Thomas Gleixner
fd659cc095
arch: System call unification and cleanup ...
The system call tables have diverged a bit over the years, and a number
of the recent additions never made it into all architectures, for one
reason or another.
This is an attempt to clean it up as far as we can without breaking
compatibility, doing a number of steps:
- Add system calls that have not yet been integrated into all
architectures but that we definitely want there. This includes
{,f}statfs64() and get{eg,eu,g,p,u,pp}id() on alpha, which have
been missing traditionally.
- The s390 compat syscall handling is cleaned up to be more like
what we do on other architectures, while keeping the 31-bit
pointer extension. This was merged as a shared branch by the
s390 maintainers and is included here in order to base the other
patches on top.
- Add the separate ipc syscalls on all architectures that
traditionally only had sys_ipc(). This version is done without
support for IPC_OLD that is we have in sys_ipc. The
new semtimedop_time64 syscall will only be added here, not
in sys_ipc
- Add syscall numbers for a couple of syscalls that we probably
don't need everywhere, in particular pkey_* and rseq,
for the purpose of symmetry: if it's in asm-generic/unistd.h,
it makes sense to have it everywhere. I expect that any future
system calls will get assigned on all platforms together, even
when they appear to be specific to a single architecture.
- Prepare for having the same system call numbers for any future
calls. In combination with the generated tables, this hopefully
makes it easier to add new calls across all architectures
together.
All of the above are technically separate from the y2038 work,
but are done as preparation before we add the new 64-bit time_t
system calls everywhere, providing a common baseline set of system
calls.
I expect that glibc and other libraries that want to use 64-bit
time_t will require linux-5.1 kernel headers for building in
the future, and at a much later point may also require linux-5.1
or a later version as the minimum kernel at runtime. Having a
common baseline then allows the removal of many architecture or
kernel version specific workarounds.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'y2038-syscall-cleanup' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground into timers/2038
Pull preparatory work for y2038 changes from Arnd Bergmann:
System call unification and cleanup
The system call tables have diverged a bit over the years, and a number of
the recent additions never made it into all architectures, for one reason
or another.
This is an attempt to clean it up as far as we can without breaking
compatibility, doing a number of steps:
- Add system calls that have not yet been integrated into all architectures
but that we definitely want there. This includes {,f}statfs64() and
get{eg,eu,g,p,u,pp}id() on alpha, which have been missing traditionally.
- The s390 compat syscall handling is cleaned up to be more like what we
do on other architectures, while keeping the 31-bit pointer
extension. This was merged as a shared branch by the s390 maintainers
and is included here in order to base the other patches on top.
- Add the separate ipc syscalls on all architectures that traditionally
only had sys_ipc(). This version is done without support for IPC_OLD
that is we have in sys_ipc. The new semtimedop_time64 syscall will only
be added here, not in sys_ipc
- Add syscall numbers for a couple of syscalls that we probably don't need
everywhere, in particular pkey_* and rseq, for the purpose of symmetry:
if it's in asm-generic/unistd.h, it makes sense to have it everywhere. I
expect that any future system calls will get assigned on all platforms
together, even when they appear to be specific to a single architecture.
- Prepare for having the same system call numbers for any future calls. In
combination with the generated tables, this hopefully makes it easier to
add new calls across all architectures together.
All of the above are technically separate from the y2038 work, but are done
as preparation before we add the new 64-bit time_t system calls everywhere,
providing a common baseline set of system calls.
I expect that glibc and other libraries that want to use 64-bit time_t will
require linux-5.1 kernel headers for building in the future, and at a much
later point may also require linux-5.1 or a later version as the minimum
kernel at runtime. Having a common baseline then allows the removal of many
architecture or kernel version specific workarounds.
2019-02-10 20:44:19 +01:00
MIPS: BCM47XX: Setup struct device for the SoC
2019-01-09 13:21:02 -08:00
libceph: allow setting abort_on_full for rbd
2019-01-07 22:47:48 +01:00
clk: Tag clk core files with SPDX
2018-12-11 09:57:47 -08:00
dmaengine-4.21-rc1
2019-01-01 15:45:48 -08:00
Char/Misc driver patches for 4.21-rc1
2018-12-28 20:54:57 -08:00
This is the bulk of GPIO changes for the v4.21 kernel series:
2018-12-28 20:00:21 -08:00
irqchip: Add driver for Cirrus Logic Madera codecs
2018-12-18 14:06:56 +00:00
- New Device Support
2019-01-15 06:24:36 +12:00
4.21 merge window pull request
2018-12-28 14:57:10 -08:00
MMC core:
2018-12-28 16:52:18 -08:00
Char/Misc driver patches for 4.21-rc1
2018-12-28 20:54:57 -08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2018-12-20 18:20:26 -08:00
phy: fix build breakage: add PHY_MODE_SATA
2019-01-12 21:07:14 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2019-01-02 18:56:59 -08:00
power supply and reset changes for the v4.21 series
2018-12-28 20:22:45 -08:00
qed: Revert error handling changes.
2019-01-25 15:32:28 -08:00
lib/raid6: add option to skip algo benchmarking
2018-12-20 08:53:23 -08:00
Merge branch 'for-linus' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-4.21
2018-12-11 20:44:49 +00:00
oom, oom_reaper: do not enqueue same task twice
2019-02-01 15:46:23 -08:00
add helper functions to create and send commands to
2018-12-12 13:32:27 -08:00
MMC core:
2018-12-28 16:52:18 -08:00
NFS client updates for Linux 4.21
2019-01-02 16:35:23 -08:00
- Improve the over-current handling for imx
2018-12-17 13:58:44 +01:00
Device properties framework updates for 4.21-rc1
2018-12-25 15:01:46 -08:00
misc: cardreader: add new Alcor Micro Cardreader PCI driver
2018-12-17 08:26:24 +01:00
writeback: synchronize sync(2) against cgroup writeback membership switches
2019-01-22 14:39:38 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-01-05 13:18:59 -08:00
blkcg: clean up blkg_tryget_closest()
2018-12-21 08:47:05 -07:00
blk-mq-rdma: pass in queue map to blk_mq_rdma_map_queues
2018-12-13 09:59:08 +01:00
block: make request_to_qc_t public
2018-12-18 17:50:47 +01:00
block: Fix comment typo
2019-01-24 11:11:45 -07:00
SCSI misc on 20181224
2018-12-28 14:48:06 -08:00
bpf: pass struct btf pointer to the map_check_btf() callback
2018-12-12 15:33:33 -08:00
bpf: fix sanitation of alu op with pointer / scalar type from different paths
2019-01-05 21:32:38 -08:00
net: bpfilter: disallow to remove bpfilter module while being used
2019-01-11 18:05:41 -08:00
bpf: enable cgroup local storage map pretty print with kind_flag
2018-12-18 01:11:59 +01:00
build_bug.h: remove most of dummy BUILD_BUG_ON stubs for Sparse
2019-01-04 13:13:45 -08:00
Merge branches 'clk-imx7ulp', 'clk-imx6-fixes', 'clk-imx-fixes', 'clk-imx8qxp' and 'clk-imx8mq' into clk-next
2018-12-14 13:34:47 -08:00
y2038: signal: Add compat_sys_rt_sigtimedwait_time64
2018-12-18 16:13:04 +01:00
include/linux/compiler*.h: fix OPTIMIZER_HIDE_VAR
2019-01-09 11:36:41 +01:00
include/linux/compiler*.h changes:
2019-01-21 07:23:42 +13:00
include/linux/compiler*.h: fix OPTIMIZER_HIDE_VAR
2019-01-09 11:36:41 +01:00
include/linux/compiler*.h: fix OPTIMIZER_HIDE_VAR
2019-01-09 11:36:41 +01:00
kasan: add CONFIG_KASAN_GENERIC and CONFIG_KASAN_SW_TAGS
2018-12-28 12:11:43 -08:00
include/linux/compiler_types.h: don't pollute userspace with macro definitions
2018-12-14 16:57:16 +01:00
cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM
2019-01-30 19:27:00 +01:00
sched/topology: Make Energy Aware Scheduling depend on schedutil
2018-12-11 15:17:00 +01:00
cpuidle: Add 'above' and 'below' idle state metrics
2018-12-12 23:22:18 +01:00
cred: allow get_cred() and put_cred() to be given NULL.
2018-12-19 13:52:44 -05:00
crypto: skcipher - remove remnants of internal IV generators
2018-12-23 11:52:45 +08:00
fs/dcache: Track & report number of negative dentries
2019-01-30 11:02:11 -08:00
PM / devfreq: add devfreq_suspend/resume() functions
2018-12-11 11:40:13 +09:00
driver core: Introduce device_iommu_mapped() function
2018-12-17 10:38:43 +01:00
dma-mapping: implement dma_map_single_attrs using dma_map_page_attrs
2019-01-04 09:02:17 +01:00
dma-mapping: bypass indirect calls for dma-direct
2018-12-13 21:06:18 +01:00
dma-mapping: remove dma_zalloc_coherent()
2019-01-08 07:58:49 -05:00
dma-mapping: bypass indirect calls for dma-direct
2018-12-13 21:06:18 +01:00
drbd: introduce P_ZEROES (REQ_OP_WRITE_ZEROES on the "wire")
2018-12-20 09:51:31 -07:00
jump_label: move 'asm goto' support test to Kconfig
2019-01-06 09:46:51 +09:00
Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2019-01-02 09:43:14 -08:00
PM: Introduce an Energy Model management framework
2018-12-11 15:16:58 +01:00
fbdev: fbmem: convert CONFIG_FB_LOGO_CENTER into a cmd line option
2019-01-16 17:42:35 +01:00
binder: fix use-after-free due to ksys_close() during fdget()
2018-12-19 09:40:13 +01:00
bpf: enable access to ax register also from verifier rewrite
2019-01-02 16:01:24 -08:00
Fonts: New Terminus large console font
2018-12-19 10:42:08 +01:00
fs: Don't need to put list_lru into its own cacheline
2019-01-30 11:02:11 -08:00
Tracing changes for v4.21:
2018-12-31 11:46:59 -08:00
lib/genalloc.c: fix allocation of aligned buffer from non-aligned chunk
2019-01-04 13:13:46 -08:00
block: return just one value from part_in_flight
2018-12-10 08:30:38 -07:00
drbd: Avoid Clang warning about pointless switch statment
2018-12-20 09:51:31 -07:00
include/linux/gfp.h: fix typo
2018-12-28 12:11:52 -08:00
HID: debug: fix the ring buffer implementation
2019-01-29 12:09:11 +01:00
HID: core: simplify active collection tracking
2019-01-16 14:29:48 +01:00
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
mm/hmm: fix memremap.h, move dev_page_fault_t callback to hmm
2018-12-28 12:11:52 -08:00
mm, thp, proc: report THP eligibility for each vma
2018-12-28 12:11:50 -08:00
hwmon: Introduce SENSOR_DEVICE_ATTR_{RO, RW, WO} and variants
2018-12-16 15:13:22 -08:00
Drivers: hv: vmbus: Check for ring when getting debug info
2019-01-09 14:20:47 -05:00
ide: ensure atapi sense request aren't preempted
2019-01-31 08:25:09 -07:00
mac80211: update HE operation fields to D3.0
2018-12-18 14:19:00 +01:00
net: dev_is_mac_header_xmit() true for ARPHRD_RAWIP
2019-01-24 22:45:34 -08:00
x86/ima: retry detecting secure boot mode
2018-12-11 07:19:45 -05:00
net: unbreak CONFIG_RETPOLINE=n builds
2018-12-17 09:19:49 -08:00
iommu/vt-d: Remove deferred invalidation
2018-12-11 10:46:00 +01:00
genirq: Fix the kerneldoc comment for struct irq_affinity_desc
2019-01-18 00:18:45 +01:00
iommu: Consolitate ->add/remove_device() calls
2018-12-17 12:47:50 +01:00
genirq/core: Introduce struct irq_affinity_desc
2018-12-19 11:32:08 +01:00
irq/irq_sim: Store multiple interrupt offsets in a bitmap
2018-12-13 09:35:31 +00:00
genirq: Fix various typos in comments
2018-12-18 14:22:28 +01:00
genirq/core: Introduce struct irq_affinity_desc
2018-12-19 11:32:08 +01:00
jump_label: move 'asm goto' support test to Kconfig
2019-01-06 09:46:51 +09:00
jump_label: move 'asm goto' support test to Kconfig
2019-01-06 09:46:51 +09:00
kasan: add __must_check annotations to kasan hooks
2018-12-28 12:11:44 -08:00
kernel/sysctl: add panic_print into sysctl
2019-01-04 13:13:47 -08:00
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-12-26 17:03:51 -08:00
keys: Export lookup_user_key to external users
2018-12-13 17:54:12 -08:00
kgdb/treewide: constify struct kgdb_arch arch_kgdb_ops
2018-12-30 08:33:06 +00:00
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-12-26 17:03:51 -08:00
kvm: Change offset in kvm_write_guest_offset_cached to unsigned
2018-12-21 11:28:22 +01:00
LEDs for 4.21-rc1
2018-12-25 14:52:50 -08:00
scsi: flip the default on use_clustering
2018-12-18 23:13:12 -05:00
libnvdimm/security: Require nvdimm_security_setup_events() to succeed
2019-01-21 09:57:43 -08:00
lightnvm: disable interleaved metadata
2018-12-11 12:22:35 -07:00
locking/lockdep: Remove ::version from lock_class structure
2018-12-11 14:54:46 +01:00
LSM: new method: ->sb_add_mnt_opt()
2018-12-21 11:50:02 -05:00
mailbox: Support blocking transfers in atomic context
2018-12-21 22:31:26 -06:00
mailbox: Support blocking transfers in atomic context
2018-12-21 22:31:26 -06:00
mm/memblock.c: skip kmemleak for kasan_init()
2018-12-28 12:11:49 -08:00
mm, oom: add oom victim's memcg to the oom context information
2018-12-28 12:11:48 -08:00
mm/hotplug: invalid PFNs from pfn_to_online_page()
2019-02-01 15:46:23 -08:00
mm/hmm: fix memremap.h, move dev_page_fault_t callback to hmm
2018-12-28 12:11:52 -08:00
mm: migrate: drop unused argument of migrate_page_move_mapping()
2018-12-28 12:11:51 -08:00
fs: don't open code lru_to_page()
2019-01-04 13:13:48 -08:00
fs: don't open code lru_to_page()
2019-01-04 13:13:48 -08:00
mm: introduce common STRUCT_PAGE_MAX_SHIFT define
2018-12-14 15:05:45 -08:00
mm/mmu_notifier: use structure for invalidate_range_start/end calls v2
2018-12-28 12:11:50 -08:00
mm, page_alloc: do not wake kswapd with zone lock held
2019-01-08 17:15:11 -08:00
Add initial support for I3C along with 2 I3C master controller drivers.
2018-12-25 12:26:34 -08:00
x86, modpost: Replace last remnants of RETPOLINE with CONFIG_RETPOLINE
2019-01-09 10:35:56 +01:00
vfs: Separate changing mount flags full remount
2018-12-20 16:32:56 +00:00
genirq/core: Introduce struct irq_affinity_desc
2018-12-19 11:32:08 +01:00
net: rtnetlink: support for fdb get
2018-12-16 14:42:34 -08:00
jump_label: move 'asm goto' support test to Kconfig
2019-01-06 09:46:51 +09:00
net: convert bridge_nf to use skb extension infrastructure
2018-12-19 11:21:37 -08:00
jump_label: move 'asm goto' support test to Kconfig
2019-01-06 09:46:51 +09:00
linux/netlink.h: drop unnecessary extern prefix
2018-12-20 16:43:54 -08:00
NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'.
2018-12-19 13:52:46 -05:00
NFS/SUNRPC: don't lookup machine credential until rpcauth_bindcred().
2018-12-19 13:52:45 -05:00
NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'.
2018-12-19 13:52:46 -05:00
nvme-tcp: Add protocol header
2018-12-13 09:58:57 +01:00
nvme: add error log page slot definition
2018-12-13 09:59:01 +01:00
of: Remove struct device_node.type pointer
2019-01-10 16:24:44 -06:00
mm, oom: reorganize the oom report in dump_header
2018-12-28 12:11:48 -08:00
kasan, mm, arm64: tag non slab memory allocated via pagealloc
2018-12-28 12:11:44 -08:00
/proc/kpagecount: return 0 for special pages that are never mapped
2018-12-28 12:11:50 -08:00
mm: only report isolation failures when offlining memory
2018-12-28 12:11:46 -08:00
mm/pageblock: throw compile error if pageblock_bits cannot hold MIGRATE_TYPES
2018-12-28 12:11:51 -08:00
mm: put_and_wait_on_page_locked() while page is migrated
2018-12-28 12:11:48 -08:00
cross-tree: phase out dma_zalloc_coherent()
2019-01-08 07:58:37 -05:00
pci-v4.21-changes
2019-01-05 17:57:34 -08:00
pci-v4.21-changes
2019-01-05 17:57:34 -08:00
perf/core: Declare the __percpu attribute on non-deref types
2018-12-11 15:01:48 +01:00
net: phy: phy driver features are mandatory
2019-01-19 10:03:08 -08:00
Fixed PHY: Add fixed_phy_change_carrier()
2018-12-17 11:24:32 -08:00
memory: pl353: Add driver for arm pl353 static memory controller
2018-12-13 16:07:04 +01:00
PM-runtime: Switch autosuspend over to using hrtimers
2018-12-19 10:31:50 +01:00
PM / Domains: Propagate performance state updates
2018-12-14 16:28:18 +05:30
cpufreq: scpi/scmi: Fix freeing of dynamic OPPs
2019-01-04 12:19:40 +01:00
PM-runtime: Fix deadlock with ktime_get()
2019-01-30 22:49:06 +01:00
power: supply: core: add support for custom sysfs attributes
2018-12-13 00:15:06 +01:00
include/linux/printk.h: drop silly "static inline asmlinkage" from dump_stack()
2019-01-04 13:13:46 -08:00
ptr_ring: wrap back ->producer in __ptr_ring_swap_queue()
2019-01-01 11:58:33 -08:00
pwm: Drop legacy wrapper for changing polarity
2018-12-12 11:55:42 +01:00
qcom-scm: Include <linux/err.h> header
2019-01-10 17:04:45 -06:00
regmap: irq: add an option to clear status registers on unmask
2018-12-19 18:38:13 +00:00
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
reset: Add reset_control_get_count()
2019-01-07 16:38:26 +01:00
rtc: enforce rtc_timer_init private_data type
2018-12-18 22:53:29 +01:00
sbitmap: add helpers for add/del wait queue handling
2018-12-20 12:17:05 -07:00
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-02-03 09:08:12 -08:00
seccomp: add a return code to trap to userspace
2018-12-11 16:28:41 -08:00
LSM: new method: ->sb_add_mnt_opt()
2018-12-21 11:50:02 -05:00
serial: 8250: Rate limit serial port rx interrupts during input overruns
2018-12-17 16:02:57 +01:00
net: Fix usage of pskb_trim_rcsum
2019-01-18 14:05:14 -08:00
bpf: sk_msg, fix socket data_ready events
2018-12-20 23:47:09 +01:00
A fairly normal cycle for documentation stuff. We have a new
2018-12-29 11:21:49 -08:00
mm: move obj_to_index to include/linux/slab_def.h
2018-12-28 12:11:44 -08:00
y2038: more syscalls and cleanups
2018-12-28 12:45:04 -08:00
string.h: Add str_has_prefix() helper function
2018-12-22 22:50:29 -05:00
mm/swap: use nr_node_ids for avail_lists in swap_info_struct
2018-12-28 12:11:47 -08:00
dma-direct: merge swiotlb_dma_ops into the dma_direct code
2018-12-13 21:06:17 +01:00
switchtec: Add MRPC DMA mode support
2018-12-13 09:03:32 -06:00
ipc: rename old-style shmctl/semctl/msgctl syscalls
2019-01-25 17:22:50 +01:00
timekeeping: remove timespec_add/timespec_del
2018-12-18 16:13:05 +01:00
timekeeping: remove obsolete time accessors
2018-12-18 16:13:05 +01:00
timekeeping: remove obsolete time accessors
2018-12-18 16:13:05 +01:00
bpf: support raw tracepoints in modules
2018-12-18 14:08:12 -08:00
Merge 4.20-rc6 into tty-next
2018-12-10 10:17:45 +01:00
make 'user_access_begin()' do 'access_ok()'
2019-01-04 12:56:09 -08:00
iov_iter: introduce hash_and_copy_to_iter helper
2018-12-13 09:58:54 +01:00
umh: add exit routine for UMH process
2019-01-11 18:05:40 -08:00
virtio: document virtio_config_ops restrictions
2019-01-14 20:15:17 -05:00
include/linux/vmstat.h: remove unused page state adjustment macro
2018-12-28 12:11:51 -08:00
Watchdog: remove outdated comment
2018-12-22 12:15:29 +01:00
XArray: Fix an arithmetic error in xa_is_err
2019-01-17 07:19:42 -05:00
xxHash: create arch dependent 32/64-bit xxhash()
2018-12-28 12:11:46 -08:00
