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To avoid clearing of capabilities or security related extended
attributes too early, inode_change_ok() will need to take dentry instead
of inode. Propagate it down to fuse_do_setattr().
Acked-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
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To avoid clearing of capabilities or security related extended
attributes too early, inode_change_ok() will need to take dentry instead
of inode. ceph_setattr() has the dentry easily available but
__ceph_setattr() is also called from ceph_set_acl() where dentry is not
easily available. Luckily that call path does not need inode_change_ok()
to be called anyway. So reorganize functions a bit so that
inode_change_ok() is called only from paths where dentry is available.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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To avoid clearing of capabilities or security related extended
attributes too early, inode_change_ok() will need to take dentry instead
of inode. Propagate dentry down to functions calling inode_change_ok().
This is rather straightforward except for xfs_set_mode() function which
does not have dentry easily available. Luckily that function does not
call inode_change_ok() anyway so we just have to do a little dance with
function prototypes.
Acked-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
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When file permissions are modified via chmod(2) and the user is not in
the owning group or capable of CAP_FSETID, the setgid bit is cleared in
inode_change_ok(). Setting a POSIX ACL via setxattr(2) sets the file
permissions as well as the new ACL, but doesn't clear the setgid bit in
a similar way; this allows to bypass the check in chmod(2). Fix that.
References: CVE-2016-7097
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
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... it would get converted to regular if such had been attempted
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jan Kara <jack@suse.cz>
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If we hold the superblock lock while calling reiserfs_quota_on_mount(), we can
deadlock our own worker - mount blocks kworker/3:2, sleeps forever more.
crash> ps|grep UN
715 2 3 ffff880220734d30 UN 0.0 0 0 [kworker/3:2]
9369 9341 2 ffff88021ffb7560 UN 1.3 493404 123184 Xorg
9665 9664 3 ffff880225b92ab0 UN 0.0 47368 812 udisks-daemon
10635 10403 3 ffff880222f22c70 UN 0.0 14904 936 mount
crash> bt ffff880220734d30
PID: 715 TASK: ffff880220734d30 CPU: 3 COMMAND: "kworker/3:2"
#0 [ffff8802244c3c20] schedule at ffffffff8144584b
#1 [ffff8802244c3cc8] __rt_mutex_slowlock at ffffffff814472b3
#2 [ffff8802244c3d28] rt_mutex_slowlock at ffffffff814473f5
#3 [ffff8802244c3dc8] reiserfs_write_lock at ffffffffa05f28fd [reiserfs]
#4 [ffff8802244c3de8] flush_async_commits at ffffffffa05ec91d [reiserfs]
#5 [ffff8802244c3e08] process_one_work at ffffffff81073726
#6 [ffff8802244c3e68] worker_thread at ffffffff81073eba
#7 [ffff8802244c3ec8] kthread at ffffffff810782e0
#8 [ffff8802244c3f48] kernel_thread_helper at ffffffff81450064
crash> rd ffff8802244c3cc8 10
ffff8802244c3cc8: ffffffff814472b3 ffff880222f23250 .rD.....P2."....
ffff8802244c3cd8: 0000000000000000 0000000000000286 ................
ffff8802244c3ce8: ffff8802244c3d30 ffff880220734d80 0=L$.....Ms ....
ffff8802244c3cf8: ffff880222e8f628 0000000000000000 (.."............
ffff8802244c3d08: 0000000000000000 0000000000000002 ................
crash> struct rt_mutex ffff880222e8f628
struct rt_mutex {
wait_lock = {
raw_lock = {
slock = 65537
}
},
wait_list = {
node_list = {
next = 0xffff8802244c3d48,
prev = 0xffff8802244c3d48
}
},
owner = 0xffff880222f22c71,
save_state = 0
}
crash> bt 0xffff880222f22c70
PID: 10635 TASK: ffff880222f22c70 CPU: 3 COMMAND: "mount"
#0 [ffff8802216a9868] schedule at ffffffff8144584b
#1 [ffff8802216a9910] schedule_timeout at ffffffff81446865
#2 [ffff8802216a99a0] wait_for_common at ffffffff81445f74
#3 [ffff8802216a9a30] flush_work at ffffffff810712d3
#4 [ffff8802216a9ab0] schedule_on_each_cpu at ffffffff81074463
#5 [ffff8802216a9ae0] invalidate_bdev at ffffffff81178aba
#6 [ffff8802216a9af0] vfs_load_quota_inode at ffffffff811a3632
#7 [ffff8802216a9b50] dquot_quota_on_mount at ffffffff811a375c
#8 [ffff8802216a9b80] finish_unfinished at ffffffffa05dd8b0 [reiserfs]
#9 [ffff8802216a9cc0] reiserfs_fill_super at ffffffffa05de825 [reiserfs]
RIP: 00007f7b9303997a RSP: 00007ffff443c7a8 RFLAGS: 00010202
RAX: 00000000000000a5 RBX: ffffffff8144ef12 RCX: 00007f7b932e9ee0
RDX: 00007f7b93d9a400 RSI: 00007f7b93d9a3e0 RDI: 00007f7b93d9a3c0
RBP: 00007f7b93d9a2c0 R8: 00007f7b93d9a550 R9: 0000000000000001
R10: ffffffffc0ed040e R11: 0000000000000202 R12: 000000000000040e
R13: 0000000000000000 R14: 00000000c0ed040e R15: 00007ffff443ca20
ORIG_RAX: 00000000000000a5 CS: 0033 SS: 002b
Signed-off-by: Mike Galbraith <efault@gmx.de>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Mike Galbraith <mgalbraith@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
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As Al properly points out, len is guaranteed to be smaller than
PAGE_SIZE when we reach udf_adinicb_write_begin() as otherwise we would
have converted the file to the normal format.
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Jan Kara <jack@suse.cz>
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The manpage for quotactl says that the Q_XGETQSTAT command is
"useful in finding out how much space is spent to store quota
information," but the current implementation does not report this
info if the inode is allocated, but its quota type is not enabled.
This is a change from the earlier XFS implementation, which
reported information about allocated quota inodes even if their
quota type was not currently active.
Change quota_getstate() and quota_getstatev() to copy out the inode
information if the filesystem has provided it, even if the quota
type for that inode is not currently active.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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ext2_get_group_desc() can return NULL if there is some error. This
usually means there is some programming error in the ext2 driver itself
but let's be defensive and handle that case.
Coverity-id: 115628
Signed-off-by: Jan Kara <jack@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull lkdtm update from Kees Cook:
"Fix rebuild problem with LKDTM's rodata test"
[ This, and the usercopy branch, both came in before the merge window
closed, but ended up in my 'need to look more' queue and thus got
merged only after rc1 was out ]
* tag 'lkdtm-v4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
lkdtm: Fix targets for objcopy usage
lkdtm: fix false positive warning from -Wmaybe-uninitialized
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull usercopy protection from Kees Cook:
"Tbhis implements HARDENED_USERCOPY verification of copy_to_user and
copy_from_user bounds checking for most architectures on SLAB and
SLUB"
* tag 'usercopy-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
mm: SLUB hardened usercopy support
mm: SLAB hardened usercopy support
s390/uaccess: Enable hardened usercopy
sparc/uaccess: Enable hardened usercopy
powerpc/uaccess: Enable hardened usercopy
ia64/uaccess: Enable hardened usercopy
arm64/uaccess: Enable hardened usercopy
ARM: uaccess: Enable hardened usercopy
x86/uaccess: Enable hardened usercopy
mm: Hardened usercopy
mm: Implement stack frame object validation
mm: Add is_migrate_cma_page
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When I initially added the unsafe_[get|put]_user() helpers in commit
5b24a7a2aa20 ("Add 'unsafe' user access functions for batched
accesses"), I made the mistake of modeling the interface on our
traditional __[get|put]_user() functions, which return zero on success,
or -EFAULT on failure.
That interface is fairly easy to use, but it's actually fairly nasty for
good code generation, since it essentially forces the caller to check
the error value for each access.
In particular, since the error handling is already internally
implemented with an exception handler, and we already use "asm goto" for
various other things, we could fairly easily make the error cases just
jump directly to an error label instead, and avoid the need for explicit
checking after each operation.
So switch the interface to pass in an error label, rather than checking
the error value in the caller. Best do it now before we start growing
more users (the signal handling code in particular would be a good place
to use the new interface).
So rather than
if (unsafe_get_user(x, ptr))
... handle error ..
the interface is now
unsafe_get_user(x, ptr, label);
where an error during the user mode fetch will now just cause a jump to
'label' in the caller.
Right now the actual _implementation_ of this all still ends up being a
"if (err) goto label", and does not take advantage of any exception
label tricks, but for "unsafe_put_user()" in particular it should be
fairly straightforward to convert to using the exception table model.
Note that "unsafe_get_user()" is much harder to convert to a clever
exception table model, because current versions of gcc do not allow the
use of "asm goto" (for the exception) with output values (for the actual
value to be fetched). But that is hopefully not a limitation in the
long term.
[ Also note that it might be a good idea to switch unsafe_get_user() to
actually _return_ the value it fetches from user space, but this
commit only changes the error handling semantics ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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In commit 874f9c7da9a4 ("printk: create pr_<level> functions"), new
pr_level defines were added to printk.c.
These new defines are guarded by an #ifdef CONFIG_PRINTK - however,
there is already a surrounding #ifdef CONFIG_PRINTK starting a lot
earlier in line 249 which means the newly introduced #ifdef is
unnecessary.
Let's remove it to avoid confusion.
Signed-off-by: Andreas Ziegler <andreas.ziegler@fau.de>
Cc: Joe Perches <joe@perches.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The caller expects %rdi to remain intact, push+pop it make that happen.
Fixes the following kind of explosions on my core2duo machine when
trying to reboot or shut down:
general protection fault: 0000 [#1] PREEMPT SMP
Modules linked in: i915 i2c_algo_bit drm_kms_helper cfbfillrect syscopyarea cfbimgblt sysfillrect sysimgblt fb_sys_fops cfbcopyarea drm netconsole configfs binfmt_misc iTCO_wdt psmouse pcspkr snd_hda_codec_idt e100 coretemp hwmon snd_hda_codec_generic i2c_i801 mii i2c_smbus lpc_ich mfd_core snd_hda_intel uhci_hcd snd_hda_codec snd_hwdep snd_hda_core ehci_pci 8250 ehci_hcd snd_pcm 8250_base usbcore evdev serial_core usb_common parport_pc parport snd_timer snd soundcore
CPU: 0 PID: 3070 Comm: reboot Not tainted 4.8.0-rc1-perf-dirty #69
Hardware name: /D946GZIS, BIOS TS94610J.86A.0087.2007.1107.1049 11/07/2007
task: ffff88012a0b4080 task.stack: ffff880123850000
RIP: 0010:[<ffffffff81003c92>] [<ffffffff81003c92>] x86_perf_event_update+0x52/0xc0
RSP: 0018:ffff880123853b60 EFLAGS: 00010087
RAX: 0000000000000001 RBX: ffff88012fc0a3c0 RCX: 000000000000001e
RDX: 0000000000000000 RSI: 0000000040000000 RDI: ffff88012b014800
RBP: ffff880123853b88 R08: ffffffffffffffff R09: 0000000000000000
R10: ffffea0004a012c0 R11: ffffea0004acedc0 R12: ffffffff80000001
R13: ffff88012b0149c0 R14: ffff88012b014800 R15: 0000000000000018
FS: 00007f8b155cd700(0000) GS:ffff88012fc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8b155f5000 CR3: 000000012a2d7000 CR4: 00000000000006f0
Stack:
ffff88012fc0a3c0 ffff88012b014800 0000000000000004 0000000000000001
ffff88012fc1b750 ffff880123853bb0 ffffffff81003d59 ffff88012b014800
ffff88012fc0a3c0 ffff88012b014800 ffff880123853bd8 ffffffff81003e13
Call Trace:
[<ffffffff81003d59>] x86_pmu_stop+0x59/0xd0
[<ffffffff81003e13>] x86_pmu_del+0x43/0x140
[<ffffffff8111705d>] event_sched_out.isra.105+0xbd/0x260
[<ffffffff8111738d>] __perf_remove_from_context+0x2d/0xb0
[<ffffffff8111745d>] __perf_event_exit_context+0x4d/0x70
[<ffffffff810c8826>] generic_exec_single+0xb6/0x140
[<ffffffff81117410>] ? __perf_remove_from_context+0xb0/0xb0
[<ffffffff81117410>] ? __perf_remove_from_context+0xb0/0xb0
[<ffffffff810c898f>] smp_call_function_single+0xdf/0x140
[<ffffffff81113d27>] perf_event_exit_cpu_context+0x87/0xc0
[<ffffffff81113d73>] perf_reboot+0x13/0x40
[<ffffffff8107578a>] notifier_call_chain+0x4a/0x70
[<ffffffff81075ad7>] __blocking_notifier_call_chain+0x47/0x60
[<ffffffff81075b06>] blocking_notifier_call_chain+0x16/0x20
[<ffffffff81076a1d>] kernel_restart_prepare+0x1d/0x40
[<ffffffff81076ae2>] kernel_restart+0x12/0x60
[<ffffffff81076d56>] SYSC_reboot+0xf6/0x1b0
[<ffffffff811a823c>] ? mntput_no_expire+0x2c/0x1b0
[<ffffffff811a83e4>] ? mntput+0x24/0x40
[<ffffffff811894fc>] ? __fput+0x16c/0x1e0
[<ffffffff811895ae>] ? ____fput+0xe/0x10
[<ffffffff81072fc3>] ? task_work_run+0x83/0xa0
[<ffffffff81001623>] ? exit_to_usermode_loop+0x53/0xc0
[<ffffffff8100105a>] ? trace_hardirqs_on_thunk+0x1a/0x1c
[<ffffffff81076e6e>] SyS_reboot+0xe/0x10
[<ffffffff814c4ba5>] entry_SYSCALL_64_fastpath+0x18/0xa3
Code: 7c 4c 8d af c0 01 00 00 49 89 fe eb 10 48 09 c2 4c 89 e0 49 0f b1 55 00 4c 39 e0 74 35 4d 8b a6 c0 01 00 00 41 8b 8e 60 01 00 00 <0f> 33 8b 35 6e 02 8c 00 48 c1 e2 20 85 f6 7e d2 48 89 d3 89 cf
RIP [<ffffffff81003c92>] x86_perf_event_update+0x52/0xc0
RSP <ffff880123853b60>
---[ end trace 7ec95181faf211be ]---
note: reboot[3070] exited with preempt_count 2
Cc: Borislav Petkov <bp@suse.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Fixes: f5967101e9de ("x86/hweight: Get rid of the special calling convention")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull more block fixes from Jens Axboe:
"As mentioned in the pull the other day, a few more fixes for this
round, all related to the bio op changes in this series.
Two fixes, and then a cleanup, renaming bio->bi_rw to bio->bi_opf. I
wanted to do that change right after or right before -rc1, so that
risk of conflict was reduced. I just rebased the series on top of
current master, and no new ->bi_rw usage has snuck in"
* 'for-linus' of git://git.kernel.dk/linux-block:
block: rename bio bi_rw to bi_opf
target: iblock_execute_sync_cache() should use bio_set_op_attrs()
mm: make __swap_writepage() use bio_set_op_attrs()
block/mm: make bdev_ops->rw_page() take a bool for read/write
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Pull drm zpos property support from Dave Airlie:
"This tree was waiting on some media stuff I hadn't had time to get a
stable branchpoint off, so I just waited until it was all in your tree
first.
It's been around a bit on the list and shouldn't affect anything
outside adding the generic API and moving some ARM drivers to using
it"
* tag 'drm-for-v4.8-zpos' of git://people.freedesktop.org/~airlied/linux:
drm: rcar: use generic code for managing zpos plane property
drm/exynos: use generic code for managing zpos plane property
drm: sti: use generic zpos for plane
drm: add generic zpos property
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Since commit 63a4cc24867d, bio->bi_rw contains flags in the lower
portion and the op code in the higher portions. This means that
old code that relies on manually setting bi_rw is most likely
going to be broken. Instead of letting that brokeness linger,
rename the member, to force old and out-of-tree code to break
at compile time instead of at runtime.
No intended functional changes in this commit.
Signed-off-by: Jens Axboe <axboe@fb.com>
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The original commit missed this function, it needs to mark it a
write flush.
Cc: Mike Christie <mchristi@redhat.com>
Fixes: e742fc32fcb4 ("target: use bio op accessors")
Signed-off-by: Jens Axboe <axboe@fb.com>
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Cleaner than manipulating bio->bi_rw flags directly.
Signed-off-by: Jens Axboe <axboe@fb.com>
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Commit abf545484d31 changed it from an 'rw' flags type to the
newer ops based interface, but now we're effectively leaking
some bdev internals to the rest of the kernel. Since we only
care about whether it's a read or a write at that level, just
pass in a bool 'is_write' parameter instead.
Then we can also move op_is_write() and friends back under
CONFIG_BLOCK protection.
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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Pull documentation fixes from Jonathan Corbet:
"Three fixes for the docs build, including removing an annoying warning
on 'make help' if sphinx isn't present"
* tag 'doc-4.8-fixes' of git://git.lwn.net/linux:
DocBook: use DOCBOOKS="" to ignore DocBooks instead of IGNORE_DOCBOOKS=1
Documenation: update cgroup's document path
Documentation/sphinx: do not warn about missing tools in 'make help'
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/binfmt_misc
Pull binfmt_misc update from James Bottomley:
"This update is to allow architecture emulation containers to function
such that the emulation binary can be housed outside the container
itself. The container and fs parts both have acks from relevant
experts.
To use the new feature you have to add an F option to your binfmt_misc
configuration"
From the docs:
"The usual behaviour of binfmt_misc is to spawn the binary lazily when
the misc format file is invoked. However, this doesn't work very well
in the face of mount namespaces and changeroots, so the F mode opens
the binary as soon as the emulation is installed and uses the opened
image to spawn the emulator, meaning it is always available once
installed, regardless of how the environment changes"
* tag 'binfmt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/binfmt_misc:
binfmt_misc: add F option description to documentation
binfmt_misc: add persistent opened binary handler for containers
fs: add filp_clone_open API
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In most cases, EPERM is returned on immutable inode, and there're only a
few places returning EACCES. I noticed this when running LTP on
overlayfs, setxattr03 failed due to unexpected EACCES on immutable
inode.
So converting all EACCES to EPERM on immutable inode.
Acked-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more vfs updates from Al Viro:
"Assorted cleanups and fixes.
In the "trivial API change" department - ->d_compare() losing 'parent'
argument"
* 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
cachefiles: Fix race between inactivating and culling a cache object
9p: use clone_fid()
9p: fix braino introduced in "9p: new helper - v9fs_parent_fid()"
vfs: make dentry_needs_remove_privs() internal
vfs: remove file_needs_remove_privs()
vfs: fix deadlock in file_remove_privs() on overlayfs
get rid of 'parent' argument of ->d_compare()
cifs, msdos, vfat, hfs+: don't bother with parent in ->d_compare()
affs ->d_compare(): don't bother with ->d_inode
fold _d_rehash() and __d_rehash() together
fold dentry_rcuwalk_invalidate() into its only remaining caller
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git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
Pull more xfs updates from Dave Chinner:
"This is the second part of the XFS updates for this merge cycle, and
contains the new reverse block mapping feature for XFS.
Reverse mapping allows us to track the owner of a specific block on
disk precisely. It is implemented as a set of btrees (one per
allocation group) that track the owners of allocated extents.
Effectively it is a "used space tree" that is updated when we allocate
or free extents. i.e. it is coherent with the free space btrees we
already maintain and never overlaps with them.
This reverse mapping infrastructure is the building block of several
upcoming features - reflink, copy-on-write data, dedupe, online
metadata and data scrubbing, highly accurate bad sector/data loss
reporting to users, and significantly improved reconstruction of
damaged and corrupted filesystems. There's a lot of new stuff coming
along in the next couple of cycles,a nd it all builds in the rmap
infrastructure.
As such, it's a huge chunk of new code with new on-disk format
features and internal infrastructure. It warns at mount time as an
experimental feature and that it may eat data (as we do with all new
on-disk features until they stabilise). We have not released
userspace suport for it yet - userspace support currently requires
download from Darrick's xfsprogs repo and build from source, so the
access to this feature is really developer/tester only at this point.
Initial userspace support will be released at the same time kernel
with this code in it is released.
The new rmap enabled code regresses 3 xfstests - all are ENOSPC
related corner cases, one of which Darrick posted a fix for a few
hours ago. The other two are fixed by infrastructure that is part of
the upcoming reflink patchset. This new ENOSPC infrastructure
requires a on-disk format tweak required to keep mount times in
check - we need to keep an on-disk count of allocated rmapbt blocks so
we don't have to scan the entire btrees at mount time to count them.
This is currently being tested and will be part of the fixes sent in
the next week or two so users will not be exposed to this change"
* tag 'xfs-rmap-for-linus-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (52 commits)
xfs: move (and rename) the deferred bmap-free tracepoints
xfs: collapse single use static functions
xfs: remove unnecessary parentheses from log redo item recovery functions
xfs: remove the extents array from the rmap update done log item
xfs: in btree_lshift, only allocate temporary cursor when needed
xfs: remove unnecesary lshift/rshift key initialization
xfs: remove the get*keys and update_keys btree ops pointers
xfs: enable the rmap btree functionality
xfs: don't update rmapbt when fixing agfl
xfs: disable XFS_IOC_SWAPEXT when rmap btree is enabled
xfs: add rmap btree block detection to log recovery
xfs: add rmap btree geometry feature flag
xfs: propagate bmap updates to rmapbt
xfs: enable the xfs_defer mechanism to process rmaps to update
xfs: log rmap intent items
xfs: create rmap update intent log items
xfs: add rmap btree insert and delete helpers
xfs: convert unwritten status of reverse mappings
xfs: remove an extent from the rmap btree
xfs: add an extent to the rmap btree
...
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull qstr constification updates from Al Viro:
"Fairly self-contained bunch - surprising lot of places passes struct
qstr * as an argument when const struct qstr * would suffice; it
complicates analysis for no good reason.
I'd prefer to feed that separately from the assorted fixes (those are
in #for-linus and with somewhat trickier topology)"
* 'work.const-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
qstr: constify instances in adfs
qstr: constify instances in lustre
qstr: constify instances in f2fs
qstr: constify instances in ext2
qstr: constify instances in vfat
qstr: constify instances in procfs
qstr: constify instances in fuse
qstr constify instances in fs/dcache.c
qstr: constify instances in nfs
qstr: constify instances in ocfs2
qstr: constify instances in autofs4
qstr: constify instances in hfs
qstr: constify instances in hfsplus
qstr: constify instances in logfs
qstr: constify dentry_init_security
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull mailcap fixlets from Mauro Carvalho Chehab:
"A small fixup for my and Shuah's entries in .mailcap.
Basically, those entries were with a syntax that makes
get_maintainer.pl to do the wrong thing"
* tag 'media/v4.8-6' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
.mailmap: Correct entries for Mauro Carvalho Chehab and Shuah Khan
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Pull virtio/vhost updates from Michael Tsirkin:
- new vsock device support in host and guest
- platform IOMMU support in host and guest, including compatibility
quirks for legacy systems.
- misc fixes and cleanups.
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
VSOCK: Use kvfree()
vhost: split out vringh Kconfig
vhost: detect 32 bit integer wrap around
vhost: new device IOTLB API
vhost: drop vringh dependency
vhost: convert pre sorted vhost memory array to interval tree
vhost: introduce vhost memory accessors
VSOCK: Add Makefile and Kconfig
VSOCK: Introduce vhost_vsock.ko
VSOCK: Introduce virtio_transport.ko
VSOCK: Introduce virtio_vsock_common.ko
VSOCK: defer sock removal to transports
VSOCK: transport-specific vsock_transport functions
vhost: drop vringh dependency
vop: pull in vhost Kconfig
virtio: new feature to detect IOMMU device quirk
balloon: check the number of available pages in leak balloon
vhost: lockless enqueuing
vhost: simplify work flushing
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Pull more KVM updates from Paolo Bonzini:
- ARM bugfix and MSI injection support
- x86 nested virt tweak and OOPS fix
- Simplify pvclock code (vdso bits acked by Andy Lutomirski).
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
nvmx: mark ept single context invalidation as supported
nvmx: remove comment about missing nested vpid support
KVM: lapic: fix access preemption timer stuff even if kernel_irqchip=off
KVM: documentation: fix KVM_CAP_X2APIC_API information
x86: vdso: use __pvclock_read_cycles
pvclock: introduce seqcount-like API
arm64: KVM: Set cpsr before spsr on fault injection
KVM: arm: vgic-irqfd: Workaround changing kvm_set_routing_entry prototype
KVM: arm/arm64: Enable MSI routing
KVM: arm/arm64: Enable irqchip routing
KVM: Move kvm_setup_default/empty_irq_routing declaration in arch specific header
KVM: irqchip: Convey devid to kvm_set_msi
KVM: Add devid in kvm_kernel_irq_routing_entry
KVM: api: Pass the devid in the msi routing entry
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Pull MIPS updates from Ralf Baechle:
"This is the main pull request for MIPS for 4.8. Also includes is a
minor SSB cleanup as SSB code traditionally is merged through the MIPS
tree:
ATH25:
- MIPS: Add default configuration for ath25
Boot:
- For zboot, copy appended dtb to the end of the kernel
- store the appended dtb address in a variable
BPF:
- Fix off by one error in offset allocation
Cobalt code:
- Fix typos
Core code:
- debugfs_create_file returns NULL on error, so don't use IS_ERR for
testing for errors.
- Fix double locking issue in RM7000 S-cache code. This would only
affect RM7000 ARC systems on reboot.
- Fix page table corruption on THP permission changes.
- Use compat_sys_keyctl for 32 bit userspace on 64 bit kernels.
David says, there are no compatibility issues raised by this fix.
- Move some signal code around.
- Rewrite r4k count/compare clockevent device registration such that
min_delta_ticks/max_delta_ticks files are guaranteed to be
initialized.
- Only register r4k count/compare as clockevent device if we can
assume the clock to be constant.
- Fix MSA asm warnings in control reg accessors
- uasm and tlbex fixes and tweaking.
- Print segment physical address when EU=1.
- Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO.
- CP: Allow booting by VP other than VP 0
- Cache handling fixes and optimizations for r4k class caches
- Add hotplug support for R6 processors
- Cleanup hotplug bits in kconfig
- traps: return correct si code for accessing nonmapped addresses
- Remove cpu_has_safe_index_cacheops
Lantiq:
- Register IRQ handler for virtual IRQ number
- Fix EIU interrupt loading code
- Use the real EXIN count
- Fix build error.
Loongson 3:
- Increase HPET_MIN_PROG_DELTA and decrease HPET_MIN_CYCLES
Octeon:
- Delete built-in DTB pruning code for D-Link DSR-1000N.
- Clean up GPIO definitions in dlink_dsr-1000n.dts.
- Add more LEDs to the DSR-100n DTS
- Fix off by one in octeon_irq_gpio_map()
- Typo fixes
- Enable SATA by default in cavium_octeon_defconfig
- Support readq/writeq()
- Remove forced mappings of USB interrupts.
- Ensure DMA descriptors are always in the low 4GB
- Improve USB reset code for OCTEON II.
Pistachio:
- Add maintainers entry for pistachio SoC Support
- Remove plat_setup_iocoherency
Ralink:
- Fix pwm UART in spis group pinmux.
SSB:
- Change bare unsigned to unsigned int to suit coding style
Tools:
- Fix reloc tool compiler warnings.
Other:
- Delete use of ARCH_WANT_OPTIONAL_GPIOLIB"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (61 commits)
MIPS: mm: Fix definition of R6 cache instruction
MIPS: tools: Fix relocs tool compiler warnings
MIPS: Cobalt: Fix typo
MIPS: Octeon: Fix typo
MIPS: Lantiq: Fix build failure
MIPS: Use CPHYSADDR to implement mips32 __pa
MIPS: Octeon: Dlink_dsr-1000n.dts: add more leds.
MIPS: Octeon: Clean up GPIO definitions in dlink_dsr-1000n.dts.
MIPS: Octeon: Delete built-in DTB pruning code for D-Link DSR-1000N.
MIPS: store the appended dtb address in a variable
MIPS: ZBOOT: copy appended dtb to the end of the kernel
MIPS: ralink: fix spis group pinmux
MIPS: Factor o32 specific code into signal_o32.c
MIPS: non-exec stack & heap when non-exec PT_GNU_STACK is present
MIPS: Use per-mm page to execute branch delay slot instructions
MIPS: Modify error handling
MIPS: c-r4k: Use SMP calls for CM indexed cache ops
MIPS: c-r4k: Avoid small flush_icache_range SMP calls
MIPS: c-r4k: Local flush_icache_range cache op override
MIPS: c-r4k: Split r4k_flush_kernel_vmap_range()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"Mostly tooling fixes and some late tooling updates, plus two perf
related printk message fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf tests bpf: Use SyS_epoll_wait alias
perf tests: objdump output can contain multi byte chunks
perf record: Add --sample-cpu option
perf hists: Introduce output_resort_cb method
perf tools: Move config/Makefile into Makefile.config
perf tests: Add test for bitmap_scnprintf function
tools lib: Add bitmap_and function
tools lib: Add bitmap_scnprintf function
tools lib: Add bitmap_alloc function
tools lib traceevent: Ignore generated library files
perf tools: Fix build failure on perl script context
perf/core: Change log level for duration warning to KERN_INFO
perf annotate: Plug filename string leak
perf annotate: Introduce strerror for handling symbol__disassemble() errors
perf annotate: Rename symbol__annotate() to symbol__disassemble()
perf/x86: Modify error message in virtualized environment
perf target: str_error_r() always returns the buffer it receives
perf annotate: Use pipe + fork instead of popen
perf evsel: Introduce constructor for cycles event
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Two fixes and a cleanup-fix, to the syscall entry code and to ptrace"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/syscalls/64: Add compat_sys_keyctl for 32-bit userspace
x86/ptrace: Stop setting TS_COMPAT in ptrace code
x86/vdso: Error out if the vDSO isn't a valid DSO
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Pull arch/sh updates from Rich Felker:
"These changes improve device tree support (including builtin DTB), add
support for the J-Core J2 processor, an open source synthesizable
reimplementation of the SH-2 ISA, resolve a longstanding sigcontext
ABI mismatch issue, and fix various bugs including nommu-specific
issues and minor regressions introduced in 4.6.
The J-Core arch support is included here but to be usable it needs
drivers that are waiting on approval/inclusion from their subsystem
maintainers"
* tag 'sh-for-4.8' of git://git.libc.org/linux-sh: (23 commits)
sh: add device tree source for J2 FPGA on Mimas v2 board
sh: add defconfig for J-Core J2
sh: use common clock framework with device tree boards
sh: system call wire up
sh: Delete unnecessary checks before the function call "mempool_destroy"
sh: do not perform IPI-based cache flush except on boards that need it
sh: add SMP support for J2
sh: SMP support for SH2 entry.S
sh: add working futex atomic ops on userspace addresses for smp
sh: add J2 atomics using the cas.l instruction
sh: add AT_HWCAP flag for J-Core cas.l instruction
sh: add support for J-Core J2 processor
sh: fix build regression with CONFIG_OF && !CONFIG_OF_FLATTREE
sh: allow clocksource drivers to register sched_clock backends
sh: make heartbeat driver explicitly non-modular
sh: make board-secureedge5410 explicitly non-modular
sh: make mm/asids-debugfs explicitly non-modular
sh: make time.c explicitly non-modular
sh: fix futex/robust_list on nommu models
sh: disable aliased page logic on NOMMU models
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
- fix HugeTLB leak due to CoW and PTE_RDONLY mismatch
- avoid accessing unmapped FDT fields when checking validity
- correctly account for vDSO AUX entry in ARCH_DLINFO
- fix kallsyms with absolute expressions in linker script
- kill unnecessary symbol-based relocs in vmlinux
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Fix copy-on-write referencing in HugeTLB
arm64: mm: avoid fdt_check_header() before the FDT is fully mapped
arm64: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO
arm64: relocatable: suppress R_AARCH64_ABS64 relocations in vmlinux
arm64: vmlinux.lds: make __rela_offset and __dynsym_offset ABSOLUTE
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git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"This set of changes improve some aspects of the atomic API as well as
make use of this new API in the regulator framework to allow properly
dealing with critical regulators controlled by a PWM.
Aside from that there's a bunch of updates and cleanups for existing
drivers, as well as the addition of new drivers for the Broadcom
iProc, STMPE and ChromeOS EC controllers"
* tag 'pwm/for-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (44 commits)
regulator: pwm: Document pwm-dutycycle-unit and pwm-dutycycle-range
regulator: pwm: Support extra continuous mode cases
pwm: Add ChromeOS EC PWM driver
dt-bindings: pwm: Add binding for ChromeOS EC PWM
mfd: cros_ec: Add EC_PWM function definitions
mfd: cros_ec: Add cros_ec_cmd_xfer_status() helper
pwm: atmel: Use of_device_get_match_data()
pwm: atmel: Fix checkpatch warnings
pwm: atmel: Fix disabling of PWM channels
dt-bindings: pwm: Add R-Car H3 device tree bindings
pwm: rcar: Use ARCH_RENESAS
pwm: tegra: Add support for Tegra186
dt-bindings: pwm: tegra: Add compatible string for Tegra186
pwm: tegra: Avoid overflow when calculating duty cycle
pwm: tegra: Allow 100 % duty cycle
pwm: tegra: Add support for reset control
pwm: tegra: Rename mmio_base to regs
pwm: tegra: Remove useless padding
pwm: tegra: Drop NUM_PWM macro
pwm: lpc32xx: Set PWM_PIN_LEVEL bit to default value
...
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Pull NTB updates from Jon Mason:
"NTB bug fixes for the ntb_tool and ntb_perf, and improvements to the
ntb_perf and ntb_pingpong for increased debugability.
Also, modification to the ntb_transport layer to increase/decrease
the number of transport entries depending on the ring size"
* tag 'ntb-4.8' of git://github.com/jonmason/ntb:
NTB: ntb_hw_intel: use local variable pdev
NTB: ntb_hw_intel: show BAR size in debugfs info
ntb_test: Add a selftest script for the NTB subsystem
ntb_perf: clear link_is_up flag when the link goes down.
ntb_pingpong: Add a debugfs file to get the ping count
ntb_tool: Add link status and files to debugfs
ntb_tool: Postpone memory window initialization for the user
ntb_perf: Wait for link before running test
ntb_perf: Return results by reading the run file
ntb_perf: Improve thread handling to increase robustness
ntb_perf: Schedule based on time not on performance
ntb_transport: Check the number of spads the hardware supports
ntb_tool: Add memory window debug support
ntb_perf: Allow limiting the size of the memory windows
NTB: allocate number transport entries depending on size of ring size
ntb_tool: BUG: Ensure the buffer size is large enough to return all spads
ntb_tool: Fix infinite loop bug when writing spad/peer_spad file
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull pstore fixes from Kees Cook:
"Fixes for pstore ramoops driver to catch bad kfree() and to use better
DT bindings"
* tag 'pstore-v4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
ramoops: use persistent_ram_free() instead of kfree() for freeing prz
ramoops: use DT reserved-memory bindings
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Pull SCSI fixes from James Bottomley:
"This is seven basic fixes (plus one MAINTAINER update) which came in
close to the merge window"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
ipr: Fix error return code in ipr_probe_ioa()
fcoe: add missing destroy_workqueue() on error in fcoe_init()
lpfc: Fix possible NULL pointer dereference
fcoe: Use default VLAN for FIP VLAN discovery
ipr: Wait to do async scan until scsi host is initialized
MAINTAINERS: Update cxlflash maintainers
cxlflash: Verify problem state area is mapped before notifying shutdown
lpfc: fix oops in lpfc_sli4_scmd_to_wqidx_distr() from lpfc_send_taskmgmt()
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- a stable dm-flakey fix to error read IO during the 'down_interval'
- a DM core suspend fix to establish the SUSPENDED flag before dropping
the SUSPENDING flag
- a blk-mq request-based DM (dm-mq) dm_stop_queue() fix to properly
stop the blk-mq hw_queues (and cancel pending requeue work); also
set/clear QUEUE_FLAG_STOPPED when stopping/starting the dm-mq
request_queue.
- a DM multipath fix to harden locking of in-core state flags in the
face of concurrent access while handling path failures under heavy
IO.
- a few small DM raid fixes to edge cases caught with further testing.
* tag 'dm-4.8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm raid: fix use of wrong status char during resynchronization
dm raid: constructor fails on non-zero incompat_features
dm raid: fix processing of max_recovery_rate constructor flag
dm: set DMF_SUSPENDED* _before_ clearing DMF_NOFLUSH_SUSPENDING
dm rq: fix the starting and stopping of blk-mq queues
dm mpath: add locking to multipath_resume and must_push_back
dm flakey: error READ bios during the down_interval
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Pull block fixes from Jens Axboe:
"Here's the second round of block updates for this merge window.
It's a mix of fixes for changes that went in previously in this round,
and fixes in general. This pull request contains:
- Fixes for loop from Christoph
- A bdi vs gendisk lifetime fix from Dan, worth two cookies.
- A blk-mq timeout fix, when on frozen queues. From Gabriel.
- Writeback fix from Jan, ensuring that __writeback_single_inode()
does the right thing.
- Fix for bio->bi_rw usage in f2fs from me.
- Error path deadlock fix in blk-mq sysfs registration from me.
- Floppy O_ACCMODE fix from Jiri.
- Fix to the new bio op methods from Mike.
One more followup will be coming here, ensuring that we don't
propagate the block types outside of block. That, and a rename of
bio->bi_rw is coming right after -rc1 is cut.
- Various little fixes"
* 'for-linus' of git://git.kernel.dk/linux-block:
mm/block: convert rw_page users to bio op use
loop: make do_req_filebacked more robust
loop: don't try to use AIO for discards
blk-mq: fix deadlock in blk_mq_register_disk() error path
Include: blkdev: Removed duplicate 'struct request;' declaration.
Fixup direct bi_rw modifiers
block: fix bdi vs gendisk lifetime mismatch
blk-mq: Allow timeouts to run while queue is freezing
nbd: fix race in ioctl
block: fix use-after-free in seq file
f2fs: drop bio->bi_rw manual assignment
block: add missing group association in bio-cloning functions
blkcg: kill unused field nr_undestroyed_grps
writeback: Write dirty times for WB_SYNC_ALL writeback
floppy: fix open(O_ACCMODE) for ioctl-only open
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull PNP fix from Rafael Wysocki:
"This fixes build errors due to a missing header file inclusion in
drivers/pnp/pnpbios/core.c (Randy Dunlap)"
* tag 'pnp-extra-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PNP: pnpbios: add header file to fix build errors
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"Two more fixes in ACPI drivers, one in the ACPI EC driver
(stable-candidate) and one in the ACPI button driver.
Specifics:
- An ACPI EC driver fix from the 4.3 cycle may cause the ACPICA's
method reentrancy limit to be exceeded for a _Qxx method due to a
large number of concurrent EC operations, so prevent that from
happening by moving the EC handling into a separate workqueue with
a limit on the number of concurrently executed work items (Lv
Zheng)
- Fix the cleanup code in the ACPI button driver that forgets to
clear two variables on exit which causes an error to occur on the
next attmpt to load the driver (Benjamin Tissoires)"
* tag 'acpi-extra-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / EC: Work around method reentrancy limit in ACPICA for _Qxx
ACPI / button: remove pointer to old lid_sysfs on unbind
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"A few more fixes and cleanups in the x86-64 low-level hibernation
code, PM core, cpufreq (Kconfig and intel_pstate), and the operating
points framework.
Specifics:
- Prevent the low-level assembly hibernate code on x86-64 from
referring to __PAGE_OFFSET directly as a symbol which doesn't work
when the kernel identity mapping base is randomized, in which case
__PAGE_OFFSET is a variable (Rafael Wysocki).
- Avoid selecting CPU_FREQ_STAT by default as the statistics are not
required for proper cpufreq operation (Borislav Petkov).
- Add Skylake-X and Broadwell-X IDs to the intel_pstate's list of
processors where out-of-band (OBB) control of P-states is possible
and if that is in use, intel_pstate should not attempt to manage
P-states (Srinivas Pandruvada).
- Drop some unnecessary checks from the wakeup IRQ handling code in
the PM core (Markus Elfring).
- Reduce the number operating performance point (OPP) lookups in one
of the OPP framework's helper functions (Jisheng Zhang)"
* tag 'pm-extra-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
x86/power/64: Do not refer to __PAGE_OFFSET from assembly code
cpufreq: Do not default-yes CPU_FREQ_STAT
cpufreq: intel_pstate: Add more out-of-band IDs
PM / OPP: optimize dev_pm_opp_set_rate() performance a bit
PM-wakeup: Delete unnecessary checks before three function calls
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull more input updates from Dmitry Torokhov:
"Two new drivers for touchscreen controllers:
- Silead touchscreen controllers
- SiS 9200 family touchscreen controllers
and a few driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: silead - remove some dead code
Input: sis-i2c - select CONFIG_CRC_ITU_T
Input: add driver for SiS 9200 family I2C touchscreen controllers
Input: ili210x - fix permissions on "calibrate" attribute
Input: elan_i2c - properly wake up touchpad on ASUS laptops
Input: add driver for Silead touchscreens
Input: elantech - fix debug dump of the current packet
Input: rotary_encoder - support binary encoding of states
Input: xpad - power off wireless 360 controllers on suspend
Input: i8042 - break load dependency between atkbd/psmouse and i8042
Input: synaptics-rmi4 - do not check for NULL when calling of_node_put()
Input: cros_ec_keyb - cleanup use of dev
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull more USB updates from Greg KH:
"Here are a few more straggler patches for USB for 4.8-rc1.
Most of these are for the usb-serial driver tree. All of those have
been in linux-next for a long time, but missed my previous pull
request to you.
The remaining change is to fix up a staging tree build error, due to
some USB gadget driver changes that went in. I put it in this tree as
it was for a USB driver and people are reporting the build error on
your tree.
All of these have been in linux-next for this week, and longer for the
usb-serial changes"
* tag 'usb-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
staging: emxx_udc: allow modular build
USB: serial: use variable for status
USB: serial: option: add support for Telit LE910 PID 0x1206
USB: serial: cp210x: use kmemdup
USB: serial: ti_usb_3410_5052: use functions rather than macros
USB: serial: ti_usb_3410_5052: remove ti_usb_3410_5052.h
USB: serial: ti_usb_3410_5052: use __packed
USB: serial: ti_usb_3410_5052: remove useless comments
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persistent_ram_zone(=prz) structures are allocated by persistent_ram_new(),
which includes vmap() or ioremap(). But they are currently freed by
kfree(). This uses persistent_ram_free() for correct this asymmetry usage.
Signed-off-by: Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@hitachi.com>
Cc: Mark Salyzyn <salyzyn@android.com>
Cc: Seiji Aguchi <seiji.aguchi.tr@hitachi.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
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Instead of a ramoops-specific node, use a child node of /reserved-memory.
This requires that of_platform_device_create() be explicitly called
for the node, though, since "/reserved-memory" does not have its own
"compatible" property.
Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
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Clean up duplicated expression by replacing it with the equivalent local
variable pdev.
Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
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It will be useful to know the hardware configured BAR size to diagnose
issues with NTB memory windows.
Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
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