- Log faulting code locations when verifiers fail, for improved diagnosis
of corrupt filesystems.
- Implement metadata verifiers for local format inode fork data.
- Online scrub now cross-references metadata records with other metadata.
- Refactor the fs geometry ioctl generation functions.
- Harden various metadata verifiers.
- Fix various accounting problems.
- Fix uncancelled transactions leaking when xattr functions fail.
- Prevent the copy-on-write speculative preallocation garbage collector
from racing with writeback.
- Emit log reservation type information as trace data so that we can
compare against xfsprogs.
- Fix some erroneous asserts in the online scrub code.
- Clean up the transaction reservation calculations.
- Fix various minor bugs in online scrub.
- Log complaints about mixed dio/buffered writes once per day and less
noisily than before.
- Refactor buffer log item lists to use list_head.
- Break PNFS leases before reflinking blocks.
- Reduce lock contention on reflink source files.
- Fix some quota accounting problems with reflink.
- Fix a serious corruption problem in the direct cow write code where we
fed bad iomaps to the vfs iomap consumers.
- Various other refactorings.
- Remove EXPERIMENTAL tag from reflink!
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Merge tag 'xfs-4.16-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs updates from Darrick Wong:
"This merge cycle, we're again some substantive changes to XFS.
Metadata verifiers have been restructured to provide more detail about
which part of a metadata structure failed checks, and we've enhanced
the new online fsck feature to cross-reference extent allocation
information with the other metadata structures. With this pull, the
metadata verification part of online fsck is more or less finished,
though the feature is still experimental and still disabled by
default.
We're also preparing to remove the EXPERIMENTAL tag from a couple of
features this cycle. This week we're committing a bunch of space
accounting fixes for reflink and removing the EXPERIMENTAL tag from
reflink; I anticipate that we'll be ready to do the same for the
reverse mapping feature next week. (I don't have any pending fixes for
rmap; however I wish to remove the tags one at a time.)
This giant pile of patches has been run through a full xfstests run
over the weekend and through a quick xfstests run against this
morning's master, with no major failures reported. Let me know if
there's any merge problems -- git merge reported that one of our
patches touched the same function as the i_version series, but it
resolved things cleanly.
Summary:
- Log faulting code locations when verifiers fail, for improved
diagnosis of corrupt filesystems.
- Implement metadata verifiers for local format inode fork data.
- Online scrub now cross-references metadata records with other
metadata.
- Refactor the fs geometry ioctl generation functions.
- Harden various metadata verifiers.
- Fix various accounting problems.
- Fix uncancelled transactions leaking when xattr functions fail.
- Prevent the copy-on-write speculative preallocation garbage
collector from racing with writeback.
- Emit log reservation type information as trace data so that we can
compare against xfsprogs.
- Fix some erroneous asserts in the online scrub code.
- Clean up the transaction reservation calculations.
- Fix various minor bugs in online scrub.
- Log complaints about mixed dio/buffered writes once per day and
less noisily than before.
- Refactor buffer log item lists to use list_head.
- Break PNFS leases before reflinking blocks.
- Reduce lock contention on reflink source files.
- Fix some quota accounting problems with reflink.
- Fix a serious corruption problem in the direct cow write code where
we fed bad iomaps to the vfs iomap consumers.
- Various other refactorings.
- Remove EXPERIMENTAL tag from reflink!"
* tag 'xfs-4.16-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (94 commits)
xfs: remove experimental tag for reflinks
xfs: don't screw up direct writes when freesp is fragmented
xfs: check reflink allocation mappings
iomap: warn on zero-length mappings
xfs: treat CoW fork operations as delalloc for quota accounting
xfs: only grab shared inode locks for source file during reflink
xfs: allow xfs_lock_two_inodes to take different EXCL/SHARED modes
xfs: reflink should break pnfs leases before sharing blocks
xfs: don't clobber inobt/finobt cursors when xref with rmap
xfs: skip CoW writes past EOF when writeback races with truncate
xfs: preserve i_rdev when recycling a reclaimable inode
xfs: refactor accounting updates out of xfs_bmap_btalloc
xfs: refactor inode verifier corruption error printing
xfs: make tracepoint inode number format consistent
xfs: always zero di_flags2 when we free the inode
xfs: call xfs_qm_dqattach before performing reflink operations
xfs: bmap code cleanup
Use list_head infra-structure for buffer's log items list
Split buffer's b_fspriv field
Get rid of xfs_buf_log_item_t typedef
...
Pull get_user_pages_fast updates from Al Viro:
"A bit more get_user_pages work"
* 'work.get_user_pages_fast' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
kvm: switch get_user_page_nowait() to get_user_pages_unlocked()
__get_user_pages_locked(): get rid of notify_drop argument
get_user_pages_unlocked(): pass true to __get_user_pages_locked() notify_drop
cris: switch to get_user_pages_fast()
fold __get_user_pages_unlocked() into its sole remaining caller
Pull misc vfs updates from Al Viro:
"All kinds of misc stuff, without any unifying topic, from various
people.
Neil's d_anon patch, several bugfixes, introduction of kvmalloc
analogue of kmemdup_user(), extending bitfield.h to deal with
fixed-endians, assorted cleanups all over the place..."
* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (28 commits)
alpha: osf_sys.c: use timespec64 where appropriate
alpha: osf_sys.c: fix put_tv32 regression
jffs2: Fix use-after-free bug in jffs2_iget()'s error handling path
dcache: delete unused d_hash_mask
dcache: subtract d_hash_shift from 32 in advance
fs/buffer.c: fold init_buffer() into init_page_buffers()
fs: fold __inode_permission() into inode_permission()
fs: add RWF_APPEND
sctp: use vmemdup_user() rather than badly open-coding memdup_user()
snd_ctl_elem_init_enum_names(): switch to vmemdup_user()
replace_user_tlv(): switch to vmemdup_user()
new primitive: vmemdup_user()
memdup_user(): switch to GFP_USER
eventfd: fold eventfd_ctx_get() into eventfd_ctx_fileget()
eventfd: fold eventfd_ctx_read() into eventfd_read()
eventfd: convert to use anon_inode_getfd()
nfs4file: get rid of pointless include of btrfs.h
uvc_v4l2: clean copyin/copyout up
vme_user: don't use __copy_..._user()
usx2y: don't bother with memdup_user() for 16-byte structure
...
five categories: (1) code cleanups, (2) patches related to adding
PUNCH_HOLE support to GFS2, (3) support for new fields in resource group
headers, (4) a few bug fixes, and (5) support for new fields in journal
log headers. These new fields, which were previously unused, are designed
to make it easier to track down file system corruption, and allow fsck.gfs2
to make more intelligent decisions when finding and fixing file system
corruption.
1. Abhi Das contributed a patch to trim the ordered writes list, which
used to grow uncontrollably until unmount.
2. Abhi also added a second patch to trim the ordered writes list.
3. Andreas Gruenbacher removed an unused parameter from function
gfs2_write_jdata_pagevec.
4. Andreas also removed a pointless BUG_ON.
5. Andreas cleaned up an error patch in trunc_start.
6. Andreas removed some unused parameters from truncate.
7. Andreas made gfs2_journaled_truncate more efficient.
8. Andreas cleaned up the support functions for truncate.
9. Andreas fixed metadata read-ahead for truncate to make it faster.
10. Andreas fixed up the non-recursive truncate code.
11. Andreas reworked and renamed function gfs2_block_truncate_page.
12. Andreas generalized the non-recursive truncate code so it can
take a range of values for punch_hole support.
13. Andreas introduced new PUNCH_HOLE support that take advantage
of the previous patches.
14. Andreas contributed a patch to add fallocate with PUNCH_HOLE.
15. Andreas fixed some typos in the comments.
16. Andreas added function gfs2_max_stuffed_size to replace a piece
of code that was needlessly repeated throughout GFS2.
17. Andreas made a minor cleanup to function gfs2_page_add_databufs.
18. Andreas got rid of function gfs2_log_header_in in preparation for
the new log header fields.
19. Andreas also fixed up some missing newlines in kernel messages.
20. Andy Price added a new field to resource groups to indicate where
the next one should be, to allow fsck.gfs2 to make better repairs.
21. Andy also added new rindex fields for consistency checking.
22. Andy added a crc field to resource group headers for consistency
checking.
23. I added a patch to reduce redundancy in functions common to
freeing dinodes.
24. I added a patch to reduce redundancy when writing log headers
between the journalling code and journal recovery code.
25. I added a patch to add new fields to journal log headers based
on a prototype from Steve Whitehouse.
26. I added a patch to log the source of journal log headers so we
can better track down journal corruption.
27. I added a patch to fix a minor comment typo.
28. I also added a patch to fix a BUG in an unlink error path.
29. Steve Whitehouse contributed a patch to fix an incorrect use
of the gfs2_blk2rgrpd function.
30. Tetsuo Handa contributed a patch that fixes incorrect error
handling in function init_gfs2_fs.
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Merge tag 'gfs2-4.16.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull GFS2 updates from Bob Peterson:
"We've got 30 patches for this merge window. These generally fall into
five categories:
- code cleanups
- patches related to adding PUNCH_HOLE support to GFS2
- support for new fields in resource group headers
- a few bug fixes
- support for new fields in journal log headers. These new fields,
which were previously unused, are designed to make it easier to
track down file system corruption, and allow fsck.gfs2 to make more
intelligent decisions when finding and fixing file system
corruption.
Details:
- Two patches from Abhi Das, to trim the ordered writes list, which
used to grow uncontrollably until unmount.
- Several patches from Andreas Gruenbacher: remove an unused
parameter from function gfs2_write_jdata_pagevec, remove a
pointless BUG_ON, clean up an error patch in trunc_start, remove
some unused parameters from truncate, make gfs2_journaled_truncate
more efficient, clean up the support functions for truncate, fix
metadata read-ahead for truncate to make it faster, fix up the
non-recursive truncate code, rework and rename
gfs2_block_truncate_page, generalize the non-recursive truncate
code so it can take a range of values for punch_hole support,
introduce new PUNCH_HOLE support that take advantage of the
previous patches, add fallocate support with PUNCH_HOLE, fix some
typos in the comments, add the function gfs2_max_stuffed_size to
replace a piece of code that was needlessly repeated throughout
GFS2, a minor cleanup to function gfs2_page_add_databufs, get rid
of function gfs2_log_header_in in preparation for the new log
header fields, and also fix up some missing newlines in kernel
messages.
- Andy Price added a new field to resource groups to indicate where
the next one should be, to allow fsck.gfs2 to make better repairs.
He also added new rindex fields for consistency checking, and added
a crc field to resource group headers for consistency checking.
- I reduced redundancy in functions common to freeing dinodes, and
when writing log headers between the journalling code and journal
recovery code. Also added new fields to journal log headers based
on a prototype from Steve Whitehouse, and log the source of journal
log headers so we can better track down journal corruption. Minor
comment typo fix and a fix for a BUG in an unlink error path.
- Steve Whitehouse contributed a patch to fix an incorrect use of the
gfs2_blk2rgrpd function.
- Tetsuo Handa contributed a patch that fixes incorrect error
handling in function init_gfs2_fs"
* tag 'gfs2-4.16.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (30 commits)
gfs2: Add a few missing newlines in messages
gfs2: Remove inode from ordered write list in gfs2_write_inode()
GFS2: Don't try to end a non-existent transaction in unlink
GFS2: Fix minor comment typo
GFS2: Log the reason for log flushes in every log header
GFS2: Introduce new gfs2_log_header_v2
gfs2: Get rid of gfs2_log_header_in
gfs2: Minor gfs2_page_add_databufs cleanup
gfs2: Add gfs2_max_stuffed_size
gfs2: Typo fixes
gfs2: Implement fallocate(FALLOC_FL_PUNCH_HOLE)
gfs2: Turn trunc_dealloc into punch_hole
gfs2: Generalize truncate code
Turn gfs2_block_truncate_page into gfs2_block_zero_range
gfs2: Improve non-recursive delete algorithm
gfs2: Fix metadata read-ahead during truncate
gfs2: Clean up {lookup,fillup}_metapath
gfs2: Remove minor gfs2_journaled_truncate inefficiencies
gfs2: truncate: Remove unnecessary oldsize parameters
gfs2: Clean up trunc_start error path
...
As Linus points out:
The inode_cmp_iversion{+raw}() functions are pure and utter crap.
Why?
You say that they return 0/negative/positive, but they do so in a
completely broken manner. They return that ternary value as the
sequence number difference in a 's64', which means that if you
actually care about that ternary value, and do the *sane* thing that
the kernel-doc of the function implies is the right thing, you would
do
int cmp = inode_cmp_iversion(inode, old);
if (cmp < 0 ...
and as a result you get code that looks sane, but that doesn't
actually *WORK* right.
Since none of the callers actually care about the ternary value here,
convert the inode_cmp_iversion{+raw} functions to just return a boolean
value (false for matching, true for non-matching).
This matches the existing use of these functions just fine, and makes it
simple to convert them to return a ternary value in the future if we
grow callers that need it.
With this change we can also reimplement inode_cmp_iversion in a simpler
way using inode_peek_iversion.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In this round, we've followed up to support some generic features such as
cgroup, block reservation, linking fscrypt_ops, delivering write_hints,
and some ioctls. And, we could fix some corner cases in terms of power-cut
recovery and subtle deadlocks.
Enhancement:
- bitmap operations to handle NAT blocks
- readahead to improve readdir speed
- switch to use fscrypt_*
- apply write hints for direct IO
- add reserve_root=%u,resuid=%u,resgid=%u to reserve blocks for root/uid/gid
- modify b_avail and b_free to consider root reserved blocks
- support cgroup writeback
- support FIEMAP_FLAG_XATTR for fibmap
- add F2FS_IOC_PRECACHE_EXTENTS to pre-cache extents
- add F2FS_IOC_{GET/SET}_PIN_FILE to pin LBAs for data blocks
- support inode creation time
Bug fix:
- sysfile-based quota operations
- memory footprint accounting
- allow to write data on partial preallocation case
- fix deadlock case on fallocate
- fix to handle fill_super errors
- fix missing inode updates of fsync'ed file
- recover renamed file which was fsycn'ed before
- drop inmemory pages in corner error case
- keep last_disk_size correctly
- recover missing i_inline flags during roll-forward
Various clean-up patches were added as well.
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Merge tag 'f2fs-for-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"In this round, we've followed up to support some generic features such
as cgroup, block reservation, linking fscrypt_ops, delivering
write_hints, and some ioctls. And, we could fix some corner cases in
terms of power-cut recovery and subtle deadlocks.
Enhancements:
- bitmap operations to handle NAT blocks
- readahead to improve readdir speed
- switch to use fscrypt_*
- apply write hints for direct IO
- add reserve_root=%u,resuid=%u,resgid=%u to reserve blocks for root/uid/gid
- modify b_avail and b_free to consider root reserved blocks
- support cgroup writeback
- support FIEMAP_FLAG_XATTR for fibmap
- add F2FS_IOC_PRECACHE_EXTENTS to pre-cache extents
- add F2FS_IOC_{GET/SET}_PIN_FILE to pin LBAs for data blocks
- support inode creation time
Bug fixs:
- sysfile-based quota operations
- memory footprint accounting
- allow to write data on partial preallocation case
- fix deadlock case on fallocate
- fix to handle fill_super errors
- fix missing inode updates of fsync'ed file
- recover renamed file which was fsycn'ed before
- drop inmemory pages in corner error case
- keep last_disk_size correctly
- recover missing i_inline flags during roll-forward
Various clean-up patches were added as well"
* tag 'f2fs-for-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (72 commits)
f2fs: support inode creation time
f2fs: rebuild sit page from sit info in mem
f2fs: stop issuing discard if fs is readonly
f2fs: clean up duplicated assignment in init_discard_policy
f2fs: use GFP_F2FS_ZERO for cleanup
f2fs: allow to recover node blocks given updated checkpoint
f2fs: recover some i_inline flags
f2fs: correct removexattr behavior for null valued extended attribute
f2fs: drop page cache after fs shutdown
f2fs: stop gc/discard thread after fs shutdown
f2fs: hanlde error case in f2fs_ioc_shutdown
f2fs: split need_inplace_update
f2fs: fix to update last_disk_size correctly
f2fs: kill F2FS_INLINE_XATTR_ADDRS for cleanup
f2fs: clean up error path of fill_super
f2fs: avoid hungtask when GC encrypted block if io_bits is set
f2fs: allow quota to use reserved blocks
f2fs: fix to drop all inmem pages correctly
f2fs: speed up defragment on sparse file
f2fs: support F2FS_IOC_PRECACHE_EXTENTS
...
Highlights include:
Stable bugfixes:
- Fix breakages in the nfsstat utility due to the inclusion of the NFSv4
LOOKUPP operation.
- Fix a NULL pointer dereference in nfs_idmap_prepare_pipe_upcall() due to
nfs_idmap_legacy_upcall() being called without an 'aux' parameter.
- Fix a refcount leak in the standard O_DIRECT error path.
- Fix a refcount leak in the pNFS O_DIRECT fallback to MDS path.
- Fix CPU latency issues with nfs_commit_release_pages()
- Fix the LAYOUTUNAVAILABLE error case in the file layout type.
- NFS: Fix a race between mmap() and O_DIRECT
Features:
- Support the statx() mask and query flags to enable optimisations when
the user is requesting only attributes that are already up to date in
the inode cache, or is specifying the AT_STATX_DONT_SYNC flag.
- Add a module alias for the SCSI pNFS layout type.
Bugfixes:
- Automounting when resolving a NFSv4 referral should preserve the RDMA
transport protocol settings.
- Various other RDMA bugfixes from Chuck.
- pNFS block layout fixes.
- Always set NFS_LOCK_LOST when a lock is lost.
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Merge tag 'nfs-for-4.16-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust:
"Highlights include:
Stable bugfixes:
- Fix breakages in the nfsstat utility due to the inclusion of the
NFSv4 LOOKUPP operation
- Fix a NULL pointer dereference in nfs_idmap_prepare_pipe_upcall()
due to nfs_idmap_legacy_upcall() being called without an 'aux'
parameter
- Fix a refcount leak in the standard O_DIRECT error path
- Fix a refcount leak in the pNFS O_DIRECT fallback to MDS path
- Fix CPU latency issues with nfs_commit_release_pages()
- Fix the LAYOUTUNAVAILABLE error case in the file layout type
- NFS: Fix a race between mmap() and O_DIRECT
Features:
- Support the statx() mask and query flags to enable optimisations
when the user is requesting only attributes that are already up to
date in the inode cache, or is specifying the AT_STATX_DONT_SYNC
flag
- Add a module alias for the SCSI pNFS layout type
Bugfixes:
- Automounting when resolving a NFSv4 referral should preserve the
RDMA transport protocol settings
- Various other RDMA bugfixes from Chuck
- pNFS block layout fixes
- Always set NFS_LOCK_LOST when a lock is lost"
* tag 'nfs-for-4.16-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (69 commits)
NFS: Fix a race between mmap() and O_DIRECT
NFS: Remove a redundant call to unmap_mapping_range()
pnfs/blocklayout: Ensure disk address in block device map
pnfs/blocklayout: pnfs_block_dev_map uses bytes, not sectors
lockd: Fix server refcounting
SUNRPC: Fix null rpc_clnt dereference in rpc_task_queued tracepoint
SUNRPC: Micro-optimize __rpc_execute
SUNRPC: task_run_action should display tk_callback
sunrpc: Format RPC events consistently for display
SUNRPC: Trace xprt_timer events
xprtrdma: Correct some documenting comments
xprtrdma: Fix "bytes registered" accounting
xprtrdma: Instrument allocation/release of rpcrdma_req/rep objects
xprtrdma: Add trace points to instrument QP and CQ access upcalls
xprtrdma: Add trace points in the client-side backchannel code paths
xprtrdma: Add trace points for connect events
xprtrdma: Add trace points to instrument MR allocation and recovery
xprtrdma: Add trace points to instrument memory invalidation
xprtrdma: Add trace points in reply decoder path
xprtrdma: Add trace points to instrument memory registration
..
Pull kern_recvmsg reduction from Al Viro:
"kernel_recvmsg() is a set_fs()-using wrapper for sock_recvmsg(). In
all but one case that is not needed - use of ITER_KVEC for ->msg_iter
takes care of the data and does not care about set_fs(). The only
exception is svc_udp_recvfrom() where we want cmsg to be store into
kernel object; everything else can just use sock_recvmsg() and be done
with that.
A followup converting svc_udp_recvfrom() away from set_fs() (and
killing kernel_recvmsg() off) is *NOT* in here - I'd like to hear what
netdev folks think of the approach proposed in that followup)"
* 'work.sock_recvmsg' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
tipc: switch to sock_recvmsg()
smc: switch to sock_recvmsg()
ipvs: switch to sock_recvmsg()
mISDN: switch to sock_recvmsg()
drbd: switch to sock_recvmsg()
lustre lnet_sock_read(): switch to sock_recvmsg()
cfs2: switch to sock_recvmsg()
ncpfs: switch to sock_recvmsg()
dlm: switch to sock_recvmsg()
svc_recvfrom(): switch to sock_recvmsg()
Pull mqueue/bpf vfs cleanups from Al Viro:
"mqueue and bpf go through rather painful and similar contortions to
create objects in their dentry trees. Provide a primitive for doing
that without abusing ->mknod(), switch bpf and mqueue to it.
Another mqueue-related thing that has ended up in that branch is
on-demand creation of internal mount (based upon the work of Giuseppe
Scrivano)"
* 'work.mqueue' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
mqueue: switch to on-demand creation of internal mount
tidy do_mq_open() up a bit
mqueue: clean prepare_open() up
do_mq_open(): move all work prior to dentry_open() into a helper
mqueue: fold mq_attr_ok() into mqueue_get_inode()
move dentry_open() calls up into do_mq_open()
mqueue: switch to vfs_mkobj(), quit abusing ->d_fsdata
bpf_obj_do_pin(): switch to vfs_mkobj(), quit abusing ->mknod()
new primitive: vfs_mkobj()
Pull poll annotations from Al Viro:
"This introduces a __bitwise type for POLL### bitmap, and propagates
the annotations through the tree. Most of that stuff is as simple as
'make ->poll() instances return __poll_t and do the same to local
variables used to hold the future return value'.
Some of the obvious brainos found in process are fixed (e.g. POLLIN
misspelled as POLL_IN). At that point the amount of sparse warnings is
low and most of them are for genuine bugs - e.g. ->poll() instance
deciding to return -EINVAL instead of a bitmap. I hadn't touched those
in this series - it's large enough as it is.
Another problem it has caught was eventpoll() ABI mess; select.c and
eventpoll.c assumed that corresponding POLL### and EPOLL### were
equal. That's true for some, but not all of them - EPOLL### are
arch-independent, but POLL### are not.
The last commit in this series separates userland POLL### values from
the (now arch-independent) kernel-side ones, converting between them
in the few places where they are copied to/from userland. AFAICS, this
is the least disruptive fix preserving poll(2) ABI and making epoll()
work on all architectures.
As it is, it's simply broken on sparc - try to give it EPOLLWRNORM and
it will trigger only on what would've triggered EPOLLWRBAND on other
architectures. EPOLLWRBAND and EPOLLRDHUP, OTOH, are never triggered
at all on sparc. With this patch they should work consistently on all
architectures"
* 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits)
make kernel-side POLL... arch-independent
eventpoll: no need to mask the result of epi_item_poll() again
eventpoll: constify struct epoll_event pointers
debugging printk in sg_poll() uses %x to print POLL... bitmap
annotate poll(2) guts
9p: untangle ->poll() mess
->si_band gets POLL... bitmap stored into a user-visible long field
ring_buffer_poll_wait() return value used as return value of ->poll()
the rest of drivers/*: annotate ->poll() instances
media: annotate ->poll() instances
fs: annotate ->poll() instances
ipc, kernel, mm: annotate ->poll() instances
net: annotate ->poll() instances
apparmor: annotate ->poll() instances
tomoyo: annotate ->poll() instances
sound: annotate ->poll() instances
acpi: annotate ->poll() instances
crypto: annotate ->poll() instances
block: annotate ->poll() instances
x86: annotate ->poll() instances
...
Pull cgroup updates from Tejun Heo:
"Nothing too interesting. Documentation updates and trivial changes;
however, this pull request does containt he previusly discussed
dropping of __must_check from strscpy()"
* 'for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
Documentation: Fix 'file_mapped' -> 'mapped_file'
string: drop __must_check from strscpy() and restore strscpy() usages in cgroup
cgroup, docs: document the root cgroup behavior of cpu and io controllers
cgroup-v2.txt: fix typos
cgroup: Update documentation reference
Documentation/cgroup-v1: fix outdated programming details
cgroup, docs: document cgroup v2 device controller
Pull percpu update from Tejun Heo:
"One trivial patch to convert the return type from int to bool"
* 'for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu: percpu_counter_initialized can be boolean
Pull libata updates from Tejun Heo:
"Nothing too interesting. Several patches to convert mdelay() to
usleep_range(), removal of unused pata_at32, and other low level
driver specific changes"
* 'for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ata: pata_pdc2027x: Replace mdelay with msleep
ata: pata_it821x: Replace mdelay with usleep_range in it821x_firmware_command
ata: sata_mv: Replace mdelay with usleep_range in mv_reset_channel
ata: remove pata_at32
phy: brcm-sata: remove unused variable
phy: brcm-sata: fix semicolon.cocci warnings
ata: ahci_brcm: Recover from failures to identify devices
phy: brcm-sata: Implement calibrate callback
ahci: Add Intel Cannon Lake PCH-H PCI ID
ata_piix: constify pci_bits
libata:pata_atiixp: Don't use unconnected secondary port on SB600
ata: ahci_brcm: Avoid clobbering SATA_TOP_CTRL_BUS_CTRL
ahci: Allow setting a default LPM policy for mobile chipsets
ahci: Add PCI ids for Intel Bay Trail, Cherry Trail and Apollo Lake AHCI
ahci: Annotate PCI ids for mobile Intel chipsets as such
Pull workqueue updates from Tejun Heo:
"Workqueue has an early init trick where workqueues can be created and
work items queued on them before the workqueue subsystem is online.
This helps simplifying early init and operation of low level
subsystems which use workqueues for managerial things which aren't
depended upon early during boot.
Out of laziness, the early init didn't cover workqueues with
WQ_MEM_RECLAIM, which is inconsistent and confusing because adding the
flag simply makes the system fail to boot. Cover WQ_MEM_RECLAIM too.
This was originally brought up for RCU but RCU didn't actually need
this. I still think it's a good idea to cover it"
* 'for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: allow WQ_MEM_RECLAIM on early init workqueues
workqueue: separate out init_rescuer()
Pull userns updates from Eric Biederman:
"Between the holidays and other distractions only a small amount of
namespace work made it into my tree this time.
Just a final cleanup from a revert several kernels ago and a small
typo fix from Wolffhardt Schwabe"
* 'userns-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
fix typo in assignment of fs default overflow gid
autofs4: Modify autofs_wait to use current_uid() and current_gid()
userns: Don't fail follow_automount based on s_user_ns
Pull siginfo cleanups from Eric Biederman:
"Long ago when 2.4 was just a testing release copy_siginfo_to_user was
made to copy individual fields to userspace, possibly for efficiency
and to ensure initialized values were not copied to userspace.
Unfortunately the design was complex, it's assumptions unstated, and
humans are fallible and so while it worked much of the time that
design failed to ensure unitialized memory is not copied to userspace.
This set of changes is part of a new design to clean up siginfo and
simplify things, and hopefully make the siginfo handling robust enough
that a simple inspection of the code can be made to ensure we don't
copy any unitializied fields to userspace.
The design is to unify struct siginfo and struct compat_siginfo into a
single definition that is shared between all architectures so that
anyone adding to the set of information shared with struct siginfo can
see the whole picture. Hopefully ensuring all future si_code
assignments are arch independent.
The design is to unify copy_siginfo_to_user32 and
copy_siginfo_from_user32 so that those function are complete and cope
with all of the different cases documented in signinfo_layout. I don't
think there was a single implementation of either of those functions
that was complete and correct before my changes unified them.
The design is to introduce a series of helpers including
force_siginfo_fault that take the values that are needed in struct
siginfo and build the siginfo structure for their callers. Ensuring
struct siginfo is built correctly.
The remaining work for 4.17 (unless someone thinks it is post -rc1
material) is to push usage of those helpers down into the
architectures so that architecture specific code will not need to deal
with the fiddly work of intializing struct siginfo, and then when
struct siginfo is guaranteed to be fully initialized change copy
siginfo_to_user into a simple wrapper around copy_to_user.
Further there is work in progress on the issues that have been
documented requires arch specific knowledge to sort out.
The changes below fix or at least document all of the issues that have
been found with siginfo generation. Then proceed to unify struct
siginfo the 32 bit helpers that copy siginfo to and from userspace,
and generally clean up anything that is not arch specific with regards
to siginfo generation.
It is a lot but with the unification you can of siginfo you can
already see the code reduction in the kernel"
* 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (45 commits)
signal/memory-failure: Use force_sig_mceerr and send_sig_mceerr
mm/memory_failure: Remove unused trapno from memory_failure
signal/ptrace: Add force_sig_ptrace_errno_trap and use it where needed
signal/powerpc: Remove unnecessary signal_code parameter of do_send_trap
signal: Helpers for faults with specialized siginfo layouts
signal: Add send_sig_fault and force_sig_fault
signal: Replace memset(info,...) with clear_siginfo for clarity
signal: Don't use structure initializers for struct siginfo
signal/arm64: Better isolate the COMPAT_TASK portion of ptrace_hbptriggered
ptrace: Use copy_siginfo in setsiginfo and getsiginfo
signal: Unify and correct copy_siginfo_to_user32
signal: Remove the code to clear siginfo before calling copy_siginfo_from_user32
signal: Unify and correct copy_siginfo_from_user32
signal/blackfin: Remove pointless UID16_SIGINFO_COMPAT_NEEDED
signal/blackfin: Move the blackfin specific si_codes to asm-generic/siginfo.h
signal/tile: Move the tile specific si_codes to asm-generic/siginfo.h
signal/frv: Move the frv specific si_codes to asm-generic/siginfo.h
signal/ia64: Move the ia64 specific si_codes to asm-generic/siginfo.h
signal/powerpc: Remove redefinition of NSIGTRAP on powerpc
signal: Move addr_lsb into the _sigfault union for clarity
...
- Security mitigations:
- variant 2: invalidating the branch predictor with a call to secure firmware
- variant 3: implementing KPTI for arm64
- 52-bit physical address support for arm64 (ARMv8.2)
- arm64 support for RAS (firmware first only) and SDEI (software
delegated exception interface; allows firmware to inject a RAS error
into the OS)
- Perf support for the ARM DynamIQ Shared Unit PMU
- CPUID and HWCAP bits updated for new floating point multiplication
instructions in ARMv8.4
- Removing some virtual memory layout printks during boot
- Fix initial page table creation to cope with larger than 32M kernel
images when 16K pages are enabled
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"The main theme of this pull request is security covering variants 2
and 3 for arm64. I expect to send additional patches next week
covering an improved firmware interface (requires firmware changes)
for variant 2 and way for KPTI to be disabled on unaffected CPUs
(Cavium's ThunderX doesn't work properly with KPTI enabled because of
a hardware erratum).
Summary:
- Security mitigations:
- variant 2: invalidate the branch predictor with a call to
secure firmware
- variant 3: implement KPTI for arm64
- 52-bit physical address support for arm64 (ARMv8.2)
- arm64 support for RAS (firmware first only) and SDEI (software
delegated exception interface; allows firmware to inject a RAS
error into the OS)
- perf support for the ARM DynamIQ Shared Unit PMU
- CPUID and HWCAP bits updated for new floating point multiplication
instructions in ARMv8.4
- remove some virtual memory layout printks during boot
- fix initial page table creation to cope with larger than 32M kernel
images when 16K pages are enabled"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (104 commits)
arm64: Fix TTBR + PAN + 52-bit PA logic in cpu_do_switch_mm
arm64: Turn on KPTI only on CPUs that need it
arm64: Branch predictor hardening for Cavium ThunderX2
arm64: Run enable method for errata work arounds on late CPUs
arm64: Move BP hardening to check_and_switch_context
arm64: mm: ignore memory above supported physical address size
arm64: kpti: Fix the interaction between ASID switching and software PAN
KVM: arm64: Emulate RAS error registers and set HCR_EL2's TERR & TEA
KVM: arm64: Handle RAS SErrors from EL2 on guest exit
KVM: arm64: Handle RAS SErrors from EL1 on guest exit
KVM: arm64: Save ESR_EL2 on guest SError
KVM: arm64: Save/Restore guest DISR_EL1
KVM: arm64: Set an impdef ESR for Virtual-SError using VSESR_EL2.
KVM: arm/arm64: mask/unmask daif around VHE guests
arm64: kernel: Prepare for a DISR user
arm64: Unconditionally enable IESB on exception entry/return for firmware-first
arm64: kernel: Survive corrected RAS errors notified by SError
arm64: cpufeature: Detect CPU RAS Extentions
arm64: sysreg: Move to use definitions for all the SCTLR bits
arm64: cpufeature: __this_cpu_has_cap() shouldn't stop early
...
Pull x86 hyperv update from Ingo Molnar:
"Enable PCID support on Hyper-V guests"
* 'x86-hyperv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/hyperv: Stop suppressing X86_FEATURE_PCID
Pull x86 apic cleanup from Ingo Molnar:
"A single change simplifying the APIC code bit"
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/apic: Remove local var in flat_send_IPI_allbutself()
Pull scheduler updates from Ingo Molnar:
"The main changes in this cycle were:
- Implement frequency/CPU invariance and OPP selection for
SCHED_DEADLINE (Juri Lelli)
- Tweak the task migration logic for better multi-tasking
workload scalability (Mel Gorman)
- Misc cleanups, fixes and improvements"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/deadline: Make bandwidth enforcement scale-invariant
sched/cpufreq: Move arch_scale_{freq,cpu}_capacity() outside of #ifdef CONFIG_SMP
sched/cpufreq: Remove arch_scale_freq_capacity()'s 'sd' parameter
sched/cpufreq: Always consider all CPUs when deciding next freq
sched/cpufreq: Split utilization signals
sched/cpufreq: Change the worker kthread to SCHED_DEADLINE
sched/deadline: Move CPU frequency selection triggering points
sched/cpufreq: Use the DEADLINE utilization signal
sched/deadline: Implement "runtime overrun signal" support
sched/fair: Only immediately migrate tasks due to interrupts if prev and target CPUs share cache
sched/fair: Correct obsolete comment about cpufreq_update_util()
sched/fair: Remove impossible condition from find_idlest_group_cpu()
sched/cpufreq: Don't pass flags to sugov_set_iowait_boost()
sched/cpufreq: Initialize sg_cpu->flags to 0
sched/fair: Consider RT/IRQ pressure in capacity_spare_wake()
sched/fair: Use 'unsigned long' for utilization, consistently
sched/core: Rework and clarify prepare_lock_switch()
sched/fair: Remove unused 'curr' parameter from wakeup_gran
sched/headers: Constify object_is_on_stack()
Pull x86 RAS updates from Ingo Molnar:
- various AMD SMCA error parsing/reporting improvements (Yazen Ghannam)
- extend Intel CMCI error reporting to more cases (Xie XiuQi)
* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/MCE: Make correctable error detection look at the Deferred bit
x86/MCE: Report only DRAM ECC as memory errors on AMD systems
x86/MCE/AMD: Define a function to get SMCA bank type
x86/mce/AMD: Don't set DEF_INT_TYPE in MSR_CU_DEF_ERR on SMCA systems
x86/MCE: Extend table to report action optional errors through CMCI too
Pull perf updates from Ingo Molnar:
"Kernel side changes:
- Clean up the x86 instruction decoder (Masami Hiramatsu)
- Add new uprobes optimization for PUSH instructions on x86 (Yonghong
Song)
- Add MSR_IA32_THERM_STATUS to the MSR events (Stephane Eranian)
- Fix misc bugs, update documentation, plus various cleanups (Jiri
Olsa)
There's a large number of tooling side improvements:
- Intel-PT/BTS improvements (Adrian Hunter)
- Numerous 'perf trace' improvements (Arnaldo Carvalho de Melo)
- Introduce an errno code to string facility (Hendrik Brueckner)
- Various build system improvements (Jiri Olsa)
- Add support for CoreSight trace decoding by making the perf tools
use the external openCSD (Mathieu Poirier, Tor Jeremiassen)
- Add ARM Statistical Profiling Extensions (SPE) support (Kim
Phillips)
- libtraceevent updates (Steven Rostedt)
- Intel vendor event JSON updates (Andi Kleen)
- Introduce 'perf report --mmaps' and 'perf report --tasks' to show
info present in 'perf.data' (Jiri Olsa, Arnaldo Carvalho de Melo)
- Add infrastructure to record first and last sample time to the
perf.data file header, so that when processing all samples in a
'perf record' session, such as when doing build-id processing, or
when specifically requesting that that info be recorded, use that
in 'perf report --time', that also got support for percent slices
in addition to absolute ones.
I.e. now it is possible to ask for the samples in the 10%-20% time
slice of a perf.data file (Jin Yao)
- Allow system wide 'perf stat --per-thread', sorting the result (Jin
Yao)
E.g.:
[root@jouet ~]# perf stat --per-thread --metrics IPC
^C
Performance counter stats for 'system wide':
make-22229 23,012,094,032 inst_retired.any # 0.8 IPC
cc1-22419 692,027,497 inst_retired.any # 0.8 IPC
gcc-22418 328,231,855 inst_retired.any # 0.9 IPC
cc1-22509 220,853,647 inst_retired.any # 0.8 IPC
gcc-22486 199,874,810 inst_retired.any # 1.0 IPC
as-22466 177,896,365 inst_retired.any # 0.9 IPC
cc1-22465 150,732,374 inst_retired.any # 0.8 IPC
gcc-22508 112,555,593 inst_retired.any # 0.9 IPC
cc1-22487 108,964,079 inst_retired.any # 0.7 IPC
qemu-system-x86-2697 21,330,550 inst_retired.any # 0.3 IPC
systemd-journal-551 20,642,951 inst_retired.any # 0.4 IPC
docker-containe-17651 9,552,892 inst_retired.any # 0.5 IPC
dockerd-current-9809 7,528,586 inst_retired.any # 0.5 IPC
make-22153 12,504,194,380 inst_retired.any # 0.8 IPC
python2-22429 12,081,290,954 inst_retired.any # 0.8 IPC
<SNIP>
python2-22429 15,026,328,103 cpu_clk_unhalted.thread
cc1-22419 826,660,193 cpu_clk_unhalted.thread
gcc-22418 365,321,295 cpu_clk_unhalted.thread
cc1-22509 279,169,362 cpu_clk_unhalted.thread
gcc-22486 210,156,950 cpu_clk_unhalted.thread
<SNIP>
5.638075538 seconds time elapsed
[root@jouet ~]#
- Improve shell auto-completion of perf events (Jin Yao)
- 'perf probe' improvements (Masami Hiramatsu)
- Improve PMU infrastructure to support amp64's ThunderX2
implementation defined core events (Ganapatrao Kulkarni)
- Various annotation related improvements and fixes (Thomas Richter)
- Clarify usage of 'overwrite' and 'backward' in the evlist/mmap
code, removing the 'overwrite' parameter from several functions as
it was always used it as 'false' (Wang Nan)
- Fix/improve 'perf record' reverse recording support (Wang Nan)
- Improve command line options documentation (Sihyeon Jang)
- Optimize sample parsing for ordering events, where we don't need to
parse all the PERF_SAMPLE_ bits, just the ones leading to the
timestamp needed to reorder events (Jiri Olsa)
- Generalize the annotation code to support other source information
besides objdump/DWARF obtained ones, starting with python scripts,
that will is slated to be merged soon (Jiri Olsa)
- ... and a lot more that I failed to list, see the shortlog and
changelog for details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (262 commits)
perf trace beauty flock: Move to separate object file
perf evlist: Remove fcntl.h from evlist.h
perf trace beauty futex: Beautify FUTEX_BITSET_MATCH_ANY
perf trace: Do not print from time delta for interrupted syscall lines
perf trace: Add --print-sample
perf bpf: Remove misplaced __maybe_unused attribute
MAINTAINERS: Adding entry for CoreSight trace decoding
perf tools: Add mechanic to synthesise CoreSight trace packets
perf tools: Add full support for CoreSight trace decoding
pert tools: Add queue management functionality
perf tools: Add functionality to communicate with the openCSD decoder
perf tools: Add support for decoding CoreSight trace data
perf tools: Add decoder mechanic to support dumping trace data
perf tools: Add processing of coresight metadata
perf tools: Add initial entry point for decoder CoreSight traces
perf tools: Integrating the CoreSight decoding library
perf vendor events intel: Update IvyTown files to V20
perf vendor events intel: Update IvyBridge files to V20
perf vendor events intel: Update BroadwellDE events to V7
perf vendor events intel: Update SkylakeX events to V1.06
...
Pull locking updates from Ingo Molnar:
"The main changes relate to making lock_is_held() et al (and external
wrappers of them) work on const data types - this requires const
propagation through the depths of lockdep.
This removes a number of ugly type hacks the external helpers used"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
lockdep: Convert some users to const
lockdep: Make lockdep checking constant
lockdep: Assign lock keys on registration
Pull EFI updates from Ingo Molnar:
"The biggest change in this cycle was the addition of ARM CPER error
decoding when printing EFI errors into the kernel log.
There are also misc smaller updates: documentation update, cleanups
and an EFI memory map permissions quirk"
* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/efi: Clarify that reset attack mitigation needs appropriate userspace
efi: Parse ARM error information value
efi: Move ARM CPER code to new file
efi: Use PTR_ERR_OR_ZERO()
arm64/efi: Ignore EFI_MEMORY_XP attribute if RP and/or WP are set
efi/capsule-loader: Fix pr_err() string to end with newline
Pull RCU updates from Ingo Molnar:
"The main RCU changes in this cycle were:
- Updates to use cond_resched() instead of cond_resched_rcu_qs()
where feasible (currently everywhere except in kernel/rcu and in
kernel/torture.c). Also a couple of fixes to avoid sending IPIs to
offline CPUs.
- Updates to simplify RCU's dyntick-idle handling.
- Updates to remove almost all uses of smp_read_barrier_depends() and
read_barrier_depends().
- Torture-test updates.
- Miscellaneous fixes"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (72 commits)
torture: Save a line in stutter_wait(): while -> for
torture: Eliminate torture_runnable and perf_runnable
torture: Make stutter less vulnerable to compilers and races
locking/locktorture: Fix num reader/writer corner cases
locking/locktorture: Fix rwsem reader_delay
torture: Place all torture-test modules in one MAINTAINERS group
rcutorture/kvm-build.sh: Skip build directory check
rcutorture: Simplify functions.sh include path
rcutorture: Simplify logging
rcutorture/kvm-recheck-*: Improve result directory readability check
rcutorture/kvm.sh: Support execution from any directory
rcutorture/kvm.sh: Use consistent help text for --qemu-args
rcutorture/kvm.sh: Remove unused variable, `alldone`
rcutorture: Remove unused script, config2frag.sh
rcutorture/configinit: Fix build directory error message
rcutorture: Preempt RCU-preempt readers more vigorously
torture: Reduce #ifdefs for preempt_schedule()
rcu: Remove have_rcu_nocb_mask from tree_plugin.h
rcu: Add comment giving debug strategy for double call_rcu()
tracing, rcu: Hide trace event rcu_nocb_wake when not used
...
Pull STRICT_DEVMEM default from Ingo Molnar:
"Make CONFIG_STRICT_DEVMEM default-y on x86 and arm64 as well, to
follow the distro status quo"
* 'core-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Kconfig: Make STRICT_DEVMEM default-y on x86 and arm64
There is no entry file_mapped in the memory.stat file. This looks like a
simple word flip that's gone unnoticed since 2010 (dc10e281f5,
memcg: update documentation).
Signed-off-by: Florian Schmidt <florian.schmidt@neclab.eu>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Some of the info, warning, and error messages are missing their trailing
newline.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
The vfs clears the I_DIRTY inode flag before calling gfs2_write_inode()
having queued any data that needed to be written to disk.
This is a good time to remove such inodes from our ordered write list
so they don't hang around for long periods of time.
Signed-off-by: Abhi Das <adas@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Pull x86/pti updates from Thomas Gleixner:
"Another set of melted spectrum related changes:
- Code simplifications and cleanups for RSB and retpolines.
- Make the indirect calls in KVM speculation safe.
- Whitelist CPUs which are known not to speculate from Meltdown and
prepare for the new CPUID flag which tells the kernel that a CPU is
not affected.
- A less rigorous variant of the module retpoline check which merily
warns when a non-retpoline protected module is loaded and reflects
that fact in the sysfs file.
- Prepare for Indirect Branch Prediction Barrier support.
- Prepare for exposure of the Speculation Control MSRs to guests, so
guest OSes which depend on those "features" can use them. Includes
a blacklist of the broken microcodes. The actual exposure of the
MSRs through KVM is still being worked on"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation: Simplify indirect_branch_prediction_barrier()
x86/retpoline: Simplify vmexit_fill_RSB()
x86/cpufeatures: Clean up Spectre v2 related CPUID flags
x86/cpu/bugs: Make retpoline module warning conditional
x86/bugs: Drop one "mitigation" from dmesg
x86/nospec: Fix header guards names
x86/alternative: Print unadorned pointers
x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support
x86/cpufeature: Blacklist SPEC_CTRL/PRED_CMD on early Spectre v2 microcodes
x86/pti: Do not enable PTI on CPUs which are not vulnerable to Meltdown
x86/msr: Add definitions for new speculation control MSRs
x86/cpufeatures: Add AMD feature bits for Speculation Control
x86/cpufeatures: Add Intel feature bits for Speculation Control
x86/cpufeatures: Add CPUID_7_EDX CPUID leaf
module/retpoline: Warn about missing retpoline in module
KVM: VMX: Make indirect call speculation safe
KVM: x86: Make indirect calls in emulator speculation safe
Pull x86 mm update from Thomas Gleixner:
"A single patch which excludes the GART aperture from vmcore as
accessing that area from a dump kernel can crash the kernel.
Not necessarily the nicest way to fix this, but curing this from
ground up requires a more thorough rewrite of the whole kexec/kdump
magic"
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/gart: Exclude GART aperture from vmcore
Pull x86 timer updates from Thomas Gleixner:
"A small set of updates for x86 specific timers:
- Mark TSC invariant on a subset of Centaur CPUs
- Allow TSC calibration without PIT on mobile platforms which lack
legacy devices"
* 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/centaur: Mark TSC invariant
x86/tsc: Introduce early tsc clocksource
x86/time: Unconditionally register legacy timer interrupt
x86/tsc: Allow TSC calibration without PIT
Pull x86 platform updates from Thomas Gleixner:
"The platform support for x86 contains the following updates:
- A set of updates for the UV platform to support new CPUs and to fix
some of the UV4A BAU MRRs
- The initial platform support for the jailhouse hypervisor to allow
native Linux guests (inmates) in non-root cells.
- A fix for the PCI initialization on Intel MID platforms"
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
x86/jailhouse: Respect pci=lastbus command line settings
x86/jailhouse: Set X86_FEATURE_TSC_KNOWN_FREQ
x86/platform/intel-mid: Move PCI initialization to arch_init()
x86/platform/uv/BAU: Replace hard-coded values with MMR definitions
x86/platform/UV: Fix UV4A BAU MMRs
x86/platform/UV: Fix GAM MMR references in the UV x2apic code
x86/platform/UV: Fix GAM MMR changes in UV4A
x86/platform/UV: Add references to access fixed UV4A HUB MMRs
x86/platform/UV: Fix UV4A support on new Intel Processors
x86/platform/UV: Update uv_mmrs.h to prepare for UV4A fixes
x86/jailhouse: Add PCI dependency
x86/jailhouse: Hide x2apic code when CONFIG_X86_X2APIC=n
x86/jailhouse: Initialize PCI support
x86/jailhouse: Wire up IOAPIC for legacy UART ports
x86/jailhouse: Halt instead of failing to restart
x86/jailhouse: Silence ACPI warning
x86/jailhouse: Avoid access of unsupported platform resources
x86/jailhouse: Set up timekeeping
x86/jailhouse: Enable PMTIMER
x86/jailhouse: Enable APIC and SMP support
...
Pull x86/cache updates from Thomas Gleixner:
"A set of patches which add support for L2 cache partitioning to the
Intel RDT facility"
* 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/intel_rdt: Add command line parameter to control L2_CDP
x86/intel_rdt: Enable L2 CDP in MSR IA32_L2_QOS_CFG
x86/intel_rdt: Add two new resources for L2 Code and Data Prioritization (CDP)
x86/intel_rdt: Enumerate L2 Code and Data Prioritization (CDP) feature
x86/intel_rdt: Add L2CDP support in documentation
x86/intel_rdt: Update documentation
Pull timer updates from Thomas Gleixner:
"The timer departement presents:
- A rather large rework of the hrtimer infrastructure which
introduces softirq based hrtimers to replace the spread of
hrtimer/tasklet combos which force the actual callback execution
into softirq context. The approach is completely different from the
initial implementation which you cursed at 10 years ago rightfully.
The softirq based timers have their own queues and there is no
nasty indirection and list reshuffling in the hard interrupt
anymore. This comes with conversion of some of the hrtimer/tasklet
users, the rest and the final removal of that horrible interface
will come towards the end of the merge window or go through the
relevant maintainer trees.
Note: The top commit merged the last minute bugfix for the 10 years
old CPU hotplug bug as I wanted to make sure that I fatfinger the
merge conflict resolution myself.
- The overhaul of the STM32 clocksource/clockevents driver
- A new driver for the Spreadtrum SC9860 timer
- A new driver dor the Actions Semi S700 timer
- The usual set of fixes and updates all over the place"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits)
usb/gadget/NCM: Replace tasklet with softirq hrtimer
ALSA/dummy: Replace tasklet with softirq hrtimer
hrtimer: Implement SOFT/HARD clock base selection
hrtimer: Implement support for softirq based hrtimers
hrtimer: Prepare handling of hard and softirq based hrtimers
hrtimer: Add clock bases and hrtimer mode for softirq context
hrtimer: Use irqsave/irqrestore around __run_hrtimer()
hrtimer: Factor out __hrtimer_next_event_base()
hrtimer: Factor out __hrtimer_start_range_ns()
hrtimer: Remove the 'base' parameter from hrtimer_reprogram()
hrtimer: Make remote enqueue decision less restrictive
hrtimer: Unify remote enqueue handling
hrtimer: Unify hrtimer removal handling
hrtimer: Make hrtimer_force_reprogramm() unconditionally available
hrtimer: Make hrtimer_reprogramm() unconditional
hrtimer: Make hrtimer_cpu_base.next_timer handling unconditional
hrtimer: Make the remote enqueue check unconditional
hrtimer: Use accesor functions instead of direct access
hrtimer: Make the hrtimer_cpu_base::hres_active field unconditional, to simplify the code
hrtimer: Make room in 'struct hrtimer_cpu_base'
...
Pull irq updates from Thomas Gleixner:
"A rather small set of irq updates this time:
- removal of the old and now obsolete irq domain debugging code
- the new Goldfish PIC driver
- the usual pile of small fixes and updates"
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqdomain: Kill CONFIG_IRQ_DOMAIN_DEBUG
irq/work: Improve the flag definitions
irqchip/gic-v3: Fix the driver probe() fail due to disabled GICC entry
irqchip/irq-goldfish-pic: Add Goldfish PIC driver
dt-bindings/goldfish-pic: Add device tree binding for Goldfish PIC driver
irqchip/ompic: fix return value check in ompic_of_init()
dt-bindings/bcm283x: Define polarity of per-cpu interrupts
irqchip/irq-bcm2836: Add support for DT interrupt polarity
dt-bindings/bcm2836-l1-intc: Add interrupt polarity support
- add SSP support;
- add KASAN support;
- improvements to xtensa-specific assembly:
- use ENTRY and ENDPROC consistently;
- clean up and unify word alignment macros;
- clean up and unify fixup marking;
- use 'call' instead of 'callx' where possible;
- various cleanups:
- consiolidate kernel stack size related definitions;
- replace #ifdef'fed/commented out debug printk statements with pr_debug;
- use struct exc_table instead of flat array for exception handling data;
- build kernel with -mtext-section-literals; simplify xtensa linker script;
- fix futex_atomic_cmpxchg_inatomic.
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Merge tag 'xtensa-20180129' of git://github.com/jcmvbkbc/linux-xtensa
Pull Xtensa updates from Max Filippov:
- add SSP support
- add KASAN support
- improvements to xtensa-specific assembly:
- use ENTRY and ENDPROC consistently
- clean up and unify word alignment macros
- clean up and unify fixup marking
- use 'call' instead of 'callx' where possible
- various cleanups:
- consiolidate kernel stack size related definitions
- replace #ifdef'fed/commented out debug printk statements with
pr_debug
- use struct exc_table instead of flat array for exception handling
data
- build kernel with -mtext-section-literals; simplify xtensa linker
script
- fix futex_atomic_cmpxchg_inatomic()
* tag 'xtensa-20180129' of git://github.com/jcmvbkbc/linux-xtensa: (21 commits)
xtensa: fix futex_atomic_cmpxchg_inatomic
xtensa: shut up gcc-8 warnings
xtensa: print kernel sections info in mem_init
xtensa: use generic strncpy_from_user with KASAN
xtensa: use __memset in __xtensa_clear_user
xtensa: add support for KASAN
xtensa: move fixmap and kmap just above the KSEG
xtensa: don't clear swapper_pg_dir in paging_init
xtensa: extract init_kio
xtensa: implement early_trap_init
xtensa: clean up exception handling structure
xtensa: clean up custom-controlled debug output
xtensa: enable stack protector
xtensa: print hardware config ID on startup
xtensa: consolidate kernel stack size related definitions
xtensa: clean up functions in assembly code
xtensa: clean up word alignment macros in assembly code
xtensa: clean up fixups in assembly code
xtensa: use call instead of callx in assembly code
xtensa: build kernel with text-section-literals
...
- First part of an overhaul of the NuBus subsystem, to bring it up to
modern driver model standards,
- A race condition fix for Mac,
- Defconfig updates.
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Merge tag 'm68k-for-v4.16-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven:
- first part of an overhaul of the NuBus subsystem, to bring it up to
modern driver model standards
- a race condition fix for Mac
- defconfig updates
* tag 'm68k-for-v4.16-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
MAINTAINERS: Add NuBus subsystem entry
m68k/mac: Fix race conditions in OSS interrupt dispatch
nubus: Add support for the driver model
nubus: Add expansion_type values for various Mac models
nubus: Adopt standard linked list implementation
nubus: Rename struct nubus_dev
nubus: Rework /proc/bus/nubus/s/ implementation
nubus: Generalize block resource handling
nubus: Clean up whitespace
nubus: Remove redundant code
nubus: Call proc_mkdir() not more than once per slot directory
nubus: Validate slot resource IDs
nubus: Fix log spam
nubus: Use static functions where possible
nubus: Fix up header split
nubus: Avoid array underflow and overflow
m68k/defconfig: Update defconfigs for v4.15-rc1
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Merge tag 'for-4.16-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"Features or user visible changes:
- fallocate: implement zero range mode
- avoid losing data raid profile when deleting a device
- tree item checker: more checks for directory items and xattrs
Notable fixes:
- raid56 recovery: don't use cached stripes, that could be
potentially changed and a later RMW or recovery would lead to
corruptions or failures
- let raid56 try harder to rebuild damaged data, reading from all
stripes if necessary
- fix scrub to repair raid56 in a similar way as in the case above
Other:
- cleanups: device freeing, removed some call indirections, redundant
bio_put/_get, unused parameters, refactorings and renames
- RCU list traversal fixups
- simplify mount callchain, remove recursing back when mounting a
subvolume
- plug for fsync, may improve bio merging on multiple devices
- compression heurisic: replace heap sort with radix sort, gains some
performance
- add extent map selftests, buffered write vs dio"
* tag 'for-4.16-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (155 commits)
btrfs: drop devid as device_list_add() arg
btrfs: get device pointer from device_list_add()
btrfs: set the total_devices in device_list_add()
btrfs: move pr_info into device_list_add
btrfs: make btrfs_free_stale_devices() to match the path
btrfs: rename btrfs_free_stale_devices() arg to skip_dev
btrfs: make btrfs_free_stale_devices() argument optional
btrfs: make btrfs_free_stale_device() to iterate all stales
btrfs: no need to check for btrfs_fs_devices::seeding
btrfs: Use IS_ALIGNED in btrfs_truncate_block instead of opencoding it
Btrfs: noinline merge_extent_mapping
Btrfs: add WARN_ONCE to detect unexpected error from merge_extent_mapping
Btrfs: extent map selftest: dio write vs dio read
Btrfs: extent map selftest: buffered write vs dio read
Btrfs: add extent map selftests
Btrfs: move extent map specific code to extent_map.c
Btrfs: add helper for em merge logic
Btrfs: fix unexpected EEXIST from btrfs_get_extent
Btrfs: fix incorrect block_len in merge_extent_mapping
btrfs: Remove unused readahead spinlock
...
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Merge tag '4.16-rc-SMB3' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs updates from Steve French:
"Some fixes for stable, fixed SMB3 DFS support, SMB3 Direct (RDMA) and
various bug fixes and cleanup"
* tag '4.16-rc-SMB3' of git://git.samba.org/sfrench/cifs-2.6: (60 commits)
fs/cifs/cifsacl.c Fixes typo in a comment
update internal version number for cifs.ko
cifs: add .splice_write
CIFS: document tcon/ses/server refcount dance
move a few externs to smbdirect.h to eliminate warning
CIFS: zero sensitive data when freeing
Cleanup some minor endian issues in smb3 rdma
CIFS: dump IPC tcon in debug proc file
CIFS: use tcon_ipc instead of use_ipc parameter of SMB2_ioctl
CIFS: make IPC a regular tcon
cifs: remove redundant duplicated assignment of pointer 'node'
CIFS: SMBD: work around gcc -Wmaybe-uninitialized warning
cifs: Fix autonegotiate security settings mismatch
CIFS: SMBD: _smbd_get_connection() can be static
CIFS: SMBD: Disable signing on SMB direct transport
CIFS: SMBD: Add SMB Direct debug counters
CIFS: SMBD: Upper layer performs SMB read via RDMA write through memory registration
CIFS: SMBD: Read correct returned data length for RDMA write (SMB read) I/O
CIFS: SMBD: Upper layer performs SMB write via RDMA read through memory registration
CIFS: SMBD: Implement RDMA memory registration
...
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Merge tag 'iversion-v4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
Pull inode->i_version rework from Jeff Layton:
"This pile of patches is a rework of the inode->i_version field. We
have traditionally incremented that field on every inode data or
metadata change. Typically this increment needs to be logged on disk
even when nothing else has changed, which is rather expensive.
It turns out though that none of the consumers of that field actually
require this behavior. The only real requirement for all of them is
that it be different iff the inode has changed since the last time the
field was checked.
Given that, we can optimize away most of the i_version increments and
avoid dirtying inode metadata when the only change is to the i_version
and no one is querying it. Queries of the i_version field are rather
rare, so we can help write performance under many common workloads.
This patch series converts existing accesses of the i_version field to
a new API, and then converts all of the in-kernel filesystems to use
it. The last patch in the series then converts the backend
implementation to a scheme that optimizes away a large portion of the
metadata updates when no one is looking at it.
In my own testing this series significantly helps performance with
small I/O sizes. I also got this email for Christmas this year from
the kernel test robot (a 244% r/w bandwidth improvement with XFS over
DAX, with 4k writes):
https://lkml.org/lkml/2017/12/25/8
A few of the earlier patches in this pile are also flowing to you via
other trees (mm, integrity, and nfsd trees in particular)".
* tag 'iversion-v4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux: (22 commits)
fs: handle inode->i_version more efficiently
btrfs: only dirty the inode in btrfs_update_time if something was changed
xfs: avoid setting XFS_ILOG_CORE if i_version doesn't need incrementing
fs: only set S_VERSION when updating times if necessary
IMA: switch IMA over to new i_version API
xfs: convert to new i_version API
ufs: use new i_version API
ocfs2: convert to new i_version API
nfsd: convert to new i_version API
nfs: convert to new i_version API
ext4: convert to new i_version API
ext2: convert to new i_version API
exofs: switch to new i_version API
btrfs: convert to new i_version API
afs: convert to new i_version API
affs: convert to new i_version API
fat: convert to new i_version API
fs: don't take the i_lock in inode_inc_iversion
fs: new API for handling inode->i_version
ntfs: remove i_version handling
...
- Usage of new fscrypt APIs
- A fix for a Fastmap issue
- Other minor bug fixes
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Merge tag 'upstream-4.16-rc1' of git://git.infradead.org/linux-ubifs
Pull UBI/UBIFS updates from Richard Weinberger:
- use the new fscrypt APIs
- a fix for a Fastmap issue
- other minor bug fixes
* tag 'upstream-4.16-rc1' of git://git.infradead.org/linux-ubifs:
ubi: block: Fix locking for idr_alloc/idr_remove
mtd: ubi: wl: Fix error return code in ubi_wl_init()
ubi: Fix copy/paste error in function documentation
ubi: Fastmap: Fix typo
ubifs: remove error message in ubifs_xattr_get
ubi: fastmap: Erase outdated anchor PEBs during attach
ubifs: switch to fscrypt_prepare_setattr()
ubifs: switch to fscrypt_prepare_lookup()
ubifs: switch to fscrypt_prepare_rename()
ubifs: switch to fscrypt_prepare_link()
ubifs: switch to fscrypt_file_open()
ubi: fastmap: Clean up the initialization of pointer p
ubi: fastmap: Use kmem_cache_free to deallocate memory
ubi: Fix race condition between ubi volume creation and udev
mtd: ubi: Use 'max_bad_blocks' to compute bad_peb_limit if available
ubifs: Fix uninitialized variable in search_dh_cookie()
Pull block updates from Jens Axboe:
"This is the main pull request for block IO related changes for the
4.16 kernel. Nothing major in this pull request, but a good amount of
improvements and fixes all over the map. This contains:
- BFQ improvements, fixes, and cleanups from Angelo, Chiara, and
Paolo.
- Support for SMR zones for deadline and mq-deadline from Damien and
Christoph.
- Set of fixes for bcache by way of Michael Lyle, including fixes
from himself, Kent, Rui, Tang, and Coly.
- Series from Matias for lightnvm with fixes from Hans Holmberg,
Javier, and Matias. Mostly centered around pblk, and the removing
rrpc 1.2 in preparation for supporting 2.0.
- A couple of NVMe pull requests from Christoph. Nothing major in
here, just fixes and cleanups, and support for command tracing from
Johannes.
- Support for blk-throttle for tracking reads and writes separately.
From Joseph Qi. A few cleanups/fixes also for blk-throttle from
Weiping.
- Series from Mike Snitzer that enables dm to register its queue more
logically, something that's alwways been problematic on dm since
it's a stacked device.
- Series from Ming cleaning up some of the bio accessor use, in
preparation for supporting multipage bvecs.
- Various fixes from Ming closing up holes around queue mapping and
quiescing.
- BSD partition fix from Richard Narron, fixing a problem where we
can't mount newer (10/11) FreeBSD partitions.
- Series from Tejun reworking blk-mq timeout handling. The previous
scheme relied on atomic bits, but it had races where we would think
a request had timed out if it to reused at the wrong time.
- null_blk now supports faking timeouts, to enable us to better
exercise and test that functionality separately. From me.
- Kill the separate atomic poll bit in the request struct. After
this, we don't use the atomic bits on blk-mq anymore at all. From
me.
- sgl_alloc/free helpers from Bart.
- Heavily contended tag case scalability improvement from me.
- Various little fixes and cleanups from Arnd, Bart, Corentin,
Douglas, Eryu, Goldwyn, and myself"
* 'for-4.16/block' of git://git.kernel.dk/linux-block: (186 commits)
block: remove smart1,2.h
nvme: add tracepoint for nvme_complete_rq
nvme: add tracepoint for nvme_setup_cmd
nvme-pci: introduce RECONNECTING state to mark initializing procedure
nvme-rdma: remove redundant boolean for inline_data
nvme: don't free uuid pointer before printing it
nvme-pci: Suspend queues after deleting them
bsg: use pr_debug instead of hand crafted macros
blk-mq-debugfs: don't allow write on attributes with seq_operations set
nvme-pci: Fix queue double allocations
block: Set BIO_TRACE_COMPLETION on new bio during split
blk-throttle: use queue_is_rq_based
block: Remove kblockd_schedule_delayed_work{,_on}()
blk-mq: Avoid that blk_mq_delay_run_hw_queue() introduces unintended delays
blk-mq: Rename blk_mq_request_direct_issue() into blk_mq_request_issue_directly()
lib/scatterlist: Fix chaining support in sgl_alloc_order()
blk-throttle: track read and write request individually
block: add bdev_read_only() checks to common helpers
block: fail op_is_write() requests to read-only partitions
blk-throttle: export io_serviced_recursive, io_service_bytes_recursive
...
* small cleanups
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Merge tag 'edac_for_4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Pull EDAC updates from Borislav Petkov:
- new EDAC driver for some TI SOCs (Tero Kristo)
- small cleanups
* tag 'edac_for_4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC, mv64x60: Fix an error handling path
EDAC, ti: Add support for TI keystone and DRA7xx EDAC
EDAC, octeon: Fix an uninitialized variable warning
A very busy release for regmap, all fairly specialist stuff but useful:
- Support for disabling locking from Bartosz Golaszewski, allowing
users that handle their own locking to save some overhead.
- Support for hwspinlocks in syscons in MFD from Baolin Wang, this is
going through the regmap tree since the first users turned up some
some cases that needed interface tweaks with 0 being used as a syscon
identifier.
- Support for devices with no read or write flag from Andrew F. Davis.
- Basic support for devices on SoundWire buses from Vinod Koul.
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Merge tag 'regmap-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"A very busy release for regmap, all fairly specialist stuff but
useful:
- Support for disabling locking from Bartosz Golaszewski, allowing
users that handle their own locking to save some overhead.
- Support for hwspinlocks in syscons in MFD from Baolin Wang, this is
going through the regmap tree since the first users turned up some
some cases that needed interface tweaks with 0 being used as a
syscon identifier.
- Support for devices with no read or write flag from Andrew F.
Davis.
- Basic support for devices on SoundWire buses from Vinod Koul"
* tag 'regmap-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
mfd: syscon: Add hardware spinlock support
regmap: Allow empty read/write_flag_mask
regcache: flat: Un-inline index lookup from cache access
regmap: Add SoundWire bus support
regmap: Add one flag to indicate if a hwlock should be used
regmap: debugfs: document why we don't create the debugfs entries
regmap: debugfs: emit a debug message when locking is disabled
regmap: use proper part of work_buf for storing val
regmap: potentially duplicate the name string stored in regmap
regmap: Disable debugfs when locking is disabled
regmap: rename regmap_lock_unlock_empty() to regmap_lock_unlock_none()
regmap: allow to disable all locking mechanisms
regmap: Remove the redundant config to select hwspinlock
This is a quiet release in terms of code volume but a fairly big one in
terms of framework changes - we've got one long awaited feature in the
form of runtime configuration of suspend and the start of coupled
regulator support too:
- Support for modifying the voltage and enable configuration devices
will have in suspend, contributed by Chunyan Zhang.
- Support for the Spreadtrum SC2731, contributed by Erick Chen.
- The start of changes to support coupled regulators from Maciej
Purski, the rest of the series should arrive for v4.17.
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Merge tag 'regulator-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This is a quiet release in terms of code volume but a fairly big one
in terms of framework changes - we've got one long awaited feature in
the form of runtime configuration of suspend and the start of coupled
regulator support too:
- Support for modifying the voltage and enable configuration devices
will have in suspend, contributed by Chunyan Zhang.
- Support for the Spreadtrum SC2731, contributed by Erick Chen.
- The start of changes to support coupled regulators from Maciej
Purski, the rest of the series should arrive for v4.17"
* tag 'regulator-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: Fix build error
regulator: core: Refactor regulator_list_voltage()
regulator: core: Move of_find_regulator_by_node() to of_regulator.c
regulator: add PM suspend and resume hooks
regulator: empty the old suspend functions
regulator: leave one item to record whether regulator is enabled
regulator: make regulator voltage be an array to support more states
regulator: added support for suspend states
regulator: qcom_spmi: Use regmap helpers for enable/disable/is_enabled callback
regulator: sc2731: Fix defines for SC2731_WR_UNLOCK and SC2731_PWR_WR_PROT_VALUE
regulator: fix incorrect indentation of two assignment statements
regulator: sc2731: Add regulator driver to support Spreadtrum SC2731 PMIC
regulator: Add Spreadtrum SC2731 regulator documentation
regulator: Update code examples in documentation
MAINTAINERS: regulator: Add Documentation/power/regulator/
regulator: tps65218: Add NULL test for devm_kzalloc call
regulator: tps65218: Remove unused enum tps65218_regulators
Quite a quiet release for SPI, there are no changes at all to the core
and not that many changes to drivers. Highlights of those driver
changes include:
- SH MSIOF support for GPIO chip selects contributed by Geert
Uytterhoeven.
- Full duplex support for a3700 contributed by Maxime Chevallier.
- Support for DMA transfers on Atmel devices that require a bounce
buffer contributed by Radu Pirea.
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Merge tag 'spi-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"Quite a quiet release for SPI, there are no changes at all to the core
and not that many changes to drivers. Highlights of those driver
changes include:
- SH MSIOF support for GPIO chip selects contributed by Geert
Uytterhoeven.
- Full duplex support for a3700 contributed by Maxime Chevallier.
- Support for DMA transfers on Atmel devices that require a bounce
buffer contributed by Radu Pirea"
* tag 'spi-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (31 commits)
spi: dw: Remove unused members from struct chip_data
spi: orion: Fix a resource leak if the optional "axi" clk is deferred
spi: a3700: Remove endianness swapping for full-duplex transfers
spi: a3700: Remove endianness swapping functions when accessing FIFOs
spi: a3700: Add full-duplex support
spi: a3700: Allow to enable or disable FIFO mode
spi: a3700: Set frequency limits at startup
spi: a3700: Clear DATA_OUT when performing a read
spi: orion: Fix clock resource by adding an optional bus clock
spi: s3c64xx: add SPDX identifier
spi: imx: do not access registers while clocks disabled
spi: atmel: Implements transfers with bounce buffer
spi: sh-msiof: Fix timeout failures for TX-only DMA transfers
spi: spi-fsl-dspi: account for const type of of_device_id.data
spi: bcm53xx: simplify reading SPI data
spi: sirf: account for const type of of_device_id.data
spi: pxa2xx: Use gpiod_put() not gpiod_free()
spi: pxa2xx: avoid redundant gpio_to_desc(desc_to_gpio()) round-trip
spi: sh-msiof: Document hardware limitations related to chip selects
spi: sh-msiof: Implement cs-gpios configuration
...
specially highlighted.
First, we have converted the MMC block device from using the legacy blk
interface into using the modern blkmq interface. Not only do we get all the
nice effects from using blkmq, but it also means that new fresh nice code
replaces old rusty code. Great news to everybody that cares about MMC/SD!
It should also be noted that converting to blkmq has not been trivial, mostly
because of that we have been carrying too much of MMC specific optimizations
for the I/O request path, rather than striving to move these to the generic blk
layer. Hopefully we won't be doing that mistake, ever again.
Special thanks to Adrian Hunter (Intel) and to Linus Walleij (Linaro), who both
have been working on this for quite some time!
Second, on top of the blkmq deployment, we have enabled full support the eMMC
command queuing feature, introduced in the eMMC v.5.1 spec. This also includes
an implementation of a host driver library, supporting the corresponding CQHCI
HW. Ideally, those controllers that supports CQHCI should only need some minor
adaptations to make this play.
So far the sdhci-pci driver for the Intel GLKs and the sdhci-of-arasan driver
used on Rockchip RK3399, have enabled support for eMMC command queueing.
Worth to highlight is also that, implementing the eMMC command queuing support
has been a collaborative effort, as several people from Codeaurora, Rockchip,
Intel and Linaro have been involved. However, the work has been driven by
Adrian Hunter (Intel).
In some shadow of the above, here are the rest of the highlights:
MMC core:
- Don't remove non-removable cards during system suspend
- Add a slot-gpio helper to check capability of GPIO WP detection
MMC host:
- sdhci: Cleanups and improvements of some wakeup related code
- sdhci-pci-arasan: New variant to support Arasan PCI HW with integrated phy
- sdhci-acpi: Avoid broken UHS transfer modes on Intel CHT
- sdhci-acpi: Add support for ACPI HID of AMD Controller with HS400
- sdhci_f_sdh30: Add ACPI support
- sdhci-esdhc-imx: Enable/disable clock at runtime suspend/resume
- sdhci-of-esdhc: A few minor fixes
- mmci: Add support for new STM32 variant
- renesas_sdhi: enable R-Car D3 (r8a77995) support
- tmio/renesas_sdhi: Re-structuring, cleanups and modernizations
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Merge tag 'mmc-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson:
"There are two major achievements for MMC in this release, which
deserves to be specially highlighted.
First, we have converted the MMC block device from using the legacy
blk interface into using the modern blkmq interface. Not only do we
get all the nice effects from using blkmq, but it also means that new
fresh nice code replaces old rusty code. Great news to everybody that
cares about MMC/SD!
It should also be noted that converting to blkmq has not been trivial,
mostly because of that we have been carrying too much of MMC specific
optimizations for the I/O request path, rather than striving to move
these to the generic blk layer. Hopefully we won't be doing that
mistake, ever again.
Special thanks to Adrian Hunter (Intel) and to Linus Walleij (Linaro),
who both have been working on this for quite some time!
Second, on top of the blkmq deployment, we have enabled full support
the eMMC command queuing feature, introduced in the eMMC v.5.1 spec.
This also includes an implementation of a host driver library,
supporting the corresponding CQHCI HW. Ideally, those controllers that
supports CQHCI should only need some minor adaptations to make this
play.
So far the sdhci-pci driver for the Intel GLKs and the sdhci-of-arasan
driver used on Rockchip RK3399, have enabled support for eMMC command
queueing.
Worth to highlight is also that, implementing the eMMC command queuing
support has been a collaborative effort, as several people from
Codeaurora, Rockchip, Intel and Linaro have been involved. However,
the work has been driven by Adrian Hunter (Intel).
In some shadow of the above, here are the rest of the highlights:
MMC core:
- Don't remove non-removable cards during system suspend
- Add a slot-gpio helper to check capability of GPIO WP detection
MMC host:
- sdhci: Cleanups and improvements of some wakeup related code
- sdhci-pci-arasan: New variant to support Arasan PCI HW with integrated phy
- sdhci-acpi: Avoid broken UHS transfer modes on Intel CHT
- sdhci-acpi: Add support for ACPI HID of AMD Controller with HS400
- sdhci_f_sdh30: Add ACPI support
- sdhci-esdhc-imx: Enable/disable clock at runtime suspend/resume
- sdhci-of-esdhc: A few minor fixes
- mmci: Add support for new STM32 variant
- renesas_sdhi: enable R-Car D3 (r8a77995) support
- tmio/renesas_sdhi: Re-structuring, cleanups and modernizations"
* tag 'mmc-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (96 commits)
mmc: mmci: fix error return code in mmci_probe()
mmc: davinci: suppress error message on EPROBE_DEFER
mmc: davinci: dont' use module_platform_driver_probe()
mmc: tmio: hide unused tmio_mmc_clk_disable/tmio_mmc_clk_enable functions
mmc: mmci: Add STM32 variant
mmc: mmci: Add support for setting pad type via pinctrl
mmc: mmci: Don't pretend all variants to have OPENDRAIN bit
mmc: mmci: Don't pretend all variants to have MCI_STARBITERR flag
mmc: mmci: Don't pretend all variants to have MMCIMASK1 register
mmc: tmio: refactor .get_ro hook
mmc: slot-gpio: add a helper to check capability of GPIO WP detection
mmc: tmio: remove dma_ops from tmio_mmc_host_probe() argument
mmc: tmio: move {tmio_}mmc_of_parse() to tmio_mmc_host_alloc()
mmc: tmio: move clk_enable/disable out of tmio_mmc_host_probe()
mmc: tmio: ioremap memory resource in tmio_mmc_host_alloc()
mmc: sh_mmcif: remove redundant initialization of 'opc'
mmc: sdhci: Rework sdhci_enable_irq_wakeups()
mmc: sdhci: Handle failure of enable_irq_wake()
mmc: sdhci: Stop exporting sdhci_enable_irq_wakeups()
mmc: sdhci-pci: Use device wakeup capability to determine MMC_PM_WAKE_SDIO_IRQ capability
...
Linus Torvalds
Eric Biggers
Jeff Layton
Florian Schmidt
Andreas Gruenbacher
Abhi Das