freebsd-skq/sys/kern
Rick Macklem 15930ae180 Update copy_file_range(2) to be Linux5 compatible.
The current linux man page and testing done on a fairly recent linux5.n
kernel have identified two changes to the semantics of the linux
copy_file_range system call.
Since the copy_file_range(2) system call is intended to be linux compatible
and is only currently in head/current and not used by any commands,
it seems appropriate to update the system call to be compatible with
the current linux one.
The old linux man page stated that, if the
offset + len exceeded file_size for the input file, EINVAL should be returned.
Now, the semantics is to copy up to at most file_size bytes and return that
number of bytes copied. If the offset is at or beyond file_size, a return
of 0 bytes is done.
This patch modifies copy_file_range(2) to be linux compatible for this
semantic change.
A separate patch will change copy_file_range(2) for the other semantic
change, which allows the infd and outfd to refer to the same file, so
long as the byte ranges do not overlap.
2019-11-08 23:39:17 +00:00
..
bus_if.m Add necessary bits for Linux KPI to work correctly on powerpc 2019-08-04 19:28:10 +00:00
capabilities.conf Add a shm_open2 syscall to support upcoming memfd_create 2019-09-25 17:59:15 +00:00
clock_if.m
cpufreq_if.m
device_if.m
genassym.sh
genoffset.c Merge td_epochnest with td_no_sleeping. 2019-10-29 17:28:25 +00:00
genoffset.sh expose thread_lite definition to tied modules 2018-07-03 02:50:07 +00:00
imgact_aout.c Switch to use shared vnode locks for text files during image activation. 2019-05-05 11:20:43 +00:00
imgact_binmisc.c Add helper functions to copy strings into struct image_args. 2018-11-29 21:00:56 +00:00
imgact_elf32.c
imgact_elf64.c
imgact_elf.c avoid kernel stack data leak in core dump thrmisc note 2019-10-31 20:42:36 +00:00
imgact_shell.c Add helper functions to copy strings into struct image_args. 2018-11-29 21:00:56 +00:00
init_main.c Remove epoch tracker from struct thread. It was an ugly crutch to emulate 2019-10-21 18:19:32 +00:00
init_sysent.c sysent: regenerate after r352747. 2019-09-26 15:41:10 +00:00
kern_acct.c
kern_alq.c
kern_clock.c Update td_runtime of running thread on each statclock(). 2019-06-14 01:09:10 +00:00
kern_clocksource.c Rename hardclock_cnt() to hardclock() and remove the old implementation. 2018-09-06 02:10:59 +00:00
kern_condvar.c
kern_conf.c Remove the remnants of SI_CHEAPCLONE 2019-10-05 21:52:06 +00:00
kern_cons.c Replace ttyprintf with sbuf_printf and tty drain routine 2018-10-20 18:31:36 +00:00
kern_context.c Remove superfluous bzero in getcontext/swapcontext/sendsig 2018-11-26 20:56:05 +00:00
kern_cpu.c kern_cpu: When adding abs frequency allow for unordered insertion 2018-07-19 11:28:14 +00:00
kern_cpuset.c Remove a redundant NULL pointer check in cpuset_modify_domain(). 2019-09-12 16:47:38 +00:00
kern_ctf.c Convert DDB_CTF to use newer version of ZLIB. 2019-08-08 07:27:49 +00:00
kern_descrip.c Disallow fcntl(F_READAHEAD) when the vnode is not a regular file. 2019-10-02 15:45:49 +00:00
kern_dtrace.c systrace: track it like sdt probes 2018-04-27 15:16:34 +00:00
kern_dump.c [PPC64] Initial kernel minidump implementation 2019-10-14 13:04:04 +00:00
kern_environment.c Follow up r352244: kenv: tighten up assertions 2019-09-12 14:34:46 +00:00
kern_et.c
kern_event.c Avoid relying on header pollution from sys/refcount.h. 2019-07-29 20:26:01 +00:00
kern_exec.c (4/6) Protect page valid with the busy lock. 2019-10-15 03:45:41 +00:00
kern_exit.c proc: clear pid bitmap entry after dropping proctree lock 2019-09-02 12:46:43 +00:00
kern_fail.c
kern_ffclock.c
kern_fork.c rfork(2): add RFSPAWN flag 2019-09-25 19:20:41 +00:00
kern_hhook.c
kern_idle.c
kern_intr.c Disable intr_storm_threshold mechanism by default 2019-05-24 22:33:14 +00:00
kern_jail.c Replace hand-rolled unrefs if > 1 with refcount_release_if_not_last 2018-12-07 16:11:45 +00:00
kern_kcov.c Change synchonization rules for vm_page reference counting. 2019-09-09 21:32:42 +00:00
kern_khelp.c
kern_kthread.c proc: always store parent pid in p_oppid 2018-11-16 17:07:54 +00:00
kern_ktr.c Drop "All rights reserved" from my copyright statements. 2019-03-06 22:11:45 +00:00
kern_ktrace.c Reduce overhead of ktrace checks in the common case. 2018-05-09 00:00:47 +00:00
kern_linker.c Add flags variants to linker_files / stack(9) symbol resolution 2018-10-20 18:08:43 +00:00
kern_lock.c Add lockmgr(9) probes to the lockstat DTrace provider. 2019-08-21 23:43:58 +00:00
kern_lockf.c lockf: annotate LOCKF_DEBUG only var 2018-05-19 05:04:38 +00:00
kern_lockstat.c Add lockmgr(9) probes to the lockstat DTrace provider. 2019-08-21 23:43:58 +00:00
kern_loginclass.c Replace hand-rolled unrefs if > 1 with refcount_release_if_not_last 2018-12-07 16:11:45 +00:00
kern_malloc.c Merge td_epochnest with td_no_sleeping. 2019-10-29 17:28:25 +00:00
kern_mbuf.c Split out a more generic debugnet(4) from netdump(4) 2019-10-17 16:23:03 +00:00
kern_mib.c Add missing include of sys/boot.h 2019-06-24 20:52:21 +00:00
kern_module.c Use NULL for SYSINIT's last arg, which is a pointer type 2018-05-18 17:58:09 +00:00
kern_mtxpool.c Increase MTX_POOL_SLEEP_SIZE from 128 to 1024. 2018-12-24 23:52:35 +00:00
kern_mutex.c INVARIANTS: treat LA_LOCKED as the same of LA_XLOCKED in mtx_assert. 2019-08-23 06:39:40 +00:00
kern_ntptime.c Clear pad bytes in the struct exported by kern.ntp_pll.gettime. 2018-11-20 20:32:10 +00:00
kern_osd.c
kern_physio.c Allocate pager bufs from UMA instead of 80-ish mutex protected linked list. 2019-01-15 01:02:16 +00:00
kern_pmc.c Add malloc_domainset(9) and _domainset variants to other allocator KPIs. 2018-10-30 18:26:34 +00:00
kern_poll.c
kern_priv.c Check for probes enabled in priv_check_cred before evaluting the error. 2018-12-19 23:28:29 +00:00
kern_proc.c Remove page locking from pmap_mincore(). 2019-10-16 22:03:27 +00:00
kern_procctl.c Add procctl(PROC_STACKGAP_CTL) 2019-09-03 18:56:25 +00:00
kern_prot.c Only enable COMPAT_43 changes for syscalls ABI for a.out processes. 2019-08-11 19:16:07 +00:00
kern_racct.c proc: eliminate the zombproc list 2019-08-28 16:18:23 +00:00
kern_rangelock.c rangelock: add rangelock_cookie_assert 2019-09-15 02:59:53 +00:00
kern_rctl.c call racct_proc_ucred_changed() under the proc lock 2018-04-20 13:08:04 +00:00
kern_resource.c Fix a typo introduced in r344133 2019-03-18 12:41:42 +00:00
kern_rmlock.c Make no assertions about lock state when the scheduler is stopped. 2018-11-13 20:48:05 +00:00
kern_rwlock.c Drop "All rights reserved" from my copyright statements. 2019-03-06 22:11:45 +00:00
kern_sdt.c
kern_sema.c
kern_sendfile.c If vm_pager_get_pages_async() returns an error synchronously we leak wired 2019-11-06 23:45:43 +00:00
kern_sharedpage.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
kern_shutdown.c debug,kassert.warnings is a statistic, not a tunable 2019-10-21 12:21:56 +00:00
kern_sig.c rfork(2): add RFSPAWN flag 2019-09-25 19:20:41 +00:00
kern_switch.c make critical_{enter, exit} inline 2018-07-03 01:55:09 +00:00
kern_sx.c sx: retire SX_NOADAPTIVE 2018-12-05 16:43:03 +00:00
kern_synch.c Merge td_epochnest with td_no_sleeping. 2019-10-29 17:28:25 +00:00
kern_syscalls.c fix a typo resulting in a wrong variable in kern_syscall_deregister 2018-08-02 09:41:55 +00:00
kern_sysctl.c sysctl: use names instead of magic numbers. 2019-09-18 16:13:10 +00:00
kern_tc.c Initialize timehands linkage much earlier. 2019-09-09 12:42:48 +00:00
kern_thr.c Don't acquire evclass_lock with a spinlock held 2018-07-11 19:38:42 +00:00
kern_thread.c amd64: move pcb out of kstack to struct thread. 2019-10-25 20:09:42 +00:00
kern_time.c Disallow excessively small times of day in clock_settime(2). 2019-05-03 21:26:44 +00:00
kern_timeout.c Allocate callout wheel from the respective memory domain. 2019-09-21 15:38:08 +00:00
kern_tslog.c
kern_ubsan.c Teach the kernel KUBSAN runtime about alignment_assumption 2019-05-28 09:12:15 +00:00
kern_umtx.c Make umtxq_check_susp() to correctly handle thread exit requests. 2019-08-01 14:34:27 +00:00
kern_uuid.c Use sbuf_cat() in GEOM confxml generation. 2019-06-19 15:36:02 +00:00
kern_xxx.c Normalize COMPAT_43 syscall declarations. 2018-12-04 16:48:47 +00:00
ksched.c
link_elf_obj.c Apply mapping protections to preloaded kernel modules on amd64. 2019-10-18 13:56:45 +00:00
link_elf.c Apply mapping protections to preloaded kernel modules on amd64. 2019-10-18 13:56:45 +00:00
linker_if.m
Make.tags.inc Remove a couple of harmless stray references to nandfs. 2019-06-25 16:39:25 +00:00
Makefile Don't use an .OBJDIR for 'make sysent'. 2018-01-29 19:14:15 +00:00
makesyscalls.sh Restore the ability to set capenabled directly in syscalls.conf. 2019-09-30 20:58:29 +00:00
md4c.c
md5c.c
msi_if.m
p1003_1b.c
pic_if.m
posix4_mib.c Use NULL for SYSINIT's last arg, which is a pointer type 2018-05-18 17:58:09 +00:00
sched_4bsd.c Reduce umtx-related work on exec and exit 2019-05-08 16:30:38 +00:00
sched_ule.c Microoptimize sched_pickcpu() CPU affinity on SMT. 2019-09-26 00:35:06 +00:00
serdev_if.m
stack_protector.c Revert r346292 (permit_nonrandom_stackcookies) 2019-05-13 23:37:44 +00:00
subr_acl_nfs4.c Remove unused argument to priv_check_cred. 2018-12-11 19:32:16 +00:00
subr_acl_posix1e.c Remove unused argument to priv_check_cred. 2018-12-11 19:32:16 +00:00
subr_autoconf.c
subr_blist.c Address problems in blist_alloc introduced in r349777. The swap block allocator could become corrupted 2019-07-11 20:52:39 +00:00
subr_boot.c When parsing command line stuff, treat tabs and spaces the same. 2019-04-18 22:52:12 +00:00
subr_bufring.c
subr_bus_dma.c Add an external mbuf buffer type that holds multiple unmapped pages. 2019-06-29 00:48:33 +00:00
subr_bus.c Allocate device softc from the device domain. 2019-10-12 19:03:07 +00:00
subr_busdma_bufalloc.c Add malloc_domainset(9) and _domainset variants to other allocator KPIs. 2018-10-30 18:26:34 +00:00
subr_capability.c kern_sendit: use pre-initialized rights 2018-05-23 01:48:09 +00:00
subr_clock.c Kill tz_minuteswest and tz_dsttime. 2019-03-12 04:49:47 +00:00
subr_compressor.c GZIO: Update to use zlib 1.2.11. 2019-08-25 07:50:44 +00:00
subr_counter.c Fix pre-SI_SUB_CPU initialization of per-CPU counters. 2018-07-10 00:18:12 +00:00
subr_coverage.c Extract the coverage sanitizer KPI to a new file. 2019-01-29 11:04:17 +00:00
subr_devmap.c Generalize ARM specific comments in devmap 2019-10-15 23:21:52 +00:00
subr_devstat.c devstat(9): Constify function parameters that can be const 2018-08-23 01:42:45 +00:00
subr_disk.c Fix botched merge with 355066 2019-03-12 05:10:41 +00:00
subr_dummy_vdso_tc.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
subr_early.c Add a file missed in r339321 2018-10-12 00:32:45 +00:00
subr_epoch.c Merge td_epochnest with td_no_sleeping. 2019-10-29 17:28:25 +00:00
subr_eventhandler.c Include ktr.h in more compilation units 2019-05-21 20:38:48 +00:00
subr_fattime.c Use const pointers for input data not modified by clock utility functions. 2018-02-06 22:17:01 +00:00
subr_filter.c This commit adds BBR (Bottleneck Bandwidth and RTT) congestion control. This 2019-09-24 18:18:11 +00:00
subr_firmware.c
subr_gtaskqueue.c Some more taskqueue optimizations. 2019-11-01 22:49:44 +00:00
subr_hash.c Unsign some values related to allocation. 2018-01-22 02:08:10 +00:00
subr_hints.c res_find: Fix fallback logic 2018-08-18 19:45:56 +00:00
subr_intr.c Extract eventfilter declarations to sys/_eventfilter.h 2019-05-20 00:38:23 +00:00
subr_kdb.c Implement NetGDB(4) 2019-10-17 21:33:01 +00:00
subr_kobj.c Prevent some kobj memory allocation failures from panicking the system. 2019-01-31 22:27:39 +00:00
subr_lock.c lockprof: move per-cpu data to dpcpu 2019-09-22 20:44:24 +00:00
subr_log.c
subr_mchain.c
subr_module.c Have preload_delete_name() free pages backing preloaded data. 2018-07-19 20:00:28 +00:00
subr_msgbuf.c msgbuf: Light detailing (const'ify and bool'itize) 2018-08-09 17:42:27 +00:00
subr_param.c riscv: restore default HZ=1000, keep QEMU at HZ=100 2019-09-07 05:13:31 +00:00
subr_pcpu.c vfs: manage mnt_ref with atomics 2019-09-16 21:31:02 +00:00
subr_pctrie.c kern/subr_pctrie: Fix mismatched signedness in assertion comparison 2019-04-06 21:56:24 +00:00
subr_pidctrl.c When pidctrl_daemon() is called multiple times within an interval, it 2018-06-07 07:48:50 +00:00
subr_power.c Extract eventfilter declarations to sys/_eventfilter.h 2019-05-20 00:38:23 +00:00
subr_prf.c device_printf: Use sbuf for more coherent prints on SMP 2019-05-07 17:47:20 +00:00
subr_prof.c ANSIfy sys/kern 2018-06-01 13:26:45 +00:00
subr_rangeset.c Implement rangesets. 2019-02-20 09:38:19 +00:00
subr_rman.c add support for marking interrupt handlers as suspended 2018-12-17 17:11:00 +00:00
subr_rtc.c Improve error messages from clock_if.m method failures. 2018-09-02 20:17:51 +00:00
subr_sbuf.c sbuf(9): Add sbuf_nl_terminate() API 2019-08-07 19:27:14 +00:00
subr_scanf.c Add support for 'j', 't' and 'z' flags to kernel sscanf(). 2019-08-16 19:46:22 +00:00
subr_sfbuf.c Remove SFBUF_OPTIONAL_DIRECT_MAP and such hacks, replacing them across the 2018-01-19 17:46:31 +00:00
subr_sglist.c Add an external mbuf buffer type that holds multiple unmapped pages. 2019-06-29 00:48:33 +00:00
subr_sleepqueue.c Merge td_epochnest with td_no_sleeping. 2019-10-29 17:28:25 +00:00
subr_smp.c x86: Implement MWAIT support for stopping a CPU 2019-05-04 20:34:26 +00:00
subr_stack.c Add debugging facility EPOCH_TRACE that checks that epochs entered are 2019-09-25 18:26:31 +00:00
subr_stats.c libstats: Improve ABI assertion. 2019-11-06 19:44:44 +00:00
subr_syscall.c Don't pass error from syscallenter() to syscallret(). 2019-07-15 21:25:16 +00:00
subr_taskqueue.c Some more taskqueue optimizations. 2019-11-01 22:49:44 +00:00
subr_terminal.c kernel terminal should initialize fg and bg variables before calling TUNABLE_INT_FETCH 2019-09-26 07:19:26 +00:00
subr_trap.c Merge td_epochnest with td_no_sleeping. 2019-10-29 17:28:25 +00:00
subr_turnstile.c Fix the turnstile_lock() KPI. 2019-07-24 23:04:59 +00:00
subr_uio.c simplify control flow so that gcc knows we never pass save to curthread_pflags_restore 2018-05-19 04:04:44 +00:00
subr_unit.c Implement unr64 2018-11-20 14:58:41 +00:00
subr_vmem.c Don't free the cursor boundary tag during vmem_destroy(). 2019-10-09 21:20:39 +00:00
subr_witness.c Only check the blessings table for known LORs. 2019-08-02 18:01:47 +00:00
sys_capability.c Let kern.trap_enotcap be set as a tunable. 2018-12-06 17:29:37 +00:00
sys_generic.c devfs: plug redundant bwillwrite avoidance 2019-10-05 17:44:33 +00:00
sys_getrandom.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
sys_pipe.c Modify pipe_poll() to properly check for pending direct writes. 2019-08-21 19:35:04 +00:00
sys_procdesc.c procdesc: fix the function name 2019-08-05 20:31:17 +00:00
sys_process.c Define macro VM_MAP_ENTRY_FOREACH for enumerating the entries in a vm_map. 2019-10-08 07:14:21 +00:00
sys_socket.c Ensure that the vnet is set when calling pru_sockaddr() and 2018-01-11 20:26:17 +00:00
syscalls.c sysent: regenerate after r352747. 2019-09-26 15:41:10 +00:00
syscalls.master sysalls.master: remove superfluous ellipsis in comment 2019-10-01 17:05:21 +00:00
systrace_args.c sysent: regenerate after r352747. 2019-09-26 15:41:10 +00:00
sysv_ipc.c sysv: get rid of fork/exit hooks if the code is compiled in 2019-05-04 19:05:30 +00:00
sysv_msg.c ANSIfy sys/kern 2018-06-01 13:26:45 +00:00
sysv_sem.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
sysv_shm.c sysv: get rid of fork/exit hooks if the code is compiled in 2019-05-04 19:05:30 +00:00
tty_compat.c Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +00:00
tty_info.c Avoid fixing the tty_info() buffer size in tty.h. 2018-11-06 23:41:44 +00:00
tty_inq.c tty: use __unused annotation instead to silence warnings 2018-05-19 04:48:26 +00:00
tty_outq.c tty: use __unused annotation instead to silence warnings 2018-05-19 04:48:26 +00:00
tty_pts.c Move 32-bit compat support for FIODGNAME to the right place. 2018-10-26 17:59:25 +00:00
tty_tty.c Extract eventfilter declarations to sys/_eventfilter.h 2019-05-20 00:38:23 +00:00
tty_ttydisc.c Replace ttyprintf with sbuf_printf and tty drain routine 2018-10-20 18:31:36 +00:00
tty.c Defer funsetown() calls for a TTY to tty_rel_free(). 2019-07-04 15:42:02 +00:00
uipc_accf.c
uipc_debug.c Load balance sockets with new SO_REUSEPORT_LB option. 2018-06-06 15:45:57 +00:00
uipc_domain.c Remove pfctlinput2(). It came from KAME and had never ever been in use. 2019-10-15 15:40:03 +00:00
uipc_ktls.c Mechanically convert INP_INFO_RLOCK() to NET_EPOCH_ENTER(). 2019-11-07 00:08:34 +00:00
uipc_mbuf2.c m_pulldown(): Change an if () panic() into a KASSERT(). 2019-11-06 22:40:19 +00:00
uipc_mbuf.c kTLS: Fix a bug where we would not encrypt anon data inplace. 2019-09-27 20:08:19 +00:00
uipc_mbufhash.c
uipc_mqueue.c mqueuefs: fix compat32 struct file leak 2019-08-20 17:44:03 +00:00
uipc_sem.c Remove unused argument to priv_check_cred. 2018-12-11 19:32:16 +00:00
uipc_shm.c (4/6) Protect page valid with the busy lock. 2019-10-15 03:45:41 +00:00
uipc_sockbuf.c Add kernel-side support for in-kernel TLS. 2019-08-27 00:01:56 +00:00
uipc_socket.c Cleanup unneeded includes that crept in with r353292. 2019-10-09 16:59:42 +00:00
uipc_syscalls.c Only enable COMPAT_43 changes for syscalls ABI for a.out processes. 2019-08-11 19:16:07 +00:00
uipc_usrreq.c Fix handling of empty SCM_RIGHTS messages. 2019-10-08 23:34:48 +00:00
vfs_acl.c Reduce duplication in __acl_*_(file|link). 2018-02-15 21:24:43 +00:00
vfs_aio.c Allocate pager bufs from UMA instead of 80-ish mutex protected linked list. 2019-01-15 01:02:16 +00:00
vfs_bio.c Drop the object lock in vfs_bio and cluster where it is now safe to do so. 2019-10-29 20:37:59 +00:00
vfs_cache.c cache: decrease ncnegfactor to 5 2019-09-27 19:14:03 +00:00
vfs_cluster.c Drop the object lock in vfs_bio and cluster where it is now safe to do so. 2019-10-29 20:37:59 +00:00
vfs_default.c vfs: apply r352437 to the fast path as well 2019-09-17 15:53:40 +00:00
vfs_export.c Ensure that directory entry padding bytes are zeroed. 2018-11-23 22:24:59 +00:00
vfs_extattr.c extattr_list_vp: Narrow locked section somewhat 2019-02-05 04:47:21 +00:00
vfs_hash.c vfs: implement usecount implying holdcnt 2019-09-03 15:42:11 +00:00
vfs_init.c vfs: add optional root vnode caching 2019-10-06 22:14:32 +00:00
vfs_lookup.c NDFREE(): Fix unlocking for LOCKPARENT|LOCKLEAF and ndp->ni_dvp == ndp->ni_vp. 2019-05-21 15:12:13 +00:00
vfs_mount.c vfs: add optional root vnode caching 2019-10-06 22:14:32 +00:00
vfs_mountroot.c mountroot: run statfs after mounting devfs 2019-10-11 17:04:38 +00:00
vfs_subr.c Replace OBJ_MIGHTBEDIRTY with a system using atomics. Remove the TMPFS_DIRTY 2019-10-29 21:06:34 +00:00
vfs_syscalls.c vfs: stop always overwriting ->mnt_stat in VFS_STATFS 2019-08-18 18:40:12 +00:00
vfs_vnops.c Update copy_file_range(2) to be Linux5 compatible. 2019-11-08 23:39:17 +00:00
vnode_if.src vfs: add VOP_NEED_INACTIVE 2019-08-28 20:34:24 +00:00