killed). Since tasks with pending fatal signals are now granted
access to memory reserves, the thread holding the lock may quickly
allocate and release the lock so that the oom killed task may exit.This mainly is for threads that are cloned with CLONE_VM but not
CLONE_THREAD, so they are in a different thread group. Non-NPTL threads
exist in the wild and this change is necessary to prevent the livelock in
such cases. We care more about preventing the livelock than incurring the
additional tasklist in the oom killer when a task has been killed.
Systems that are sufficiently large to not want the tasklist scan in the
oom killer in the first place already have the option of enabling
/proc/sys/vm/oom_kill_allocating_task, which was designed specifically for
that purpose.This code had existed in the oom killer for over eight years dating back
to the 2.4 kernel.[akpm@linux-foundation.org: add nice comment]
Signed-off-by: David Rientjes
Acked-by: KAMEZAWA Hiroyuki
Cc: KOSAKI Motohiro
Cc: Rik van Riel
Cc: Ying Han
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The oom killer's goal is to kill a memory-hogging task so that it may
exit, free its memory, and allow the current context to allocate the
memory that triggered it in the first place. Thus, killing a task is
pointless if other threads sharing its mm cannot be killed because of its
/proc/pid/oom_adj or /proc/pid/oom_score_adj value.This patch checks whether any other thread sharing p->mm has an
oom_score_adj of OOM_SCORE_ADJ_MIN. If so, the thread cannot be killed
and oom_badness(p) returns 0, meaning it's unkillable.Signed-off-by: David Rientjes
Cc: KAMEZAWA Hiroyuki
Cc: KOSAKI Motohiro
Cc: Rik van Riel
Cc: Ying Han
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
It's pointless to kill a task if another thread sharing its mm cannot be
killed to allow future memory freeing. A subsequent patch will prevent
kills in such cases, but first it's necessary to have a way to flag a task
that shares memory with an OOM_DISABLE task that doesn't incur an
additional tasklist scan, which would make select_bad_process() an O(n^2)
function.This patch adds an atomic counter to struct mm_struct that follows how
many threads attached to it have an oom_score_adj of OOM_SCORE_ADJ_MIN.
They cannot be killed by the kernel, so their memory cannot be freed in
oom conditions.This only requires task_lock() on the task that we're operating on, it
does not require mm->mmap_sem since task_lock() pins the mm and the
operation is atomic.[rientjes@google.com: changelog and sys_unshare() code]
[rientjes@google.com: protect oom_disable_count with task_lock in fork]
[rientjes@google.com: use old_mm for oom_disable_count in exec]
Signed-off-by: Ying Han
Signed-off-by: David Rientjes
Cc: KAMEZAWA Hiroyuki
Cc: KOSAKI Motohiro
Cc: Rik van Riel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Matt Mackall
Cc: Nikanth Karthikesan
Cc: Balbir Singh
Cc: Wu Fengguang
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
We use vmcore in our production kernel for a long time, it is pretty
stable now. So I don't think we need to mark it as experimental any more.Signed-off-by: WANG Cong
Acked-by: Neil Horman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Commit df9ee292 ("Fix IRQ flag handling naming") changed the IRQ flag
handling naming scheme and broke UML:In file included from arch/um/include/asm/fixmap.h:5,
from arch/um/include/shared/um_uaccess.h:10,
from arch/um/include/asm/uaccess.h:41,
from arch/um/include/asm/thread_info.h:13,
from include/linux/thread_info.h:56,
from include/linux/preempt.h:9,
from include/linux/spinlock.h:50,
from include/linux/seqlock.h:29,
from include/linux/time.h:8,
from include/linux/stat.h:60,
from include/linux/module.h:10,
from init/main.c:13:
arch/um/include/asm/system.h:11:1: warning: "local_save_flags" redefinedThis patch brings the new scheme to UML and makes it work again.
Signed-off-by: Richard Weinberger
Acked-by: David Howells
Cc: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
WARNING: at lib/list_debug.c:26 __list_add+0x3f/0x81()
Hardware name: Express5800/B120a [N8400-085]
list_add corruption. next->prev should be prev (ffffffff81a7ea00), but was dead000000200200. (next=ffff88080b872d58).
Modules linked in: aoe ipt_MASQUERADE iptable_nat nf_nat autofs4 sunrpc bridge 8021q garp stp llc ipv6 cpufreq_ondemand acpi_cpufreq freq_table dm_round_robin dm_multipath kvm_intel kvm uinput lpfc scsi_transport_fc igb ioatdma scsi_tgt i2c_i801 i2c_core dca iTCO_wdt iTCO_vendor_support pcspkr shpchp megaraid_sas [last unloaded: aoe]
Pid: 54, comm: events/3 Tainted: G W 2.6.34-vanilla1 #1
Call Trace:
[] warn_slowpath_common+0x7c/0x94
[] warn_slowpath_fmt+0x41/0x43
[] __list_add+0x3f/0x81
[] __percpu_counter_init+0x59/0x6b
[] bdi_init+0x118/0x17e
[] blk_alloc_queue_node+0x79/0x143
[] blk_alloc_queue+0x11/0x13
[] aoeblk_gdalloc+0x8e/0x1c9 [aoe]
[] aoecmd_sleepwork+0x25/0xa8 [aoe]
[] worker_thread+0x1a9/0x237
[] ? aoecmd_sleepwork+0x0/0xa8 [aoe]
[] ? autoremove_wake_function+0x0/0x39
[] ? worker_thread+0x0/0x237
[] kthread+0x7f/0x87
[] kernel_thread_helper+0x4/0x10
[] ? kthread+0x0/0x87
[] ? kernel_thread_helper+0x0/0x10It's because there is no initialization code for a list_head contained in
the struct backing_dev_info under CONFIG_HOTPLUG_CPU, and the bug comes up
when block device drivers calling blk_alloc_queue() are used. In case of
me, I got them by using aoe.Signed-off-by: Masanori Itoh
Cc: Tejun Heo
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This helper is wrong: it coerces signed values into unsigned ones, so code
such asif (kfifo_alloc(...) < 0) {
error
}will fail to detect the error.
So let's disable __kfifo_must_check_helper() for 2.6.36.
Cc: Randy Dunlap
Cc: Stefani Seibold
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
365b1818 ("add f_flags to struct statfs(64)") resized f_spare within
struct statfs which caused a UML crash. There is no need to copy f_spare.Signed-off-by: Richard Weinberger
Reported-by: Toralf Förster
Tested-by: Toralf Förster
Cc: Christoph Hellwig
Cc: Al Viro
Cc: Jeff Dike
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Unloading ipmi module can trigger following error. (if
CONFIG_DEBUG_SPINLOCK=y)[ 9633.779590] BUG: spinlock bad magic on CPU#1, rmmod/7170
[ 9633.779606] lock: f41f5414, .magic: 00000000, .owner:
/-1, .owner_cpu: 0
[ 9633.779626] Pid: 7170, comm: rmmod Not tainted
2.6.36-rc7-11474-gb71eb1e-dirty #328
[ 9633.779644] Call Trace:
[ 9633.779657] [] ? printk+0x18/0x1c
[ 9633.779672] [] spin_bug+0xa3/0xf0
[ 9633.779685] [] do_raw_spin_lock+0x7d/0x160
[ 9633.779702] [] ? release_sysfs_dirent+0x47/0xb0
[ 9633.779718] [] ? sysfs_addrm_finish+0xa8/0xd0
[ 9633.779734] [] _raw_spin_lock_irqsave+0xc/0x20
[ 9633.779752] [] cleanup_one_si+0x6a/0x200 [ipmi_si]
[ 9633.779768] [] ? sysfs_hash_and_remove+0x72/0x80
[ 9633.779786] [] ipmi_pnp_remove+0xd/0xf [ipmi_si]
[ 9633.779802] [] pnp_device_remove+0x1b/0x40Fix this by initializing spinlocks in a smi_info_alloc() helper function,
right after memory allocation and clearing.Signed-off-by: Eric Dumazet
Acked-by: David Miller
Cc: Yinghai Lu
Acked-by: Corey Minyard
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This is a bug fix. Some SPI connected devices using 16/24 bit accesses,
previously failed, now work.This typo slipped in after testing, during some restructuring.
Signed-off-by: Michael Hennerich
Cc: Mike Frysinger
Cc: Chris Verges
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The linker script cleanup that I did in commit 5d150a97f93 ("um: Clean up
linker script using standard macros.") (2.6.32) accidentally introduced an
ALIGN(PAGE_SIZE) when converting to use INIT_TEXT_SECTION; Richard
Weinberger reported that this causes the kernel to segfault with
CONFIG_STATIC_LINK=y.I'm not certain why this extra alignment is a problem, but it seems likely
it is because previously__init_begin = _stext = _text = _sinittext
and with the extra ALIGN(PAGE_SIZE), _sinittext becomes different from the
rest. So there is likely a bug here where something is assuming that
_sinittext is the same as one of those other symbols. But reverting the
accidental change fixes the regression, so it seems worth committing that
now.Signed-off-by: Tim Abbott
Reported-by: Richard Weinberger
Cc: Jeff Dike
Tested by: Antoine Martin
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
…structures have been torn down
Under some workloads, some channel messages have been observed being
delayed on the sending side past the point where the receiving side has
been able to tear down its partition structures.This condition is already detected in xpc_handle_activate_IRQ_uv(), but
that information is not given to xpc_handle_activate_mq_msg_uv(). As a
result, xpc_handle_activate_mq_msg_uv() assumes the structures still exist
and references them, causing a NULL-pointer deref.Signed-off-by: Robin Holt <holt@sgi.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> -
This fixes a issue which was introduced by fe2cc53e ("uml: track and make
up lost ticks").timeval_to_ns() returns long long and not int. Due to that UML's timer
did not work properlt and caused timer freezes.Signed-off-by: Richard Weinberger
Acked-by: Pekka Enberg
Cc: Jeff Dike
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
There is a bug in commit 6dda9d55 ("page allocator: reduce fragmentation
in buddy allocator by adding buddies that are merging to the tail of the
free lists") that means a buddy at order MAX_ORDER is checked for merging.
A page of this order never exists so at times, an effectively random
piece of memory is being checked.Alan Curry has reported that this is causing memory corruption in
userspace data on a PPC32 platform (http://lkml.org/lkml/2010/10/9/32).
It is not clear why this is happening. It could be a cache coherency
problem where pages mapped in both user and kernel space are getting
different cache lines due to the bad read from kernel space
(http://lkml.org/lkml/2010/10/13/179). It could also be that there are
some special registers being io-remapped at the end of the memmap array
and that a read has special meaning on them. Compiler bugs have been
ruled out because the assembly before and after the patch looks relatively
harmless.This patch fixes the problem by ensuring we are not reading a possibly
invalid location of memory. It's not clear why the read causes corruption
but one way or the other it is a buggy read.Signed-off-by: Mel Gorman
Cc: Corrado Zoccolo
Reported-by: Alan Curry
Cc: KOSAKI Motohiro
Cc: Christoph Lameter
Cc: Rik van Riel
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This comment landed in the wrong place.
Cc: Andi Kleen
Cc: Arnd Bergmann
Cc: David Miller
Cc: Eric Paris
Cc: Jan Engelhardt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
scan_lru_pages returns pfn. So, it's type should be "unsigned long"
not "int".Note: I guess this has been work until now because memory hotplug tester's
machine has not very big memory....
physical address < 32bit << PAGE_SHIFT.Reported-by: KOSAKI Motohiro
Signed-off-by: KAMEZAWA Hiroyuki
Reviewed-by: KOSAKI Motohiro
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
* git://git.infradead.org/battery-2.6:
power_supply: Makefile cleanup
bq27x00_battery: Add missing kfree(di->bus) in bq27x00_battery_remove()
power_supply: Introduce maximum current property
power_supply: Add types for USB chargers
ds2782_battery: Fix units
power_supply: Add driver for TWL4030/TPS65950 BCI charger
bq20z75: Add support for more power supply properties
wm831x_power: Add missing kfree(wm831x_power) in wm831x_power_remove()
jz4740-battery: Add missing kfree(jz_battery) in jz_battery_remove()
ds2760_battery: Add missing kfree(di) in ds2760_battery_remove()
olpc_battery: Fix endian neutral breakage for s16 values
ds2760_battery: Fix W1 and W1_SLAVE_DS2760 dependency
pcf50633-charger: Add missing sysfs_remove_group()
power_supply: Add driver for TI BQ20Z75 gas gauge IC
wm831x_power: Remove duplicate chg mask
omap: rx51: Add support for USB chargers
power_supply: Add isp1704 charger detection driver -
* 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/i7core: (34 commits)
i7core_edac: return -ENODEV when devices were already probed
i7core_edac: properly terminate pci_dev_table
i7core_edac: Avoid PCI refcount to reach zero on successive load/reload
i7core_edac: Fix refcount error at PCI devices
i7core_edac: it is safe to i7core_unregister_mci() when mci=NULL
i7core_edac: Fix an oops at i7core probe
i7core_edac: Remove unused member channels in i7core_pvt
i7core_edac: Remove unused arg csrow from get_dimm_config
i7core_edac: Reduce args of i7core_register_mci
i7core_edac: Introduce i7core_unregister_mci
i7core_edac: Use saved pointers
i7core_edac: Check probe counter in i7core_remove
i7core_edac: Call pci_dev_put() when alloc_i7core_dev() failed
i7core_edac: Fix error path of i7core_register_mci
i7core_edac: Fix order of lines in i7core_register_mci
i7core_edac: Always do get/put for all devices
i7core_edac: Introduce i7core_pci_ctl_create/release
i7core_edac: Introduce free_i7core_dev
i7core_edac: Introduce alloc_i7core_dev
i7core_edac: Reduce args of i7core_get_onedevice
... -
* 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6: (22 commits)
Add _addr_lsb field to ia64 siginfo
Fix migration.c compilation on s390
HWPOISON: Remove retry loop for try_to_unmap
HWPOISON: Turn addr_valid from bitfield into char
HWPOISON: Disable DEBUG by default
HWPOISON: Convert pr_debugs to pr_info
HWPOISON: Improve comments in memory-failure.c
x86: HWPOISON: Report correct address granuality for huge hwpoison faults
Encode huge page size for VM_FAULT_HWPOISON errors
Fix build error with !CONFIG_MIGRATION
hugepage: move is_hugepage_on_freelist inside ifdef to avoid warning
Clean up __page_set_anon_rmap
HWPOISON, hugetlb: fix unpoison for hugepage
HWPOISON, hugetlb: soft offlining for hugepage
HWPOSION, hugetlb: recover from free hugepage error when !MF_COUNT_INCREASED
hugetlb: move refcounting in hugepage allocation inside hugetlb_lock
HWPOISON, hugetlb: add free check to dequeue_hwpoison_huge_page()
hugetlb: hugepage migration core
hugetlb: redefine hugepage copy functions
hugetlb: add allocate function for hugepage migration
... -
* 'for_linus' of git://github.com/at91linux/linux-2.6-at91:
AT91: rtc: enable built-in RTC in Kconfig for at91sam9g45 family
at91/atmel-mci: inclusion of sd/mmc driver in at91sam9g45 chip and board
AT91: pm: make sure that r0 is 0 when dealing with cache operations
AT91: pm: use plain cpu_do_idle() for "wait for interrupt"
AT91: reset: extend alternate reset procedure to several chips
AT91: reset routine cleanup, remove not needed icache flush
AT91: trivial: align comment of at91sam9g20_reset with one more tab
AT91: Fix AT91SAM9G20 reset as per the errata in the data sheet
AT91: add board support for Pcontrol_G20 -
* 'for-linus' of git://gitorious.org/linux-omap-dss2/linux:
OMAP: DSS2: don't power off a panel twice
OMAP: DSS2: OMAPFB: Allow usage of def_vrfb only for omap2,3
OMAP: DSS2: OMAPFB: make VRFB depends on OMAP2,3
OMAP: DSS2: OMAPFB: Allow FB_OMAP2 to build without VRFB
arm/omap: simplify conditional
OMAP: DSS2: DSI: Remove extra iounmap in error path
OMAP: DSS2: Use dss_features framework on DSS2 code
OMAP: DSS2: Introduce dss_features files
video/omap: remove mux.h include
ARM: omap/fb: move get_fbmem_region() to .init.text
ARM: omap/fb: move omapfb_reserve_sram to .init.text
ARM: omap/fb: move omap_init_fb to .init.text
OMAP: DSS2: OMAPFB: swap front and back porches for both hsync and vsync
OMAP: DSS2: make filter coefficient tables human readable
OMAP: DSS2: Add SPI dependency to Kconfig of ACX565AKM panel -
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ]: x86, cpufreq: Mark longrun_get_policy with __cpuinit.
[CPUFREQ] add sampling_down_factor tunable to improve ondemand performance
[CPUFREQ] arch/x86/kernel/cpu/cpufreq: Fix unsigned return type
[CPUFREQ] drivers/cpufreq: Adjust confusing if indentation -
* 'for-2.6.37' of git://linux-nfs.org/~bfields/linux: (99 commits)
svcrpc: svc_tcp_sendto XPT_DEAD check is redundant
svcrpc: no need for XPT_DEAD check in svc_xprt_enqueue
svcrpc: assume svc_delete_xprt() called only once
svcrpc: never clear XPT_BUSY on dead xprt
nfsd4: fix connection allocation in sequence()
nfsd4: only require krb5 principal for NFSv4.0 callbacks
nfsd4: move minorversion to client
nfsd4: delay session removal till free_client
nfsd4: separate callback change and callback probe
nfsd4: callback program number is per-session
nfsd4: track backchannel connections
nfsd4: confirm only on succesful create_session
nfsd4: make backchannel sequence number per-session
nfsd4: use client pointer to backchannel session
nfsd4: move callback setup into session init code
nfsd4: don't cache seq_misordered replies
SUNRPC: Properly initialize sock_xprt.srcaddr in all cases
SUNRPC: Use conventional switch statement when reclassifying sockets
sunrpc/xprtrdma: clean up workqueue usage
sunrpc: Turn list_for_each-s into the ..._entry-s
...Fix up trivial conflicts (two different deprecation notices added in
separate branches) in Documentation/feature-removal-schedule.txt -
* 'nfs-for-2.6.37' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
net/sunrpc: Use static const char arrays
nfs4: fix channel attribute sanity-checks
NFSv4.1: Use more sensible names for 'initialize_mountpoint'
NFSv4.1: pnfs: filelayout: add driver's LAYOUTGET and GETDEVICEINFO infrastructure
NFSv4.1: pnfs: add LAYOUTGET and GETDEVICEINFO infrastructure
NFS: client needs to maintain list of inodes with active layouts
NFS: create and destroy inode's layout cache
NFSv4.1: pnfs: filelayout: introduce minimal file layout driver
NFSv4.1: pnfs: full mount/umount infrastructure
NFS: set layout driver
NFS: ask for layouttypes during v4 fsinfo call
NFS: change stateid to be a union
NFSv4.1: pnfsd, pnfs: protocol level pnfs constants
SUNRPC: define xdr_decode_opaque_fixed
NFSD: remove duplicate NFS4_STATEID_SIZE
26 Oct, 2010
9 commits
-
Enable built-in RTC IP in Kconfig and modify comments and help messages.
RTT as RTC is still available but should not be selected in common case.Reported-by: Yegor Yefremov
Signed-off-by: Nicolas Ferre -
This adds the support of atmel-mci sd/mmc driver in at91sam9g45 devices and
board files. This also configures the DMA controller slave interface for
at_hdmac dmaengine driver.Signed-off-by: Nicolas Ferre
-
When using CP15 cache operations (c7), we make sure that Rd (r0)
is actually 0 as ARM 926 TRM is saying.Signed-off-by: Nicolas Ferre
-
For power management at91_pm_enter() routine, use the cpu_do_idle() for a
rock solid "wait for interrupt" implementation.
For AT91SAM9 ARM 926 based chips, we can exceed the cache line length as
we can access RAM even while in self-refresh mode.
We keep plain access to CP15 for at91rm9200 as this feature is not
available: instructions have to be in a single cache line.Signed-off-by: Nicolas Ferre
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Several at91sam9 chips need the alternate reset procedure to be sure to halt
SDRAM smoothly before resetting the chip.
This is an extension of previous patch "Fix AT91SAM9G20 reset" to all chips
affected.Signed-off-by: Nicolas Ferre
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Generalize assembler reset routine to allow use on several at91sam9 chips.
This patch replace double definitions of SDRAM controller registers and RSTC
registers with use of classical header files.For this rework, we remove the not needed icache flush as it is already
done in the calling function: arm_machine_restart().Rename at91sam9g20_reset.S to generalize to several chips.
Signed-off-by: Nicolas Ferre
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Preparing next patch with longer names
Signed-off-by: Nicolas Ferre
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If the SDRAM is not cleanly shutdown before reset it can be left driving
the bus, which then stops the bootloader booting from NAND.Signed-off-by: Peter Horton
[nicolas.ferre@atmel.com: change file header line order]
Signed-off-by: Nicolas Ferre -
Board is a carrier board for Stamp9G20, with additional peripherals
for a building automation systemSigned-off-by: Peter Gsellmann
[nicolas.ferre@atmel.com: remove machine_desc.io_pg_offst and .phys_io]
Signed-off-by: Nicolas Ferre
