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File size before:
text data bss dec hex filename
20792 1580 994 23366 5b46 drivers/acpi/nfit/core.o
File size After adding 'const':
text data bss dec hex filename
20968 1388 994 23350 5b36 drivers/acpi/nfit/core.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
ACPI 6.2 defines a new ACPI notification value to NVDIMM Root Device
in Table 5-169.
0x81 Unconsumed Uncorrectable Memory Error Detected
Used to pro-actively notify OSPM of uncorrectable memory errors
detected (for example a memory scrubbing engine that continuously
scans the NVDIMMs memory). This is an optional notification. Only
locations that were mapped in to SPA by the platform will generate
a notification.
Add support of this notification value by initiating an ARS scan. This
will find new error locations and add their badblocks information.
Link: http://www.uefi.org/sites/default/files/resources/ACPI_6_2.pdf
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Linda Knippers <linda.knippers@hpe.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Sysfs "badblocks" information may be updated during run-time that:
- MCE, SCI, and sysfs "scrub" may add new bad blocks
- Writes and ioctl() may clear bad blocks
Add support to send sysfs notifications to sysfs "badblocks" file
under region and pmem directories when their badblocks information
is re-evaluated (but is not necessarily changed) during run-time.
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Linda Knippers <linda.knippers@hpe.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
The root cause of panic is the num_pm of nfit_test1 is wrong.
Though 1 is specified for num_pm at nfit_test_init(), it must be 2,
because nfit_test1->spa_set[] array has 2 elements.
Since the array is smaller than expected, the driver breaks other area.
(it is often the link list of devres).
As a result, panic occurs like the following example.
CPU: 4 PID: 2233 Comm: lt-libndctl Tainted: G O 4.12.0-rc1+ #12
RIP: 0010:__list_del_entry_valid+0x6c/0xa0
Call Trace:
release_nodes+0x76/0x260
devres_release_all+0x3c/0x50
device_release_driver_internal+0x159/0x200
device_release_driver+0x12/0x20
bus_remove_device+0xfd/0x170
device_del+0x1e8/0x330
platform_device_del+0x28/0x90
platform_device_unregister+0x12/0x30
nfit_test_exit+0x2a/0x93b [nfit_test]
Cc: <stable@vger.kernel.org>
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
The rules for which version of the label specification are in effect at
any given point in time are as follows:
1/ If a DIMM has an existing / valid index block then the version
specified is used regardless if it is a previous version.
2/ By default when the kernel is initializing new index blocks the
latest specification version (v1.2 at time of writing) is used.
3/ An environment that wants to force create v1.1 label-sets must
arrange for userspace to disable all active regions / namespaces /
dimms and write a valid set of v1.1 index blocks to the dimms.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Starting with v1.2 labels, 'address abstractions' can be hinted via an
address abstraction id that implies an info-block format. The standard
address abstraction in the specification is the v2 format of the
Block-Translation-Table (BTT). Support for that is saved for a later
patch, for now we add support for the Linux supported address
abstractions BTT (v1), PFN, and DAX.
The new 'holder_class' attribute for namespace devices is added for
tooling to specify the 'abstraction_guid' to store in the namespace label.
For v1.1 labels this field is undefined and any setting of
'holder_class' away from the default 'none' value will only have effect
until the driver is unloaded. Setting 'holder_class' requires that
whatever device tries to claim the namespace must be of the specified
class.
Cc: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
The v1.2 namespace label specification adds a fletcher checksum to each
label instance. Add generation and validation support for the new field.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
The v1.2 namespace label specification requires 'nlabel' and 'position'
to be valid for the first ("lowest dpa") label in the set. It also
requires all non-first labels to set those fields to 0xff.
Linux does not much care if these values are correct, because we can
just trust the count of labels with the matching uuid like the v1.1
case. However, we set them correctly in case other environments care.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Starting with the v1.2 definition of namespace labels, the isetcookie
field is populated and validated for blk-aperture namespaces. This adds
some safety against inadvertent copying of namespace labels from one
DIMM-device to another.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
The type_guid refers to the "Address Range Type GUID" for the region
backing a namespace as defined the ACPI NFIT (NVDIMM Firmware Interface
Table). This 'type' identifier specifies an access mechanism for the
given namespace. This capability replaces the confusing usage of the
'NSLABEL_FLAG_LOCAL' flag to indicate a block-aperture-mode namespace.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Previously we only honored the lba size for blk-aperture mode
namespaces. For pmem namespaces the lba size was just assumed to be 512.
With the new v1.2 label definition and compatibility with other
operating environments, the ->lbasize property is now respected for pmem
namespaces.
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
The interleave-set-cookie algorithm is extended to incorporate all the
same components that are used to generate an nvdimm unique-id. For
backwards compatibility we still maintain the old v1.1 definition.
Reported-by: Nicholas Moulin <nicholas.w.moulin@intel.com>
Reported-by: Kaushik Kanetkar <kaushik.a.kanetkar@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
In support of improved interoperability between operating systems and pre-boot
environments the Intel proposed NVDIMM Namespace Specification [1], has been
adopted and modified to the the UEFI 2.7 NVDIMM Label Protocol [2].
Update the definitions of the namespace label data structures so that the new
format can be supported alongside the existing label format.
The new specification changes the default label size to 256 bytes, so
everywhere that relied on sizeof(struct nd_namespace_label) must now use the
sizeof_namespace_label() helper.
There should be no functional differences from these changes as the
default is still the v1.1 128-byte format. Future patches will move the
default to the v1.2 definition.
[1]: http://pmem.io/documents/NVDIMM_Namespace_Spec.pdf
[2]: http://www.uefi.org/sites/default/files/resources/UEFI_Spec_2_7.pdf
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Fix the compile after the switch to the UUID API in commit f4c19ac9
("thermal: int340x_thermal: Switch to use new generic UUID API").
Signed-off-by: Christoph Hellwig <hch@lst.de>
There are new types and helpers that are supposed to be used in
new code.
As a preparation to get rid of legacy types and API functions do
the conversion here.
The conversion fixes a potential bug in int340x_thermal as well
since we have to use memcmp() on binary data.
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Without this the build will fail for !CONFIG_ACPI builds on x86.
Fixes: 94116f81 ("ACPI: Switch to use generic guid_t in acpi_evaluate_dsm()")
Signed-off-by: Christoph Hellwig <hch@lst.de>
acpi_evaluate_dsm() and friends take a pointer to a raw buffer of 16
bytes. Instead we convert them to use guid_t type. At the same time we
convert current users.
acpi_str_to_uuid() becomes useless after the conversion and it's safe to
get rid of it.
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Cc: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Joerg Roedel <jroedel@suse.de>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Yisen Zhuang <yisen.zhuang@huawei.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
There are new types and helpers that are supposed to be used in new code.
As a preparation to get rid of legacy types and API functions do
the conversion here.
Cc: Borislav Petkov <bp@suse.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
There are new types and helpers that are supposed to be used in new code.
As a preparation to get rid of legacy types and API functions do
the conversion here.
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
There are new types and helpers that are supposed to be used in new code.
As a preparation to get rid of legacy types and API functions do
the conversion here.
Cc: Borislav Petkov <bp@suse.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
There are new types and helpers that are supposed to be used in new code.
As a preparation to get rid of legacy types and API functions do
the conversion here.
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This is used by overlayfs to encode intrasystem unique file handles.
Suggested-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
And the uuid helpers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
For some file systems we still memcpy into it, but in various places this
already allows us to use the proper uuid helpers. More to come..
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com> (Changes to IMA/EVM)
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This helper was only used by IMA of all things, which would get spurious
errors if CONFIG_BLOCK is disabled. Just opencode the call there.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Use the common helper uuid_is_null() and remove the xfs specific
helper uuid_is_nil().
The common helper does not check for the NULL pointer value as
xfs helper did, but xfs code never calls the helper with a pointer
that can be NULL.
Conform comments and warning strings to use the term 'null uuid'
instead of 'nil uuid', because this is the terminology used by
lib/uuid.c and its users. It is also the terminology used in
userspace by libuuid and xfsprogs.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
[hch: remove now unused uuid.[ch]]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Opencode uuid_getnodeuniq in the only caller, and directly decode
the uuid_t representation instead of using a structure cast for it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
And switch to use uuid_t instead of the old uuid_be type.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Hoist the libnvdimm helper as an inline helper to linux/uuid.h
using an auxiliary const variable uuid_null in lib/uuid.c.
[hch: also add the guid variant. Both do the same but I'd like
to keep casts to a minimum]
The common helper uses the new abstract type uuid_t * instead of
u8 *.
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
[hch: added guid_is_null]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
These helper are used to compare and copy two uuid_t type objects.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
[hch: also provide the respective guid_ versions]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
These are only used in uuid.c and vsprintf.c and aren't something modules
should use directly.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Our "little endian" UUID really is a Wintel GUID, so rename it and its
helpers such (guid_t). The big endian UUID is the only true one, so
give it the name uuid_t. The uuid_le and uuid_be names are retained for
now, but will hopefully go away soon. The exception to that are the _cmp
helpers that will be replaced by better primitives ASAP and thus don't
get the new names.
Also the _to_bin helpers are named to match the better named uuid_parse
routine in userspace.
Also remove the existing typedef in XFS that's now been superceeded by
the generic type name.
Signed-off-by: Christoph Hellwig <hch@lst.de>
[andy: also update the UUID_LE/UUID_BE macros including fallout]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
We don't use uuid_be and the UUID_BE constants in any uapi headers, so make
them private to the kernel.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The md private helper uuid_equal() collides with a generic helper
of the same name.
Rename the md private helper to md_uuid_equal() and do the same for
md_sb_equal().
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Shaohua Li <shli@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Use the generic Linux definition to implement our UUID type, this will
allow using more generic infrastructure in the future.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
uuid_t definition is about to change.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
This essentially is a partial revert of commit ff548773
("afs: Move UUID struct to linux/uuid.h") and moves struct uuid_v1 back into
fs/afs as struct afs_uuid. It however keeps it as big endian structure
so that we can use the normal uuid generation helpers when casting to/from
struct afs_uuid.
The V1 uuid intrepretation in struct form isn't really useful to the
rest of the kernel, and not really compatible to it either, so move it
back to AFS instead of polluting the global uuid.h.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: David Howells <dhowells@redhat.com>
This fixes a problem with reading files larger than 2GB from a UFS-2
file system:
https://bugzilla.kernel.org/show_bug.cgi?id=195721
The incorrect UFS s_maxsize limit became a problem as of commit
c2a9737f45 ("vfs,mm: fix a dead loop in truncate_inode_pages_range()")
which started using s_maxbytes to avoid a page index overflow in
do_generic_file_read().
That caused files to be truncated on UFS-2 file systems because the
default maximum file size is 2GB (MAX_NON_LFS) and UFS didn't update it.
Here I simply increase the default to a common value used by other file
systems.
Signed-off-by: Richard Narron <comet.berkeley@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Will B <will.brokenbourgh2877@gmail.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: <stable@vger.kernel.org> # v4.9 and backports of c2a9737f45
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bugfixes include:
- Fix a typo in commit e092693443 that breaks copy offload
- Fix the connect error propagation in xs_tcp_setup_socket()
- Fix a lock leak in nfs40_walk_client_list
- Verify that pNFS requests lie within the offset range of the layout segment.
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Merge tag 'nfs-for-4.12-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"Bugfixes include:
- Fix a typo in commit e092693443 ("NFS append COMMIT after
synchronous COPY") that breaks copy offload
- Fix the connect error propagation in xs_tcp_setup_socket()
- Fix a lock leak in nfs40_walk_client_list
- Verify that pNFS requests lie within the offset range of the layout
segment"
* tag 'nfs-for-4.12-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
nfs: Mark unnecessarily extern functions as static
SUNRPC: ensure correct error is reported by xs_tcp_setup_socket()
NFSv4.0: Fix a lock leak in nfs40_walk_client_list
pnfs: Fix the check for requests in range of layout segment
xprtrdma: Delete an error message for a failed memory allocation in xprt_rdma_bc_setup()
pNFS/flexfiles: missing error code in ff_layout_alloc_lseg()
NFS fix COMMIT after COPY
Here is a single tty core fix for 4.12-rc4. It reverts a patch that a
lot of people reported as causing lockdep and other warnings. Right
after I reverted this in my tree, it seems like another "correct" fix
might have shown up, but it's too late in the release cycle to be
messing with tty core locking, so let's just revert this for now to go
back how things always have been and try it again for 4.13.
This has not been in linux-next as I only reverted it a few hours ago.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty fix from Greg KH:
"Here is a single tty core fix for 4.12-rc4. It reverts a patch that a
lot of people reported as causing lockdep and other warnings.
Right after I reverted this in my tree, it seems like another
"correct" fix might have shown up, but it's too late in the release
cycle to be messing with tty core locking, so let's just revert this
for now to go back how things always have been and try it again for
4.13.
This has not been in linux-next as I only reverted it a few hours ago"
* tag 'tty-4.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "tty: fix port buffer locking"
Pull input subsystem fixes from Dmitry Torokhov:
- a couple of regression fixes in synaptics and axp20x-pek drivers
- try to ease transition from PS/2 to RMI for Synaptics touchpad users
by ensuring we do not try to activate RMI mode when RMI SMBus support
is not enabled, and nag users a bit to enable it
- plus a couple of other changes that seemed worthwhile for this
release
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: axp20x-pek - switch to acpi_dev_present and check for ACPI0011 too
Input: axp20x-pek - only check for "INTCFD9" ACPI device on Cherry Trail
Input: tm2-touchkey - use LEN_ON as boolean value instead of LED_FULL
Input: synaptics - tell users to report when they should be using rmi-smbus
Input: synaptics - warn the users when there is a better mode
Input: synaptics - keep PS/2 around when RMI4_SMB is not enabled
Input: synaptics - clear device info before filling in
Input: silead - disable interrupt during suspend
Change the mailing list address
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Merge tag 'rtc-4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC fixlet from Alexandre Belloni:
"A single patch, not really a fix but I don't think there is any reason
to delay it.
Change the mailing list address"
* tag 'rtc-4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
MAINTAINERS: update RTC mailing list
