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8f01bee46b
freebsd-nq/sys/kern
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Konstantin Belousov 8f01bee46b Revive the check, disabled in r197963. 
Despite the implication (process has pending signals -> the current
thread marked for AST and has TDF_NEEDSIGCHK set) is not true due to
other thread might manipulate its signal blocking mask, it should still
hold for the single-threaded processes.  Enable check for the condition
for single-threaded case, and replicate it from userret() to ast() as
well, where we check that ast indeed has no signal to deliver.

Note that the check is under DIAGNOSTIC, it is not enabled for INVARIANTS
but !DIAGNOSTIC since it imposes too heavy-weight locking for day-to-day
used debugging kernel.

Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2016-07-12 03:53:15 +00:00
..
bus_if.m (1) Add a new bus method to get a mapping data for an interrupt. 2016-06-05 16:07:57 +00:00
capabilities.conf Add futimens and utimensat system calls. 2015-01-23 21:07:08 +00:00
clock_if.m
cpufreq_if.m
device_if.m Import the 'iflib' API library for network drivers. From the author: 2016-05-18 04:35:58 +00:00
genassym.sh genassym.sh: call nm(1) with NMFLAGS. 2015-08-14 22:57:13 +00:00
imgact_aout.c Implement vsyscall hack. Prior to 2.13 glibc uses vsyscall 2016-01-09 20:18:53 +00:00
imgact_binmisc.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
imgact_elf32.c
imgact_elf64.c
imgact_elf.c add description for debug.elf{32,64}_legacy_coredump sysctl 2016-07-05 14:46:06 +00:00
imgact_gzip.c Implement lockless resource limits. 2015-06-10 10:48:12 +00:00
imgact_shell.c Allow multiple image activators to run on the same execution by changing 2014-09-04 21:31:25 +00:00
inflate.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
init_main.c Remove assumptions in MI code that the BSP is CPU 0. 2016-07-11 21:25:28 +00:00
init_sysent.c Do allow auditing of read(2) and write(2) system calls, by assigning 2016-07-10 13:42:33 +00:00
kern_acct.c
kern_alq.c Use SI_SUB_LAST instead of SI_SUB_SMP as the "catch-all" subsystem. 2016-03-11 23:18:06 +00:00
kern_clock.c Do not acquire the thread lock in hardclock_cnt() unless needed. 2016-05-18 03:55:54 +00:00
kern_clocksource.c Add an EARLY_AP_STARTUP option to start APs earlier during boot. 2016-05-14 18:22:52 +00:00
kern_condvar.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
kern_conf.c Provide yet another KPI for cdev creation, make_dev_s(9). 2016-01-07 20:08:02 +00:00
kern_cons.c CALLOUT_MPSAFE has lost its meaning since r141428, i.e., for more than ten 2015-05-22 17:05:21 +00:00
kern_context.c
kern_cpu.c Add an EARLY_AP_STARTUP option to start APs earlier during boot. 2016-05-14 18:22:52 +00:00
kern_cpuset.c Add more fine-grained kernel options for NUMA support. 2016-04-09 13:58:04 +00:00
kern_ctf.c Don't specify a resid parameter if we're just going to ignore it. Instead, 2015-02-20 20:49:00 +00:00
kern_descrip.c Audit file-descriptor arguments to I/O system calls such as 2016-07-10 08:04:02 +00:00
kern_dtrace.c
kern_dump.c kernel: use our nitems() macro when it is available through param.h. 2016-04-19 23:48:27 +00:00
kern_environment.c Create wrappers for uint64_t and int64_t for the tunables. While not 2016-04-15 03:09:55 +00:00
kern_et.c Trivial change / forced-commit to document prior change that slipped in 2015-03-16 19:29:19 +00:00
kern_event.c When a process knote was attached to the process which is already exiting, 2016-07-01 20:11:28 +00:00
kern_exec.c When filt_proc() removes event from the knlist due to the process 2016-06-27 21:52:17 +00:00
kern_exit.c When filt_proc() removes event from the knlist due to the process 2016-06-27 21:52:17 +00:00
kern_fail.c Fix some cosmetic issues in kern_fail.c omitted from r296927. 2016-06-09 13:17:08 +00:00
kern_ffclock.c kernel: use our nitems() macro when it is available through param.h. 2016-04-19 23:48:27 +00:00
kern_fork.c When filt_proc() removes event from the knlist due to the process 2016-06-27 21:52:17 +00:00
kern_gzio.c Move zlib.c from net to libkern. 2015-04-22 14:38:58 +00:00
kern_hhook.c Get closer to a VIMAGE network stack teardown from top to bottom rather 2016-06-21 13:48:49 +00:00
kern_idle.c
kern_intr.c The part of r285680 which removed release semantic for two stores to 2015-07-21 14:39:34 +00:00
kern_jail.c Fix a vnode leak when giving a child jail a too-long path when 2016-06-09 21:59:11 +00:00
kern_khelp.c
kern_kthread.c Update comments for the MD functions managing contexts for new 2016-06-16 12:05:44 +00:00
kern_ktr.c Fix the logic in the ddb command 'show ktr /a'. Prior to r118269 it would 2016-01-31 17:32:20 +00:00
kern_ktrace.c kernel: use our nitems() macro when it is available through param.h. 2016-04-19 23:48:27 +00:00
kern_linker.c Add DDB command "kldstat" 2016-06-09 18:27:41 +00:00
kern_lock.c Microoptimize locking primitives by avoiding unnecessary atomic ops. 2016-06-01 18:32:20 +00:00
kern_lockf.c When sleeping waiting for either local or remote advisory lock, 2016-06-26 20:08:42 +00:00
kern_lockstat.c Consistently use a reader/writer flag for lockstat probes in rwlock(9) and 2015-07-19 22:24:33 +00:00
kern_loginclass.c Speed up rctl operation with large rulesets, by holding the lock 2015-11-15 12:10:51 +00:00
kern_malloc.c Move IPv6 malloc tag definitions into the IPv6 code. 2016-05-20 04:45:08 +00:00
kern_mbuf.c Import the 'iflib' API library for network drivers. From the author: 2016-05-18 04:35:58 +00:00
kern_mib.c Fix build after r295934. 2016-02-23 23:37:10 +00:00
kern_module.c Provide better debug message on kernel module name clash. 2015-10-10 09:21:55 +00:00
kern_mtxpool.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
kern_mutex.c Ensure that spinlock sections are balanced even after a panic. 2016-07-05 17:59:04 +00:00
kern_ntptime.c Currently the ntptime code and resettodr() are Giant-locked. In 2016-06-28 16:43:23 +00:00
kern_numa.c Add an initial NUMA affinity/policy configuration for threads and processes. 2015-07-11 15:21:37 +00:00
kern_osd.c osd(9): Change array pointer to array pointer type from void* 2016-04-26 19:57:35 +00:00
kern_physio.c Add four new RCTL resources - readbps, readiops, writebps and writeiops, 2016-04-07 04:23:25 +00:00
kern_pmc.c
kern_poll.c When a kernel has DEVICE_POLLING turned on but no drivers have 2015-04-14 14:22:34 +00:00
kern_priv.c
kern_proc.c Get rid of struct proc p_sched and struct thread td_sched pointers. 2016-06-05 17:04:03 +00:00
kern_procctl.c If process becomes reaper (procctl(PROC_REAP_ACQUIRE)) while already 2015-08-20 22:44:26 +00:00
kern_prot.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
kern_racct.c Get rid of rctl_lock; use racct_lock where appropriate. The fast paths 2016-04-21 16:22:52 +00:00
kern_rangelock.c
kern_rctl.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
kern_resource.c Implement process-shared locks support for libthr.so.3, without 2016-02-28 17:52:33 +00:00
kern_rmlock.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
kern_rwlock.c Microoptimize locking primitives by avoiding unnecessary atomic ops. 2016-06-01 18:32:20 +00:00
kern_sdt.c
kern_sema.c
kern_sendfile.c The sendfile(2) allows to send extra data from userspace before the file 2016-03-29 19:57:11 +00:00
kern_sharedpage.c Split kerne timekeep ABI structure vdso_sv_tk out of the struct 2015-11-23 07:09:35 +00:00
kern_shutdown.c Compile in the kassert_panic() function with INVARIANT_SUPPORT 2016-07-05 18:34:34 +00:00
kern_sig.c Provide helper macros to detect 'non-silent SBDRY' state and to 2016-07-03 18:19:48 +00:00
kern_switch.c Revert for r277213: 2015-01-22 11:12:42 +00:00
kern_sx.c Microoptimize locking primitives by avoiding unnecessary atomic ops. 2016-06-01 18:32:20 +00:00
kern_synch.c Get rid of struct proc p_sched and struct thread td_sched pointers. 2016-06-05 17:04:03 +00:00
kern_syscalls.c Implement lockless resource limits. 2015-06-10 10:48:12 +00:00
kern_sysctl.c Add support for boolean sysctl's. 2016-05-26 08:41:55 +00:00
kern_tc.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
kern_thr.c Do not clear robust lists pointers on fork. The forked child thread 2016-06-25 11:31:25 +00:00
kern_thread.c Provide helper macros to detect 'non-silent SBDRY' state and to 2016-07-03 18:19:48 +00:00
kern_time.c sys: extend use of the howmany() macro when available. 2016-04-26 15:38:17 +00:00
kern_timeout.c The paradigm of a callout is that it has three consequent states: 2016-07-05 18:47:17 +00:00
kern_umtx.c Add implementation of robust mutexes, hopefully close enough to the 2016-05-17 09:56:22 +00:00
kern_uuid.c
kern_xxx.c
ksched.c Use P1B_PRIO_MAX to designate max posix priority for the RR/FIFO 2015-08-30 18:02:57 +00:00
link_elf_obj.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
link_elf.c kern: for pointers replace 0 with NULL. 2016-04-15 16:10:11 +00:00
linker_if.m sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
Make.tags.inc Bring the tags and links entries for amd64 up to date. 2015-10-27 22:59:24 +00:00
Makefile
makesyscalls.sh Add support for COMPAT10 keywords in syscalls.master. 2016-06-22 21:12:53 +00:00
md4c.c crypto routines: Hint minimum buffer sizes to the compiler 2016-05-26 19:29:29 +00:00
md5c.c crypto routines: Hint minimum buffer sizes to the compiler 2016-05-26 19:29:29 +00:00
msi_if.m Introduce MSI and MSI-X support to intrng. This adds a new msi device 2016-05-16 09:11:40 +00:00
p1003_1b.c In preparation for switching linuxulator to the use the native 1:1 2015-05-24 14:44:06 +00:00
pic_if.m Remove FDT specific parts from INTRNG. Change its interface to make it 2016-04-04 09:15:25 +00:00
posix4_mib.c posix4_mib: Don't overrun facility_initialized array 2016-04-27 00:10:32 +00:00
sched_4bsd.c Get rid of struct proc p_sched and struct thread td_sched pointers. 2016-06-05 17:04:03 +00:00
sched_ule.c Get rid of struct proc p_sched and struct thread td_sched pointers. 2016-06-05 17:04:03 +00:00
serdev_if.m
stack_protector.c Use nitems() macro instead of __arraycount() 2015-06-16 20:19:00 +00:00
subr_acl_nfs4.c Expose an interface to determine if an ACE is inherited. 2015-09-04 00:14:20 +00:00
subr_acl_posix1e.c
subr_autoconf.c
subr_blist.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
subr_bufring.c
subr_bus_dma.c Fix a bug introduced in r291716: 2016-01-11 20:38:39 +00:00
subr_bus.c (1) Add a new bus method to get a mapping data for an interrupt. 2016-06-05 16:07:57 +00:00
subr_busdma_bufalloc.c Fix printf format to allow for bus_size_t not being u_long on all platforms. 2015-10-20 03:25:17 +00:00
subr_capability.c capsicum: plug spurious memset in __cap_rights_init 2015-12-01 02:48:42 +00:00
subr_clock.c Do not use Giant to prevent parallel calls to CLOCK_SETTIME(). Use 2016-06-28 16:42:40 +00:00
subr_counter.c Free the temporary buffer in sysctl_handle_counter_u64_array(). 2016-03-15 00:21:32 +00:00
subr_devmap.c Include machine/acle-compat.h in cdefs.h on arm if the compiler doesn't 2016-05-25 19:44:26 +00:00
subr_devstat.c Add support for managing Shingled Magnetic Recording (SMR) drives. 2016-05-19 14:08:36 +00:00
subr_disk.c
subr_dummy_vdso_tc.c Update the vdso timehands only via tc_windup(). 2015-01-20 03:54:30 +00:00
subr_eventhandler.c
subr_fattime.c Where appropriate, use the modern terms for the one true time base 2014-12-21 05:07:11 +00:00
subr_firmware.c Create a dedicated function for ensuring that cdir and rdir are populated. 2015-07-11 16:22:48 +00:00
subr_hash.c kern: Factor out function to convert hash flags to malloc(9) flags 2016-05-04 03:07:52 +00:00
subr_hints.c Add a new device control utility for new-bus devices called devctl. This 2015-02-06 16:09:01 +00:00
subr_intr.c Remove temporary solution for storing interrupt mapping data as 2016-06-07 09:03:27 +00:00
subr_kdb.c Fix multiple incorrect SYSCTL arguments in the kernel: 2014-10-21 07:31:21 +00:00
subr_kobj.c
subr_lock.c Add _NEW flag to mtx(9), sx(9), rmlock(9) and rwlock(9). 2014-12-13 21:00:10 +00:00
subr_log.c
subr_mbpool.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
subr_mchain.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
subr_module.c preload_search_info: make sure mod is set 2015-08-21 15:57:57 +00:00
subr_msgbuf.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
subr_param.c Ensure that maxproc does not exceed pid_max, at the time of boot. 2015-09-21 15:02:59 +00:00
subr_pcpu.c Replace a number of conflations of mp_ncpus and mp_maxid with either 2016-07-06 14:09:49 +00:00
subr_pctrie.c sys: extend use of the howmany() macro when available. 2016-04-26 15:38:17 +00:00
subr_power.c
subr_prf.c kvprintf: Pad %*c to width, like %*s 2016-06-09 18:24:51 +00:00
subr_prof.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
subr_rman.c Add new bus methods for mapping resources. 2016-05-20 17:57:47 +00:00
subr_rtc.c Do not use Giant to prevent parallel calls to CLOCK_SETTIME(). Use 2016-06-28 16:42:40 +00:00
subr_sbuf.c Fail the sbuf if vsnprintf(3) fails. 2015-10-02 09:23:14 +00:00
subr_scanf.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
subr_sfbuf.c
subr_sglist.c Add sglist functions for working with arrays of VM pages. 2016-05-20 23:28:43 +00:00
subr_sleepqueue.c The paradigm of a callout is that it has three consequent states: 2016-07-05 18:47:17 +00:00
subr_smp.c topo_set_pu_id: turn a check into an assertion 2016-04-08 11:59:11 +00:00
subr_stack.c Add support for a configurable output channel to witness(4). 2015-11-19 05:56:59 +00:00
subr_syscall.c Support an arbitrary number of arguments to DTrace syscall probes. 2015-12-17 00:00:27 +00:00
subr_taskqueue.c Replace a number of conflations of mp_ncpus and mp_maxid with either 2016-07-06 14:09:49 +00:00
subr_terminal.c vt(4): Adjust the cursor position after changing the window size 2014-11-01 17:05:15 +00:00
subr_trap.c Revive the check, disabled in r197963. 2016-07-12 03:53:15 +00:00
subr_turnstile.c Finish r173600. There is no need to test a condition if both cases 2016-02-10 21:16:37 +00:00
subr_uio.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
subr_unit.c Fix build of kern/subr_unit.c, broken by r300539 2016-05-24 00:14:58 +00:00
subr_vmem.c subr_vmem: Fix double-free in error case of vmem_create 2016-05-11 23:16:11 +00:00
subr_witness.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
sys_capability.c Introduce kern_cap_rights_limit(). 2015-08-11 08:43:50 +00:00
sys_generic.c Audit file-descriptor arguments to I/O system calls such as 2016-07-10 08:04:02 +00:00
sys_pipe.c Generate syscall tables and update pipe() implementation after r302094. 2016-06-22 21:18:19 +00:00
sys_procdesc.c In process-descriptor close(2) and fstat(2), audit target process 2016-07-10 14:17:36 +00:00
sys_process.c Add ptrace(2) reporting for LWP events. 2015-12-29 23:25:26 +00:00
sys_socket.c Account for AIO socket operations in thread/process resource usage. 2016-06-21 22:19:06 +00:00
syscalls.c Generate syscall tables and update pipe() implementation after r302094. 2016-06-22 21:18:19 +00:00
syscalls.master Do allow auditing of read(2) and write(2) system calls, by assigning 2016-07-10 13:42:33 +00:00
systrace_args.c Generate syscall tables and update pipe() implementation after r302094. 2016-06-22 21:18:19 +00:00
sysv_ipc.c
sysv_msg.c Remove a comment that was part of copied code, and is misleading in 2016-06-09 15:34:33 +00:00
sysv_sem.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
sysv_shm.c osd(9): Change array pointer to array pointer type from void* 2016-04-26 19:57:35 +00:00
tty_compat.c
tty_info.c
tty_inq.c
tty_outq.c
tty_pts.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
tty_tty.c tty: replace several curthread->td_proc with stored curproc 2015-07-06 18:53:56 +00:00
tty_ttydisc.c Don't clear the software flow control flag before draining for last 2016-01-26 14:46:39 +00:00
tty.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
uipc_accf.c
uipc_debug.c Refactor the AIO subsystem to permit file-type-specific handling and 2016-03-01 18:12:14 +00:00
uipc_domain.c The pr_destroy field does not allow us to run the teardown code in a 2016-06-01 10:14:04 +00:00
uipc_mbuf2.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
uipc_mbuf.c kern: for pointers replace 0 with NULL. 2016-04-15 16:10:11 +00:00
uipc_mbufhash.c Reduce header pollution. 2015-03-17 14:16:50 +00:00
uipc_mqueue.c Use the new PR_METHOD_REMOVE to clean up jail handling in POSIX 2016-04-25 04:36:54 +00:00
uipc_sem.c Clean up some style(9) violations. 2016-04-14 17:07:26 +00:00
uipc_shm.c posixshm: Fix lock leak when mac_posixshm_check_read rejects read. 2016-06-23 20:59:13 +00:00
uipc_sockbuf.c kern: for pointers replace 0 with NULL. 2016-04-15 16:10:11 +00:00
uipc_socket.c Fix typo introduced by me (not the submitter) when fixing typos 2016-05-22 13:10:48 +00:00
uipc_syscalls.c The SA-16:19 wouldn't have happened if the sockargs() had properly typed 2016-05-18 22:05:50 +00:00
uipc_usrreq.c kernel: use our nitems() macro when it is available through param.h. 2016-04-19 23:48:27 +00:00
vfs_acl.c Replace struct filedesc argument in getvnode with struct thread 2015-06-16 13:09:18 +00:00
vfs_aio.c Account for AIO socket operations in thread/process resource usage. 2016-06-21 22:19:06 +00:00
vfs_bio.c sys/kern: spelling fixes. 2016-04-29 21:54:28 +00:00
vfs_cache.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
vfs_cluster.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
vfs_default.c Simplify AIO initialization now that it is standard. 2016-03-09 19:05:11 +00:00
vfs_export.c kern: for pointers replace 0 with NULL. 2016-04-15 16:10:11 +00:00
vfs_extattr.c Replace struct filedesc argument in getvnode with struct thread 2015-06-16 13:09:18 +00:00
vfs_hash.c Add vfs_hash_ref(9) function, which finds a vnode by the hash value 2016-05-11 06:32:22 +00:00
vfs_init.c sysctl: switch sysctllock to a sleepable rmlock, take 2 2015-09-15 23:06:56 +00:00
vfs_lookup.c sys/kern: spelling fixes in comments. 2016-04-29 22:15:33 +00:00
vfs_mount.c Add new unmount(2) flag, MNT_NONBUSY, to check whether there are 2016-07-07 09:03:57 +00:00
vfs_mountroot.c Stop hiding errors that result in failure to mount /dev. Otherwise, 2016-05-12 07:38:10 +00:00
vfs_subr.c Fix grammar. 2016-07-11 17:04:22 +00:00
vfs_syscalls.c Audit the file-descriptor number argument for openat(2). Remove a comment 2016-07-10 09:50:21 +00:00
vfs_vnops.c Call audit hooks to capture vnode attributes for three file-descriptor 2016-07-05 16:37:01 +00:00
vnode_if.src Add EVFILT_VNODE open, read and close notifications. 2016-05-03 15:17:43 +00:00