Commit Graph

531634 Commits

Author SHA1 Message Date
KarimAllah Ahmed
a846f47962 x86/kexec: prepend elfcorehdr instead of appending it to the crash-kernel command-line.
Any parameter passed after '--' in the kernel command-line will not be
parsed by the kernel at all, instead it will be passed directly to init
process.

Currently the kernel appends elfcorehdr=<paddr> to the cmdline passed from
kexec load, and if this command-line is used to pass parameters to init
process this means that 'elfcorehdr' will not be parsed as a kernel
parameter at all which will be a problem for vmcore subsystem since it
will know nothing about the location of the ELF structure!

Prepending 'elfcorehdr' instead of appending it fixes this problem since
it ensures that it always comes before '--' and so it's always parsed as a
kernel command-line parameter.

Even with this patch things can still go wrong if 'CONFIG_CMDLINE' was
also used to embedd a command-line to the crash dump kernel and this
command-line contains '--' since the current behavior of the kernel is to
actually append the boot loader command-line to the embedded command-line.

Signed-off-by: KarimAllah Ahmed <karahmed@amazon.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Haren Myneni <hbabu@us.ibm.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:57 -07:00
Yann Droneaud
460b865e53 fs: document seq_open()'s usage of file->private_data
seq_open() stores its struct seq_file in file->private_data, thus it must
not be modified by user of seq_file.

Link: http://lkml.kernel.org/r/cover.1433193673.git.ydroneaud@opteya.com
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:57 -07:00
Yann Droneaud
189f9841de fs: allocate structure unconditionally in seq_open()
Since patch described below, from v2.6.15-rc1, seq_open() could use a
struct seq_file already allocated by the caller if the pointer to the
structure is stored in file->private_data before calling the function.

    Commit 1abe77b0fc
    Author: Al Viro <viro@zeniv.linux.org.uk>
    Date:   Mon Nov 7 17:15:34 2005 -0500

        [PATCH] allow callers of seq_open do allocation themselves

        Allow caller of seq_open() to kmalloc() seq_file + whatever else they
        want and set ->private_data to it.  seq_open() will then abstain from
        doing allocation itself.

As there's no more use for such feature, as it could be easily replaced by
calls to seq_open_private() (see commit 39699037a5 ("[FS] seq_file:
Introduce the seq_open_private()")) and seq_release_private() (see
v2.6.0-test3), support for this uncommon feature can be removed from
seq_open().

Link: http://lkml.kernel.org/r/cover.1433193673.git.ydroneaud@opteya.com
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:57 -07:00
Yann Droneaud
ede1bf0dcf fs: use seq_open_private() for proc_mounts
A patchset to remove support for passing pre-allocated struct seq_file to
seq_open().  Such feature is undocumented and prone to error.

In particular, if seq_release() is used in release handler, it will
kfree() a pointer which was not allocated by seq_open().

So this patchset drops support for pre-allocated struct seq_file: it's
only of use in proc_namespace.c and can be easily replaced by using
seq_open_private()/seq_release_private().

Additionally, it documents the use of file->private_data to hold pointer
to struct seq_file by seq_open().

This patch (of 3):

Since patch described below, from v2.6.15-rc1, seq_open() could use a
struct seq_file already allocated by the caller if the pointer to the
structure is stored in file->private_data before calling the function.

    Commit 1abe77b0fc
    Author: Al Viro <viro@zeniv.linux.org.uk>
    Date:   Mon Nov 7 17:15:34 2005 -0500

        [PATCH] allow callers of seq_open do allocation themselves

        Allow caller of seq_open() to kmalloc() seq_file + whatever else they
        want and set ->private_data to it.  seq_open() will then abstain from
        doing allocation itself.

Such behavior is only used by mounts_open_common().

In order to drop support for such uncommon feature, proc_mounts is
converted to use seq_open_private(), which take care of allocating the
proc_mounts structure, making it available through ->private in struct
seq_file.

Conversely, proc_mounts is converted to use seq_release_private(), in
order to release the private structure allocated by seq_open_private().

Then, ->private is used directly instead of proc_mounts() macro to access
to the proc_mounts structure.

Link: http://lkml.kernel.org/r/cover.1433193673.git.ydroneaud@opteya.com
Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:56 -07:00
Mel Gorman
0e1cc95b4c mm: meminit: finish initialisation of struct pages before basic setup
Waiman Long reported that 24TB machines hit OOM during basic setup when
struct page initialisation was deferred.  One approach is to initialise
memory on demand but it interferes with page allocator paths.  This patch
creates dedicated threads to initialise memory before basic setup.  It
then blocks on a rw_semaphore until completion as a wait_queue and counter
is overkill.  This may be slower to boot but it's simplier overall and
also gets rid of a section mangling which existed so kswapd could do the
initialisation.

[akpm@linux-foundation.org: include rwsem.h, use DECLARE_RWSEM, fix comment, remove unneeded cast]
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Waiman Long <waiman.long@hp.com
Cc: Nathan Zimmer <nzimmer@sgi.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Scott Norton <scott.norton@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:56 -07:00
Mel Gorman
74033a798f mm: meminit: remove mminit_verify_page_links
mminit_verify_page_links() is an extremely paranoid check that was
introduced when memory initialisation was being heavily reworked.
Profiles indicated that up to 10% of parallel memory initialisation was
spent on checking this for every page.  The cost could be reduced but in
practice this check only found problems very early during the
initialisation rewrite and has found nothing since.  This patch removes an
expensive unnecessary check.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Nate Zimmer <nzimmer@sgi.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:56 -07:00
Mel Gorman
ac5d2539b2 mm: meminit: reduce number of times pageblocks are set during struct page init
During parallel sturct page initialisation, ranges are checked for every
PFN unnecessarily which increases boot times.  This patch alters when the
ranges are checked.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Nate Zimmer <nzimmer@sgi.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:56 -07:00
Mel Gorman
a4de83dd33 mm: meminit: free pages in large chunks where possible
Parallel struct page frees pages one at a time. Try free pages as single
large pages where possible.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Nate Zimmer <nzimmer@sgi.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:56 -07:00
Mel Gorman
3b242c66cc x86: mm: enable deferred struct page initialisation on x86-64
Subject says it all.  Other architectures may enable on a case-by-case
basis after auditing early_pfn_to_nid and testing.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Nate Zimmer <nzimmer@sgi.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:56 -07:00
Mel Gorman
54608c3f3a mm: meminit: minimise number of pfn->page lookups during initialisation
Deferred struct page initialisation is using pfn_to_page() on every PFN
unnecessarily.  This patch minimises the number of lookups and scheduler
checks.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Nate Zimmer <nzimmer@sgi.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:56 -07:00
Mel Gorman
7e18adb4f8 mm: meminit: initialise remaining struct pages in parallel with kswapd
Only a subset of struct pages are initialised at the moment.  When this
patch is applied kswapd initialise the remaining struct pages in parallel.

This should boot faster by spreading the work to multiple CPUs and
initialising data that is local to the CPU.  The user-visible effect on
large machines is that free memory will appear to rapidly increase early
in the lifetime of the system until kswapd reports that all memory is
initialised in the kernel log.  Once initialised there should be no other
user-visibile effects.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Nate Zimmer <nzimmer@sgi.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:56 -07:00
Mel Gorman
3a80a7fa79 mm: meminit: initialise a subset of struct pages if CONFIG_DEFERRED_STRUCT_PAGE_INIT is set
This patch initalises all low memory struct pages and 2G of the highest
zone on each node during memory initialisation if
CONFIG_DEFERRED_STRUCT_PAGE_INIT is set.  That config option cannot be set
but will be available in a later patch.  Parallel initialisation of struct
page depends on some features from memory hotplug and it is necessary to
alter alter section annotations.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Nate Zimmer <nzimmer@sgi.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:56 -07:00
Mel Gorman
75a592a471 mm: meminit: inline some helper functions
early_pfn_in_nid() and meminit_pfn_in_nid() are small functions that are
unnecessarily visible outside memory initialisation.  As well as
unnecessary visibility, it's unnecessary function call overhead when
initialising pages.  This patch moves the helpers inline.

[akpm@linux-foundation.org: fix build]
[mhocko@suse.cz: fix build]
Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Nate Zimmer <nzimmer@sgi.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:56 -07:00
Mel Gorman
8a942fdea5 mm: meminit: make __early_pfn_to_nid SMP-safe and introduce meminit_pfn_in_nid
__early_pfn_to_nid() use static variables to cache recent lookups as
memblock lookups are very expensive but it assumes that memory
initialisation is single-threaded.  Parallel initialisation of struct
pages will break that assumption so this patch makes __early_pfn_to_nid()
SMP-safe by requiring the caller to cache recent search information.
early_pfn_to_nid() keeps the same interface but is only safe to use early
in boot due to the use of a global static variable.  meminit_pfn_in_nid()
is an SMP-safe version that callers must maintain their own state for.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Nate Zimmer <nzimmer@sgi.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:56 -07:00
Mel Gorman
d70ddd7a5d mm: page_alloc: pass PFN to __free_pages_bootmem
__free_pages_bootmem prepares a page for release to the buddy allocator
and assumes that the struct page is initialised.  Parallel initialisation
of struct pages defers initialisation and __free_pages_bootmem can be
called for struct pages that cannot yet map struct page to PFN.  This
patch passes PFN to __free_pages_bootmem with no other functional change.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Nate Zimmer <nzimmer@sgi.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:55 -07:00
Nathan Zimmer
92923ca3aa mm: meminit: only set page reserved in the memblock region
Currently each page struct is set as reserved upon initialization.  This
patch leaves the reserved bit clear and only sets the reserved bit when it
is known the memory was allocated by the bootmem allocator.  This makes it
easier to distinguish between uninitialised struct pages and reserved
struct pages in later patches.

Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Nathan Zimmer <nzimmer@sgi.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:55 -07:00
Robin Holt
1e8ce83cd1 mm: meminit: move page initialization into a separate function
Currently, memmap_init_zone() has all the smarts for initializing a single
page.  A subset of this is required for parallel page initialisation and
so this patch breaks up the monolithic function in preparation.

Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Nathan Zimmer <nzimmer@sgi.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:55 -07:00
Robin Holt
8e7a7f8619 memblock: introduce a for_each_reserved_mem_region iterator
Struct page initialisation had been identified as one of the reasons why
large machines take a long time to boot. Patches were posted a long time ago
to defer initialisation until they were first used.  This was rejected on
the grounds it should not be necessary to hurt the fast paths. This series
reuses much of the work from that time but defers the initialisation of
memory to kswapd so that one thread per node initialises memory local to
that node.

After applying the series and setting the appropriate Kconfig variable I
see this in the boot log on a 64G machine

[    7.383764] kswapd 0 initialised deferred memory in 188ms
[    7.404253] kswapd 1 initialised deferred memory in 208ms
[    7.411044] kswapd 3 initialised deferred memory in 216ms
[    7.411551] kswapd 2 initialised deferred memory in 216ms

On a 1TB machine, I see

[    8.406511] kswapd 3 initialised deferred memory in 1116ms
[    8.428518] kswapd 1 initialised deferred memory in 1140ms
[    8.435977] kswapd 0 initialised deferred memory in 1148ms
[    8.437416] kswapd 2 initialised deferred memory in 1148ms

Once booted the machine appears to work as normal. Boot times were measured
from the time shutdown was called until ssh was available again.  In the
64G case, the boot time savings are negligible. On the 1TB machine, the
savings were 16 seconds.

Nate Zimmer said:

: On an older 8 TB box with lots and lots of cpus the boot time, as
: measure from grub to login prompt, the boot time improved from 1484
: seconds to exactly 1000 seconds.

Waiman Long said:

: I ran a bootup timing test on a 12-TB 16-socket IvyBridge-EX system.  From
: grub menu to ssh login, the bootup time was 453s before the patch and 265s
: after the patch - a saving of 188s (42%).

Daniel Blueman said:

: On a 7TB, 1728-core NumaConnect system with 108 NUMA nodes, we're seeing
: stock 4.0 boot in 7136s.  This drops to 2159s, or a 70% reduction with
: this patchset.  Non-temporal PMD init (https://lkml.org/lkml/2015/4/23/350)
: drops this to 1045s.

This patch (of 13):

As part of initializing struct page's in 2MiB chunks, we noticed that at
the end of free_all_bootmem(), there was nothing which had forced the
reserved/allocated 4KiB pages to be initialized.

This helper function will be used for that expansion.

Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Nate Zimmer <nzimmer@sgi.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Tested-by: Nate Zimmer <nzimmer@sgi.com>
Tested-by: Waiman Long <waiman.long@hp.com>
Tested-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Waiman Long <waiman.long@hp.com>
Cc: Scott Norton <scott.norton@hp.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:55 -07:00
Linus Torvalds
6aaf0da872 md updates for 4.2
A mixed bag
  - a few bug fixes
  - some performance improvement that decrease lock contention
  - some clean-up
 
 Nothing major.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJVi6weAAoJEDnsnt1WYoG50CsP/RqFbZicRSIvzXUURwP+yCP0
 3YZuURj4IXC6Cy/HLX+bZoj1p/b+GIRsZ72fWFJrd2LheaAI6WojCCLlnmXUtI/Y
 LIppF8/A2hfCNbF9cILByvrbzfndeEGK8kvootBDpvD0jlYiGePPAMQY2zx0MAyb
 T4yJ/KiziLniP6x7vqZrQ6I1MRVjeanN6RWXktFtixMpNOKUJe3PiZbUz4VDIrHR
 DaiHCbMjvRIkUWgNY8HmijEt+c8AYia7muqLj359dy2xF1hlUIdCx+61cgFD1zd8
 enKDH3xp+3B9BEgHe+AtxTAzpqSgU93tdhUjGcy/orA+yYjAAcA4ifngrzfE3VKb
 kwQgPh2JvUrubavrcto0hthS5RldrCpDXebOM4aEq+7lDHCwrZ39Qio5+1F7TLt5
 A5E3Eb7dPRdp9T3LrluX8/f7bO/Wbmxvv/RwnSLTpnGQoBWIAqCpQ+e9ro446Gsx
 /phXv3tE78fKj88LgQY/mm8ICeCppmQGLrpmjk9bkaZzqFdzQoURVmPh8QPMuJB4
 iMHpOOKLzrUlW/23rRxaIKwPuFyxlNuLAvyA3ezsymGiZ+SqSeFCEm1jN64EfMCI
 39rpfZt2pcVVOZJ9YeuzZG9wpie96yGZgnVWlP3FPjqRpboXqmtHlYA6EMRtqDAy
 mjSiGDF2bxkT1/YcjELD
 =sXTI
 -----END PGP SIGNATURE-----

Merge tag 'md/4.2' of git://neil.brown.name/md

Pull md updates from Neil Brown:
 "A mixed bag

   - a few bug fixes
   - some performance improvement that decrease lock contention
   - some clean-up

  Nothing major"

* tag 'md/4.2' of git://neil.brown.name/md:
  md: clear Blocked flag on failed devices when array is read-only.
  md: unlock mddev_lock on an error path.
  md: clear mddev->private when it has been freed.
  md: fix a build warning
  md/raid5: ignore released_stripes check
  md/raid5: per hash value and exclusive wait_for_stripe
  md/raid5: split wait_for_stripe and introduce wait_for_quiescent
  wait: introduce wait_event_exclusive_cmd
  md: convert to kstrto*()
  md/raid10: make sync_request_write() call bio_copy_data()
2015-06-29 11:10:56 -07:00
Christoph Lameter
a9730fca99 Fix kmalloc slab creation sequence
This patch restores the slab creation sequence that was broken by commit
4066c33d03 and also reverts the portions that introduced the
KMALLOC_LOOP_XXX macros. Those can never really work since the slab creation
is much more complex than just going from a minimum to a maximum number.

The latest upstream kernel boots cleanly on my machine with a 64 bit x86
configuration under KVM using either SLAB or SLUB.

Fixes: 4066c33d03 ("support the slub_debug boot option")
Reported-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-29 10:49:51 -07:00
Linus Torvalds
88793e5c77 The libnvdimm sub-system introduces, in addition to the libnvdimm-core,
4 drivers / enabling modules:
 
 NFIT:
 Instantiates an "nvdimm bus" with the core and registers memory devices
 (NVDIMMs) enumerated by the ACPI 6.0 NFIT (NVDIMM Firmware Interface
 table).  After registering NVDIMMs the NFIT driver then registers
 "region" devices.  A libnvdimm-region defines an access mode and the
 boundaries of persistent memory media.  A region may span multiple
 NVDIMMs that are interleaved by the hardware memory controller.  In
 turn, a libnvdimm-region can be carved into a "namespace" device and
 bound to the PMEM or BLK driver which will attach a Linux block device
 (disk) interface to the memory.
 
 PMEM:
 Initially merged in v4.1 this driver for contiguous spans of persistent
 memory address ranges is re-worked to drive PMEM-namespaces emitted by
 the libnvdimm-core.  In this update the PMEM driver, on x86, gains the
 ability to assert that writes to persistent memory have been flushed all
 the way through the caches and buffers in the platform to persistent
 media.  See memcpy_to_pmem() and wmb_pmem().
 
 BLK:
 This new driver enables access to persistent memory media through "Block
 Data Windows" as defined by the NFIT.  The primary difference of this
 driver to PMEM is that only a small window of persistent memory is
 mapped into system address space at any given point in time.  Per-NVDIMM
 windows are reprogrammed at run time, per-I/O, to access different
 portions of the media.  BLK-mode, by definition, does not support DAX.
 
 BTT:
 This is a library, optionally consumed by either PMEM or BLK, that
 converts a byte-accessible namespace into a disk with atomic sector
 update semantics (prevents sector tearing on crash or power loss).  The
 sinister aspect of sector tearing is that most applications do not know
 they have a atomic sector dependency.  At least today's disk's rarely
 ever tear sectors and if they do one almost certainly gets a CRC error
 on access.  NVDIMMs will always tear and always silently.  Until an
 application is audited to be robust in the presence of sector-tearing
 the usage of BTT is recommended.
 
 Thanks to: Ross Zwisler, Jeff Moyer, Vishal Verma, Christoph Hellwig,
 Ingo Molnar, Neil Brown, Boaz Harrosh, Robert Elliott, Matthew Wilcox,
 Andy Rudoff, Linda Knippers, Toshi Kani, Nicholas Moulin, Rafael
 Wysocki, and Bob Moore.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVjZGBAAoJEB7SkWpmfYgC4fkP/j+k6HmSRNU/yRYPyo7CAWvj
 3P5P1i6R6nMZZbjQrQArAXaIyLlFk4sEQDYsciR6dmslhhFZAkR2eFwVO5rBOyx3
 QN0yxEpyjJbroRFUrV/BLaFK4cq2oyJAFFHs0u7/pLHBJ4MDMqfRKAMtlnBxEkTE
 LFcqXapSlvWitSbjMdIBWKFEvncaiJ2mdsFqT4aZqclBBTj00eWQvEG9WxleJLdv
 +tj7qR/vGcwOb12X5UrbQXgwtMYos7A6IzhHbqwQL8IrOcJ6YB8NopJUpLDd7ZVq
 KAzX6ZYMzNueN4uvv6aDfqDRLyVL7qoxM9XIjGF5R8SV9sF2LMspm1FBpfowo1GT
 h2QMr0ky1nHVT32yspBCpE9zW/mubRIDtXxEmZZ53DIc4N6Dy9jFaNVmhoWtTAqG
 b9pndFnjUzzieCjX5pCvo2M5U6N0AQwsnq76/CasiWyhSa9DNKOg8MVDRg0rbxb0
 UvK0v8JwOCIRcfO3qiKcx+02nKPtjCtHSPqGkFKPySRvAdb+3g6YR26CxTb3VmnF
 etowLiKU7HHalLvqGFOlDoQG6viWes9Zl+ZeANBOCVa6rL2O7ZnXJtYgXf1wDQee
 fzgKB78BcDjXH4jHobbp/WBANQGN/GF34lse8yHa7Ym+28uEihDvSD1wyNLnefmo
 7PJBbN5M5qP5tD0aO7SZ
 =VtWG
 -----END PGP SIGNATURE-----

Merge tag 'libnvdimm-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm

Pull libnvdimm subsystem from Dan Williams:
 "The libnvdimm sub-system introduces, in addition to the
  libnvdimm-core, 4 drivers / enabling modules:

  NFIT:
    Instantiates an "nvdimm bus" with the core and registers memory
    devices (NVDIMMs) enumerated by the ACPI 6.0 NFIT (NVDIMM Firmware
    Interface table).

    After registering NVDIMMs the NFIT driver then registers "region"
    devices.  A libnvdimm-region defines an access mode and the
    boundaries of persistent memory media.  A region may span multiple
    NVDIMMs that are interleaved by the hardware memory controller.  In
    turn, a libnvdimm-region can be carved into a "namespace" device and
    bound to the PMEM or BLK driver which will attach a Linux block
    device (disk) interface to the memory.

  PMEM:
    Initially merged in v4.1 this driver for contiguous spans of
    persistent memory address ranges is re-worked to drive
    PMEM-namespaces emitted by the libnvdimm-core.

    In this update the PMEM driver, on x86, gains the ability to assert
    that writes to persistent memory have been flushed all the way
    through the caches and buffers in the platform to persistent media.
    See memcpy_to_pmem() and wmb_pmem().

  BLK:
    This new driver enables access to persistent memory media through
    "Block Data Windows" as defined by the NFIT.  The primary difference
    of this driver to PMEM is that only a small window of persistent
    memory is mapped into system address space at any given point in
    time.

    Per-NVDIMM windows are reprogrammed at run time, per-I/O, to access
    different portions of the media.  BLK-mode, by definition, does not
    support DAX.

  BTT:
    This is a library, optionally consumed by either PMEM or BLK, that
    converts a byte-accessible namespace into a disk with atomic sector
    update semantics (prevents sector tearing on crash or power loss).

    The sinister aspect of sector tearing is that most applications do
    not know they have a atomic sector dependency.  At least today's
    disk's rarely ever tear sectors and if they do one almost certainly
    gets a CRC error on access.  NVDIMMs will always tear and always
    silently.  Until an application is audited to be robust in the
    presence of sector-tearing the usage of BTT is recommended.

  Thanks to: Ross Zwisler, Jeff Moyer, Vishal Verma, Christoph Hellwig,
  Ingo Molnar, Neil Brown, Boaz Harrosh, Robert Elliott, Matthew Wilcox,
  Andy Rudoff, Linda Knippers, Toshi Kani, Nicholas Moulin, Rafael
  Wysocki, and Bob Moore"

* tag 'libnvdimm-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm: (33 commits)
  arch, x86: pmem api for ensuring durability of persistent memory updates
  libnvdimm: Add sysfs numa_node to NVDIMM devices
  libnvdimm: Set numa_node to NVDIMM devices
  acpi: Add acpi_map_pxm_to_online_node()
  libnvdimm, nfit: handle unarmed dimms, mark namespaces read-only
  pmem: flag pmem block devices as non-rotational
  libnvdimm: enable iostat
  pmem: make_request cleanups
  libnvdimm, pmem: fix up max_hw_sectors
  libnvdimm, blk: add support for blk integrity
  libnvdimm, btt: add support for blk integrity
  fs/block_dev.c: skip rw_page if bdev has integrity
  libnvdimm: Non-Volatile Devices
  tools/testing/nvdimm: libnvdimm unit test infrastructure
  libnvdimm, nfit, nd_blk: driver for BLK-mode access persistent memory
  nd_btt: atomic sector updates
  libnvdimm: infrastructure for btt devices
  libnvdimm: write blk label set
  libnvdimm: write pmem label set
  libnvdimm: blk labels and namespace instantiation
  ...
2015-06-29 10:34:42 -07:00
Linus Torvalds
1bc5e157ed dmaengine updates for 4.2-rc1
This time we have support for few new devices, few new features and odd
 fixes spread thru the subsystem.
 
 New devices added
 - support for CSRatlas7 dma controller
 - Allwinner H3(sun8i) controller
 - TI DMA crossbar driver on DRA7x
 - new pxa driver
 
 New features added:
 - memset support is bought back now that we have a user in xdmac controller
 - interleaved transfers support different source and destination strides
 - supporting DMA routers and configuration thru DT
 - support for reusing descriptors
 - xdmac memset and interleaved transfer support
 - hdmac support for interleaved transfers
 - omap-dma support for memcpy
 
 Others
 - Constify platform_device_id
 - mv_xor fixes and improvements
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVjsgRAAoJEHwUBw8lI4NHcu8QAMw6EMPSD+tXWr0eDKhZm3zr
 9rURBLXaVKjcboY78uvcZvtzC9PB5AVexoTt7K2zKkeF24t8hIz7nVBAnTqLtd00
 tEoJpDEIxtmRyKkCPpF7LvbVVFh+qD2+66Gf67LMb0UXzOFKsrdAdrfNtST8ezUl
 rQU95ZmZfW1CfCDg0zaM9ipxZWB54txR51Wf1C14Y5SzKWVHSaD7jgAqhA81WPLF
 iIOqGY9VyOh3Ry58ON/x/Q8lOGfMEocXs9+FLa1tMFrO3vKSQB1lPN1NfwbnvZKy
 Oqh+1sqdGwPUoQBEGZfBHcYvVgyX4FC4d8V6BIBPVD3PGt3oQJ6+pVom9ufnDtaQ
 3cxbpNt+n0FywIKEZrIxe96kHrkb7FWL17p3ZuA7n4qmEHt5pabFjqEBS/isqpzB
 CiVJDzh3x3LOlL4zzvp303a/Yn/fnuDJpa1Zfw45uYZgMkyNlatd1Llrxm2Z24j8
 g56Jve+JXx17j1b5yjSVcuWR9QOwBrqJncbFVx7rGLjo755ex24pXEMccvMy2BCD
 x/le8obIGsY3jAU/4k+eJSrI5RLsAins5tCicrL3d12elPCcSlPCR8FyLbNDyFIV
 K67hOmVrkJrqsLVoRtFxEwaLJF1M1DGstjPr42G2W82pF4IbHEF1oHRqAhsXY6xB
 +PStPU1krDOu/nTJOPOm
 =VM4w
 -----END PGP SIGNATURE-----

Merge tag 'dmaengine-4.2-rc1' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine updates from Vinod Koul:
 "This time we have support for few new devices, few new features and
  odd fixes spread thru the subsystem.

  New devices added:
   - support for CSRatlas7 dma controller
   - Allwinner H3(sun8i) controller
   - TI DMA crossbar driver on DRA7x
   - new pxa driver

  New features added:
   - memset support is bought back now that we have a user in xdmac controller
   - interleaved transfers support different source and destination strides
   - supporting DMA routers and configuration thru DT
   - support for reusing descriptors
   - xdmac memset and interleaved transfer support
   - hdmac support for interleaved transfers
   - omap-dma support for memcpy

  Others:
   - Constify platform_device_id
   - mv_xor fixes and improvements"

* tag 'dmaengine-4.2-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (46 commits)
  dmaengine: xgene: fix file permission
  dmaengine: fsl-edma: clear pending interrupts on initialization
  dmaengine: xdmac: Add memset support
  Documentation: dmaengine: document DMA_CTRL_ACK
  dmaengine: virt-dma: don't always free descriptor upon completion
  dmaengine: Revert "drivers/dma: remove unused support for MEMSET operations"
  dmaengine: hdmac: Implement interleaved transfers
  dmaengine: Move icg helpers to global header
  dmaengine: mv_xor: improve descriptors list handling and reduce locking
  dmaengine: mv_xor: Enlarge descriptor pool size
  dmaengine: mv_xor: add support for a38x command in descriptor mode
  dmaengine: mv_xor: Rename function for consistent naming
  dmaengine: mv_xor: bug fix for racing condition in descriptors cleanup
  dmaengine: pl330: fix wording in mcbufsz message
  dmaengine: sirf: add CSRatlas7 SoC support
  dmaengine: xgene-dma: Fix "incorrect type in assignement" warnings
  dmaengine: fix kernel-doc documentation
  dmaengine: pxa_dma: add support for legacy transition
  dmaengine: pxa_dma: add debug information
  dmaengine: pxa: add pxa dmaengine driver
  ...
2015-06-29 09:44:45 -07:00
Linus Torvalds
f199b663fc Pair of ia64 cleanups
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVjbbrAAoJEKurIx+X31iBGbIP/j5fzf73ekHoZqtA4/2oy533
 YnT2b8Mnl30GqUhLub9bc1UIU9qu0YABxZSIMPCKiqNNDJIcVyNZhVhYpIbZnVXV
 L7v/yQxNMEEniOYrVbBZWaYnI9O6SvvOhBj0NXDiA7+VFJuzK6UrpV1ZajIl/mh2
 gfarD0FyDLaMPIyjmVNnRDSftDRGwlAW7Ea9Z8PSRLDB2OH+3yZpePDqpQOVrbSZ
 dlqE/c75XrwYaFKU3VHsHiUhfeygiuNo4V9naZxgAcAxs7H8Zfkgt6QhhSlblpBp
 8yIdo+cBzrLOmA7HdmXtKROM9cZTfr9CfJglq7tbfIZ7xY76pRw8mDXaq8/9/iXr
 aFpsbc00O9U3lOvDxe9P9DYbZeYkb50oHbbvkKxGbJ6jCVhaZ3axfSXT1xVx5+Mc
 OfZKqLFkUNYZnzI359tSEK0uVVaucVMl/tsQi47xQ055BTy/fyuaISinU4AretVx
 CLnFB8insa6Yf9WkYFs3Hys3HoEokOW4MVuBoIeumAoSLUaO3uljog4vcZ+cVBRc
 hSXlJpxQMIZIcIQVWNXhr5Cg/eempGFPnvNqduJEKq2VHWvbM2+brx2+CCOW9cSw
 eaQI6Il1EJeU2aOsur0VSMjYBqxXSExtWxUvLNTkI/mklidIM1w5m8ug0YEmKHj9
 ii5wDfsb1vp4xxN1/R0f
 =H/9f
 -----END PGP SIGNATURE-----

Merge tag 'please-pull-misc-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux

Pull ia64 updates from Tony Luck:
 "Pair of ia64 cleanups"

* tag 'please-pull-misc-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  ia64: Use setup_timer
  ia64: export flush_icache_range for module use
2015-06-29 09:25:14 -07:00
Linus Torvalds
d93a74a91b linux-kselftest-4.2-rc1
This update adds two new test suites: futex and seccomp.
 In addition, it includes fixes for bugs in timers, other
 tests, and compile framework. It introduces new quicktest
 feature to enable users to choose to run tests that complete
 in a short time..
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVjagPAAoJEAsCRMQNDUMcAwkQAJ3Sk59zj+slDYxQ9TcckX6m
 n5YcqjCd7vxHu163f2R9wH+cxnS0LSn0bq79IHvTUYpr36wGEKpws7BLecKRlIUA
 0t1mpVcgEjT2tc8XhAlAGtXJ0FV7idQSzyJnlTTOdO6MyZkuJW9L+CL6q3Uzcfm5
 KroeZC+m6ZulUiYlpIc9epltO9l+szq+dJouaDan35oCAGOjV1VgBKfatAa1zmeX
 d5NM0lO7y4gAHwLvlMhDszAf5E5vSv7S4YfnHftV5ITjb9KQJcaluVnmsy8kaV+J
 Mv4KL4lPMiIZWTn4VWjiHsR48oXw5xXPfW9AhNz6UTxwFlgX3D/EVfBtCIJ1Arq0
 PmvpWuKOWBBbteEAQHUCHj/9X3VoX5Lrt9fps++/2+trwKbrS1qJWeyZuSPhbtOp
 qKbquIQpvzStg60igKcDu8E6vdDdHDY1hPPOR/n8izH8ZGpXA/K0SRUOAa2aI6ZI
 I3PoH38Rlz+BZsEz9uU4zIOEOpl4Js6n6GYvh0MRuT2bzhjpF+rvFd1ej/zw0r62
 OGZp9n68ZLwktPEvagXT4pFJQuPcJuauW7g8nhH+jU+6LAJh8pRGDBx9uBuCTWti
 DHX6bBqosWBMjlI6i073UE7lmnLB9hxtirZOrkWf7NkLl53pOiVg7F1vQx8pZRpU
 Qir9+ypbuRnadWaz2MB2
 =co5w
 -----END PGP SIGNATURE-----

Merge tag 'linux-kselftest-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest update from Shuah Khan:
 "This update adds two new test suites: futex and seccomp.

  In addition, it includes fixes for bugs in timers, other tests, and
  compile framework.  It introduces new quicktest feature to enable
  users to choose to run tests that complete in a short time"

* tag 'linux-kselftest-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: add quicktest support
  selftests: add seccomp suite
  selftest, x86: fix incorrect comment
  tools selftests: Fix 'clean' target with make 3.81
  selftests/futex: Add .gitignore
  kselftest: Add exit code defines
  selftests: Add futex tests to the top-level Makefile
  selftests/futex: Increment ksft pass and fail counters
  selftests/futex: Update Makefile to use lib.mk
  selftests: Add futex functional tests
  kselftests: timers: Check _ALARM clockids are supported before suspending
  kselftests: timers: Ease alarmtimer-suspend unreasonable latency value
  kselftests: timers: Increase delay between suspends in alarmtimer-suspend
  selftests/exec: do not install subdir as it is already created
  selftests/ftrace: install test.d
  selftests: copy TEST_DIRS to INSTALL_PATH
  Test compaction of mlocked memory
  selftests/mount: output WARN messages when mount test skipped
  selftests/timers: Make git ignore all binaries in timers test suite
2015-06-29 09:11:10 -07:00
Linus Torvalds
c63f887bda Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu updates from Greg Ungerer:
 "Only a couple of small changes.

  Improved the m68knommu MAINTAINERS entry to make it clearer which m68k
  parts this applies to, and a print format clean up"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: improve m68knommu MAINTAINERS entry
  m68k: Use vsprintf %pM extension
2015-06-28 16:52:47 -07:00
Linus Torvalds
21dc2e6c6d Merge branch 'for-linus-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML updates from Richard Weinberger:

 - remove hppfs ("HonePot ProcFS")

 - initial support for musl libc

 - uaccess cleanup

 - random cleanups and bug fixes all over the place

* 'for-linus-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: (21 commits)
  um: Don't pollute kernel namespace with uapi
  um: Include sys/types.h for makedev(), major(), minor()
  um: Do not use stdin and stdout identifiers for struct members
  um: Do not use __ptr_t type for stack_t's .ss pointer
  um: Fix mconsole dependency
  um: Handle tracehook_report_syscall_entry() result
  um: Remove copy&paste code from init.h
  um: Stop abusing __KERNEL__
  um: Catch unprotected user memory access
  um: Fix warning in setup_signal_stack_si()
  um: Rework uaccess code
  um: Add uaccess.h to ldt.c
  um: Add uaccess.h to syscalls_64.c
  um: Add asm/elf.h to vma.c
  um: Cleanup mem_32/64.c headers
  um: Remove hppfs
  um: Move syscall() declaration into os.h
  um: kernel: ksyms: Export symbol syscall() for fixing modpost issue
  um/os-Linux: Use char[] for syscall_stub declarations
  um: Use char[] for linker script address declarations
  ...
2015-06-28 13:55:08 -07:00
Linus Torvalds
b779157dd3 VFIO updates for v4.2
- Fix race with device reference versus driver release (Alex Williamson)
 - Add reset hooks and Calxeda xgmac reset for vfio-platform (Eric Auger)
 - Enable vfio-platform for ARM64 (Eric Auger)
 - Tag Baptiste Reynal as vfio-platform sub-maintainer (Alex Williamson)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVjaiUAAoJECObm247sIsiRJQP/RiqcYg9uDGbBt8Gi+Qi2BmG
 KrVqG/ty18CZgyis01GZa5O8bL2ViQFAwfpnIJ6l5v4IQAYUUPlfy6Gy9ZgotQir
 U5ot4ABT9KGqJyjkDixvfUmg5M1gj1euO/xC+KVMpnxN0tC1wbymtAahzd3/RXyq
 5cef/cran5bwnh2RtAN/rFkbjZBuqppVZJJV7uyOd69HXhktrZw5skQssL/61+vT
 znww9H6WT/Qk60haQrcD+SVqAaPv6Tx8bu1LVZ1Zc/rWVxJ2HisOp5dTxGeRnaSu
 PtMfOndgtYwe5fBaYyNjWluJLpBzY7b5UvHtsZ52hPXvlgkKSMrfCJxM4BQQSekW
 txmeV6LpQsm+Nq0+sIOFph8h/LzZaebvMsc5YnLamixGb/mAxbbr31yGjokTuS4F
 ndKUR+9/mFrdcqeBT4UD1Yt45YHl7bRZ9AWKJIC1TstrTW+1rEZ49r71PLea6y4f
 SJJ+eCvhYr/eebvrsfePqzeo1X+S8HNTgCXrSlqZdohS21qtnsh4g/CaOxI2UVt8
 zaZosxNQLzpNK/Z8s7MZpCMenWZsq2frcckROeEgNKdPntwkbVT4MG3LBrWvtuBU
 HGAKfWCGAjfIIN8ZBUSFtIqua/kXCcec99CcYYQOtv16UbmhadAPoUlMur3HI9T9
 S0vWtIKTsRa8ymyrGBDp
 =/gWA
 -----END PGP SIGNATURE-----

Merge tag 'vfio-v4.2-rc1' of git://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

 - fix race with device reference versus driver release (Alex Williamson)

 - add reset hooks and Calxeda xgmac reset for vfio-platform (Eric Auger)

 - enable vfio-platform for ARM64 (Eric Auger)

 - tag Baptiste Reynal as vfio-platform sub-maintainer (Alex Williamson)

* tag 'vfio-v4.2-rc1' of git://github.com/awilliam/linux-vfio:
  MAINTAINERS: Add vfio-platform sub-maintainer
  VFIO: platform: enable ARM64 build
  VFIO: platform: Calxeda xgmac reset module
  VFIO: platform: populate the reset function on probe
  VFIO: platform: add reset callback
  VFIO: platform: add reset struct and lookup table
  vfio/pci: Fix racy vfio_device_get_from_dev() call
2015-06-28 12:32:13 -07:00
Linus Torvalds
4a10a91756 Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit
Pull audit updates from Paul Moore:
 "Four small audit patches for v4.2, all bug fixes.  Only 10 lines of
  change this time so very unremarkable, the patch subject lines pretty
  much tell the whole story"

* 'upstream' of git://git.infradead.org/users/pcmoore/audit:
  audit: Fix check of return value of strnlen_user()
  audit: obsolete audit_context check is removed in audit_filter_rules()
  audit: fix for typo in comment to function audit_log_link_denied()
  lsm: rename duplicate labels in LSM_AUDIT_DATA_TASK audit message type
2015-06-27 13:53:16 -07:00
Linus Torvalds
e22619a29f Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris:
 "The main change in this kernel is Casey's generalized LSM stacking
  work, which removes the hard-coding of Capabilities and Yama stacking,
  allowing multiple arbitrary "small" LSMs to be stacked with a default
  monolithic module (e.g.  SELinux, Smack, AppArmor).

  See
        https://lwn.net/Articles/636056/

  This will allow smaller, simpler LSMs to be incorporated into the
  mainline kernel and arbitrarily stacked by users.  Also, this is a
  useful cleanup of the LSM code in its own right"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (38 commits)
  tpm, tpm_crb: fix le64_to_cpu conversions in crb_acpi_add()
  vTPM: set virtual device before passing to ibmvtpm_reset_crq
  tpm_ibmvtpm: remove unneccessary message level.
  ima: update builtin policies
  ima: extend "mask" policy matching support
  ima: add support for new "euid" policy condition
  ima: fix ima_show_template_data_ascii()
  Smack: freeing an error pointer in smk_write_revoke_subj()
  selinux: fix setting of security labels on NFS
  selinux: Remove unused permission definitions
  selinux: enable genfscon labeling for sysfs and pstore files
  selinux: enable per-file labeling for debugfs files.
  selinux: update netlink socket classes
  signals: don't abuse __flush_signals() in selinux_bprm_committed_creds()
  selinux: Print 'sclass' as string when unrecognized netlink message occurs
  Smack: allow multiple labels in onlycap
  Smack: fix seq operations in smackfs
  ima: pass iint to ima_add_violation()
  ima: wrap event related data to the new ima_event_data structure
  integrity: add validity checks for 'path' parameter
  ...
2015-06-27 13:26:03 -07:00
Linus Torvalds
78c10e556e Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:

 - Improvements to the tlb_dump code
 - KVM fixes
 - Add support for appended DTB
 - Minor improvements to the R12000 support
 - Minor improvements to the R12000 support
 - Various platform improvments for BCM47xx
 - The usual pile of minor cleanups
 - A number of BPF fixes and improvments
 - Some improvments to the support for R3000 and DECstations
 - Some improvments to the ATH79 platform support
 - A major patchset for the JZ4740 SOC adding support for the CI20 platform
 - Add support for the Pistachio SOC
 - Minor BMIPS/BCM63xx platform support improvments.
 - Avoid "SYNC 0" as memory barrier when unlocking spinlocks
 - Add support for the XWR-1750 board.
 - Paul's __cpuinit/__cpuinitdata cleanups.
 - New Malta CPU board support large memory so enable ZONE_DMA32.

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (131 commits)
  MIPS: spinlock: Adjust arch_spin_lock back-off time
  MIPS: asmmacro: Ensure 64-bit FP registers are used with MSA
  MIPS: BCM47xx: Simplify handling SPROM revisions
  MIPS: Cobalt Don't use module_init in non-modular MTD registration.
  MIPS: BCM47xx: Move NVRAM driver to the drivers/firmware/
  MIPS: use for_each_sg()
  MIPS: BCM47xx: Don't select BCMA_HOST_PCI
  MIPS: BCM47xx: Add helper variable for storing NVRAM length
  MIPS: IRQ/IP27: Move IRQ allocation API to platform code.
  MIPS: Replace smp_mb with release barrier function in unlocks.
  MIPS: i8259: DT support
  MIPS: Malta: Basic DT plumbing
  MIPS: include errno.h for ENODEV in mips-cm.h
  MIPS: Define GCR_GIC_STATUS register fields
  MIPS: BPF: Introduce BPF ASM helpers
  MIPS: BPF: Use BPF register names to describe the ABI
  MIPS: BPF: Move register definition to the BPF header
  MIPS: net: BPF: Replace RSIZE with SZREG
  MIPS: BPF: Free up some callee-saved registers
  MIPS: Xtalk: Update xwidget.h with known Xtalk device numbers
  ...
2015-06-27 12:44:34 -07:00
Linus Torvalds
d2c3ac7e7e Merge branch 'for-4.2' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields:
 "A relatively quiet cycle, with a mix of cleanup and smaller bugfixes"

* 'for-4.2' of git://linux-nfs.org/~bfields/linux: (24 commits)
  sunrpc: use sg_init_one() in krb5_rc4_setup_enc/seq_key()
  nfsd: wrap too long lines in nfsd4_encode_read
  nfsd: fput rd_file from XDR encode context
  nfsd: take struct file setup fully into nfs4_preprocess_stateid_op
  nfsd: refactor nfs4_preprocess_stateid_op
  nfsd: clean up raparams handling
  nfsd: use swap() in sort_pacl_range()
  rpcrdma: Merge svcrdma and xprtrdma modules into one
  svcrdma: Add a separate "max data segs macro for svcrdma
  svcrdma: Replace GFP_KERNEL in a loop with GFP_NOFAIL
  svcrdma: Keep rpcrdma_msg fields in network byte-order
  svcrdma: Fix byte-swapping in svc_rdma_sendto.c
  nfsd: Update callback sequnce id only CB_SEQUENCE success
  nfsd: Reset cb_status in nfsd4_cb_prepare() at retrying
  svcrdma: Remove svc_rdma_xdr_decode_deferred_req()
  SUNRPC: Move EXPORT_SYMBOL for svc_process
  uapi/nfs: Add NFSv4.1 ACL definitions
  nfsd: Remove dead declarations
  nfsd: work around a gcc-5.1 warning
  nfsd: Checking for acl support does not require fetching any acls
  ...
2015-06-27 10:14:39 -07:00
Linus Torvalds
546fac6073 GFS2: merge window
Here is a list of patches we've accumulated for GFS2 for the current upstream
 merge window. We have a good mixture this time. Here are some of the features:
 
 1. Fix a problem with RO mounts writing to the journal.
 2. Further improvements to quotas on GFS2.
 3. Added support for rename2 and RENAME_EXCHANGE on GFS2.
 4. Increase performance by making glock lru_list less of a bottleneck.
 5. Increase performance by avoiding unnecessary buffer_head releases.
 6. Increase performance by using average glock round trip time from all CPUs.
 7. Fixes for some compiler warnings and minor white space issues.
 8. Other misc. bug fixes
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEbBAABAgAGBQJVjFEXAAoJENeLYdPf93o7zqoH926XV0oddQCsGCYg6gq7OL+c
 /4q2y9x31hkv5XbPTNcahqR6UsK8JcbcdZD+XAqTftL4Q789FDAdWbYS++45qz8D
 YuUFgZd2bc75Ge2qqacgEdv85YRLtws1fRnI6DUpjfN1qJ9kJXX+gk+BSve6rh6V
 Qyv8a4DRIw1En5fwt0R6yIg0LI/ywPhYeVlxo6WUoK8fiL/i3eNd57Jgv5YQ6ly+
 ZyqH8w1m0kE4IkIiTFgmIpvepiWLBCA3mPOfHfE3QxbDKpXe4uFsMdnxghmP5bFN
 3H9syJQNFqjs+ooKma/fE2VmpxQ5/5lAs0/ms+ECW3GvBseTll8Iln7y4NwgAQ==
 =ITwD
 -----END PGP SIGNATURE-----

Merge tag 'gfs2-merge-window' of git://git.kernel.org:/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull GFS2 updates from Bob Peterson:
 "Here are the patches we've accumulated for GFS2 for the current
  upstream merge window.  We have a good mixture this time.  Here are
  some of the features:

   - Fix a problem with RO mounts writing to the journal.

   - Further improvements to quotas on GFS2.

   - Added support for rename2 and RENAME_EXCHANGE on GFS2.

   - Increase performance by making glock lru_list less of a bottleneck.

   - Increase performance by avoiding unnecessary buffer_head releases.

   - Increase performance by using average glock round trip time from all CPUs.

   - Fixes for some compiler warnings and minor white space issues.

   - Other misc bug fixes"

* tag 'gfs2-merge-window' of git://git.kernel.org:/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  GFS2: Don't brelse rgrp buffer_heads every allocation
  GFS2: Don't add all glocks to the lru
  gfs2: Don't support fallocate on jdata	files
  gfs2: s64 cast for negative quota value
  gfs2: limit quota log messages
  gfs2: fix quota updates on block boundaries
  gfs2: fix shadow warning in gfs2_rbm_find()
  gfs2: kerneldoc warning fixes
  gfs2: convert simple_str to kstr
  GFS2: make sure S_NOSEC flag isn't overwritten
  GFS2: add support for rename2 and RENAME_EXCHANGE
  gfs2: handle NULL rgd in set_rgrp_preferences
  GFS2: inode.c: indent with TABs, not spaces
  GFS2: mark the journal idle to fix ro mounts
  GFS2: Average in only non-zero round-trip times for congestion stats
  GFS2: Use average srttb value in congestion calculations
2015-06-27 09:47:46 -07:00
Linus Torvalds
ebeaa8ddb3 Revert "jbd2: speedup jbd2_journal_dirty_metadata()"
This reverts commit 2143c1965a.

This commit seems to be the cause of the following jbd2 assertion
failure:

   ------------[ cut here ]------------
   kernel BUG at fs/jbd2/transaction.c:1325!
   invalid opcode: 0000 [#1] SMP
   Modules linked in: bnep bluetooth fuse ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 ...
   CPU: 7 PID: 5509 Comm: gcc Not tainted 4.1.0-10944-g2a298679b411 #1
   Hardware name:                  /DH87RL, BIOS RLH8710H.86A.0327.2014.0924.1645 09/24/2014
   task: ffff8803bf866040 ti: ffff880308528000 task.ti: ffff880308528000
   RIP: jbd2_journal_dirty_metadata+0x237/0x290
   Call Trace:
     __ext4_handle_dirty_metadata+0x43/0x1f0
     ext4_handle_dirty_dirent_node+0xde/0x160
     ? jbd2_journal_get_write_access+0x36/0x50
     ext4_delete_entry+0x112/0x160
     ? __ext4_journal_start_sb+0x52/0xb0
     ext4_unlink+0xfa/0x260
     vfs_unlink+0xec/0x190
     do_unlinkat+0x24a/0x270
     SyS_unlink+0x11/0x20
     entry_SYSCALL_64_fastpath+0x12/0x6a
   ---[ end trace ae033ebde8d080b4 ]---

which is not easily reproducible (I've seen it just once, and then Ted
was able to reproduce it once).  Revert it while Ted and Jan try to
figure out what is wrong.

Cc: Jan Kara <jack@suse.cz>
Acked-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-27 09:41:50 -07:00
Linus Torvalds
e0dd880a54 Merge branch 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue updates from Tejun Heo:
 "Most of the changes are around implementing and fixing fallouts from
  sysfs and internal interface to limit the CPUs available to all
  unbound workqueues to help isolating CPUs.  It needs more work as
  ordered workqueues can roam unrestricted but still is a significant
  improvement"

* 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: fix typos in comments
  workqueue: move flush_scheduled_work() to workqueue.h
  workqueue: remove the lock from wq_sysfs_prep_attrs()
  workqueue: remove the declaration of copy_workqueue_attrs()
  workqueue: ensure attrs changes are properly synchronized
  workqueue: separate out and refactor the locking of applying attrs
  workqueue: simplify wq_update_unbound_numa()
  workqueue: wq_pool_mutex protects the attrs-installation
  workqueue: fix a typo
  workqueue: function name in the comment differs from the real function name
  workqueue: fix trivial typo in Documentation/workqueue.txt
  workqueue: Allow modifying low level unbound workqueue cpumask
  workqueue: Create low-level unbound workqueues cpumask
  workqueue: split apply_workqueue_attrs() into 3 stages
2015-06-26 20:12:21 -07:00
Linus Torvalds
bbe179f88d Merge branch 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:

 - threadgroup_lock got reorganized so that its users can pick the
   actual locking mechanism to use.  Its only user - cgroups - is
   updated to use a percpu_rwsem instead of per-process rwsem.

   This makes things a bit lighter on hot paths and allows cgroups to
   perform and fail multi-task (a process) migrations atomically.
   Multi-task migrations are used in several places including the
   unified hierarchy.

 - Delegation rule and documentation added to unified hierarchy.  This
   will likely be the last interface update from the cgroup core side
   for unified hierarchy before lifting the devel mask.

 - Some groundwork for the pids controller which is scheduled to be
   merged in the coming devel cycle.

* 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup: add delegation section to unified hierarchy documentation
  cgroup: require write perm on common ancestor when moving processes on the default hierarchy
  cgroup: separate out cgroup_procs_write_permission() from __cgroup_procs_write()
  kernfs: make kernfs_get_inode() public
  MAINTAINERS: add a cgroup core co-maintainer
  cgroup: fix uninitialised iterator in for_each_subsys_which
  cgroup: replace explicit ss_mask checking with for_each_subsys_which
  cgroup: use bitmask to filter for_each_subsys
  cgroup: add seq_file forward declaration for struct cftype
  cgroup: simplify threadgroup locking
  sched, cgroup: replace signal_struct->group_rwsem with a global percpu_rwsem
  sched, cgroup: reorganize threadgroup locking
  cgroup: switch to unsigned long for bitmasks
  cgroup: reorganize include/linux/cgroup.h
  cgroup: separate out include/linux/cgroup-defs.h
  cgroup: fix some comment typos
2015-06-26 19:50:04 -07:00
Stephen Rothwell
4b703b1d4c power: axp288_charger: fix for API change
Caused by commit 843735b788 ("power: axp288_charger: axp288 charger
driver") from the battery tree interacting with commit 046050f6e6
("extcon: Update the prototype of extcon_register_notifier() with enum
extcon") from the extcon tree.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-26 17:44:09 -07:00
Linus Torvalds
93f0824cae Minor changes for 4.2
- add ref-counting for kernel modules as exporters
 - minor code style fixes
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVjVZEAAoJEAG+/NWsLn5bpj0P/jcGdZ8COA5Z9JTGa/aJFPkq
 HcPwL95jbttI6GEjuilUSNwu1PtQH3puOBBvPFcbHaOQLLchRI+J7vQ517cFAVxq
 rDyuUZLTnrnb15l8afJb5GqQf+CzHcnmPYCTBUjsSfhPJYfMPs34/4Dl4WHFL9YO
 tzqmWBp3o3SMzfNL47ilU4g3jjmaHNP+vq+IYQLcvWHO08c6sNtbyjI/mggT52LD
 foi1Lq/hzS4uOBjBAOWLdmHm4Elq4uMCLyA9eDQW3K+jb912IT5jxuv/eF4NR9TP
 wPA0K66ca529Z93G8B4C+52TTt60jUzJDDH8/5S1Kh1ycCpV+3sArJR/8B5iN82+
 G8FM441JCsQGvRfFEyFbTWmu+I2yiTaCjaiSJ1UnvWPxHQljT15+mL/Y/hrGZD9O
 RtBxTYNWDdhNqLfFLcS3vLwbHAa9KxaM7YX4AKweMxXHgyUEXFcjyX2pfVaI1qVH
 5PirSktRG6y1oiy48f0GgVadayOhOwo+biWbwxd0PYtGI+vJa3I1nLuNPSyRch8z
 AbLEXBmamobrIy5YJp5pMK6GrcriPHl0PGRm+rEyh+A3qX6Lwsr9VOYjjVcAsT3s
 toqrdIPGF4+SC+0MY+tkOCA+u1KO4fmvuSldGys40vFfC+bzh2P4MEN2KzQ9uqUo
 pscJcra0RXdm0z0JvbCU
 =r0yn
 -----END PGP SIGNATURE-----

Merge tag 'dma-buf-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sumits/dma-buf

Pull dma-buf updates from Sumit Semwal:
 "Minor changes for 4.2

   - add ref-counting for kernel modules as exporters
   - minor code style fixes"

* tag 'dma-buf-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sumits/dma-buf:
  dma-buf: Minor coding style fixes
  dma-buf: add ref counting for module as exporter
2015-06-26 17:40:54 -07:00
Linus Torvalds
2a298679b4 USB patches for 4.2-rc1
Here's the big USB patchset for 4.2-rc1.  As is normal these days, the
 majority of changes are in the gadget drivers, with a bunch of other
 small driver changes.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlWNobIACgkQMUfUDdst+ylXtQCgwTnzFBzly+3h1Npa2CWkr/Lw
 TWAAn31qEP28MLjm8iVJLNPwdVd2kt1w
 =hrdz
 -----END PGP SIGNATURE-----

Merge tag 'usb-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here's the big USB patchset for 4.2-rc1.  As is normal these days, the
  majority of changes are in the gadget drivers, with a bunch of other
  small driver changes.

  All of these have been in linux-next with no reported issues"

* tag 'usb-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (175 commits)
  usb: dwc3: Use ASCII space in Kconfig
  usb: chipidea: add work-around for Marvell HSIC PHY startup
  usb: chipidea: allow multiple instances to use default ci_default_pdata
  dt-bindings: Consolidate ChipIdea USB ci13xxx bindings
  phy: add Marvell HSIC 28nm PHY
  phy: Add Marvell USB 2.0 OTG 28nm PHY
  dt-bindings: Add Marvell PXA1928 USB and HSIC PHY bindings
  USB: ssb: use devm_kzalloc
  USB: ssb: fix error handling in ssb_hcd_create_pdev()
  usb: isp1760: check for null return from kzalloc
  cdc-acm: Add support of ATOL FPrint fiscal printers
  usb: chipidea: usbmisc_imx: Remove unneeded semicolon
  USB: usbtmc: add device quirk for Rigol DS6104
  USB: serial: mos7840: Use setup_timer
  phy: twl4030-usb: add ABI documentation
  phy: twl4030-usb: remove incorrect pm_runtime_get_sync() in probe function.
  phy: twl4030-usb: remove pointless 'suspended' test in 'suspend' callback.
  phy: twl4030-usb: make runtime pm more reliable.
  drivers:usb:fsl: Fix compilation error for fsl ehci drv
  usb: renesas_usbhs: Don't disable the pipe if Control write status stage
  ...
2015-06-26 15:59:26 -07:00
Linus Torvalds
8c7febe839 TTY/Serial driver patches for 4.2-rc1
Here's the tty and serial driver patches for 4.2-rc1.
 
 A number of individual driver updates, some code cleanups, and other
 minor things, full details in the shortlog.
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlWNoSAACgkQMUfUDdst+ymxNQCguSEmkAYNDdLyYhdcOqSxJt9u
 U1gAoMThUDoomkx6CTDMU1wn53hxgMk9
 =eCUS
 -----END PGP SIGNATURE-----

Merge tag 'tty-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial driver updates from Greg KH:
 "Here's the tty and serial driver patches for 4.2-rc1.

  A number of individual driver updates, some code cleanups, and other
  minor things, full details in the shortlog.

  All have been in linux-next for a while with no reported issues"

* tag 'tty-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (152 commits)
  Doc: serial-rs485.txt: update RS485 driver interface
  Doc: tty.txt: remove mention of the BKL
  MAINTAINERS: tty: add serial docs directory
  serial: sprd: check for NULL after calling devm_clk_get
  serial: 8250_pci: Correct uartclk for xr17v35x expansion chips
  serial: 8250_pci: Add support for 12 port Exar boards
  serial: 8250_uniphier: add bindings document for UniPhier UART
  serial: core: cleanup in uart_get_baud_rate()
  serial: stm32-usart: Add STM32 USART Driver
  tty/serial: kill off set_irq_flags usage
  tty: move linux/gsmmux.h to uapi
  doc: dt: add documentation for nxp,lpc1850-uart
  serial: 8250: add LPC18xx/43xx UART driver
  serial: 8250_uniphier: add UniPhier serial driver
  serial: 8250_dw: support ACPI platforms with integrated DMA engine
  serial: of_serial: check the return value of clk_prepare_enable()
  serial: of_serial: use devm_clk_get() instead of clk_get()
  serial: earlycon: Add support for big-endian MMIO accesses
  serial: sirf: use hrtimer for data rx
  serial: sirf: correct the fifo empty_bit
  ...
2015-06-26 15:53:22 -07:00
Linus Torvalds
23908db413 Staging driver patches for 4.2-rc1
Here's the big, really big, staging tree patches for 4.2-rc1.
 
 Loads of stuff in here, almost all just coding style fixes / churn, and
 a few new drivers as well, one of which I just disabled from the build a
 few minutes ago due to way too many build warnings.
 
 Other than the one "disable this driver" patch, all of these have been
 in linux-next for quite a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlWNpc0ACgkQMUfUDdst+ym8EgCg0pL1Qcf9Se3jAc96fLt+itpv
 Rd0AoI9uJcq8Qm7d+IXnz3ojLnN9xvN3
 =xt0u
 -----END PGP SIGNATURE-----

Merge tag 'staging-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver updates from Greg KH:
 "Here's the big, really big, staging tree patches for 4.2-rc1.

  Loads of stuff in here, almost all just coding style fixes / churn,
  and a few new drivers as well, one of which I just disabled from the
  build a few minutes ago due to way too many build warnings.

  Other than the one "disable this driver" patch, all of these have been
  in linux-next for quite a while with no reported issues"

* tag 'staging-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1163 commits)
  staging: wilc1000: disable driver due to build warnings
  Staging: rts5208: fix CHANGE_LINK_STATE value
  Staging: sm750fb: ddk750_swi2c.c: Insert spaces before parenthesis
  Staging: sm750fb: ddk750_swi2c.c: Place braces on correct lines
  Staging: sm750fb: ddk750_swi2c.c: Insert spaces around operators
  Staging: sm750fb: ddk750_swi2c.c: Replace spaces with tabs
  Staging: sm750fb: ddk750_swi2c.h: Shorten lines to under 80 characters
  Staging: sm750fb: ddk750_swi2c.h: Replace spaces with tabs
  Staging: sm750fb: modedb.h: Shorten lines to under 80 characters
  Staging: sm750fb: modedb.h: Replace spaces with tabs
  staging: comedi: addi_apci_3120: rename 'this_board' variables
  staging: comedi: addi_apci_1516: rename 'this_board' variables
  staging: comedi: ni_atmio: cleanup ni_getboardtype()
  staging: comedi: vmk80xx: sanity check context used to get the boardinfo
  staging: comedi: vmk80xx: rename 'boardinfo' variables
  staging: comedi: dt3000: rename 'this_board' variables
  staging: comedi: adv_pci_dio: rename 'this_board' variables
  staging: comedi: cb_pcidas64: rename 'thisboard' variables
  staging: comedi: cb_pcidas: rename 'thisboard' variables
  staging: comedi: me4000: rename 'thisboard' variables
  ...
2015-06-26 15:46:08 -07:00
Linus Torvalds
8d7804a2f0 Driver core patches for 4.2-rc1
Here is the driver core / firmware changes for 4.2-rc1.
 
 A number of small changes all over the place in the driver core, and in
 the firmware subsystem.  Nothing really major, full details in the
 shortlog.  Some of it is a bit of churn, given that the platform driver
 probing changes was found to not work well, so they were reverted.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlWNoCQACgkQMUfUDdst+ym4JACdFrrXoMt2pb8nl5gMidGyM9/D
 jg8AnRgdW8ArDA/xOarULd/X43eA3J3C
 =Al2B
 -----END PGP SIGNATURE-----

Merge tag 'driver-core-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the driver core / firmware changes for 4.2-rc1.

  A number of small changes all over the place in the driver core, and
  in the firmware subsystem.  Nothing really major, full details in the
  shortlog.  Some of it is a bit of churn, given that the platform
  driver probing changes was found to not work well, so they were
  reverted.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'driver-core-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (31 commits)
  Revert "base/platform: Only insert MEM and IO resources"
  Revert "base/platform: Continue on insert_resource() error"
  Revert "of/platform: Use platform_device interface"
  Revert "base/platform: Remove code duplication"
  firmware: add missing kfree for work on async call
  fs: sysfs: don't pass count == 0 to bin file readers
  base:dd - Fix for typo in comment to function driver_deferred_probe_trigger().
  base/platform: Remove code duplication
  of/platform: Use platform_device interface
  base/platform: Continue on insert_resource() error
  base/platform: Only insert MEM and IO resources
  firmware: use const for remaining firmware names
  firmware: fix possible use after free on name on asynchronous request
  firmware: check for file truncation on direct firmware loading
  firmware: fix __getname() missing failure check
  drivers: of/base: move of_init to driver_init
  drivers/base: cacheinfo: fix annoying typo when DT nodes are absent
  sysfs: disambiguate between "error code" and "failure" in comments
  driver-core: fix build for !CONFIG_MODULES
  driver-core: make __device_attach() static
  ...
2015-06-26 15:07:37 -07:00
Linus Torvalds
d87823813f Char/Misc driver patches for 4.2-rc1
Here's the big char/misc driver pull request for 4.2-rc1.
 
 Lots of mei, extcon, coresight, uio, mic, and other driver updates in
 here.  Full details in the shortlog.  All of these have been in
 linux-next for some time with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlWNn0gACgkQMUfUDdst+ykCCQCgvdF4F2+Hy9+RATdk22ak1uq1
 JDMAoJTf4oyaIEdaiOKfEIWg9MasS42B
 =H5wD
 -----END PGP SIGNATURE-----

Merge tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here's the big char/misc driver pull request for 4.2-rc1.

  Lots of mei, extcon, coresight, uio, mic, and other driver updates in
  here.  Full details in the shortlog.  All of these have been in
  linux-next for some time with no reported problems"

* tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (176 commits)
  mei: me: wait for power gating exit confirmation
  mei: reset flow control on the last client disconnection
  MAINTAINERS: mei: add mei_cl_bus.h to maintained file list
  misc: sram: sort and clean up included headers
  misc: sram: move reserved block logic out of probe function
  misc: sram: add private struct device and virt_base members
  misc: sram: report correct SRAM pool size
  misc: sram: bump error message level on unclean driver unbinding
  misc: sram: fix device node reference leak on error
  misc: sram: fix enabled clock leak on error path
  misc: mic: Fix reported static checker warning
  misc: mic: Fix randconfig build error by including errno.h
  uio: pruss: Drop depends on ARCH_DAVINCI_DA850 from config
  uio: pruss: Add CONFIG_HAS_IOMEM dependence
  uio: pruss: Include <linux/sizes.h>
  extcon: Redefine the unique id of supported external connectors without 'enum extcon' type
  char:xilinx_hwicap:buffer_icap - change 1/0 to true/false for bool type variable in function buffer_icap_set_configuration().
  Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion
  parport: check exclusive access before register
  w1: use correct lock on error in w1_seq_show()
  ...
2015-06-26 14:51:15 -07:00
Linus Torvalds
e382608254 This patch series contains several clean ups and even a new trace clock
"monitonic raw". Also some enhancements to make the ring buffer even
 faster. But the biggest and most noticeable change is the renaming of
 the ftrace* files, structures and variables that have to deal with
 trace events.
 
 Over the years I've had several developers tell me about their confusion
 with what ftrace is compared to events. Technically, "ftrace" is the
 infrastructure to do the function hooks, which include tracing and also
 helps with live kernel patching. But the trace events are a separate
 entity altogether, and the files that affect the trace events should
 not be named "ftrace". These include:
 
   include/trace/ftrace.h	->	include/trace/trace_events.h
   include/linux/ftrace_event.h	->	include/linux/trace_events.h
 
 Also, functions that are specific for trace events have also been renamed:
 
   ftrace_print_*()		->	trace_print_*()
   (un)register_ftrace_event()	->	(un)register_trace_event()
   ftrace_event_name()		->	trace_event_name()
   ftrace_trigger_soft_disabled()->	trace_trigger_soft_disabled()
   ftrace_define_fields_##call() ->	trace_define_fields_##call()
   ftrace_get_offsets_##call()	->	trace_get_offsets_##call()
 
 Structures have been renamed:
 
   ftrace_event_file		->	trace_event_file
   ftrace_event_{call,class}	->	trace_event_{call,class}
   ftrace_event_buffer		->	trace_event_buffer
   ftrace_subsystem_dir		->	trace_subsystem_dir
   ftrace_event_raw_##call	->	trace_event_raw_##call
   ftrace_event_data_offset_##call->	trace_event_data_offset_##call
   ftrace_event_type_funcs_##call ->	trace_event_type_funcs_##call
 
 And a few various variables and flags have also been updated.
 
 This has been sitting in linux-next for some time, and I have not heard
 a single complaint about this rename breaking anything. Mostly because
 these functions, variables and structures are mostly internal to the
 tracing system and are seldom (if ever) used by anything external to that.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJViYhVAAoJEEjnJuOKh9ldcJ0IAI+mytwoMAN/CWDE8pXrTrgs
 aHlcr1zorSzZ0Lq6lKsWP+V0VGVhP8KWO16vl35HaM5ZB9U+cDzWiGobI8JTHi/3
 eeTAPTjQdgrr/L+ZO1ApzS1jYPhN3Xi5L7xublcYMJjKfzU+bcYXg/x8gRt0QbG3
 S9QN/kBt0JIIjT7McN64m5JVk2OiU36LxXxwHgCqJvVCPHUrriAdIX7Z5KRpEv13
 zxgCN4d7Jiec/FsMW8dkO0vRlVAvudZWLL7oDmdsvNhnLy8nE79UOeHos2c1qifQ
 LV4DeQ+2Hlu7w9wxixHuoOgNXDUEiQPJXzPc/CuCahiTL9N/urQSGQDoOVMltR4=
 =hkdz
 -----END PGP SIGNATURE-----

Merge tag 'trace-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:
 "This patch series contains several clean ups and even a new trace
  clock "monitonic raw".  Also some enhancements to make the ring buffer
  even faster.  But the biggest and most noticeable change is the
  renaming of the ftrace* files, structures and variables that have to
  deal with trace events.

  Over the years I've had several developers tell me about their
  confusion with what ftrace is compared to events.  Technically,
  "ftrace" is the infrastructure to do the function hooks, which include
  tracing and also helps with live kernel patching.  But the trace
  events are a separate entity altogether, and the files that affect the
  trace events should not be named "ftrace".  These include:

    include/trace/ftrace.h         ->    include/trace/trace_events.h
    include/linux/ftrace_event.h   ->    include/linux/trace_events.h

  Also, functions that are specific for trace events have also been renamed:

    ftrace_print_*()               ->    trace_print_*()
    (un)register_ftrace_event()    ->    (un)register_trace_event()
    ftrace_event_name()            ->    trace_event_name()
    ftrace_trigger_soft_disabled() ->    trace_trigger_soft_disabled()
    ftrace_define_fields_##call()  ->    trace_define_fields_##call()
    ftrace_get_offsets_##call()    ->    trace_get_offsets_##call()

  Structures have been renamed:

    ftrace_event_file              ->    trace_event_file
    ftrace_event_{call,class}      ->    trace_event_{call,class}
    ftrace_event_buffer            ->    trace_event_buffer
    ftrace_subsystem_dir           ->    trace_subsystem_dir
    ftrace_event_raw_##call        ->    trace_event_raw_##call
    ftrace_event_data_offset_##call->    trace_event_data_offset_##call
    ftrace_event_type_funcs_##call ->    trace_event_type_funcs_##call

  And a few various variables and flags have also been updated.

  This has been sitting in linux-next for some time, and I have not
  heard a single complaint about this rename breaking anything.  Mostly
  because these functions, variables and structures are mostly internal
  to the tracing system and are seldom (if ever) used by anything
  external to that"

* tag 'trace-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (33 commits)
  ring_buffer: Allow to exit the ring buffer benchmark immediately
  ring-buffer-benchmark: Fix the wrong type
  ring-buffer-benchmark: Fix the wrong param in module_param
  ring-buffer: Add enum names for the context levels
  ring-buffer: Remove useless unused tracing_off_permanent()
  ring-buffer: Give NMIs a chance to lock the reader_lock
  ring-buffer: Add trace_recursive checks to ring_buffer_write()
  ring-buffer: Allways do the trace_recursive checks
  ring-buffer: Move recursive check to per_cpu descriptor
  ring-buffer: Add unlikelys to make fast path the default
  tracing: Rename ftrace_get_offsets_##call() to trace_event_get_offsets_##call()
  tracing: Rename ftrace_define_fields_##call() to trace_event_define_fields_##call()
  tracing: Rename ftrace_event_type_funcs_##call to trace_event_type_funcs_##call
  tracing: Rename ftrace_data_offset_##call to trace_event_data_offset_##call
  tracing: Rename ftrace_raw_##call event structures to trace_event_raw_##call
  tracing: Rename ftrace_trigger_soft_disabled() to trace_trigger_soft_disabled()
  tracing: Rename FTRACE_EVENT_FL_* flags to EVENT_FILE_FL_*
  tracing: Rename struct ftrace_subsystem_dir to trace_subsystem_dir
  tracing: Rename ftrace_event_name() to trace_event_name()
  tracing: Rename FTRACE_MAX_EVENT to TRACE_EVENT_TYPE_MAX
  ...
2015-06-26 14:02:43 -07:00
Linus Torvalds
fcbc1777ce After fixing the previous filter issue reported by Vince Weaver,
I could not come up with a situation where the operand counter (cnt)
 could go below zero, so I added a WARN_ON_ONCE(cnt < 0). Vince was
 able to trigger that warn on with his fuzzer test, but didn't have
 a filter input that caused it.
 
 Later, Sasha Levin was able to trigger that same warning, and was
 able to give me the filter string that triggered it. It was simply
 a single operation ">".
 
 I wrapped the filtering code in a userspace program such that I could
 single step through the logic. With a single operator the operand
 counter can legitimately go below zero, and should be reported to the
 user as an error, but should not produce a kernel warning. The
 WARN_ON_ONCE(cnt < 0) should be just a "if (cnt < 0) break;" and the
 code following it will produce the error message for the user.
 
 While debugging this, I found that there was another bug that let
 the pointer to the filter string go beyond the filter string.
 This too was fixed.
 
 Finally, there was a typo in a stub function that only gets compiled
 if trace events is disabled but tracing is enabled (I'm not even sure
 that's possible).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJVjWh2AAoJEEjnJuOKh9ldOn0IANHPW82++0O87U1pEe3hHnKv
 gSTKiNPVNC3GBt9DHnawA0EuyPfPa+Wj5X2xgrstWA+KRADZErZzdWpzbh/iHosJ
 0kaUFqFcaKBheOSqhHfz3WQshD16pb1lQYbV7vbdzMjpcIpYT3VcuKQq3zQVb5Pr
 njPmgZXK+I9ITYQ8E+DysnTg0+Mo+l/2P/tqnBoIkAVmuZitfJS5okTtVw1GNzyR
 7VRMGBE3G0GxB++57T/xILXjFc9sSGQH5lZgLHQhEh36YgWuDvc0R2FfxDKROmeq
 b/xw68uCO1Hv8oEng6r/UceVtUoaXhf+JamSJqxztBTsjsqR/iXCV78Jac1vnPY=
 =cmr8
 -----END PGP SIGNATURE-----

Merge tag 'trace-fixes-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "This isn't my 4.2 pull request (yet).  I found a few more bugs that I
  would have sent to fix 4.1, but since 4.1 is already out, I'm sending
  this before sending my 4.2 request (which is ready to go).

  After fixing the previous filter issue reported by Vince Weaver, I
  could not come up with a situation where the operand counter (cnt)
  could go below zero, so I added a WARN_ON_ONCE(cnt < 0).  Vince was
  able to trigger that warn on with his fuzzer test, but didn't have a
  filter input that caused it.

  Later, Sasha Levin was able to trigger that same warning, and was able
  to give me the filter string that triggered it.  It was simply a
  single operation ">".

  I wrapped the filtering code in a userspace program such that I could
  single step through the logic.  With a single operator the operand
  counter can legitimately go below zero, and should be reported to the
  user as an error, but should not produce a kernel warning.  The
  WARN_ON_ONCE(cnt < 0) should be just a "if (cnt < 0) break;" and the
  code following it will produce the error message for the user.

  While debugging this, I found that there was another bug that let the
  pointer to the filter string go beyond the filter string.  This too
  was fixed.

  Finally, there was a typo in a stub function that only gets compiled
  if trace events is disabled but tracing is enabled (I'm not even sure
  that's possible)"

* tag 'trace-fixes-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Fix typo from "static inlin" to "static inline"
  tracing/filter: Do not allow infix to exceed end of string
  tracing/filter: Do not WARN on operand count going below zero
2015-06-26 13:56:55 -07:00
Linus Torvalds
099bfbfc7f Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
 "This is the main drm pull request for v4.2.

  I've one other new driver from freescale on my radar, it's been posted
  and reviewed, I'd just like to get someone to give it a last look, so
  maybe I'll send it or maybe I'll leave it.

  There is no major nouveau changes in here, Ben was working on
  something big, and we agreed it was a bit late, there wasn't anything
  else he considered urgent to merge.

  There might be another msm pull for some bits that are waiting on
  arm-soc, I'll see how we time it.

  This touches some "of" stuff, acks are in place except for the fixes
  to the build in various configs,t hat I just applied.

  Summary:

  New drivers:
      - virtio-gpu:
                KMS only pieces of driver for virtio-gpu in qemu.
                This is just the first part of this driver, enough to run
                unaccelerated userspace on. As qemu merges more we'll start
                adding the 3D features for the virgl 3d work.
      - amdgpu:
                a new driver from AMD to driver their newer GPUs. (VI+)
                It contains a new cleaner userspace API, and is a clean
                break from radeon moving forward, that AMD are going to
                concentrate on. It also contains a set of register headers
                auto generated from AMD internal database.

  core:
      - atomic modesetting API completed, enabled by default now.
      - Add support for mode_id blob to atomic ioctl to complete interface.
      - bunch of Displayport MST fixes
      - lots of misc fixes.

  panel:
      - new simple panels
      - fix some long-standing build issues with bridge drivers

  radeon:
      - VCE1 support
      - add a GPU reset counter for userspace
      - lots of fixes.

  amdkfd:
      - H/W debugger support module
      - static user-mode queues
      - support killing all the waves when a process terminates
      - use standard DECLARE_BITMAP

  i915:
      - Add Broxton support
      - S3, rotation support for Skylake
      - RPS booting tuning
      - CPT modeset sequence fixes
      - ns2501 dither support
      - enable cmd parser on haswell
      - cdclk handling fixes
      - gen8 dynamic pte allocation
      - lots of atomic conversion work

  exynos:
      - Add atomic modesetting support
      - Add iommu support
      - Consolidate drm driver initialization
      - and MIC, DECON and MIPI-DSI support for exynos5433

  omapdrm:
      - atomic modesetting support (fixes lots of things in rewrite)

  tegra:
      - DP aux transaction fixes
      - iommu support fix

  msm:
      - adreno a306 support
      - various dsi bits
      - various 64-bit fixes
      - NV12MT support

  rcar-du:
      - atomic and misc fixes

  sti:
      - fix HDMI timing complaince

  tilcdc:
      - use drm component API to access tda998x driver
      - fix module unloading

  qxl:
      - stability fixes"

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (872 commits)
  drm/nouveau: Pause between setting gpu to D3hot and cutting the power
  drm/dp/mst: close deadlock in connector destruction.
  drm: Always enable atomic API
  drm/vgem: Set unique to "vgem"
  of: fix a build error to of_graph_get_endpoint_by_regs function
  drm/dp/mst: take lock around looking up the branch device on hpd irq
  drm/dp/mst: make sure mst_primary mstb is valid in work function
  of: add EXPORT_SYMBOL for of_graph_get_endpoint_by_regs
  ARM: dts: rename the clock of MIPI DSI 'pll_clk' to 'sclk_mipi'
  drm/atomic: Don't set crtc_state->enable manually
  drm/exynos: dsi: do not set TE GPIO direction by input
  drm/exynos: dsi: add support for MIC driver as a bridge
  drm/exynos: dsi: add support for Exynos5433
  drm/exynos: dsi: make use of array for clock access
  drm/exynos: dsi: make use of driver data for static values
  drm/exynos: dsi: add macros for register access
  drm/exynos: dsi: rename pll_clk to sclk_clk
  drm/exynos: mic: add MIC driver
  of: add helper for getting endpoint node of specific identifiers
  drm/exynos: add Exynos5433 decon driver
  ...
2015-06-26 13:18:51 -07:00
Linus Torvalds
22165fa798 - Revert block and DM core changes the removed request-based DM's
ability to handle partial request completions -- otherwise with the
   current SCSI LLDs these changes could lead to silent data corruption.
 
 - Fix two DM version bumps that were missing from the initial 4.2 DM
   pull request (enabled userspace lvm2 to know certain changes have been
   made).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJVjWetAAoJEMUj8QotnQNaEngIAMVwExw0u04jqoW9rUwLDbpr
 PS2A4lh/MGtMqGGPwJp5qiwnKkgQ5/FcxRpslNQYqA6KrIlnjWJhacWl7tOrwqxn
 +WBsHIUwjcpwK2RqxSS3Petb6xDd7A3LfTQVhKV9xKZpZp8Y25a+1MPmUYKsFLBH
 DJ1d9bXPMdN1qjBXBU1rKkVxj6z8iNz/lv24eN0MGyWhfUUTc8lQg3eey3L0BzCc
 siOuupFQXaWIkbawLZrmvPPNm1iMoABC1OPZCTB1AYZYx1rqzEGUR1nZN+qWf6Wf
 rZtAPZehbRzvOaf5jC6tEfAcTF23aPEyp4LD+aAQpbuC/1IBi8a3S8z6PvR5EjA=
 =QY48
 -----END PGP SIGNATURE-----

Merge tag 'dm-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:
 "Apologies for not pressing this request-based DM partial completion
  issue further, it was an oversight on my part.  We'll have to get it
  fixed up properly and revisit for a future release.

   - Revert block and DM core changes the removed request-based DM's
     ability to handle partial request completions -- otherwise with the
     current SCSI LLDs these changes could lead to silent data
     corruption.

   - Fix two DM version bumps that were missing from the initial 4.2 DM
     pull request (enabled userspace lvm2 to know certain changes have
     been made)"

* tag 'dm-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm cache policy smq: fix "default" version to be 1.4.0
  dm: bump the ioctl version to 4.32.0
  Revert "block, dm: don't copy bios for request clones"
  Revert "dm: do not allocate any mempools for blk-mq request-based DM"
2015-06-26 12:35:01 -07:00
Linus Torvalds
a2f54be94f Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
 "This fixes the following issues:

   - move -O0 jitterentropy code into its own file instead of using gcc
     pragma magic.

   - kill testmgr warning for gcm-aes-aesni.

   - fix build failure in old rsa.

  Other minor fixes:

   - ignore asn1 files generated by new rsa.

   - remove unnecessary kzfree NULL checks in jitterentropy.

   - typo fix in akcipher"

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: rsa - add .gitignore for crypto/*.-asn1.[ch] files
  crypto: asymmetric_keys/rsa - Use non-conflicting variable name
  crypto: testmgr - don't print info about missing test for gcm-aes-aesni
  crypto: jitterentropy - Delete unnecessary checks before the function call "kzfree"
  crypto: akcipher - fix spelling cihper -> cipher
  crypto: jitterentropy - avoid compiler warnings
2015-06-26 12:27:48 -07:00
Linus Torvalds
e8a0b37d28 Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
 "Bigger items included in this update are:

   - A series of updates from Arnd for ARM randconfig build failures
   - Updates from Dmitry for StrongARM SA-1100 to move IRQ handling to
     drivers/irqchip/
   - Move ARMs SP804 timer to drivers/clocksource/
   - Perf updates from Mark Rutland in preparation to move the ARM perf
     code into drivers/ so it can be shared with ARM64.
   - MCPM updates from Nicolas
   - Add support for taking platform serial number from DT
   - Re-implement Keystone2 physical address space switch to conform to
     architecture requirements
   - Clean up ARMv7 LPAE code, which goes in hand with the Keystone2
     changes.
   - L2C cleanups to avoid unlocking caches if we're prevented by the
     secure support to unlock.
   - Avoid cleaning a potentially dirty cache containing stale data on
     CPU initialisation
   - Add ARM-only entry point for secondary startup (for machines that
     can only call into a Thumb kernel in ARM mode).  Same thing is also
     done for the resume entry point.
   - Provide arch_irqs_disabled via asm-generic
   - Enlarge ARMv7M vector table
   - Always use BFD linker for VDSO, as gold doesn't accept some of the
     options we need.
   - Fix an incorrect BSYM (for Thumb symbols) usage, and convert all
     BSYM compiler macros to a "badr" (for branch address).
   - Shut up compiler warnings provoked by our cmpxchg() implementation.
   - Ensure bad xchg sizes fail to link"

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (75 commits)
  ARM: Fix build if CLKDEV_LOOKUP is not configured
  ARM: fix new BSYM() usage introduced via for-arm-soc branch
  ARM: 8383/1: nommu: avoid deprecated source register on mov
  ARM: 8391/1: l2c: add options to overwrite prefetching behavior
  ARM: 8390/1: irqflags: Get arch_irqs_disabled from asm-generic
  ARM: 8387/1: arm/mm/dma-mapping.c: Add arm_coherent_dma_mmap
  ARM: 8388/1: tcm: Don't crash when TCM banks are protected by TrustZone
  ARM: 8384/1: VDSO: force use of BFD linker
  ARM: 8385/1: VDSO: group link options
  ARM: cmpxchg: avoid warnings from macro-ized cmpxchg() implementations
  ARM: remove __bad_xchg definition
  ARM: 8369/1: ARMv7M: define size of vector table for Vybrid
  ARM: 8382/1: clocksource: make ARM_TIMER_SP804 depend on GENERIC_SCHED_CLOCK
  ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource
  ARM: 8365/1: introduce sp804_timer_disable and remove arm_timer.h inclusion
  ARM: 8364/1: fix BE32 module loading
  ARM: 8360/1: add secondary_startup_arm prototype in header file
  ARM: 8359/1: correct secondary_startup_arm mode
  ARM: proc-v7: sanitise and document registers around errata
  ARM: proc-v7: clean up MIDR access
  ...
2015-06-26 12:20:00 -07:00
Linus Torvalds
abea962948 ARM: SoC: defconfig updates for v4.2
We keep collecting defconfig updates in a separate branch mostly to encourage
 people to handle them separately and avoid conflicts between different topics.
 
 Most of these are enablement of new SoCs, boards or drivers that have
 come in, or minor config refreshes due to reorderings in Kconfig
 files, etc. I.e. mostly minor churn of various kinds.
 
 Conflicts: None
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVi4RbAAoJEFk3GJrT+8Zl8IkP/3X9+EQrk7zzSEtzpQilWVc+
 r6Usx3TwvrXnmFUhy/Vxwc9f+nsn7cuDXo1ms8OeNq3tY94pHINMsgfLQBEYdamu
 4A73cy0HwYh5lo4XGEWNYAPP70iCAwHaLY0bFvmRcT3skqA9XeVy2uEe4iGy75fc
 tPdfjhFigiFrkeLOa2hy/4h5BkT5adqWFf6IOl+GY13QKdjPBndbeaarHC77bVoM
 yxRQMp2cpx/jsNnN4IuAr1RHCtYC+ENz26TdnOiTYhGGtPUTwmF4qNKDUBykGEAu
 8AVqpujHt3OvfZKWDcxiv5bXJDRrFQqsQDcdVv8jJ6ynUluXKmCX1sdrzs65uB9s
 X7KNtpn8rmDgumaPvJ63oesaZVe2AhTMPFUbq694UPLR9odb/bGyh1ESELlwBqX/
 cVgOTlmD0J2j4MwxWgMdFm1JEg3uFOrkXOotD8yes5e2eh9k9Zl/c6l5fz8kWxLf
 yQj0gc11vdDiCvmbHWvyhW5B/XVB6qZd9UbbY3kpAsxSigfuLqX66qGfGmXqTa8E
 B8DHVQo5leTw+hDMk8ibW1nANXZ28odr3lY2hiUJl0PZg+92Vr7/Gr6eUlJH/1Rh
 Zs6g7jWkvarAKr+NfUon0+cXoJIqLYJeOqqLmMpNn8k9qQdsvA4r/rIh0tqh7FQY
 Ig5uZEI19xegAtgKG4Ue
 =q6ks
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC defconfig updates from Kevin Hilman:
 "We keep collecting defconfig updates in a separate branch mostly to
  encourage people to handle them separately and avoid conflicts between
  different topics.

  Most of these are enablement of new SoCs, boards or drivers that have
  come in, or minor config refreshes due to reorderings in Kconfig
  files, etc.  I.e. mostly minor churn of various kinds"

* tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (55 commits)
  ARM: multi_v7_defconfig: remove duplicate CONFIG_COMMON_CLK_QCOM=y
  ARM: multi_v7_defconfig: Enable display on Trats2 board
  ARM64: add GPIO keys to the defconfig
  ARM: keystone: defconfig: enable netcp driver by default
  ARM: exynos_defconfig: Enable CONFIG_SENSORS_INA2XX for Odroid-XU3
  ARM: exynos_defconfig: Enable CONFIG_SENSORS_PWM_FAN for Odroid-XU3
  ARM: omap2plus_defconfig: Enable TOUCHSCREEN_PIXCIR
  ARM: omap2plus_defconfig: Add dm816x USB PHY as a loadable module
  ARM: omap2plus_defconifg: Enable DM9000 in omap2plus_defconfig
  ARM: lpc18xx: remove DEBUG_LL_UART_8250 from defconfig
  ARM: multi_v7_defconfig: Make media support modular
  ARM: multi_v7_defconfig: Make sound support modular
  ARM: multi_v7_defconfig: Enable shmobile r8a7778/bockw platform
  ARM: exynos_defconfig: savedefconfig
  ARM: exynos_defconfig: Enable display on Trats2 board
  ARM: multi_v7_defconfig: Enable OHCI on exynos SoCs
  ARM: multi_v7_defconfig: Enable TMU for exynos SoCs
  ARM: multi_v7_defconfig: Enable PMIC and MUIC drivers for exynos
  ARM: multi_v7_defconfig: Enable CPU idle for exynos SoCs
  ARM: multi_v7_defconfig: Enable Cypress APA I2C Trackpad support
  ...
2015-06-26 12:11:23 -07:00
Greg Kroah-Hartman
53a20e9e37 staging: wilc1000: disable driver due to build warnings
The wilc1000 has just too many build warnings to be able to enable it
for the 4.2 release.  Given that there have not been any patches
submitted to properly fix these obvious errors, I'm going to disable it
for now.  I will enable it back when the build warning fixes are
submitted, or, if that never happens, I will remove it from the tree.

Cc: Johnny Kim <johnny.kim@atmel.com>
Cc: Rachel Kim <rachel.kim@atmel.com>
Cc: Dean Lee <dean.lee@atmel.com>
Cc: Chris Park <chris.park@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-26 12:04:47 -07:00