CONFIG_DEBUG_BLOCK_EXT_DEVT can break booting even on some modern
distros. Add BIG FAT WARNING to keep people at a safe distance.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This is basically a genericization of Jens Axboe's block layer
remote softirq changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
If the HUGE_FILE feature flag is not set, don't allow the creation of
large files, instead of automatically enabling the feature flag.
Recent versions of mke2fs will set the HUGE_FILE flag automatically
anyway for ext4 filesystems.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The multiblock allocator needs to be able to release blocks (and issue
a blkdev discard request) when the transaction which freed those
blocks is committed. Previously this was done via a polling mechanism
when blocks are allocated or freed. A much better way of doing things
is to create a jbd2 callback function and attaching the list of blocks
to be freed directly to the transaction structure.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Since Ext4 is supposed to be stable in 2.6.28-rc, ext4's documentation
file should be updated.
[ More updates also added by Theodore Ts'o. ]
Signed-off-by: Diego Calleja <diegocg@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
There are some newlines missing in ext4_check_descriptors, which
cause the printk level to be printed out when the next printk call
is made:
[ 778.847265] EXT4-fs: ext4_check_descriptors: Block bitmap for group 0
not in group (block 1509949442)!<3>EXT4-fs: group descriptors corrupted!
[ 802.646630] EXT4-fs: ext4_check_descriptors: Inode bitmap for group 0
not in group (block 9043971)!<3>EXT4-fs: group descriptors corrupted!
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
I dunno how this missed Bjorn and his quest to use %pF in commit
c80cfb0406 ("vsprintf: use new vsprintf
symbolic function pointer format"), but it did.
So use %pF in the two remaining places that still tried to print out
function pointers by hand.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (53 commits)
NFS: Fix a resolution problem with nfs_inode->cache_change_attribute
NFS: Fix the resolution problem with nfs_inode_attrs_need_update()
NFS: Changes to inode->i_nlinks must set the NFS_INO_INVALID_ATTR flag
RPC/RDMA: ensure connection attempt is complete before signalling.
RPC/RDMA: correct the reconnect timer backoff
RPC/RDMA: optionally emit useful transport info upon connect/disconnect.
RPC/RDMA: reformat a debug printk to keep lines together.
RPC/RDMA: harden connection logic against missing/late rdma_cm upcalls.
RPC/RDMA: fix connect/reconnect resource leak.
RPC/RDMA: return a consistent error, when connect fails.
RPC/RDMA: adhere to protocol for unpadded client trailing write chunks.
RPC/RDMA: avoid an oops due to disconnect racing with async upcalls.
RPC/RDMA: maintain the RPC task bytes-sent statistic.
RPC/RDMA: suppress retransmit on RPC/RDMA clients.
RPC/RDMA: fix connection IRD/ORD setting
RPC/RDMA: support FRMR client memory registration.
RPC/RDMA: check selected memory registration mode at runtime.
RPC/RDMA: add data types and new FRMR memory registration enum.
RPC/RDMA: refactor the inline memory registration code.
NFS: fix nfs_parse_ip_address() corner case
...
* 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (134 commits)
KVM: ia64: Add intel iommu support for guests.
KVM: ia64: add directed mmio range support for kvm guests
KVM: ia64: Make pmt table be able to hold physical mmio entries.
KVM: Move irqchip_in_kernel() from ioapic.h to irq.h
KVM: Separate irq ack notification out of arch/x86/kvm/irq.c
KVM: Change is_mmio_pfn to kvm_is_mmio_pfn, and make it common for all archs
KVM: Move device assignment logic to common code
KVM: Device Assignment: Move vtd.c from arch/x86/kvm/ to virt/kvm/
KVM: VMX: enable invlpg exiting if EPT is disabled
KVM: x86: Silence various LAPIC-related host kernel messages
KVM: Device Assignment: Map mmio pages into VT-d page table
KVM: PIC: enhance IPI avoidance
KVM: MMU: add "oos_shadow" parameter to disable oos
KVM: MMU: speed up mmu_unsync_walk
KVM: MMU: out of sync shadow core
KVM: MMU: mmu_convert_notrap helper
KVM: MMU: awareness of new kvm_mmu_zap_page behaviour
KVM: MMU: mmu_parent_walk
KVM: x86: trap invlpg
KVM: MMU: sync roots on mmu reload
...
This fixes the broken 77af7e3403
("softirq, warning fix: correct a format to avoid a warning") fix
correctly.
The type of a pointer subtraction is not "int", nor is it "long". It
can be either (or something else). It's "ptrdiff_t", and the printk
format for it is "%td".
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Some code here depends on CONFIG_KMOD to not try to load
protocol modules or similar, replace by CONFIG_MODULES
where more than just request_module depends on CONFIG_KMOD
and and also use try_then_request_module in ebtables.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: fix compat-vdso
x86/mm: unify init task OOM handling
x86/mm: do not trigger a kernel warning if user-space disables interrupts and generates a page fault
As noted by Akinobu Mita in patch b1fceac2b9,
alloc_bootmem and related functions never return NULL and always return a
zeroed region of memory. Thus a NULL test or memset after calls to these
functions is unnecessary.
arch/frv/mm/init.c | 2 --
1 file changed, 2 deletions(-)
This was fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
expression E;
statement S;
@@
E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...)
... when != E
(
- BUG_ON (E == NULL);
|
- if (E == NULL) S
)
@@
expression E,E1;
@@
E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...)
... when != E
- memset(E,0,E1);
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Switch unaligned access to the packed-struct implementation for BE accesses as
this reduces the size of the kernel a little. LE still uses the byte shift.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Provide dma_map_page() for the NOMMU-mode FRV arch.
Also do some fixing on the comments attached to the various DMA functions for
both MMU and NOMMU mode FRV code.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use the generic pci_enable_resources() instead of the arch-specific code.
Unlike this arch-specific code, the generic version:
- checks PCI_NUM_RESOURCES (11), not 6, resources
- skips resources that have neither IORESOURCE_IO nor IORESOURCE_MEM set
- skips ROM resources unless IORESOURCE_ROM_ENABLE is set
- checks for resource collisions with "!r->parent"
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: Add more documentation to firewire-cdev.h
firewire: fix ioctl() return code
firewire: fix setting tag and sy in iso transmission
firewire: fw-sbp2: fix another small generation access bug
firewire: fw-sbp2: enforce s/g segment size limit
firewire: fw_send_request_sync()
ieee1394: survive a few seconds connection loss
ieee1394: nodemgr clean up class iterators
ieee1394: dv1394, video1394: remove unnecessary expressions
ieee1394: raw1394: make write() thread-safe
ieee1394: raw1394: narrow down the state_mutex protected region
ieee1394: raw1394: replace BKL by local mutex, make ioctl() and mmap() thread-safe
ieee1394: sbp2: enforce s/g segment size limit
ieee1394: sbp2: check for DMA mapping failures
ieee1394: sbp2: stricter dma_sync
ieee1394: Use DIV_ROUND_UP
Open-code them rather than using defining macros. The function bodies are now
next to their kerneldoc comments as a bonus.
Add casts to the signed cases as they call into the unsigned versions.
Avoids the sparse warnings:
lib/vsprintf.c:249:1: warning: incorrect type in argument 3 (different signedness)
lib/vsprintf.c:249:1: expected unsigned long *res
lib/vsprintf.c:249:1: got long *res
lib/vsprintf.c:249:1: warning: incorrect type in argument 3 (different signedness)
lib/vsprintf.c:249:1: expected unsigned long *res
lib/vsprintf.c:249:1: got long *res
lib/vsprintf.c:251:1: warning: incorrect type in argument 3 (different signedness)
lib/vsprintf.c:251:1: expected unsigned long long *res
lib/vsprintf.c:251:1: got long long *res
lib/vsprintf.c:251:1: warning: incorrect type in argument 3 (different signedness)
lib/vsprintf.c:251:1: expected unsigned long long *res
lib/vsprintf.c:251:1: got long long *res
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Remove extra lines before the EXPORT_SYMBOL()s
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The default base is 10 unless there is a leading zero, in which
case the base will be guessed as 8.
The base will only be guesed as 16 when the string starts with '0x'
the third character is a valid hex digit.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
rt_intern_hash() is doing an update of a RCU guarded hash chain
without using rcu_assign_pointer() or equivalent barrier.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes the following compile error caused by commit
589f800bb1 ("fastboot: make the raid
autodetect code wait for all devices to init"):
CC init/do_mounts_md.o
init/do_mounts_md.c: In function 'autodetect_raid':
init/do_mounts_md.c:285: error: implicit declaration of function 'msleep'
make[2]: *** [init/do_mounts_md.o] Error 1
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
Blackfin arch: make sure cycles is marked as volatile so gcc doesnt reorder on us
Blackfin arch: disable CONFIG_HW_RANDOM and CONFIG_DAB in defconfig files
Blackfin arch: update cache flush prototypes with argument names to make them less mysterious
Blackfin arch: move bfin_addr_dcachable() and friends into the cacheflush header where it belongs
Blackfin arch: use the new bfin_addr_dcachable() function
Blackfin arch: fix bug - build kernel failed at head.S when reprogram clock on all platforms
Blackfin arch: unify/cleanup cache code
Blackfin arch: update AD7879 platform resources in board file
Blackfin arch: Zero out bss region in L1/L2 memory.
Blackfin arch: add read/write IO accessor functions to Blackfin
Blackfin arch: fix bug - some serial header files set RTS to an input when they should all be outputs
* 'agp-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6:
agp/nvidia: Support agp user-memory on nvidia agp.
agp/amd-k7: Suspend support for AMD K7 GART driver
agp/intel: Reduce extraneous PCI posting reads during init
agp: Fix stolen memory counting on G4X.
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (46 commits)
UIO: Fix mapping of logical and virtual memory
UIO: add automata sercos3 pci card support
UIO: Change driver name of uio_pdrv
UIO: Add alignment warnings for uio-mem
Driver core: add bus_sort_breadthfirst() function
NET: convert the phy_device file to use bus_find_device_by_name
kobject: Cleanup kobject_rename and !CONFIG_SYSFS
kobject: Fix kobject_rename and !CONFIG_SYSFS
sysfs: Make dir and name args to sysfs_notify() const
platform: add new device registration helper
sysfs: use ilookup5() instead of ilookup5_nowait()
PNP: create device attributes via default device attributes
Driver core: make bus_find_device_by_name() more robust
usb: turn dev_warn+WARN_ON combos into dev_WARN
debug: use dev_WARN() rather than WARN_ON() in device_pm_add()
debug: Introduce a dev_WARN() function
sysfs: fix deadlock
device model: Do a quickcheck for driver binding before doing an expensive check
Driver core: Fix cleanup in device_create_vargs().
Driver core: Clarify device cleanup.
...
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
module: remove CONFIG_KMOD in comment after #endif
remove CONFIG_KMOD from fs
remove CONFIG_KMOD from drivers
Manually fix conflict due to include cleanups in drivers/md/md.c
* 'docs' of git://git.lwn.net/linux-2.6:
Document panic_on_unrecovered_nmi sysctl
Add a reference to paper to SubmittingPatches
Add kerneldoc documentation for new printk format extensions
Remove videobook.tmpl
doc: Test-by?
Add the development process document
Documentation/block/data-integrity.txt: Fix section numbers
* 'for-linus' of git://neil.brown.name/md:
md: fix input truncation in safe_delay_store()
md: check for memory allocation failure in faulty personality
md: build failure due to missing delay.h
md: Relax minimum size restrictions on chunk_size.
md: remove space after function name in declaration and call.
md: Remove unnecessary #includes, #defines, and function declarations.
md: Convert remaining 1k representations in linear.c to sectors.
md: linear.c: Make two local variables sector-based.
md: linear: Represent dev_info->size and dev_info->offset in sectors.
md: linear.c: Remove broken debug code.
md: linear.c: Remove pointless initialization of curr_offset.
md: linear.c: Fix typo in comment.
md: Don't try to set an array to 'read-auto' if it is already in that state.
md: Allow metadata_version to be updated for externally managed metadata.
md: Fix rdev_size_store with size == 0
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (32 commits)
Input: wm97xx - update email address for Liam Girdwood
Input: i8042 - add Thinkpad R31 to nomux list
Input: move map_to_7segment.h to include/linux
Input: ads7846 - fix cache line sharing issue
Input: cm109 - add missing newlines to messages
Input: document i8042.debug in kernel-parameters.txt
Input: keyboard - fix potential out of bound access to key_map
Input: psmouse - add OLPC touchpad driver
Input: psmouse - tweak PSMOUSE_DEFINE_ATTR to support raw set callbacks
Input: psmouse - add psmouse_queue_work() for ps/2 extension to make use of
Input: psmouse - export psmouse_set_state for ps/2 extensions to use
Input: ads7846 - introduce .gpio_pendown to get pendown state
Input: ALPS - add signature for DualPoint found in Dell Latitude E6500
Input: serio_raw - allow attaching to translated (SERIO_I8042XL) ports
Input: cm109 - don't use obsolete logging macros
Input: atkbd - expand Latitude's force release quirk to other Dells
Input: bf54x-keys - add power management support
Input: atmel_tsadcc - improve accuracy
Input: convert drivers to use strict_strtoul()
Input: appletouch - handle geyser 3/4 status bits
...
With m68k allmodconfig, I get:
| drivers/rtc/rtc-ds1286.c: In function 'ds1286_rtc_read':
| drivers/rtc/rtc-ds1286.c:33: error: implicit declaration of function '__raw_readl'
| drivers/rtc/rtc-ds1286.c: In function 'ds1286_rtc_write':
| drivers/rtc/rtc-ds1286.c:38: error: implicit declaration of function '__raw_writel'
| drivers/rtc/rtc-ds1286.c: In function 'ds1286_probe':
| drivers/rtc/rtc-ds1286.c:345: error: implicit declaration of function 'ioremap'
| drivers/rtc/rtc-ds1286.c:345: warning: assignment makes pointer from integer without a cast
| drivers/rtc/rtc-ds1286.c:365: error: implicit declaration of function 'iounmap'
and
| drivers/rtc/rtc-m48t35.c: In function 'm48t35_read_time':
| drivers/rtc/rtc-m48t35.c:59: error: implicit declaration of function 'readb'
| drivers/rtc/rtc-m48t35.c:60: error: implicit declaration of function 'writeb'
| drivers/rtc/rtc-m48t35.c: In function 'm48t35_probe':
| drivers/rtc/rtc-m48t35.c:168: error: implicit declaration of function 'ioremap'
| drivers/rtc/rtc-m48t35.c:168: warning: assignment makes pointer from integer without a cast
| drivers/rtc/rtc-m48t35.c:188: error: implicit declaration of function 'iounmap'
Include <linux/io.h> to get access to the I/O API.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fill in needed locking around idr accesses, then remove the big kernel lock
from the UIO driver. Since there are no in-tree UIO drivers with open()
methods, no further BKL pushdown is required.
Acked-by: Hans J. Koch <hjk@linutronix.de>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This adds "panic_on_unrecovered_nmi" sysctl to
Documentation/filesystems/proc.txt. The text is mainly taken from
http://readlist.com/lists/vger.kernel.org/linux-kernel/43/217998.html.
Signed-off-by: Bernhard Walle <bwalle@suse.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: blacklist additional SoundGraph iMon LCD models
HID: fix/improve help texts for quirk drivers
HID: fix default building of HID-quirk drivers
The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) /
(d)) but is perhaps more readable.
An extract of the semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@haskernel@
@@
#include <linux/kernel.h>
@depends on haskernel@
expression n,d;
@@
(
- (n + d - 1) / d
+ DIV_ROUND_UP(n,d)
|
- (n + (d - 1)) / d
+ DIV_ROUND_UP(n,d)
)
@depends on haskernel@
expression n,d;
@@
- DIV_ROUND_UP((n),d)
+ DIV_ROUND_UP(n,d)
@depends on haskernel@
expression n,d;
@@
- DIV_ROUND_UP(n,(d))
+ DIV_ROUND_UP(n,d)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make the needlessly global kretprobe_table_lock() static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make the needlessly global hp_wmi_notify() static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add resource_type() and IORESOURCE_TYPE_BITS. They make it easier to add
more resource types without having to rewrite tons of code.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
No functional change. Just return NULL for kzalloc failure immediately,
rather than wrapping the whole function body in the body of an "if".
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A few minor updates for the GRU driver.
- documentation changes found in code reviews
- changes to #ifdefs to make them recognized by "unifdef"
(used in simulator testing)
- change GRU context load/unload to prefetch data
[akpm@linux-foundation.org: fix typo in comment]
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patchs adds the CONFIG_AIO option which allows to remove support
for asynchronous I/O operations, that are not necessarly used by
applications, particularly on embedded devices. As this is a
size-reduction option, it depends on CONFIG_EMBEDDED. It allows to
save ~7 kilobytes of kernel code/data:
text data bss dec hex filename
1115067 119180 217088 1451335 162547 vmlinux
1108025 119048 217088 1444161 160941 vmlinux.new
-7042 -132 0 -7174 -1C06 +/-
This patch has been originally written by Matt Mackall
<mpm@selenic.com>, and is part of the Linux Tiny project.
[randy.dunlap@oracle.com: build fix]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Zach Brown <zach.brown@oracle.com>
Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[akpm@linux-foundation.org: minor fixlets and cleanups]
Signed-off-by: Bernhard Weirich <bernhard.weirich@riedel.net>
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
