| Age | Commit message (Collapse) | Author | Files | Lines |
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Use the following command to test nfsv4(size of file1M is 1MB):
mount -t nfs -o vers=4.0,actimeo=60 127.0.0.1/dir1 /mnt
cp file1M /mnt
du -h /mnt/file1M -->0 within 60s, then 1M
When write is done(cp file1M /mnt), will call this:
nfs_writeback_done
nfs4_write_done
nfs4_write_done_cb
nfs_writeback_update_inode
nfs_post_op_update_inode_force_wcc_locked(change, ctime, mtime
nfs_post_op_update_inode_force_wcc_locked
nfs_set_cache_invalid
nfs_refresh_inode_locked
nfs_update_inode
nfsd write response contains change, ctime, mtime, the flag will be
clear after nfs_update_inode. Howerver, write response does not contain
space_used, previous open response contains space_used whose value is 0,
so inode->i_blocks is still 0.
nfs_getattr -->called by "du -h"
do_update |= force_sync || nfs_attribute_cache_expired -->false in 60s
cache_validity = READ_ONCE(NFS_I(inode)->cache_validity)
do_update |= cache_validity & (NFS_INO_INVALID_ATTR -->false
if (do_update) {
__nfs_revalidate_inode
}
Within 60s, does not send getattr request to nfsd, thus "du -h /mnt/file1M"
is 0.
Add a NFS_INO_INVALID_BLOCKS flag, set it when nfsv4 write is done.
Fixes: 16e143751727 ("NFS: More fine grained attribute tracking")
Signed-off-by: Zheng Bin <[email protected]>
Signed-off-by: Anna Schumaker <[email protected]>
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The "create" tracepoint records parts of the rpc_create arguments,
and the shutdown tracepoint records when the rpc_clnt is about to
signal pending tasks and destroy auths.
Signed-off-by: Chuck Lever <[email protected]>
Signed-off-by: Anna Schumaker <[email protected]>
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Refactor: Hoist create/destroy/disconnect tracepoints out of
xprtrdma and into the generic RPC client. Some benefits include:
- Enable tracing of xprt lifetime events for the socket transport
types
- Expose the different types of disconnect to help run down
issues with lingering connections
Signed-off-by: Chuck Lever <[email protected]>
Signed-off-by: Anna Schumaker <[email protected]>
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To help tie the recorded xdr_buf to a particular RPC transaction,
the client side version of this class should display task ID
information and the server side one should show the request's XID.
Signed-off-by: Chuck Lever <[email protected]>
Signed-off-by: Anna Schumaker <[email protected]>
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Add a tracepoint in another common exit point for failing RPCs.
Signed-off-by: Chuck Lever <[email protected]>
Signed-off-by: Anna Schumaker <[email protected]>
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Clean up: remove unnecessary commas, and fix a white-space nit.
Signed-off-by: Chuck Lever <[email protected]>
Signed-off-by: Anna Schumaker <[email protected]>
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Recent additions to the RPC_TASK flags neglected to update
the tracepoint ENUM definitions.
Signed-off-by: Chuck Lever <[email protected]>
Signed-off-by: Anna Schumaker <[email protected]>
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Signed-off-by: Chuck Lever <[email protected]>
Signed-off-by: Anna Schumaker <[email protected]>
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Avoid unnecessary cache sloshing by placing the buffer size
estimation update logic behind an atomic bit flag.
The size of GSS information included in each wrapped Reply does
not change during the lifetime of a GSS context. Therefore, the
au_rslack and au_ralign fields need to be updated only once after
establishing a fresh GSS credential.
Thus a slack size update must occur after a cred is created,
duplicated, renewed, or expires. I'm not sure I have this exactly
right. A trace point is introduced to track updates to these
variables to enable troubleshooting the problem if I missed a spot.
Signed-off-by: Chuck Lever <[email protected]>
Signed-off-by: Anna Schumaker <[email protected]>
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Pull nfsd updates from Bruce Fields:
"Highlights:
- Keep nfsd clients from unnecessarily breaking their own
delegations.
Note this requires a small kthreadd addition. The result is Tejun
Heo's suggestion (see link), and he was OK with this going through
my tree.
- Patch nfsd/clients/ to display filenames, and to fix byte-order
when displaying stateid's.
- fix a module loading/unloading bug, from Neil Brown.
- A big series from Chuck Lever with RPC/RDMA and tracing
improvements, and lay some groundwork for RPC-over-TLS"
Link: https://lore.kernel.org/r/[email protected]
* tag 'nfsd-5.8' of git://linux-nfs.org/~bfields/linux: (49 commits)
sunrpc: use kmemdup_nul() in gssp_stringify()
nfsd: safer handling of corrupted c_type
nfsd4: make drc_slab global, not per-net
SUNRPC: Remove unreachable error condition in rpcb_getport_async()
nfsd: Fix svc_xprt refcnt leak when setup callback client failed
sunrpc: clean up properly in gss_mech_unregister()
sunrpc: svcauth_gss_register_pseudoflavor must reject duplicate registrations.
sunrpc: check that domain table is empty at module unload.
NFSD: Fix improperly-formatted Doxygen comments
NFSD: Squash an annoying compiler warning
SUNRPC: Clean up request deferral tracepoints
NFSD: Add tracepoints for monitoring NFSD callbacks
NFSD: Add tracepoints to the NFSD state management code
NFSD: Add tracepoints to NFSD's duplicate reply cache
SUNRPC: svc_show_status() macro should have enum definitions
SUNRPC: Restructure svc_udp_recvfrom()
SUNRPC: Refactor svc_recvfrom()
SUNRPC: Clean up svc_release_skb() functions
SUNRPC: Refactor recvfrom path dealing with incomplete TCP receives
SUNRPC: Replace dprintk() call sites in TCP receive path
...
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Commit 9495b7e92f716ab2bd6814fab5e97ab4a39adfdd ("driver core: platform:
Initialize dma_parms for platform devices") in v5.7-rc5 causes
vb2_dma_contig_clear_max_seg_size() to kfree memory that was not
allocated by vb2_dma_contig_set_max_seg_size().
The assumption in vb2_dma_contig_set_max_seg_size() seems to be that
dev->dma_parms is always NULL when the driver is probed, and the case
where dev->dma_parms has bee initialized by someone else than the driver
(by calling vb2_dma_contig_set_max_seg_size) will cause a failure.
All the current users of these functions are platform devices, which now
always have dma_parms set by the driver core. To fix the issue for v5.7,
make vb2_dma_contig_set_max_seg_size() return an error if dma_parms is
NULL to be on the safe side, and remove the kfree code from
vb2_dma_contig_clear_max_seg_size().
For v5.8 we should remove the two functions and move the
dma_set_max_seg_size() calls into the drivers.
Signed-off-by: Tomi Valkeinen <[email protected]>
Fixes: 9495b7e92f71 ("driver core: platform: Initialize dma_parms for platform devices")
Cc: [email protected]
Acked-by: Marek Szyprowski <[email protected]>
Reviewed-by: Ulf Hansson <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
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previously injected
'Page not present' event may or may not get injected depending on
guest's state. If the event wasn't injected, there is no need to
inject the corresponding 'page ready' event as the guest may get
confused. E.g. Linux thinks that the corresponding 'page not present'
event wasn't delivered *yet* and allocates a 'dummy entry' for it.
This entry is never freed.
Note, 'wakeup all' events have no corresponding 'page not present'
event and always get injected.
s390 seems to always be able to inject 'page not present', the
change is effectively a nop.
Suggested-by: Vivek Goyal <[email protected]>
Signed-off-by: Vitaly Kuznetsov <[email protected]>
Message-Id: <[email protected]>
Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=208081
Signed-off-by: Paolo Bonzini <[email protected]>
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This adds the same per-file/per-directory DAX support for ext4 as was
done for xfs, now that we finally have consensus over what the
interface should be.
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An interesting thing happened when a guest Linux instance took a machine
check. The VMM unmapped the bad page from guest physical space and
passed the machine check to the guest.
Linux took all the normal actions to offline the page from the process
that was using it. But then guest Linux crashed because it said there
was a second machine check inside the kernel with this stack trace:
do_memory_failure
set_mce_nospec
set_memory_uc
_set_memory_uc
change_page_attr_set_clr
cpa_flush
clflush_cache_range_opt
This was odd, because a CLFLUSH instruction shouldn't raise a machine
check (it isn't consuming the data). Further investigation showed that
the VMM had passed in another machine check because is appeared that the
guest was accessing the bad page.
Fix is to check the scope of the poison by checking the MCi_MISC register.
If the entire page is affected, then unmap the page. If only part of the
page is affected, then mark the page as uncacheable.
This assumes that VMMs will do the logical thing and pass in the "whole
page scope" via the MCi_MISC register (since they unmapped the entire
page).
[ bp: Adjust to x86/entry changes. ]
Fixes: 284ce4011ba6 ("x86/memory_failure: Introduce {set, clear}_mce_nospec()")
Reported-by: Jue Wang <[email protected]>
Signed-off-by: Tony Luck <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Tested-by: Jue Wang <[email protected]>
Cc: <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
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to fixup conflicts in arch/x86/kernel/cpu/mce/core.c so MCE specific follow
up patches can be applied without creating a horrible merge conflict
afterwards.
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The entry rework moved interrupt entry code from the irqentry to the
noinstr section which made the irqentry section empty.
This breaks boundary checks which rely on the __irqentry_text_start/end
markers to find out whether a function in a stack trace is
interrupt/exception entry code. This affects the function graph tracer and
filter_irq_stacks().
As the IDT entry points are all sequentialy emitted this is rather simple
to unbreak by injecting __irqentry_text_start/end as global labels.
To make this work correctly:
- Remove the IRQENTRY_TEXT section from the x86 linker script
- Define __irqentry so it breaks the build if it's used
- Adjust the entry mirroring in PTI
- Remove the redundant kprobes and unwinder bound checks
Reported-by: Qian Cai <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
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vmlinux.o: warning: objtool: debug_locks_off()+0xd: call to __debug_locks_off() leaves .noinstr.text section
vmlinux.o: warning: objtool: match_held_lock()+0x6a: call to look_up_lock_class.isra.0() leaves .noinstr.text section
vmlinux.o: warning: objtool: lock_is_held_type()+0x90: call to lockdep_recursion_finish() leaves .noinstr.text section
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
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The typical pattern for trace_hardirqs_off_prepare() is:
ENTRY
lockdep_hardirqs_off(); // because hardware
... do entry magic
instrumentation_begin();
trace_hardirqs_off_prepare();
... do actual work
trace_hardirqs_on_prepare();
lockdep_hardirqs_on_prepare();
instrumentation_end();
... do exit magic
lockdep_hardirqs_on();
which shows that it's named wrong, rename it to
trace_hardirqs_off_finish(), as it concludes the hardirq_off transition.
Also, given that the above is the only correct order, make the traditional
all-in-one trace_hardirqs_off() follow suit.
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
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Kbuild test robot reports the following problem on ARM:
for 'xen_setup_callback_vector' [-Wmissing-prototypes]
1664 | void xen_setup_callback_vector(void) {}
| ^~~~~~~~~~~~~~~~~~~~~~~~~
The problem is that xen_setup_callback_vector is a x86 only thing, its
definition is present in arch/x86/xen/xen-ops.h but not on ARM. In
events_base.c there is a stub for !CONFIG_XEN_PVHVM but it is not declared
as 'static'.
On x86 the situation is hardly better: drivers/xen/events/events_base.c
doesn't include 'xen-ops.h' from arch/x86/xen/, it includes its namesake
from include/xen/ which also results in a 'no previous prototype' warning.
Currently, xen_setup_callback_vector() has two call sites: one in
drivers/xen/events_base.c and another in arch/x86/xen/suspend_hvm.c. The
former is placed under #ifdef CONFIG_X86 and the later is only compiled
in when CONFIG_XEN_PVHVM.
Resolve the issue by moving xen_setup_callback_vector() declaration to
arch neutral 'include/xen/hvm.h' as the implementation lives in arch
neutral drivers/xen/events/events_base.c.
Reported-by: kbuild test robot <[email protected]>
Signed-off-by: Vitaly Kuznetsov <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Juergen Gross <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
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Convert the last oldstyle defined vector to IDTENTRY_SYSVEC:
- Implement the C entry point with DEFINE_IDTENTRY_SYSVEC
- Emit the ASM stub with DECLARE_IDTENTRY_SYSVEC
- Remove the ASM idtentries in 64-bit
- Remove the BUILD_INTERRUPT entries in 32-bit
- Remove the old prototypes
Fixup the related XEN code by providing the primary C entry point in x86 to
avoid cluttering the generic code with X86'isms.
No functional change.
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Acked-by: Andy Lutomirski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Convert the XEN/PV hypercall to IDTENTRY:
- Emit the ASM stub with DECLARE_IDTENTRY
- Remove the ASM idtentry in 64-bit
- Remove the open coded ASM entry code in 32-bit
- Remove the old prototypes
The handler stubs need to stay in ASM code as they need corner case handling
and adjustment of the stack pointer.
Provide a new C function which invokes the entry/exit handling and calls
into the XEN handler on the interrupt stack if required.
The exit code is slightly different from the regular idtentry_exit() on
non-preemptible kernels. If the hypercall is preemptible and need_resched()
is set then XEN provides a preempt hypercall scheduling function.
Move this functionality into the entry code so it can use the existing
idtentry functionality.
[ mingo: Build fixes. ]
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Acked-by: Andy Lutomirski <[email protected]>
Acked-by: Juergen Gross <[email protected]>
Tested-by: Juergen Gross <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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Like __irq_enter/exit() but without time accounting. To be used for "empty"
system vectors like the scheduler IPI to avoid the overhead.
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Reviewed-by: Andy Lutomirski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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irq_enter()/exit() currently include RCU handling. To properly separate the RCU
handling code, provide variants which contain only the non-RCU related
functionality.
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Reviewed-by: Andy Lutomirski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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The hardware latency tracer calls into instrumentable functions. Move the
calls into the RCU watching sections and annotate them.
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Acked-by: Andy Lutomirski <[email protected]>
Cc: Paul E. McKenney <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
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For code that needs the ultimate performance (it can inline the @cmp
function too) or simply needs to avoid calling external functions for
whatever reason, provide an __always_inline variant of bsearch().
[ tglx: Renamed to __inline_bsearch() as suggested by Andy ]
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Alexandre Chartre <[email protected]>
Acked-by: Andy Lutomirski <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
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Warnings, bugs and stack protection fails from noinstr sections, e.g. low
level and early entry code, are likely to be fatal.
Mark them as "safe" to be invoked from noinstr protected code to avoid
annotating all usage sites. Getting the information out is important.
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Alexandre Chartre <[email protected]>
Acked-by: Peter Zijlstra <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
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context tracking lacks a few protection mechanisms against instrumentation:
- While the core functions are marked NOKPROBE they lack protection
against function tracing which is required as the function entry/exit
points can be utilized by BPF.
- static functions invoked from the protected functions need to be marked
as well as they can be instrumented otherwise.
- using plain inline allows the compiler to emit traceable and probable
functions.
Fix this by marking the functions noinstr and converting the plain inlines
to __always_inline.
The NOKPROBE_SYMBOL() annotations are removed as the .noinstr.text section
is already excluded from being probed.
Cures the following objtool warnings:
vmlinux.o: warning: objtool: enter_from_user_mode()+0x34: call to __context_tracking_exit() leaves .noinstr.text section
vmlinux.o: warning: objtool: prepare_exit_to_usermode()+0x29: call to __context_tracking_enter() leaves .noinstr.text section
vmlinux.o: warning: objtool: syscall_return_slowpath()+0x29: call to __context_tracking_enter() leaves .noinstr.text section
vmlinux.o: warning: objtool: do_syscall_64()+0x7f: call to __context_tracking_enter() leaves .noinstr.text section
vmlinux.o: warning: objtool: do_int80_syscall_32()+0x3d: call to __context_tracking_enter() leaves .noinstr.text section
vmlinux.o: warning: objtool: do_fast_syscall_32()+0x9c: call to __context_tracking_enter() leaves .noinstr.text section
and generates new ones...
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Masami Hiramatsu <[email protected]>
Reviewed-by: Alexandre Chartre <[email protected]>
Acked-by: Peter Zijlstra <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
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Currently instrumentation of atomic primitives is done at the architecture
level, while composites or fallbacks are provided at the generic level.
The result is that there are no uninstrumented variants of the
fallbacks. Since there is now need of such variants to isolate text poke
from any form of instrumentation invert this ordering.
Doing this means moving the instrumentation into the generic code as
well as having (for now) two variants of the fallbacks.
Notes:
- the various *cond_read* primitives are not proper fallbacks
and got moved into linux/atomic.c. No arch_ variants are
generated because the base primitives smp_cond_load*()
are instrumented.
- once all architectures are moved over to arch_atomic_ one of the
fallback variants can be removed and some 2300 lines reclaimed.
- atomic_{read,set}*() are no longer double-instrumented
Reported-by: Thomas Gleixner <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Mark Rutland <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
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Use __always_inline for atomic fallback wrappers. When building for size
(CC_OPTIMIZE_FOR_SIZE), some compilers appear to be less inclined to
inline even relatively small static inline functions that are assumed to
be inlinable such as atomic ops. This can cause problems, for example in
UACCESS regions.
While the fallback wrappers aren't pure wrappers, they are trivial
nonetheless, and the function they wrap should determine the final
inlining policy.
For x86 tinyconfig we observe:
- vmlinux baseline: 1315988
- vmlinux with patch: 1315928 (-60 bytes)
[ tglx: Cherry-picked from KCSAN ]
Suggested-by: Mark Rutland <[email protected]>
Signed-off-by: Marco Elver <[email protected]>
Acked-by: Mark Rutland <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
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Switch the function documentation to kerneldoc comments, and add
WARN_ON_ONCE asserts that the calling thread is a kernel thread and does
not have ->mm set (or has ->mm set in the case of unuse_mm).
Also give the functions a kthread_ prefix to better document the use case.
[[email protected]: fix a comment typo, cover the newly merged use_mm/unuse_mm caller in vfio]
Link: http://lkml.kernel.org/r/[email protected]
[[email protected]: powerpc/vas: fix up for {un}use_mm() rename]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Stephen Rothwell <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Tested-by: Jens Axboe <[email protected]>
Reviewed-by: Jens Axboe <[email protected]>
Acked-by: Felix Kuehling <[email protected]>
Acked-by: Greg Kroah-Hartman <[email protected]> [usb]
Acked-by: Haren Myneni <[email protected]>
Cc: Alex Deucher <[email protected]>
Cc: Al Viro <[email protected]>
Cc: Felipe Balbi <[email protected]>
Cc: Jason Wang <[email protected]>
Cc: "Michael S. Tsirkin" <[email protected]>
Cc: Zhenyu Wang <[email protected]>
Cc: Zhi Wang <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
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Patch series "improve use_mm / unuse_mm", v2.
This series improves the use_mm / unuse_mm interface by better documenting
the assumptions, and my taking the set_fs manipulations spread over the
callers into the core API.
This patch (of 3):
Use the proper API instead.
Link: http://lkml.kernel.org/r/[email protected]
These helpers are only for use with kernel threads, and I will tie them
more into the kthread infrastructure going forward. Also move the
prototypes to kthread.h - mmu_context.h was a little weird to start with
as it otherwise contains very low-level MM bits.
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Tested-by: Jens Axboe <[email protected]>
Reviewed-by: Jens Axboe <[email protected]>
Acked-by: Felix Kuehling <[email protected]>
Cc: Alex Deucher <[email protected]>
Cc: Al Viro <[email protected]>
Cc: Felipe Balbi <[email protected]>
Cc: Jason Wang <[email protected]>
Cc: "Michael S. Tsirkin" <[email protected]>
Cc: Zhenyu Wang <[email protected]>
Cc: Zhi Wang <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Link: http://lkml.kernel.org/r/[email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
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Modify the variable type of 'skip' member of struct stack_trace.
In theory, the 'skip' variable type should be unsigned int.
There are two reasons:
- The 'skip' only has two situation, 1)Positive value, 2)Zero
- The 'skip' of struct stack_trace has inconsistent type with struct
stack_trace_data, it makes a bit confusion in the relationship between
struct stack_trace and stack_trace_data.
Signed-off-by: Walter Wu <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Reviewed-by: Bart Van Assche <[email protected]>
Cc: Matthias Brugger <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Josh Poimboeuf <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
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While making other modifications it was easy to confuse the two struct
members node_zones and node_zonelists. For those already familiar with
the code, this might seem to be a silly patch, but it's quite helpful to
disambiguate the similar-sounding fields
While here, add a small comment on why nr_zones isn't simply MAX_NR_ZONES
Signed-off-by: Ben Widawsky <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Reviewed-by: Andrew Morton <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull sysctl fixes from Al Viro:
"Fixups to regressions in sysctl series"
* 'work.sysctl' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
sysctl: reject gigantic reads/write to sysctl files
cdrom: fix an incorrect __user annotation on cdrom_sysctl_info
trace: fix an incorrect __user annotation on stack_trace_sysctl
random: fix an incorrect __user annotation on proc_do_entropy
net/sysctl: remove leftover __user annotations on neigh_proc_dointvec*
net/sysctl: use cpumask_parse in flow_limit_cpu_sysctl
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc uaccess updates from Al Viro:
"Assorted uaccess patches for this cycle - the stuff that didn't fit
into thematic series"
* 'uaccess.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
bpf: make bpf_check_uarg_tail_zero() use check_zeroed_user()
x86: kvm_hv_set_msr(): use __put_user() instead of 32bit __clear_user()
user_regset_copyout_zero(): use clear_user()
TEST_ACCESS_OK _never_ had been checked anywhere
x86: switch cp_stat64() to unsafe_put_user()
binfmt_flat: don't use __put_user()
binfmt_elf_fdpic: don't use __... uaccess primitives
binfmt_elf: don't bother with __{put,copy_to}_user()
pselect6() and friends: take handling the combined 6th/7th args into helper
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git://git.kernel.org/pub/scm/linux/kernel/git/will/linux
Pull READ/WRITE_ONCE rework from Will Deacon:
"This the READ_ONCE rework I've been working on for a while, which
bumps the minimum GCC version and improves code-gen on arm64 when
stack protector is enabled"
[ Side note: I'm _really_ tempted to raise the minimum gcc version to
4.9, so that we can just say that we require _Generic() support.
That would allow us to more cleanly handle a lot of the cases where we
depend on very complex macros with 'sizeof' or __builtin_choose_expr()
with __builtin_types_compatible_p() etc.
This branch has a workaround for sparse not handling _Generic(),
either, but that was already fixed in the sparse development branch,
so it's really just gcc-4.9 that we'd require. - Linus ]
* 'rwonce/rework' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux:
compiler_types.h: Use unoptimized __unqual_scalar_typeof for sparse
compiler_types.h: Optimize __unqual_scalar_typeof compilation time
compiler.h: Enforce that READ_ONCE_NOCHECK() access size is sizeof(long)
compiler-types.h: Include naked type in __pick_integer_type() match
READ_ONCE: Fix comment describing 2x32-bit atomicity
gcov: Remove old GCC 3.4 support
arm64: barrier: Use '__unqual_scalar_typeof' for acquire/release macros
locking/barriers: Use '__unqual_scalar_typeof' for load-acquire macros
READ_ONCE: Drop pointer qualifiers when reading from scalar types
READ_ONCE: Enforce atomicity for {READ,WRITE}_ONCE() memory accesses
READ_ONCE: Simplify implementations of {READ,WRITE}_ONCE()
arm64: csum: Disable KASAN for do_csum()
fault_inject: Don't rely on "return value" from WRITE_ONCE()
net: tls: Avoid assigning 'const' pointer to non-const pointer
netfilter: Avoid assigning 'const' pointer to non-const pointer
compiler/gcc: Raise minimum GCC version for kernel builds to 4.8
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"Update the ACPICA code in the kernel to upstream revision 20200528
with the following changes:
- Remove some dead code from the acpidump utility (Bob Moore)
- Add new OperationRegion subtype keyword PlatformRtMechanism to the
compiler (Erik Kaneda)"
* tag 'acpi-5.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPICA: Update version to 20200528
ACPICA: iASL: add new OperationRegion subtype keyword PlatformRtMechanism
ACPICA: acpidump: Removed dead code from oslinuxtbl.c
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These are operating performance points (OPP) framework updates mostly,
including support for interconnect bandwidth in the OPP core, plus a
few cpufreq changes, including boost support in the CPPC cpufreq
driver, an ACPI device power management fix and a hibernation code
cleanup.
Specifics:
- Add support for interconnect bandwidth to the OPP core (Georgi
Djakov, Saravana Kannan, Sibi Sankar, Viresh Kumar).
- Add support for regulator enable/disable to the OPP core (Kamil
Konieczny).
- Add boost support to the CPPC cpufreq driver (Xiongfeng Wang).
- Make the tegra186 cpufreq driver set the
CPUFREQ_NEED_INITIAL_FREQ_CHECK flag (Mian Yousaf Kaukab).
- Prevent the ACPI power management from using power resources with
devices where the list of power resources for power state D0 (full
power) is missing (Rafael Wysocki).
- Annotate a hibernation-related function with __init (Christophe
JAILLET)"
* tag 'pm-5.8-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PM: Avoid using power resources if there are none for D0
cpufreq: CPPC: add SW BOOST support
cpufreq: change '.set_boost' to act on one policy
PM: hibernate: Add __init annotation to swsusp_header_init()
opp: Don't parse icc paths unnecessarily
opp: Remove bandwidth votes when target_freq is zero
opp: core: add regulators enable and disable
opp: Reorder the code for !target_freq case
opp: Expose bandwidth information via debugfs
cpufreq: dt: Add support for interconnect bandwidth scaling
opp: Update the bandwidth on OPP frequency changes
opp: Add sanity checks in _read_opp_key()
opp: Add support for parsing interconnect bandwidth
cpufreq: tegra186: add CPUFREQ_NEED_INITIAL_FREQ_CHECK flag
OPP: Add helpers for reading the binding properties
dt-bindings: opp: Introduce opp-peak-kBps and opp-avg-kBps bindings
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- a new driver for the Azoteq IQS269A capacitive touch controller
- a new driver for the Cypress CY8CTMA140 touchscreen
- updates to Elan and ft5x06 touchscreen drivers
- assorted driver fixes
- msm-vibrator has been removed as we have a more generic solution
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (28 commits)
Input: adi - work around module name confict
Input: iqs269a - add missing I2C dependency
Input: elants - refactor elants_i2c_execute_command()
Input: elants - override touchscreen info with DT properties
Input: elants - remove unused axes
Input: add support for Azoteq IQS269A
dt-bindings: input: Add bindings for Azoteq IQS269A
Input: imx_sc_key - use devm_add_action_or_reset() to handle all cleanups
Input: remove msm-vibrator driver
dt-bindings: Input: remove msm-vibrator
Input: elants_i2c - provide an attribute to show calibration count
Input: introduce input_mt_report_slot_inactive()
dt-bindings: input: touchscreen: elants_i2c: convert to YAML
Input: add driver for the Cypress CY8CTMA140 touchscreen
dt-bindings: touchscreen: Add CY8CTMA140 bindings
Input: edt-ft5x06 - prefer asynchronous probe
Input: edt-ft5x06 - improve power management operations
Input: edt-ft5x06 - move parameter restore into helper
Input: edt-ft5x06 - fix get_default register write access
Input: atkbd - receive and use physcode->keycode mapping from FW
...
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Pull virtio updates from Michael Tsirkin:
- virtio-mem: paravirtualized memory hotplug
- support doorbell mapping for vdpa
- config interrupt support in ifc
- fixes all over the place
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (40 commits)
vhost/test: fix up after API change
virtio_mem: convert device block size into 64bit
virtio-mem: drop unnecessary initialization
ifcvf: implement config interrupt in IFCVF
vhost: replace -1 with VHOST_FILE_UNBIND in ioctls
vhost_vdpa: Support config interrupt in vdpa
ifcvf: ignore continuous setting same status value
virtio-mem: Don't rely on implicit compiler padding for requests
virtio-mem: Try to unplug the complete online memory block first
virtio-mem: Use -ETXTBSY as error code if the device is busy
virtio-mem: Unplug subblocks right-to-left
virtio-mem: Drop manual check for already present memory
virtio-mem: Add parent resource for all added "System RAM"
virtio-mem: Better retry handling
virtio-mem: Offline and remove completely unplugged memory blocks
mm/memory_hotplug: Introduce offline_and_remove_memory()
virtio-mem: Allow to offline partially unplugged memory blocks
mm: Allow to offline unmovable PageOffline() pages via MEM_GOING_OFFLINE
virtio-mem: Paravirtualized memory hotunplug part 2
virtio-mem: Paravirtualized memory hotunplug part 1
...
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vxlan driver should be using helpers to access nexthop struct
internals. Remove open check if whether nexthop is multipath in
favor of the existing nexthop_is_multipath helper. Add a new
helper, nexthop_has_v4, to cover the need to check has_v4 in
a group.
Fixes: 1274e1cc4226 ("vxlan: ecmp support for mac fdb entries")
Cc: Roopa Prabhu <[email protected]>
Signed-off-by: David Ahern <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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fdb nexthops are marked with a flag. For standalone nexthops, a flag was
added to the nh_info struct. For groups that flag was added to struct
nexthop when it should have been added to the group information. Fix
by removing the flag from the nexthop struct and adding a flag to nh_group
that mirrors nh_info and is really only a caching of the individual types.
Add a helper, nexthop_is_fdb, for use by the vxlan code and fixup the
internal code to use the flag from either nh_info or nh_group.
v2
- propagate fdb_nh in remove_nh_grp_entry
Fixes: 38428d68719c ("nexthop: support for fdb ecmp nexthops")
Cc: Roopa Prabhu <[email protected]>
Signed-off-by: David Ahern <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD updates from Richard Weinberger:
"MTD core changes:
- partition parser: Support MTD names containing one or more colons.
- mtdblock: clear cache_state to avoid writing to bad blocks
repeatedly.
Raw NAND core changes:
- Stop using nand_release(), patched all drivers.
- Give more information about the ECC weakness when not matching the
chip's requirement.
- MAINTAINERS updates.
- Support emulated SLC mode on MLC NANDs.
- Support "constrained" controllers, adapt the core and ONFI/JEDEC
table parsing and Micron's code.
- Take check_only into account.
- Add an invalid ECC mode to discriminate with valid ones.
- Return an enum from of_get_nand_ecc_algo().
- Drop OOB_FIRST placement scheme.
- Introduce nand_extract_bits().
- Ensure a consistent bitflips numbering.
- BCH lib:
- Allow easy bit swapping.
- Rework a little bit the exported function names.
- Fix nand_gpio_waitrdy().
- Propage CS selection to sub operations.
- Add a NAND_NO_BBM_QUIRK flag.
- Give the possibility to verify a read operation is supported.
- Add a helper to check supported operations.
- Avoid indirect access to ->data_buf().
- Rename the use_bufpoi variables.
- Fix comments about the use of bufpoi.
- Rename a NAND chip option.
- Reorder the nand_chip->options flags.
- Translate obscure bitfields into readable macros.
- Timings:
- Fix default values.
- Add mode information to the timings structure.
Raw NAND controller driver changes:
- Fixed many error paths.
- Arasan
- New driver
- Au1550nd:
- Various cleanups
- Migration to ->exec_op()
- brcmnand:
- Misc cleanup.
- Support v2.1-v2.2 controllers.
- Remove unused including <linux/version.h>.
- Correctly verify erased pages.
- Fix Hamming OOB layout.
- Cadence
- Make cadence_nand_attach_chip static.
- Cafe:
- Set the NAND_NO_BBM_QUIRK flag
- cmx270:
- Remove this controller driver.
- cs553x:
- Misc cleanup
- Migration to ->exec_op()
- Davinci:
- Misc cleanup.
- Migration to ->exec_op()
- Denali:
- Add more delays before latching incoming data
- Diskonchip:
- Misc cleanup
- Migration to ->exec_op()
- Fsmc:
- Change to non-atomic bit operations.
- GPMI:
- Use nand_extract_bits()
- Fix runtime PM imbalance.
- Ingenic:
- Migration to exec_op()
- Fix the RB gpio active-high property on qi, lb60
- Make qi_lb60_ooblayout_ops static.
- Marvell:
- Misc cleanup and small fixes
- Nandsim:
- Fix the error paths, driver wide.
- Omap_elm:
- Fix runtime PM imbalance.
- STM32_FMC2:
- Misc cleanups (error cases, comments, timeout valus, cosmetic
changes).
SPI NOR core changes:
- Add, update support and fix few flashes.
- Prepare BFPT parsing for JESD216 rev D.
- Kernel doc fixes.
CFI changes:
- Support the absence of protection registers for Intel CFI flashes.
- Replace zero-length array with flexible-arrays"
* tag 'mtd/for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (208 commits)
mtd: clear cache_state to avoid writing to bad blocks repeatedly
mtd: parser: cmdline: Support MTD names containing one or more colons
mtd: physmap_of_gemini: remove defined but not used symbol 'syscon_match'
mtd: rawnand: Add an invalid ECC mode to discriminate with valid ones
mtd: rawnand: Return an enum from of_get_nand_ecc_algo()
mtd: rawnand: Drop OOB_FIRST placement scheme
mtd: rawnand: Avoid a typedef
mtd: Fix typo in mtd_ooblayout_set_databytes() description
mtd: rawnand: Stop using nand_release()
mtd: rawnand: nandsim: Reorganize ns_cleanup_module()
mtd: rawnand: nandsim: Rename a label in ns_init_module()
mtd: rawnand: nandsim: Manage lists on error in ns_init_module()
mtd: rawnand: nandsim: Fix the label pointing on nand_cleanup()
mtd: rawnand: nandsim: Free erase_block_wear on error
mtd: rawnand: nandsim: Use an additional label when freeing the nandsim object
mtd: rawnand: nandsim: Stop using nand_release()
mtd: rawnand: nandsim: Free the partition names in ns_free()
mtd: rawnand: nandsim: Free the allocated device on error in ns_init()
mtd: rawnand: nandsim: Free partition names on error in ns_init()
mtd: rawnand: nandsim: Fix the two ns_alloc_device() error paths
...
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This time around we have four lines of diff in the core framework,
removing a function that isn't used anymore. Otherwise the main new
thing for the common clk framework is that it is selectable in the
Kconfig language now. Hopefully this will let clk drivers and clk
consumers be testable on more than the architectures that support the
clk framework. The goal is to introduce some Kunit tests for the
framework.
Outside of the core framework we have the usual set of various driver
updates and non-critical fixes. The dirstat shows that the new
Baikal-T1 driver is the largest addition this time around in terms of
lines of code. After that the x86 (Intel), Qualcomm, and Mediatek
drivers introduce many lines to support new or upcoming SoCs. After
that the dirstat shows the usual suspects working on their SoC support
by fixing minor bugs, correcting data and converting some of their DT
bindings to YAML.
Core:
- Allow the COMMON_CLK config to be selectable
New Drivers:
- Clk driver for Baikal-T1 SoCs
- Mediatek MT6765 clock support
- Support for Intel Agilex clks
- Add support for X1830 and X1000 Ingenic SoC clk controllers
- Add support for the new Renesas RZ/G1H (R8A7742) SoC
- Add support for Qualcomm's MSM8939 Generic Clock Controller
Updates:
- Support IDT VersaClock 5P49V5925
- Bunch of updates for HSDK clock generation unit (CGU) driver
- Start making audio and GPU clks work on Marvell MMP2/MMP3 SoCs
- Add some GPU, NPU, and UFS clks to Qualcomm SM8150 driver
- Enable supply regulators for GPU gdscs on Qualcomm SoCs
- Add support for Si5342, Si5344 and Si5345 chips
- Support custom flags in Xilinx zynq firmware
- Various small fixes to the Xilinx clk driver
- A single minor rounding fix for the legacy Allwinner clock support
- A few patches from Abel Vesa as preparation of adding audiomix
clock support on i.MX
- A couple of cleanups from Anson Huang for i.MX clk-sscg-pll and
clk-pllv3 drivers
- Drop dependency on ARM64 for i.MX8M clock driver, to support
aarch32 mode on aarch64 hardware
- A series from Peng Fan to improve i.MX8M clock drivers, using
composite clock for core and bus clk slice
- Set a better parent clock for flexcan on i.MX6UL to support CiA102
defined bit rates
- A couple changes for EMC frequency scaling on Tegra210
- Support for CPU frequency scaling on Tegra20/Tegra30
- New clk gate for CSI test pattern generator on Tegra210
- Regression fixes for Samsung exynos542x and exynos5433 SoCs
- Use of fallthrough; attribute for Samsung s3c24xx
- Updates and fixup HDMI and video clocks on Meson8b
- Fixup reset polarity on Meson8b
- Fix GPU glitch free mux switch on Meson gx and g12
- A minor fix for the currently unused suspend/resume handling on
Renesas RZ/A1 and RZ/A2
- Two more conversions of Renesas DT bindings to json-schema
- Add support for the USB 2.0 clock selector on Renesas R-Car M3-W+"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (155 commits)
clk: mediatek: Remove ifr{0,1}_cfg_regs structures
clk: baikal-t1: remove redundant assignment to variable 'divider'
clk: baikal-t1: fix spelling mistake "Uncompatible" -> "Incompatible"
dt-bindings: clock: Add a missing include to MMP Audio Clock binding
dt: Add bindings for IDT VersaClock 5P49V5925
clk: vc5: Add support for IDT VersaClock 5P49V6965
clk: Add Baikal-T1 CCU Dividers driver
clk: Add Baikal-T1 CCU PLLs driver
dt-bindings: clk: Add Baikal-T1 CCU Dividers binding
dt-bindings: clk: Add Baikal-T1 CCU PLLs binding
clk: mediatek: assign the initial value to clk_init_data of mtk_mux
clk: mediatek: Add MT6765 clock support
clk: mediatek: add mt6765 clock IDs
dt-bindings: clock: mediatek: document clk bindings vcodecsys for Mediatek MT6765 SoC
dt-bindings: clock: mediatek: document clk bindings mipi0a for Mediatek MT6765 SoC
dt-bindings: clock: mediatek: document clk bindings for Mediatek MT6765 SoC
CLK: HSDK: CGU: add support for 148.5MHz clock
CLK: HSDK: CGU: support PLL bypassing
CLK: HSDK: CGU: check if PLL is bypassed first
clk: clk-si5341: Add support for the Si5345 series
...
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
"This time there are lots of changes. Quite a few changes to the core,
lots of driver changes and one change to kobject core (with Ack from
Greg).
Summary:
kobject:
- Increase number of allowed uevent variables
power-supply core:
- Add power-supply type in uevent
- Cleanup property handling in core
- Make property and usb_type pointers const
- Convert core power-supply DT binding to YAML
- Cleanup HWMON code
- Add new health status "calibration required"
- Add new properties for manufacture date and capacity error margin
battery drivers:
- new cw2015 battery driver used by pine64 Pinebook Pro laptop
- axp22: blacklist on Meegopad T02
- sc27xx: support current/voltage reading
- max17042: support time-to-empty reading
- simple-battery: add more battery parameters
- bq27xxx: convert DT binding document to YAML
- sbs-battery: add TI BQ20Z65 support, fix technology property,
convert DT binding to YAML, add option to disable charger
broadcasts, add new properties: manufacture date, capacity
error margin, average current, charge current and voltage and
support calibration required health status
- misc fixes
charger drivers:
- bq25890: cleanup, implement charge type, precharge current and
input current limiting properties
- bd70528: use new linear range helper library
- bd99954: new charger driver
- mp2629: new charger driver
- misc fixes
reboot drivers:
- oxnas-restart: introduce new driver
- syscon-reboot: convert DT binding to YAML, add parent syscon device
support
- misc fixes"
* tag 'for-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (85 commits)
power: supply: cw2015: Attach OF ID table to the driver
power: reset: gpio-poweroff: add missing '\n' in dev_err()
Revert "power: supply: sbs-battery: simplify read_read_string_data"
Revert "power: supply: sbs-battery: add PEC support"
dt-bindings: power: sbs-battery: Convert to yaml
power: supply: sbs-battery: constify power-supply property array
power: supply: sbs-battery: switch to i2c's probe_new
power: supply: sbs-battery: switch from of_property_* to device_property_*
power: supply: sbs-battery: add ability to disable charger broadcasts
power: supply: sbs-battery: fix idle battery status
power: supply: sbs-battery: add POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED support
power: supply: sbs-battery: add MANUFACTURE_DATE support
power: supply: sbs-battery: add POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT/VOLTAGE_MAX support
power: supply: sbs-battery: Improve POWER_SUPPLY_PROP_TECHNOLOGY support
power: supply: sbs-battery: add POWER_SUPPLY_PROP_CURRENT_AVG support
power: supply: sbs-battery: add PEC support
power: supply: sbs-battery: simplify read_read_string_data
power: supply: sbs-battery: add POWER_SUPPLY_PROP_CAPACITY_ERROR_MARGIN support
power: supply: sbs-battery: Add TI BQ20Z65 support
power: supply: core: add POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED
...
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* acpica:
ACPICA: Update version to 20200528
ACPICA: iASL: add new OperationRegion subtype keyword PlatformRtMechanism
ACPICA: acpidump: Removed dead code from oslinuxtbl.c
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* pm-cpufreq:
cpufreq: CPPC: add SW BOOST support
cpufreq: change '.set_boost' to act on one policy
cpufreq: tegra186: add CPUFREQ_NEED_INITIAL_FREQ_CHECK flag
* pm-acpi:
ACPI: PM: Avoid using power resources if there are none for D0
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* pm-opp:
opp: Don't parse icc paths unnecessarily
opp: Remove bandwidth votes when target_freq is zero
opp: core: add regulators enable and disable
opp: Reorder the code for !target_freq case
opp: Expose bandwidth information via debugfs
cpufreq: dt: Add support for interconnect bandwidth scaling
opp: Update the bandwidth on OPP frequency changes
opp: Add sanity checks in _read_opp_key()
opp: Add support for parsing interconnect bandwidth
interconnect: Remove unused module exit code from core
interconnect: Disallow interconnect core to be built as a module
interconnect: Add of_icc_get_by_index() helper function
OPP: Add helpers for reading the binding properties
dt-bindings: opp: Introduce opp-peak-kBps and opp-avg-kBps bindings
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The RISC-V per-HART local interrupt controller manages software
interrupts, timer interrupts, external interrupts (which are routed
via the platform level interrupt controller) and other per-HART
local interrupts.
We add a driver for the RISC-V local interrupt controller, which
eventually replaces the RISC-V architecture code, allowing for a
better split between arch code and drivers.
The driver is compliant with RISC-V Hart-Level Interrupt Controller
DT bindings located at:
Documentation/devicetree/bindings/interrupt-controller/riscv,cpu-intc.txt
Co-developed-by: Palmer Dabbelt <[email protected]>
Signed-off-by: Anup Patel <[email protected]>
[Palmer: Cleaned up warnings]
Signed-off-by: Palmer Dabbelt <[email protected]>
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This commit also removes the unused argument, cdb, that was passed to this
function.
Link: https://lore.kernel.org/r/1591559913-8388-5-git-send-email-sudhakar.panneerselvam@oracle.com
Reviewed-by: Mike Christie <[email protected]>
Signed-off-by: Sudhakar Panneerselvam <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
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