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93c26de0ad
freebsd-dev/sys/kern
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Konstantin Belousov 93c26de0ad Most users of pipe(2) do not call fstat(2) on the returned pipe descriptors. 
Optimize for the case, by lazily allocating the pipe inode number at the
fstat(2) time. If alloc_unr(9) returns failure, do not fail fstat(2), since
uses of inode numbers are even rare then fstat(2), but provide zero inode
forever. Note that alloc_unr() failure is unlikely due to total number
of pipes in the system limited by the number of file descriptors.

Based on the submission by:	gianni
MFC after:	2 weeks
2011-12-06 11:24:03 +00:00
..
bus_if.m Add a new bus method, BUS_ADJUST_RESOURCE() that is intended to be a 2011-04-29 21:36:45 +00:00
capabilities.conf Add experimental support for process descriptors 2011-08-18 22:51:30 +00:00
clock_if.m
cpufreq_if.m
device_if.m Update comments for DEVICE_PROBE() to reflect that BUS_PROBE_DEFAULT is 2011-05-24 13:22:40 +00:00
genassym.sh
imgact_aout.c Do not trash the argv[0] pointer for an a.out process on amd64. 2011-06-16 22:00:59 +00:00
imgact_elf32.c
imgact_elf64.c
imgact_elf.c Control the execution permission of the readable segments for 2011-10-15 12:35:18 +00:00
imgact_gzip.c Add accounting for most of the memory-related resources. 2011-04-05 20:23:59 +00:00
imgact_shell.c The execution of the shebang script requires putting interpreter path, 2011-03-06 22:59:30 +00:00
inflate.c
init_main.c Remove the long reprecated ``/stand/sysinstall'' from the init_path. 2011-10-27 10:25:11 +00:00
init_sysent.c - Add the ffclock_getcounter(), ffclock_getestimate() and ffclock_setestimate() 2011-11-21 01:26:10 +00:00
kern_acct.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
kern_alq.c
kern_clock.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
kern_clocksource.c Set negative quality to TSC timecounter when C3 state is enabled for Intel 2011-06-22 16:40:45 +00:00
kern_condvar.c
kern_conf.c Style. 2011-11-11 04:13:47 +00:00
kern_cons.c
kern_context.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
kern_cpu.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
kern_cpuset.c Add a missing curly bracket 2011-12-05 10:34:52 +00:00
kern_ctf.c The in-kernel CTF parser caches the result of its first attempt to parse 2011-11-08 15:17:54 +00:00
kern_descrip.c Reformat comment to be more readable in standard Xterm. 2011-11-15 01:48:53 +00:00
kern_dtrace.c Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 2011-11-07 06:44:47 +00:00
kern_environment.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
kern_et.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
kern_event.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
kern_exec.c Do not deliver SIGTRAP on exec as the normal signal, use ptracestop() on 2011-09-27 13:17:02 +00:00
kern_exit.c Fix long-standing thinko regarding maxproc accounting. Basically, 2011-09-17 19:55:32 +00:00
kern_fail.c Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 2011-11-07 06:44:47 +00:00
kern_ffclock.c Revise the sysctl handling code and restructure the hierarchy of sysctls 2011-12-01 07:19:13 +00:00
kern_fork.c Move some code inside the racct_proc_fork(); it spares a few lock operations 2011-10-03 17:40:55 +00:00
kern_gzio.c
kern_hhook.c Staticize malloc types. 2011-04-13 11:28:46 +00:00
kern_idle.c On multi-core, multi-threaded PPC systems, it is important that the threads 2011-05-31 15:11:43 +00:00
kern_intr.c - Remove the eintrcnt/eintrnames usage and introduce the concept of 2011-07-18 15:19:40 +00:00
kern_jail.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
kern_khelp.c Use the full and proper company name for Swinburne University of Technology 2011-04-12 08:13:18 +00:00
kern_kthread.c Add experimental support for process descriptors 2011-08-18 22:51:30 +00:00
kern_ktr.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
kern_ktrace.c Revisit the capability failure trace points. The initial implementation 2011-10-18 07:28:58 +00:00
kern_linker.c Add KLD_DEBUG option. 2011-11-06 08:10:41 +00:00
kern_lock.c Constify arguments for locking KPIs where possible. 2011-11-16 21:51:17 +00:00
kern_lockf.c Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 2011-11-07 06:44:47 +00:00
kern_lockstat.c
kern_loginclass.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
kern_malloc.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
kern_mbuf.c
kern_mib.c Define two new sysctl node flags: CTLFLAG_CAPRD and CTLFLAG_CAPRW, which 2011-07-17 23:05:24 +00:00
kern_module.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
kern_mtxpool.c
kern_mutex.c Introduce macro stubs in the mutex implementation that will be always 2011-11-20 16:33:09 +00:00
kern_ntptime.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
kern_osd.c
kern_physio.c Account i/o done on cdevs. 2010-11-25 20:05:11 +00:00
kern_pmc.c Commit the support for removing cpumask_t and replacing it directly with 2011-05-05 14:39:14 +00:00
kern_poll.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
kern_priv.c
kern_proc.c Really protect kern.proc.ps_strings sysctls with p_candebug(). This 2011-12-06 06:40:14 +00:00
kern_prot.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
kern_racct.c Actually enforce limit for inheritable resources on fork. 2011-10-04 14:56:33 +00:00
kern_rctl.c Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 2011-11-07 06:44:47 +00:00
kern_resource.c When changing the user priority of a thread, change the real priority 2011-12-02 19:59:46 +00:00
kern_rmlock.c Constify arguments for locking KPIs where possible. 2011-11-16 21:51:17 +00:00
kern_rwlock.c Constify arguments for locking KPIs where possible. 2011-11-16 21:51:17 +00:00
kern_sdt.c
kern_sema.c
kern_shutdown.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
kern_sig.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
kern_switch.c critical_exit: ignore td_owepreempt if kdb_active is set 2011-12-04 21:27:41 +00:00
kern_sx.c Introduce the same mutex-wise fix in r227758 for sx locks. 2011-11-21 12:59:52 +00:00
kern_synch.c Make sure the description of pause() is 2011-12-03 15:51:15 +00:00
kern_syscalls.c Call chainevh callback when we are invoked with neither MOD_LOAD nor 2010-10-21 20:31:50 +00:00
kern_sysctl.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
kern_tc.c Do away with the somewhat clunky sysclock_ops structure and associated code, 2011-11-29 08:33:40 +00:00
kern_thr.c Use umtx_copyin_timeout() to copy and check timeout parameter. 2011-12-03 12:35:13 +00:00
kern_thread.c Consistently use process spin lock for protection of the 2011-11-18 09:12:26 +00:00
kern_time.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
kern_timeout.c Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 2011-11-07 06:44:47 +00:00
kern_umtx.c Add umtx_copyin_timeout() and move parameter checks here. 2011-12-03 12:30:58 +00:00
kern_uuid.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
kern_xxx.c
ksched.c Use p4prio_to_tsprio to calculate TS priority instead of using 2011-06-07 02:50:14 +00:00
link_elf_obj.c Remove malloc(9) return value checks when M_WAITOK is used. 2011-04-16 16:20:51 +00:00
link_elf.c Even if the loaded module has no symbols, we still need to notify 2011-06-16 17:41:21 +00:00
linker_if.m
Make.tags.inc Update tags build script 2011-07-10 00:53:04 +00:00
Makefile Continue to introduce Capsicum Capability Mode support: 2011-03-01 13:28:27 +00:00
makesyscalls.sh - Add the ffclock_getcounter(), ffclock_getestimate() and ffclock_setestimate() 2011-11-21 01:26:10 +00:00
md4c.c
md5c.c
p1003_1b.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
posix4_mib.c Define two new sysctl node flags: CTLFLAG_CAPRD and CTLFLAG_CAPRW, which 2011-07-17 23:05:24 +00:00
sched_4bsd.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
sched_ule.c - Currently, sched_balance_pair() may cause a CPU to send an IPI_PREEMPT to 2011-10-06 11:48:13 +00:00
serdev_if.m
stack_protector.c
subr_acl_nfs4.c Remove assertion against empty NFSv4 ACLs. An empty ACL is not exactly 2011-10-05 17:29:49 +00:00
subr_acl_posix1e.c
subr_autoconf.c Retire PCONFIG and leave the priority of thread0 alone when waiting for 2011-01-06 22:09:37 +00:00
subr_blist.c - Fix typos s/(more|less) then|\1 than/ 2011-12-03 15:41:37 +00:00
subr_bufring.c
subr_bus.c It doesn't make much sense to check whether child is NULL after already 2011-12-02 22:03:27 +00:00
subr_clock.c Improve style and wording of comments and sysctl descriptions [1]. 2011-01-09 14:34:56 +00:00
subr_devstat.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
subr_disk.c
subr_eventhandler.c
subr_fattime.c
subr_firmware.c Do not increment the parent firmware's reference count when any other 2011-11-19 00:20:28 +00:00
subr_hash.c
subr_hints.c
subr_kdb.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
subr_kobj.c As it turns out, r186347 actually is insufficient to avoid the use of the 2011-11-15 20:11:03 +00:00
subr_lock.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
subr_log.c Finish r210923, 210926. Mark some devices as eternal. 2011-01-04 10:59:38 +00:00
subr_mbpool.c
subr_mchain.c Add unicode support to msdosfs and smbfs; original pathes from imura, 2011-11-18 03:05:20 +00:00
subr_module.c Provide convenience function for obtaining MODINFO_ADDR and MODINFO_SIZE 2011-02-09 19:08:21 +00:00
subr_msgbuf.c Fix a bug introduced in revision 222537. 2011-05-31 22:39:32 +00:00
subr_param.c Modestly increase the maximum allowed size of the kmem map on i386. 2011-03-23 16:38:29 +00:00
subr_pcpu.c Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 2011-11-07 06:44:47 +00:00
subr_power.c
subr_prf.c Fix double vision syndrome (read: double output) when in the 2011-10-16 14:16:46 +00:00
subr_prof.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
subr_rman.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
subr_rtc.c Core structure and functions to support a feed-forward clock within the kernel. 2011-11-19 14:10:16 +00:00
subr_sbuf.c r222015 introduced a new assertion that the size of a fixed-length sbuf 2011-08-19 08:29:10 +00:00
subr_scanf.c
subr_sglist.c
subr_sleepqueue.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
subr_smp.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
subr_stack.c Constify stack argument for functions that don't modify it. 2011-11-16 19:06:55 +00:00
subr_syscall.c Revert rev. 226893: subr_syscall.c is being included from C files and 2011-10-30 02:19:39 +00:00
subr_taskqueue.c Ensure that ta_pending doesn't overflow u_short by capping its value at USHRT_MAX. 2011-09-15 08:42:06 +00:00
subr_trap.c Assert that exiting process does not return to usermode. 2011-10-03 16:58:58 +00:00
subr_turnstile.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
subr_uio.c Constify args to copyiniov and copyinuio. 2011-11-14 07:12:10 +00:00
subr_unit.c Fix typos - remove duplicate "the". 2011-02-21 09:01:34 +00:00
subr_witness.c Constify arguments for locking KPIs where possible. 2011-11-16 21:51:17 +00:00
sys_capability.c Revisit the capability failure trace points. The initial implementation 2011-10-18 07:28:58 +00:00
sys_generic.c To limit amount of the kernel memory allocated, and to optimize the 2011-11-13 10:28:01 +00:00
sys_pipe.c Most users of pipe(2) do not call fstat(2) on the returned pipe descriptors. 2011-12-06 11:24:03 +00:00
sys_procdesc.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
sys_process.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
sys_socket.c Add the fo_chown and fo_chmod methods to struct fileops and use them 2011-08-16 20:07:47 +00:00
syscalls.c - Add the ffclock_getcounter(), ffclock_getestimate() and ffclock_setestimate() 2011-11-21 01:26:10 +00:00
syscalls.master - Add the ffclock_getcounter(), ffclock_getestimate() and ffclock_setestimate() 2011-11-21 01:26:10 +00:00
systrace_args.c - Add the ffclock_getcounter(), ffclock_getestimate() and ffclock_setestimate() 2011-11-21 01:26:10 +00:00
sysv_ipc.c
sysv_msg.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
sysv_sem.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
sysv_shm.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
tty_compat.c
tty_info.c
tty_inq.c Fix whitespace inconsistencies in the TTY layer and its drivers owned by me. 2011-06-26 18:26:20 +00:00
tty_outq.c Fix whitespace inconsistencies in the TTY layer and its drivers owned by me. 2011-06-26 18:26:20 +00:00
tty_pts.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
tty_tty.c Finish r210923, 210926. Mark some devices as eternal. 2011-01-04 10:59:38 +00:00
tty_ttydisc.c Fix whitespace inconsistencies in the TTY layer and its drivers owned by me. 2011-06-26 18:26:20 +00:00
tty.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
uipc_accf.c
uipc_cow.c Add some FEATURE macros for various features (AUDIT/CAM/IPC/KTR/MAC/NFS/NTP/ 2011-02-25 10:11:01 +00:00
uipc_debug.c
uipc_domain.c
uipc_mbuf2.c
uipc_mbuf.c Fix typos - remove duplicate "the". 2011-02-21 09:01:34 +00:00
uipc_mqueue.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
uipc_sem.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
uipc_shm.c Rename vm_page_set_valid() to vm_page_set_valid_range(). 2011-11-30 17:39:00 +00:00
uipc_sockbuf.c Increase the defaults for the maximum socket buffer limit, 2011-08-25 09:20:13 +00:00
uipc_socket.c Remove a few bits of FreeBSD 2.x compatibility code. 2011-11-14 18:21:27 +00:00
uipc_syscalls.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
uipc_usrreq.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
vfs_acl.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
vfs_aio.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
vfs_bio.c Rename vm_page_set_valid() to vm_page_set_valid_range(). 2011-11-30 17:39:00 +00:00
vfs_cache.c Existing VOP_VPTOCNP() interface has a fatal flow that is critical for 2011-11-19 07:50:49 +00:00
vfs_cluster.c The hardware has caught up; improvements are now observed even at 128, 2011-03-16 16:22:59 +00:00
vfs_default.c Existing VOP_VPTOCNP() interface has a fatal flow that is critical for 2011-11-19 07:50:49 +00:00
vfs_export.c
vfs_extattr.c In order to maximize the re-usability of kernel code in user space this 2011-09-16 13:58:51 +00:00
vfs_hash.c
vfs_init.c Modify vfs_register() to use a hash calculation 2011-09-13 21:01:26 +00:00
vfs_lookup.c Revisit the capability failure trace points. The initial implementation 2011-10-18 07:28:58 +00:00
vfs_mount.c Introduce the option VFS_ALLOW_NONMPSAFE and turn it on by default on 2011-11-08 10:18:07 +00:00
vfs_mountroot.c Don't terminate the interactive root mount prompt on mount failure. 2011-10-23 20:03:33 +00:00
vfs_subr.c Add the posix_fadvise(2) system call. It is somewhat similar to 2011-11-04 04:02:50 +00:00
vfs_syscalls.c Fix a race between getvnode() dereferencing half-constructed file 2011-11-24 20:34:06 +00:00
vfs_vnops.c Add the posix_fadvise(2) system call. It is somewhat similar to 2011-11-04 04:02:50 +00:00
vnode_if.src Add the posix_fadvise(2) system call. It is somewhat similar to 2011-11-04 04:02:50 +00:00