Takashi Iwai [Wed, 10 May 2017 18:33:05 +0000 (20:33 +0200)]
ALSA: gus: Convert to the new PCM ops
Replace the copy and the silence ops with the new PCM ops.
For simplifying the code a bit, two local helpers are introduced here:
get_bpos() and playback_copy_ack().
Takashi Iwai [Wed, 10 May 2017 18:30:34 +0000 (20:30 +0200)]
ALSA: rme96: Convert to the new PCM ops
Replace the copy and the silence ops with the new PCM ops.
The conversion is straightforward with standard helper functions, and
now we can drop the bytes <-> frames conversions in callbacks.
Takashi Iwai [Wed, 10 May 2017 18:29:25 +0000 (20:29 +0200)]
ALSA: rme32: Convert to the new PCM copy ops
Replace the copy and the silence ops with the new ops.
The conversion is straightforward with standard helper functions, and
now we can drop the bytes <-> frames conversions in callbacks.
Takashi Iwai [Wed, 10 May 2017 18:19:17 +0000 (20:19 +0200)]
ALSA: korg1212: Convert to the new PCM ops
Replace the copy and the silence ops with the new PCM ops.
Although we can refactor this messy code, at this time, the changes
are kept as small as possible. Let's clean up later.
Takashi Iwai [Wed, 10 May 2017 18:25:17 +0000 (20:25 +0200)]
ALSA: nm256: Convert to new PCM copy ops
Replace the copy and the silence ops with the new ops.
The conversion is straightforward with standard helper functions, and
now we can drop the bytes <-> frames conversions in callbacks.
Takashi Iwai [Wed, 10 May 2017 18:16:36 +0000 (20:16 +0200)]
ALSA: es1938: Convert to the new PCM copy ops
Replace the copy ops with the new copy_user and copy_kernel ops.
It's used only for a capture stream (for some hardware workaround),
thus we need no silence operation.
Takashi Iwai [Wed, 10 May 2017 18:02:35 +0000 (20:02 +0200)]
ALSA: pcm: Introduce copy_user, copy_kernel and fill_silence ops
For supporting the explicit in-kernel copy of PCM buffer data, and
also for further code refactoring, three new PCM ops, copy_user,
copy_kernel and fill_silence, are introduced. The old copy and
silence ops will be deprecated and removed later once when all callers
are converted.
The copy_kernel ops is the new one, and it's supposed to transfer the
PCM data from the given kernel buffer to the hardware ring-buffer (or
vice-versa depending on the stream direction), while the copy_user ops
is equivalent with the former copy ops, to transfer the data from the
user-space buffer.
The major difference of the new copy_* and fill_silence ops from the
previous ops is that the new ops take bytes instead of frames for size
and position arguments. It has two merits: first, it allows the
callback implementation often simpler (just call directly memcpy() &
co), and second, it may unify the implementations of both interleaved
and non-interleaved cases, as we'll see in the later patch.
As of this stage, copy_kernel ops isn't referred yet, but only
copy_user is used.
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Colin Ian King [Tue, 30 May 2017 10:39:45 +0000 (11:39 +0100)]
ALSA: pcm: include pcm_local.h and remove some extraneous tabs
We need to include pcm_local.h to clean up some smatch warnings:
symbol 'snd_pcm_timer_done' was not declared. Should it be static?
symbol 'snd_pcm_timer_init' was not declared. Should it be static?
symbol 'snd_pcm_timer_resolution_change' was not declared. Should
it be static?
Also remove some extraneous tabs on empty lines and replace space
intentation with a tab.
Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Bhumika Goyal [Sat, 27 May 2017 14:46:15 +0000 (20:16 +0530)]
ALSA: declare snd_kcontrol_new structures as const
Declare snd_kcontrol_new structures as const as they are only passed an
argument to the function snd_ctl_new1. This argument is of type const,
so snd_kcontrol_new structures having this property can be made const.
Done using Coccinelle:
Cross compiled these files:
sound/aoa/codecs/tas.c - powerpc
sound/mips/{hal2.c/sgio2audio.c} - mips
sound/ppc/{awacs.c/beep.c/tumbler.c} - powerpc
sound/soc/sh/siu_dai.c - sh
Could not find an architecture to compile sound/sh/aica.c.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Sakamoto [Fri, 26 May 2017 00:30:46 +0000 (09:30 +0900)]
ALSA: pcm: add local header file for snd-pcm module
Several files are used to construct PCM core module, a.k.a snd-pcm.
Although available APIs are described in 'include/sound/pcm.h', some of
them are not exported as symbols in kernel space. Such APIs are just for
module local usage.
This commit adds module local header file and move some function prototypes
into it so that scopes of them are controlled properly and developers
get no confusion from unavailable symbols.
Takashi Iwai [Fri, 19 May 2017 18:22:33 +0000 (20:22 +0200)]
ALSA: pcm: Call ack() whenever appl_ptr is updated
Although the ack callback is supposed to be called at each appl_ptr or
hw_ptr update, we missed a few opportunities: namely, forward, rewind
and sync_ptr.
Formerly calling ack at rewind may have leaded to unexpected results
due to the forgotten negative appl_ptr update in indirect-PCM helper,
which is the major user of the PCM ack callback. But now we fixed
this oversights, thus we can call ack callback safely even at rewind
callback -- of course with the proper handling of the error from the
callback.
This patch adds the calls of ack callback in the places mentioned in
the above.
Takashi Iwai [Fri, 19 May 2017 16:31:03 +0000 (18:31 +0200)]
ALSA: pcm: Fix negative appl_ptr handling in pcm-indirect helpers
The indirect-PCM helper codes have an implicit assumption that the
appl_ptr always increases. But the PCM core may deal with the
decrement of appl_ptr via rewind ioctls, and it may screw up the
buffer pointer management.
This patch adds the negative appl_ptr diff in transfer functions and
let returning an error instead of always accepting the appl_ptr
updates. The callers are usually PCM ack callbacks, and they pass the
error to the upper layer accordingly.
Takashi Sakamoto [Tue, 23 May 2017 13:40:42 +0000 (22:40 +0900)]
ALSA: sb: remove needless evaluation in implementation for copy callback
In design of ALSA pcm core, 'struct snd_pcm_ops.copy' is expected to
copy PCM frames, according to frame alignment on intermediate buffer for
userspace and dedicated buffer for data transmission. In this callback,
value of 'channel' argument depends on the frame alignment, which drivers
registers to runtime of PCM substream. When target devices can handle
non-interleaved buffer, this value has positive value, otherwise negative.
ALSA driver for PCM component of EMU8000 chip is programmed with local
macro to switch the frame alignment. The 'copy' operation in
non-interleaved side has evaluation of the 'channel' argument (actually
it's 'voice' argument). This is useless.
This commit remove the evaluation.
[tiwai: the negative channel argument was the inheritance from the old
code where -1 was meant for interleaved mode. The mix-up was dropped
meanwhile, thus it's correct to assume that we receive no longer -1
there, and it's safe to cleanup the relevant code.
Also, voice=0 for channel==1 is trivial, and it can be dropped, too.]
Takashi Sakamoto [Tue, 23 May 2017 13:40:20 +0000 (22:40 +0900)]
ALSA: gus: remove unused local flag
ALSA driver series for devices of Gravis Ultra Sound includes local
variable 'snd_gf1_pcm_use_dma'. Although this is a flag to change
behaviours of local implementations for 'struct snd_pcm_ops.copy' and
'struct snd_pcm_ops.silence', it's invariable during module lifetime.
This commit removes this local variable and the relevant operations.
Takashi Sakamoto [Wed, 24 May 2017 01:04:30 +0000 (10:04 +0900)]
ALSA: control: remove entry limitation for list operation
In current implementation of ALSA control core, list operation has
a limitation to handle 16384 entries at once. This seems due to
allocation in kernel space to copy data from user space.
With a commit 53e7bf452584 ("ALSA: control: Simplify snd_ctl_elem_list()
implementation"), for the operation, ALSA control core copies data
into user space directly. No need to care of kernel spaces anymore.
Takashi Iwai [Mon, 22 May 2017 15:39:13 +0000 (17:39 +0200)]
ALSA: info: Use kvzalloc() for a temporary write buffer
We used to use kmalloc (more exactly, krealloc()) for creating and
growing the temporary buffer for text proc write. It can grow up to
16kB, and it's already a bit doubtful whether it's always safe to use
kmalloc(). With the recent addition of kvmalloc(), we can have a
better chance for succeed of memory allocation, so let's switch to
that new API.
Takashi Iwai [Wed, 10 May 2017 12:33:44 +0000 (14:33 +0200)]
ALSA: pcm: Remove set_fs() in PCM core code
PCM core code has a few usages of set_fs(), mostly for two codepaths:
- The DELAY ioctl call from pcm_compat.c
- The ioctl wrapper in kernel context for PCM OSS and other
This patch removes the set_fs() usage in these places by a slight code
refactoring. For the former point, snd_pcm_delay() is changed to
return the value directly instead of putting the value to the given
address. Each caller stores the result in an appropriate manner.
For fixing the latter, snd_pcm_lib_kernel_ioctl() is changed to call
the functions directly as well. For achieving it, now the function
accepts only the limited set of ioctls that have been used, so far.
The primary user of this function is the PCM OSS layer, and the only
other user is USB UAC1 gadget driver. Both drivers don't need the
full set of ioctls.
This patch simplifies the code of snd_ctl_elem_list() in the following
ways:
- Avoid a vmalloc() temporary buffer but do copy in each iteration;
the vmalloc buffer was introduced at the time we took the spinlock
for the ctl element management.
- Use the standard list_for_each_entry() macro
- Merge two loops into one;
it used to be a loop for skipping until offset becomes zero and
another loop to copy the data. They can be folded into a single
loop easily.
Takashi Sakamoto [Mon, 22 May 2017 13:22:21 +0000 (22:22 +0900)]
ALSA: firewire: remove support for 16 bit PCM samples in playback substream
In IEC 61883-6, AM824 is described as format of data block. In this
format, one data block consists of several data channels, which is aligned
to 32 bit. One data channel has 8 bit label field and 24 bit data field.
PCM frames are transferred in Multi Bit Linear Audio (MBLA) data channel.
This channel can include 16/20/24 bit PCM sample.
As long as I know, models which support IEC 61883-1/6 doesn't allow to
switch bit length of PCM sample in MBLA data channel. They always
transmit/receive PCM frames of 24 bit length. This can be seen for the
other models which support protocols similar to IEC 61883-1/6.
On the other hand, current drivers for these protocols supports 16 bit
length PCM sample in playback substream. In this case, PCM sample is put
into the MBLA data channel with 8 bit padding in LSB side. Although 16
bit PCM sample is major because it's in CD format, this doesn't represent
device capability as is.
This commit removes support for 16 bit PCM samples in playback substream.
Declare snd_kcontrol_new structures as const as they are only passed an
argument to the function snd_ctl_new1. This argument is of type const,
so snd_kcontrol_new structures having this property can be made const.
Done using Coccinelle:
Declare snd_kcontrol_new structures as const as they are only passed an
argument to the function snd_ctl_new1. This argument is of type const,
so snd_kcontrol_new structures having this property can be made const.
Done using Coccinelle:
Declare snd_kcontrol_new structures as const as they are only passed an
argument to the function snd_ctl_new1. This argument is of type const,
so snd_kcontrol_new structures having this property can be made const.
Done using Coccinelle:
Declare snd_kcontrol_new structures as const as they are only passed an
argument to the function snd_ctl_new1. This argument is of type const,
so snd_kcontrol_new structures having this property can be made const.
Done using Coccinelle:
Takashi Iwai [Fri, 19 May 2017 18:04:23 +0000 (20:04 +0200)]
ALSA: pcm: Use a common helper for PCM state check and hwsync
The mostly same codes for checking the current PCM state and calling
hwsync are found in a few places. This patch simplifies them by
creating a common helper function.
It also fixes a couple of cases where we missed the proper state check
(e.g. PAUSED state wasn't handled in rewind and snd_pcm_hwsync()),
too.
Arnd Bergmann [Thu, 18 May 2017 13:35:55 +0000 (15:35 +0200)]
ALSA: pcm/oss: mark snd_pcm_plug_slave_format arg as const
Only one of the two declarations has the const modifier in the
argument list, so we get a warning when CONFIG_SND_PCM_OSS_PLUGINS
is disabled:
sound/core/oss/pcm_oss.c: In function 'snd_pcm_oss_change_params':
sound/core/oss/pcm_oss.c:898:47: error: passing argument 2 of 'snd_pcm_plug_slave_format' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
This makes the two declarations match again.
Fixes: e76bf3c4b4e4 ("ALSA: pcm/oss: refer to parameters instead of copying to reduce usage of kernel stack") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Arnd Bergmann [Thu, 18 May 2017 13:35:54 +0000 (15:35 +0200)]
ALSA: pcm: use "do {} while (0)" for empty macro
Recent compilers produce a harmless warning for the new pcm_call_notify()
macro when CONFIG_SND_PCM_OSS is disabled:
sound/core/pcm.c: In function 'snd_pcm_free':
sound/core/pcm.c:905:37: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
This turns the empty macro into a 'do {} while (0)' statement to avoid
the warning.
Takashi Sakamoto [Tue, 16 May 2017 23:48:18 +0000 (08:48 +0900)]
ALSA: pcm: constify function local and read-only table
In a function snd_pcm_hw_params_choose(), target parameters are arranged
into a table. Though each entry of this table is read-only, they don't
have const qualifier.
Takashi Sakamoto [Tue, 16 May 2017 23:48:19 +0000 (08:48 +0900)]
ALSA: pcm/oss: refer to parameters instead of copying to reduce usage of kernel stack
Some functions in compatibility layer for Open Sound System interface has
local variable to copy some parameters in runtime of PCM substream, while
this can be replaced with reference of pointers to parameter itself. This
brings an advantage to reduce usage of kernel stack.
Takashi Iwai [Tue, 16 May 2017 08:42:04 +0000 (10:42 +0200)]
ALSA: Enable build with m68k
By some reason in the ancient history, we disabled the build of ALSA
drivers for m68k. Since we'd like to move sound/oss/dmasound stuff
into ALSA for the complete drop of the legacy OSS stuff, let's try to
start building with m68k.
Takashi Iwai [Wed, 10 May 2017 10:29:37 +0000 (12:29 +0200)]
ALSA: hda - Remove the use of set_fs()
set_fs() is used in HD-audio vmaster code to retrieve the TLV data of
each slave kctl. Since the slave is supposed to be a standard amp
kctl, we can call directly the supposed tlv callback instead of the
indirect call, so that we can remove the set_fs() hack.
Takashi Iwai [Wed, 10 May 2017 10:04:08 +0000 (12:04 +0200)]
ALSA: hda - Simplify bound-beep mute control for ALC268
The beep mute switch for ALC268 needs to touch two NIDs, and we used
to apply the bind-mixer stuff. But the use case for ALC268 is fairly
easy to convert to an open-code in a shorter form. Since this is the
only user of the bind-ctls, we can clean up the common helper codes
later.
Takashi Iwai [Fri, 12 May 2017 09:52:06 +0000 (11:52 +0200)]
ALSA: opl4: Use IS_REACHABLE()
Rewrite the complex ifdef condition with IS_REACHABLE().
The ifdef in opl4_local.h was without defined(MODLE) check, but this
is likely the oversight. Use IS_REACHABLE() here as well.
Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Takashi Iwai [Fri, 12 May 2017 08:47:16 +0000 (10:47 +0200)]
ALSA: ak411x: Use array instead of offsetof()
The ak4113, ak4114 and ak4117 i2c drivers have some tricky codes to
access the struct fields in the callback. This can be simplified by
replacing the struct fields with the array.
Takashi Iwai [Fri, 12 May 2017 08:03:35 +0000 (10:03 +0200)]
ALSA: vxpocket: Use container_of()
The vxpocket driver is using the explicit cast from the parent class
pointer, but it'll be broken when the structure field randomization is
applied. Use container_of() in a modern manner, instead.
Takashi Iwai [Fri, 12 May 2017 08:02:08 +0000 (10:02 +0200)]
ALSA: vx222: Use container_of()
The vx222 driver is using the explicit cast from the parent class
pointer, but it'll be broken when the structure field randomization is
applied. Use container_of() in a modern manner, instead.
Johan Hovold [Fri, 12 May 2017 12:34:38 +0000 (14:34 +0200)]
ALSA: us122l: clean up US144 handling
Use the device-id table and a private flag to determine the device type
(US122 or US144) rather than spreading product-id conditionals
throughout the driver.
This USB driver currently depends on X86 (why?), but we should still add
the missing endianness conversions when accessing the USB
device-descriptor fields.
Compile-tested only.
Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Linus Torvalds [Sat, 13 May 2017 17:25:05 +0000 (10:25 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull some more input subsystem updates from Dmitry Torokhov:
"An updated xpad driver with a few more recognized device IDs, and a
new psxpad-spi driver, allowing connecting Playstation 1 and 2 joypads
via SPI bus"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: cros_ec_keyb - remove extraneous 'const'
Input: add support for PlayStation 1/2 joypads connected via SPI
Input: xpad - add USB IDs for Mad Catz Brawlstick and Razer Sabertooth
Input: xpad - sync supported devices with xboxdrv
Input: xpad - sort supported devices by USB ID
Linus Torvalds [Sat, 13 May 2017 17:23:12 +0000 (10:23 -0700)]
Merge tag 'upstream-4.12-rc1' of git://git.infradead.org/linux-ubifs
Pull UBI/UBIFS updates from Richard Weinberger:
- new config option CONFIG_UBIFS_FS_SECURITY
- minor improvements
- random fixes
* tag 'upstream-4.12-rc1' of git://git.infradead.org/linux-ubifs:
ubi: Add debugfs file for tracking PEB state
ubifs: Fix a typo in comment of ioctl2ubifs & ubifs2ioctl
ubifs: Remove unnecessary assignment
ubifs: Fix cut and paste error on sb type comparisons
ubi: fastmap: Fix slab corruption
ubifs: Add CONFIG_UBIFS_FS_SECURITY to disable/enable security labels
ubi: Make mtd parameter readable
ubi: Fix section mismatch
Linus Torvalds [Sat, 13 May 2017 17:20:02 +0000 (10:20 -0700)]
Merge branch 'for-linus-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML fixes from Richard Weinberger:
"No new stuff, just fixes"
* 'for-linus-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: Add missing NR_CPUS include
um: Fix to call read_initrd after init_bootmem
um: Include kbuild.h instead of duplicating its macros
um: Fix PTRACE_POKEUSER on x86_64
um: Set number of CPUs
um: Fix _print_addr()
Linus Torvalds [Sat, 13 May 2017 16:49:35 +0000 (09:49 -0700)]
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"15 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm, docs: update memory.stat description with workingset* entries
mm: vmscan: scan until it finds eligible pages
mm, thp: copying user pages must schedule on collapse
dax: fix PMD data corruption when fault races with write
dax: fix data corruption when fault races with write
ext4: return to starting transaction in ext4_dax_huge_fault()
mm: fix data corruption due to stale mmap reads
dax: prevent invalidation of mapped DAX entries
Tigran has moved
mm, vmalloc: fix vmalloc users tracking properly
mm/khugepaged: add missed tracepoint for collapse_huge_page_swapin
gcov: support GCC 7.1
mm, vmstat: Remove spurious WARN() during zoneinfo print
time: delete current_fs_time()
hwpoison, memcg: forcibly uncharge LRU pages
With investigation, skipping page of isolate_lru_pages makes reclaim
void because it returns zero nr_taken easily so LRU shrinking is
effectively nothing and just increases priority aggressively. Finally,
OOM happens.
The problem is that get_scan_count determines nr_to_scan with eligible
zones so although priority drops to zero, it couldn't reclaim any pages
if the LRU contains mostly ineligible pages.
Assumes sc->priority is 0 and LRU list is as follows.
N-N-N-N-H-H-H-H-H-H-H-H-H-H-H-H-H-H-H-H
(Ie, small eligible pages are in the head of LRU but others are
almost ineligible pages)
In that case, size becomes 4 so VM want to scan 4 pages but 4 pages from
tail of the LRU are not eligible pages. If get_scan_count counts
skipped pages, it doesn't reclaim any pages remained after scanning 4
pages so it ends up OOM happening.
This patch makes isolate_lru_pages try to scan pages until it encounters
eligible zones's pages.
[akpm@linux-foundation.org: clean up mind-bending `for' statement. Tweak comment text] Fixes: 3db65812d688 ("Revert "mm, vmscan: account for skipped pages as a partial scan"") Link: http://lkml.kernel.org/r/1494457232-27401-1-git-send-email-minchan@kernel.org Signed-off-by: Minchan Kim <minchan@kernel.org> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Mel Gorman <mgorman@techsingularity.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
grab_mapping_entry()
- we add huge zero page to the radix tree
and map it to page tables
The result is that hole page is mapped into page tables (and thus zeros
are seen in mmap) while file has data written in that place.
Fix the problem by locking exception entry before mapping blocks for the
fault. That way we are sure invalidate_inode_pages2_range() call for
racing write will either block on entry lock waiting for the fault to
finish (and unmap stale page tables after that) or read fault will see
already allocated blocks by write(2).
Fixes: 9f141d6ef6258 ("dax: Call ->iomap_begin without entry lock during dax fault") Link: http://lkml.kernel.org/r/20170510172700.18991-1-ross.zwisler@linux.intel.com Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Dan Williams <dan.j.williams@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jan Kara [Fri, 12 May 2017 22:46:57 +0000 (15:46 -0700)]
dax: fix data corruption when fault races with write
Currently DAX read fault can race with write(2) in the following way:
CPU1 - write(2) CPU2 - read fault
dax_iomap_pte_fault()
->iomap_begin() - sees hole
dax_iomap_rw()
iomap_apply()
->iomap_begin - allocates blocks
dax_iomap_actor()
invalidate_inode_pages2_range()
- there's nothing to invalidate
grab_mapping_entry()
- we add zero page in the radix tree
and map it to page tables
The result is that hole page is mapped into page tables (and thus zeros
are seen in mmap) while file has data written in that place.
Fix the problem by locking exception entry before mapping blocks for the
fault. That way we are sure invalidate_inode_pages2_range() call for
racing write will either block on entry lock waiting for the fault to
finish (and unmap stale page tables after that) or read fault will see
already allocated blocks by write(2).
Fixes: 9f141d6ef6258a3a37a045842d9ba7e68f368956 Link: http://lkml.kernel.org/r/20170510085419.27601-5-jack@suse.cz Signed-off-by: Jan Kara <jack@suse.cz> Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jan Kara [Fri, 12 May 2017 22:46:54 +0000 (15:46 -0700)]
ext4: return to starting transaction in ext4_dax_huge_fault()
DAX will return to locking exceptional entry before mapping blocks for a
page fault to fix possible races with concurrent writes. To avoid lock
inversion between exceptional entry lock and transaction start, start
the transaction already in ext4_dax_huge_fault().
Fixes: 9f141d6ef6258a3a37a045842d9ba7e68f368956 Link: http://lkml.kernel.org/r/20170510085419.27601-4-jack@suse.cz Signed-off-by: Jan Kara <jack@suse.cz> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jan Kara [Fri, 12 May 2017 22:46:50 +0000 (15:46 -0700)]
mm: fix data corruption due to stale mmap reads
Currently, we didn't invalidate page tables during invalidate_inode_pages2()
for DAX. That could result in e.g. 2MiB zero page being mapped into
page tables while there were already underlying blocks allocated and
thus data seen through mmap were different from data seen by read(2).
The following sequence reproduces the problem:
- open an mmap over a 2MiB hole
- read from a 2MiB hole, faulting in a 2MiB zero page
- write to the hole with write(3p). The write succeeds but we
incorrectly leave the 2MiB zero page mapping intact.
- via the mmap, read the data that was just written. Since the zero
page mapping is still intact we read back zeroes instead of the new
data.
Fix the problem by unconditionally calling invalidate_inode_pages2_range()
in dax_iomap_actor() for new block allocations and by properly
invalidating page tables in invalidate_inode_pages2_range() for DAX
mappings.
Fixes: c6dcf52c23d2d3fb5235cec42d7dd3f786b87d55 Link: http://lkml.kernel.org/r/20170510085419.27601-3-jack@suse.cz Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ross Zwisler [Fri, 12 May 2017 22:46:47 +0000 (15:46 -0700)]
dax: prevent invalidation of mapped DAX entries
Patch series "mm,dax: Fix data corruption due to mmap inconsistency",
v4.
This series fixes data corruption that can happen for DAX mounts when
page faults race with write(2) and as a result page tables get out of
sync with block mappings in the filesystem and thus data seen through
mmap is different from data seen through read(2).
The series passes testing with t_mmap_stale test program from Ross and
also other mmap related tests on DAX filesystem.
This patch (of 4):
dax_invalidate_mapping_entry() currently removes DAX exceptional entries
only if they are clean and unlocked. This is done via:
However, for page cache pages removed in invalidate_mapping_pages()
there is an additional criteria which is that the page must not be
mapped. This is noted in the comments above invalidate_mapping_pages()
and is checked in invalidate_inode_page().
For DAX entries this means that we can can end up in a situation where a
DAX exceptional entry, either a huge zero page or a regular DAX entry,
could end up mapped but without an associated radix tree entry. This is
inconsistent with the rest of the DAX code and with what happens in the
page cache case.
We aren't able to unmap the DAX exceptional entry because according to
its comments invalidate_mapping_pages() isn't allowed to block, and
unmap_mapping_range() takes a write lock on the mapping->i_mmap_rwsem.
Since we essentially never have unmapped DAX entries to evict from the
radix tree, just remove dax_invalidate_mapping_entry().
Fixes: c6dcf52c23d2 ("mm: Invalidate DAX radix tree entries only if appropriate") Link: http://lkml.kernel.org/r/20170510085419.27601-2-jack@suse.cz Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Jan Kara <jack@suse.cz> Reported-by: Jan Kara <jack@suse.cz> Cc: Dan Williams <dan.j.williams@intel.com> Cc: <stable@vger.kernel.org> [4.10+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michal Hocko [Fri, 12 May 2017 22:46:41 +0000 (15:46 -0700)]
mm, vmalloc: fix vmalloc users tracking properly
Commit 1f5307b1e094 ("mm, vmalloc: properly track vmalloc users") has
pulled asm/pgtable.h include dependency to linux/vmalloc.h and that
turned out to be a bad idea for some architectures. E.g. m68k fails
with
In file included from arch/m68k/include/asm/pgtable_mm.h:145:0,
from arch/m68k/include/asm/pgtable.h:4,
from include/linux/vmalloc.h:9,
from arch/m68k/kernel/module.c:9:
arch/m68k/include/asm/mcf_pgtable.h: In function 'nocache_page':
>> arch/m68k/include/asm/mcf_pgtable.h:339:43: error: 'init_mm' undeclared (first use in this function)
#define pgd_offset_k(address) pgd_offset(&init_mm, address)
as spotted by kernel build bot. nios2 fails for other reason
In file included from include/asm-generic/io.h:767:0,
from arch/nios2/include/asm/io.h:61,
from include/linux/io.h:25,
from arch/nios2/include/asm/pgtable.h:18,
from include/linux/mm.h:70,
from include/linux/pid_namespace.h:6,
from include/linux/ptrace.h:9,
from arch/nios2/include/uapi/asm/elf.h:23,
from arch/nios2/include/asm/elf.h:22,
from include/linux/elf.h:4,
from include/linux/module.h:15,
from init/main.c:16:
include/linux/vmalloc.h: In function '__vmalloc_node_flags':
include/linux/vmalloc.h:99:40: error: 'PAGE_KERNEL' undeclared (first use in this function); did you mean 'GFP_KERNEL'?
which is due to the newly added #include <asm/pgtable.h>, which on nios2
includes <linux/io.h> and thus <asm/io.h> and <asm-generic/io.h> which
again includes <linux/vmalloc.h>.
Tweaking that around just turns out a bigger headache than necessary.
This patch reverts 1f5307b1e094 and reimplements the original fix in a
different way. __vmalloc_node_flags can stay static inline which will
cover vmalloc* functions. We only have one external user
(kvmalloc_node) and we can export __vmalloc_node_flags_caller and
provide the caller directly. This is much simpler and it doesn't really
need any games with header files.
SeongJae Park [Fri, 12 May 2017 22:46:38 +0000 (15:46 -0700)]
mm/khugepaged: add missed tracepoint for collapse_huge_page_swapin
One return case of `__collapse_huge_page_swapin()` does not invoke
tracepoint while every other return case does. This commit adds a
tracepoint invocation for the case.
Link: http://lkml.kernel.org/r/20170507101813.30187-1-sj38.park@gmail.com Signed-off-by: SeongJae Park <sj38.park@gmail.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Reza Arbab [Fri, 12 May 2017 22:46:32 +0000 (15:46 -0700)]
mm, vmstat: Remove spurious WARN() during zoneinfo print
After commit e2ecc8a79ed4 ("mm, vmstat: print non-populated zones in
zoneinfo"), /proc/zoneinfo will show unpopulated zones.
A memoryless node, having no populated zones at all, was previously
ignored, but will now trigger the WARN() in is_zone_first_populated().
Remove this warning, as its only purpose was to warn of a situation that
has since been enabled.
Aside: The "per-node stats" are still printed under the first populated
zone, but that's not necessarily the first stanza any more. I'm not
sure which criteria is more important with regard to not breaking
parsers, but it looks a little weird to the eye.
Michal Hocko [Fri, 12 May 2017 22:46:26 +0000 (15:46 -0700)]
hwpoison, memcg: forcibly uncharge LRU pages
Laurent Dufour has noticed that hwpoinsoned pages are kept charged. In
his particular case he has hit a bad_page("page still charged to
cgroup") when onlining a hwpoison page. While this looks like something
that shouldn't happen in the first place because onlining hwpages and
returning them to the page allocator makes only little sense it shows a
real problem.
hwpoison pages do not get freed usually so we do not uncharge them (at
least not since commit 0a31bc97c80c ("mm: memcontrol: rewrite uncharge
API")). Each charge pins memcg (since e8ea14cc6ead ("mm: memcontrol:
take a css reference for each charged page")) as well and so the
mem_cgroup and the associated state will never go away. Fix this leak
by forcibly uncharging a LRU hwpoisoned page in delete_from_lru_cache().
We also have to tweak uncharge_list because it cannot rely on zero ref
count for these pages.
Linus Torvalds [Fri, 12 May 2017 22:43:10 +0000 (15:43 -0700)]
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"Incremental fixes and a small feature addition on top of the main
libnvdimm 4.12 pull request:
- Geert noticed that tinyconfig was bloated by BLOCK selecting DAX.
The size regression is fixed by moving all dax helpers into the
dax-core and only specifying "select DAX" for FS_DAX and
dax-capable drivers. He also asked for clarification of the
NR_DEV_DAX config option which, on closer look, does not need to be
a config option at all. Mike also throws in a DEV_DAX_PMEM fixup
for good measure.
- Ben's attention to detail on -stable patch submissions caught a
case where the recent fixes to arch_copy_from_iter_pmem() missed a
condition where we strand dirty data in the cache. This is tagged
for -stable and will also be included in the rework of the pmem api
to a proposed {memcpy,copy_user}_flushcache() interface for 4.13.
- Vishal adds a feature that missed the initial pull due to pending
review feedback. It allows the kernel to clear media errors when
initializing a BTT (atomic sector update driver) instance on a pmem
namespace.
- Ross noticed that the dax_device + dax_operations conversion broke
__dax_zero_page_range(). The nvdimm unit tests fail to check this
path, but xfstests immediately trips over it. No excuse for missing
this before submitting the 4.12 pull request.
These all pass the nvdimm unit tests and an xfstests spot check. The
set has received a build success notification from the kbuild robot"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
filesystem-dax: fix broken __dax_zero_page_range() conversion
libnvdimm, btt: ensure that initializing metadata clears poison
libnvdimm: add an atomic vs process context flag to rw_bytes
x86, pmem: Fix cache flushing for iovec write < 8 bytes
device-dax: kill NR_DEV_DAX
block, dax: move "select DAX" from BLOCK to FS_DAX
device-dax: Tell kbuild DEV_DAX_PMEM depends on DEV_DAX
Linus Torvalds [Fri, 12 May 2017 19:10:38 +0000 (12:10 -0700)]
Merge tag 'sound-fix-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This contains a one-liner change that has a significant impact:
disabling the build of OSS. It's been unmaintained for long time, and
we'd like to drop the stuff. Finally, as the first step, stop the
build. Let's see whether it works without much complaints.
Other than that, there are two small fixes for HD-audio"
* tag 'sound-fix-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
sound: Disable the build of OSS drivers
ALSA: hda: Fix cpu lockup when stopping the cmd dmas
ALSA: hda - Add mute led support for HP EliteBook 840 G3
Linus Torvalds [Fri, 12 May 2017 19:02:21 +0000 (12:02 -0700)]
Merge tag 'for-v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull more power-supply updates from Sebastian Reichel:
"The power-supply subsystem has a few more changes for the v4.12 merge
window:
- New battery driver for AXP20X and AXP22X PMICs
- Improve max17042_battery for usage on x86
- Misc small cleanups & fixes"
* tag 'for-v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (34 commits)
power: supply: cpcap-charger: Keep trickle charger bits disabled
power: supply: cpcap-charger: Fix enable for 3.8V charge setting
power: supply: cpcap-charger: Fix charge voltage configuration
power: supply: cpcap-charger: Fix charger name
power: supply: twl4030-charger: make twl4030_bci_property_is_writeable static
power: supply: sbs-battery: Add alert callback
mailmap: add Sebastian Reichel
power: supply: avoid unused twl4030-madc.h
power: supply: sbs-battery: Correct supply status with current draw
power: supply: sbs-battery: Don't ignore the first external power change
power: supply: pda_power: move from timer to delayed_work
power: supply: max17042_battery: Add support for the SCOPE property
power: supply: max17042_battery: Add support for the CHARGE_NOW property
power: supply: max17042_battery: Add support for the CHARGE_FULL_DESIGN property
power: supply: max17042_battery: mAh readings depend on r_sns value
power: supply: max17042_battery: Add support for the VOLT_MIN property
power: supply: max17042_battery: Add support for the TECHNOLOGY attribute
power: supply: max17042_battery: Add external_power_changed callback
power: supply: max17042_battery: Add support for the STATUS property
power: supply: max17042_battery: Add default platform_data fallback data
...
Linus Torvalds [Fri, 12 May 2017 18:58:45 +0000 (11:58 -0700)]
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management updates from Zhang Rui:
- Fix a problem where orderly_shutdown() is called for multiple times
due to multiple critical overheating events raised in a short period
by platform thermal driver. (Keerthy)
- Introduce a backup thermal shutdown mechanism, which invokes
kernel_power_off()/emergency_restart() directly, after
orderly_shutdown() being issued for certain amount of time(specified
via Kconfig). This is useful in certain conditions that userspace may
be unable to power off the system in a clean manner and leaves the
system in a critical state, like in the middle of driver probing
phase. (Keerthy)
- Introduce a new interface in thermal devfreq_cooling code so that the
driver can provide more precise data regarding actual power to the
thermal governor every time the power budget is calculated. (Lukasz
Luba)
- Introduce BCM 2835 soc thermal driver and northstar thermal driver,
within a new sub-folder. (Rafał Miłecki)
- Small fix on MTK and intel-soc-dts thermal driver. (Dawei Chien,
Brian Bian)
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (25 commits)
thermal: core: Add a back up thermal shutdown mechanism
thermal: core: Allow orderly_poweroff to be called only once
Thermal: Intel SoC DTS: Change interrupt request behavior
trace: thermal: add another parameter 'power' to the tracing function
thermal: devfreq_cooling: add new interface for direct power read
thermal: devfreq_cooling: refactor code and add get_voltage function
thermal: mt8173: minor mtk_thermal.c cleanups
thermal: bcm2835: move to the broadcom subdirectory
thermal: broadcom: ns: specify myself as MODULE_AUTHOR
thermal: da9062/61: Thermal junction temperature monitoring driver
Documentation: devicetree: thermal: da9062/61 TJUNC temperature binding
thermal: broadcom: add Northstar thermal driver
dt-bindings: thermal: add support for Broadcom's Northstar thermal
thermal: bcm2835: add thermal driver for bcm2835 SoC
dt-bindings: Add thermal zone to bcm2835-thermal example
thermal: rcar_gen3_thermal: add suspend and resume support
thermal: rcar_gen3_thermal: store device match data in private structure
thermal: rcar_gen3_thermal: enable hardware interrupts for trip points
thermal: rcar_gen3_thermal: record and check number of TSCs found
thermal: rcar_gen3_thermal: check that TSC exists before memory allocation
...
Linus Torvalds [Fri, 12 May 2017 18:48:26 +0000 (11:48 -0700)]
Merge tag 'drm-fixes-for-v4.12-rc1' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"AMD, nouveau, one i915, and one EDID fix for v4.12-rc1
Some fixes that it would be good to have in rc1. It contains the i915
quiet fix that you reported.
It also has an amdgpu fixes pull, with lots of ongoing work on Vega10
which is new in this kernel and is preliminary support so may have a
fair bit of movement.
Otherwise a few non-Vega10 AMD fixes, one EDID fix and some nouveau
regression fixers"
* tag 'drm-fixes-for-v4.12-rc1' of git://people.freedesktop.org/~airlied/linux: (144 commits)
drm/i915: Make vblank evade warnings optional
drm/nouveau/therm: remove ineffective workarounds for alarm bugs
drm/nouveau/tmr: avoid processing completed alarms when adding a new one
drm/nouveau/tmr: fix corruption of the pending list when rescheduling an alarm
drm/nouveau/tmr: handle races with hw when updating the next alarm time
drm/nouveau/tmr: ack interrupt before processing alarms
drm/nouveau/core: fix static checker warning
drm/nouveau/fb/ram/gf100-: remove 0x10f200 read
drm/nouveau/kms/nv50: skip core channel cursor update on position-only changes
drm/nouveau/kms/nv50: fix source-rect-only plane updates
drm/nouveau/kms/nv50: remove pointless argument to window atomic_check_acquire()
drm/amd/powerplay: refine pwm1_enable callback functions for CI.
drm/amd/powerplay: refine pwm1_enable callback functions for vi.
drm/amd/powerplay: refine pwm1_enable callback functions for Vega10.
drm/amdgpu: refine amdgpu pwm1_enable sysfs interface.
drm/amdgpu: add amd fan ctrl mode enums.
drm/amd/powerplay: add more smu message on Vega10.
drm/amdgpu: fix dependency issue
drm/amd: fix init order of sched job
drm/amdgpu: add some additional vega10 pci ids
...
Linus Torvalds [Fri, 12 May 2017 18:44:13 +0000 (11:44 -0700)]
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger:
"Things were a lot more calm than previously expected. It's primarily
fixes in various areas, with most of the new functionality centering
around TCMU backend driver work that Xiubo Li has been driving.
Here's the summary on the feature side:
- Make T10-PI verify configurable for emulated (FILEIO + RD) backends
(Dmitry Monakhov)
- Allow target-core/TCMU pass-through to use in-kernel SPC-PR logic
(Bryant Ly + MNC)
- Add TCMU support for growing ring buffer size (Xiubo Li + MNC)
- Add TCMU support for global block data pool (Xiubo Li + MNC)
and on the bug-fix side:
- Fix COMPARE_AND_WRITE non GOOD status handling for READ phase
failures (Gary Guo + nab)
- Fix iscsi-target hang with explicitly changing per NodeACL
CmdSN number depth with concurrent login driven session
reinstatement. (Gary Guo + nab)
- Fix ibmvscsis fabric driver ABORT task handling (Bryant Ly)
- Fix target-core/FILEIO zero length handling (Bart Van Assche)
Also, there was an OOPs introduced with the WRITE_VERIFY changes that
I ended up reverting at the last minute, because as not unusual Bart
and I could not agree on the fix in time for -rc1. Since it's specific
to a conformance test, it's been reverted for now.
There is a separate patch in the queue to address the underlying
control CDB write overflow regression in >= v4.3 separate from the
WRITE_VERIFY revert here, that will be pushed post -rc1"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (30 commits)
Revert "target: Fix VERIFY and WRITE VERIFY command parsing"
IB/srpt: Avoid that aborting a command triggers a kernel warning
IB/srpt: Fix abort handling
target/fileio: Fix zero-length READ and WRITE handling
ibmvscsis: Do not send aborted task response
tcmu: fix module removal due to stuck thread
target: Don't force session reset if queue_depth does not change
iscsi-target: Set session_fall_back_to_erl0 when forcing reinstatement
target: Fix compare_and_write_callback handling for non GOOD status
tcmu: Recalculate the tcmu_cmd size to save cmd area memories
tcmu: Add global data block pool support
tcmu: Add dynamic growing data area feature support
target: fixup error message in target_tg_pt_gp_tg_pt_gp_id_store()
target: fixup error message in target_tg_pt_gp_alua_access_type_store()
target/user: PGR Support
target: Add WRITE_VERIFY_16
Documentation/target: add an example script to configure an iSCSI target
target: Use kmalloc_array() in transport_kmap_data_sg()
target: Use kmalloc_array() in compare_and_write_callback()
target: Improve size determinations in two functions
...
Linus Torvalds [Fri, 12 May 2017 18:39:59 +0000 (11:39 -0700)]
Merge branch 'work.sane_pwd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs updates from Al Viro:
"Making sure that something like a referral point won't end up as pwd
or root.
The main part is the last commit (fixing mntns_install()); that one
fixes a hard-to-hit race. The fchdir() commit is making fchdir(2) a
bit more robust - it should be impossible to get opened files (even
O_PATH ones) for referral points in the first place, so the existing
checks are OK, but checking the same thing as in chdir(2) is just as
cheap.
The path_init() commit removes a redundant check that shouldn't have
been there in the first place"
* 'work.sane_pwd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
make sure that mntns_install() doesn't end up with referral for root
path_init(): don't bother with checking MAY_EXEC for LOOKUP_ROOT
make sure that fchdir() won't accept referral points, etc.
Linus Torvalds [Fri, 12 May 2017 17:45:36 +0000 (10:45 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates/fixes from Ingo Molnar:
"Mostly tooling updates, but also two kernel fixes: a call chain
handling robustness fix and an x86 PMU driver event definition fix"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/callchain: Force USER_DS when invoking perf_callchain_user()
tools build: Fixup sched_getcpu feature test
perf tests kmod-path: Don't fail if compressed modules aren't supported
perf annotate: Fix AArch64 comment char
perf tools: Fix spelling mistakes
perf/x86: Fix Broadwell-EP DRAM RAPL events
perf config: Refactor a duplicated code for obtaining config file name
perf symbols: Allow user probes on versioned symbols
perf symbols: Accept symbols starting at address 0
tools lib string: Adopt prefixcmp() from perf and subcmd
perf units: Move parse_tag_value() to units.[ch]
perf ui gtk: Move gtk .so name to the only place where it is used
perf tools: Move HAS_BOOL define to where perl headers are used
perf memswap: Split the byteswap memory range wrappers from util.[ch]
perf tools: Move event prototypes from util.h to event.h
perf buildid: Move prototypes from util.h to build-id.h
Linus Torvalds [Fri, 12 May 2017 17:41:45 +0000 (10:41 -0700)]
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull stackprotector fixlet from Ingo Molnar:
"A single fix/enhancement to increase stackprotector canary randomness
on 64-bit kernels with very little cost"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
stackprotector: Increase the per-task stack canary's random range from 32 bits to 64 bits on 64-bit platforms
Linus Torvalds [Fri, 12 May 2017 17:11:50 +0000 (10:11 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Misc fixes:
- two boot crash fixes
- unwinder fixes
- kexec related kernel direct mappings enhancements/fixes
- more Clang support quirks
- minor cleanups
- Documentation fixes"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/intel_rdt: Fix a typo in Documentation
x86/build: Don't add -maccumulate-outgoing-args w/o compiler support
x86/boot/32: Fix UP boot on Quark and possibly other platforms
x86/mm/32: Set the '__vmalloc_start_set' flag in initmem_init()
x86/kexec/64: Use gbpages for identity mappings if available
x86/mm: Add support for gbpages to kernel_ident_mapping_init()
x86/boot: Declare error() as noreturn
x86/mm/kaslr: Use the _ASM_MUL macro for multiplication to work around Clang incompatibility
x86/mm: Fix boot crash caused by incorrect loop count calculation in sync_global_pgds()
x86/asm: Don't use RBP as a temporary register in csum_partial_copy_generic()
x86/microcode/AMD: Remove redundant NULL check on mc
Linus Torvalds [Fri, 12 May 2017 17:09:14 +0000 (10:09 -0700)]
Merge tag 'for-linus-4.12b-rc0c-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"This contains two fixes for booting under Xen introduced during this
merge window and two fixes for older problems, where one is just much
more probable due to another merge window change"
* tag 'for-linus-4.12b-rc0c-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: adjust early dom0 p2m handling to xen hypervisor behavior
x86/amd: don't set X86_BUG_SYSRET_SS_ATTRS when running under Xen
xen/x86: Do not call xen_init_time_ops() until shared_info is initialized
x86/xen: fix xsave capability setting
Linus Torvalds [Fri, 12 May 2017 17:04:09 +0000 (10:04 -0700)]
Merge tag 'powerpc-4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull more powerpc updates from Michael Ellerman:
"The change to the Linux page table geometry was delayed for more
testing with 16G pages, and there's the new CPU features stuff which
just needed one more polish before going in. Plus a few changes from
Scott which came in a bit late. And then various fixes, mostly minor.
Summary highlights:
- rework the Linux page table geometry to lower memory usage on
64-bit Book3S (IBM chips) using the Hash MMU.
- support for a new device tree binding for discovering CPU features
on future firmwares.
- Freescale updates from Scott:
"Includes a fix for a powerpc/next mm regression on 64e, a fix for
a kernel hang on 64e when using a debugger inside a relocated
kernel, a qman fix, and misc qe improvements."
Thanks to: Christophe Leroy, Gavin Shan, Horia Geantă, LiuHailong,
Nicholas Piggin, Roy Pledge, Scott Wood, Valentin Longchamp"
* tag 'powerpc-4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s: Support new device tree binding for discovering CPU features
powerpc: Don't print cpu_spec->cpu_name if it's NULL
of/fdt: introduce of_scan_flat_dt_subnodes and of_get_flat_dt_phandle
powerpc/64s: Fix unnecessary machine check handler relocation branch
powerpc/mm/book3s/64: Rework page table geometry for lower memory usage
powerpc: Fix distclean with Makefile.postlink
powerpc/64e: Don't place the stack beyond TASK_SIZE
powerpc/powernv: Block PCI config access on BCM5718 during EEH recovery
powerpc/8xx: Adding support of IRQ in MPC8xx GPIO
soc/fsl/qbman: Disable IRQs for deferred QBMan work
soc/fsl/qe: add EXPORT_SYMBOL for the 2 qe_tdm functions
soc/fsl/qe: only apply QE_General4 workaround on affected SoCs
soc/fsl/qe: round brg_freq to 1kHz granularity
soc/fsl/qe: get rid of immrbar_virt_to_phys()
net: ethernet: ucc_geth: fix MEM_PART_MURAM mode
powerpc/64e: Fix hang when debugging programs with relocated kernel
Linus Torvalds [Fri, 12 May 2017 16:56:30 +0000 (09:56 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from James Hogan:
"math-emu:
- Add missing clearing of BLTZALL and BGEZALL emulation counters
- Fix BC1EQZ and BC1NEZ condition handling
- Fix BLEZL and BGTZL identification
BPF:
- Add JIT support for SKF_AD_HATYPE
- Use unsigned access for unsigned SKB fields
- Quit clobbering callee saved registers in JIT code
- Fix multiple problems in JIT skb access helpers
Loongson 3:
- Select MIPS_L1_CACHE_SHIFT_6
Octeon:
- Remove vestiges of CONFIG_CAVIUM_OCTEON_2ND_KERNEL
- Remove unused L2C types and macros.
- Remove unused SLI types and macros.
- Fix compile error when USB is not enabled.
- Octeon: Remove unused PCIERCX types and macros.
- Octeon: Clean up platform code.
SNI:
- Remove recursive include of cpu-feature-overrides.h
Sibyte:
- Export symbol periph_rev to sb1250-mac network driver.
- Fix Kconfig warning.
Generic platform:
- Enable Root FS on NFS in generic_defconfig
SMP-MT:
- Use CPU interrupt controller IPI IRQ domain support
UASM:
- Add support for LHU for uasm.
- Remove needless ISA abstraction
mm:
- Add 48-bit VA space and 4-level page tables for 4K pages.
PCI:
- Add controllers before the specified head
irqchip driver for MIPS CPU:
- Replace magic 0x100 with IE_SW0
- Prepare for non-legacy IRQ domains
- Introduce IPI IRQ domain support
MAINTAINERS:
- Update email-id of Rahul Bedarkar
NET:
- sb1250-mac: Add missing MODULE_LICENSE()
CPUFREQ:
- Loongson2: drop set_cpus_allowed_ptr()
Misc:
- Disable Werror when W= is set
- Opt into HAVE_COPY_THREAD_TLS
- Enable GENERIC_CPU_AUTOPROBE
- Use common outgoing-CPU-notification code
- Remove dead define of ST_OFF
- Remove CONFIG_ARCH_HAS_ILOG2_U{32,64}
- Stengthen IPI IRQ domain sanity check
- Remove confusing else statement in __do_page_fault()
- Don't unnecessarily include kmalloc.h into <asm/cache.h>.
- Delete unused definition of SMP_CACHE_SHIFT.
- Delete redundant definition of SMP_CACHE_BYTES"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (39 commits)
MIPS: Sibyte: Fix Kconfig warning.
MIPS: Sibyte: Export symbol periph_rev to sb1250-mac network driver.
NET: sb1250-mac: Add missing MODULE_LICENSE()
MAINTAINERS: Update email-id of Rahul Bedarkar
MIPS: Remove confusing else statement in __do_page_fault()
MIPS: Stengthen IPI IRQ domain sanity check
MIPS: smp-mt: Use CPU interrupt controller IPI IRQ domain support
irqchip: mips-cpu: Introduce IPI IRQ domain support
irqchip: mips-cpu: Prepare for non-legacy IRQ domains
irqchip: mips-cpu: Replace magic 0x100 with IE_SW0
MIPS: Remove CONFIG_ARCH_HAS_ILOG2_U{32,64}
MIPS: generic: Enable Root FS on NFS in generic_defconfig
MIPS: mach-rm: Remove recursive include of cpu-feature-overrides.h
MIPS: Opt into HAVE_COPY_THREAD_TLS
CPUFREQ: Loongson2: drop set_cpus_allowed_ptr()
MIPS: uasm: Remove needless ISA abstraction
MIPS: Remove dead define of ST_OFF
MIPS: Use common outgoing-CPU-notification code
MIPS: math-emu: Fix BC1EQZ and BC1NEZ condition handling
MIPS: r2-on-r6-emu: Clear BLTZALL and BGEZALL debugfs counters
...
projects / karo-tx-linux.git / log