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freebsd-dev/sys/kern
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Konstantin Belousov 6c21f6edb8 The VOP_LOOKUP() implementations for CREATE op do not put the name 
into namecache, to avoid cache trashing when doing large operations.
E.g., tar archive extraction is not usually followed by access to many
of the files created.

Right now, each VOP_LOOKUP() implementation explicitely knowns about
this quirk and tests for both MAKEENTRY flag presence and op != CREATE
to make the call to cache_enter().  Centralize the handling of the
quirk into VFS, by deciding to cache only by MAKEENTRY flag in VOP.
VFS now sets NOCACHE flag for CREATE namei() calls.

Note that the change in semantic is backward-compatible and could be
merged to the stable branch, and is compatible with non-changed
third-party filesystems which correctly handle MAKEENTRY.

Suggested by:	Chris Torek <torek@pi-coral.com>
Reviewed by:	mckusick
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2014-12-18 10:01:12 +00:00
..
bus_if.m Add a bus method to fetch the VM domain for the given device/bus. 2014-10-09 05:33:25 +00:00
capabilities.conf
clock_if.m
cpufreq_if.m
device_if.m
genassym.sh
imgact_aout.c
imgact_binmisc.c Allow multiple image activators to run on the same execution by changing 2014-09-04 21:31:25 +00:00
imgact_elf32.c
imgact_elf64.c
imgact_elf.c The size value should be asserted when it is known. 2014-11-22 18:15:02 +00:00
imgact_gzip.c
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
init_main.c Add a facility for non-init process to declare itself the reaper of 2014-12-15 12:01:42 +00:00
init_sysent.c Regen for r274462. 2014-11-13 05:28:06 +00:00
kern_acct.c
kern_alq.c
kern_clock.c The process spin lock currently has the following distinct uses: 2014-11-26 14:10:00 +00:00
kern_clocksource.c remove opensolaris cyclic code, replace with high-precision callouts 2014-12-07 11:21:41 +00:00
kern_condvar.c
kern_conf.c Adjust printf format specifiers for dev_t and ino_t in kernel. 2014-12-17 07:27:19 +00:00
kern_cons.c Stop using early_putc immediately after configuring console with cninit() 2014-11-19 14:23:29 +00:00
kern_context.c
kern_cpu.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
kern_cpuset.c Fix multiple incorrect SYSCTL arguments in the kernel: 2014-10-21 07:31:21 +00:00
kern_ctf.c
kern_descrip.c Properly initialize the capability rights for vnodes exported to procstat 2014-11-24 18:34:11 +00:00
kern_dtrace.c Commit the rest of the changes that were intended to be part of r266826. 2014-05-29 01:42:22 +00:00
kern_environment.c Test if 'env' is NULL before doing memset() and strlen(), 2014-10-23 18:23:50 +00:00
kern_et.c
kern_event.c prevent doing filter ops locking for staticly compiled filter ops... 2014-11-16 01:18:41 +00:00
kern_exec.c Add facility to stop all userspace processes. The supposed use of the 2014-12-13 16:18:29 +00:00
kern_exit.c Add a facility for non-init process to declare itself the reaper of 2014-12-15 12:01:42 +00:00
kern_fail.c
kern_ffclock.c The SYSCTL data pointers can come from userspace and must not be 2014-10-28 12:00:39 +00:00
kern_fork.c Add a facility for non-init process to declare itself the reaper of 2014-12-15 12:01:42 +00:00
kern_gzio.c
kern_hhook.c
kern_idle.c
kern_intr.c This is the much-discussed major upgrade to the random(4) device, known to you all as /dev/random. 2014-10-30 21:21:53 +00:00
kern_jail.c Avoid unlocking unlocked mutex in RCTL jail code. Specific test case 2014-09-09 16:05:33 +00:00
kern_khelp.c
kern_kthread.c
kern_ktr.c Drop KTR records when we're in the debugger so that the debugger isn't 2014-07-02 22:13:07 +00:00
kern_ktrace.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
kern_linker.c Const poison in a few places to ensure we don't modify things 2014-12-03 22:14:13 +00:00
kern_lock.c Do not try to dereference thread pointer when the value is not a pointer. 2014-11-13 17:44:35 +00:00
kern_lockf.c Correct the problem reported by test16 from 2014-07-08 08:10:15 +00:00
kern_lockstat.c
kern_loginclass.c Simplify sys_getloginclass. 2014-10-28 04:59:33 +00:00
kern_malloc.c svn revisions r269964 and r269963 seemed to have impaired small memory 2014-09-22 05:07:22 +00:00
kern_mbuf.c Test for absence of M_NOFREE before attempting to purge the mbuf's tags. 2014-09-30 23:16:26 +00:00
kern_mib.c Fix multiple incorrect SYSCTL arguments in the kernel: 2014-10-21 07:31:21 +00:00
kern_module.c
kern_mtxpool.c Garbage collect mtxpool_lockbuilder, the mutex pool historically used 2014-05-02 07:57:40 +00:00
kern_mutex.c Add _NEW flag to mtx(9), sx(9), rmlock(9) and rwlock(9). 2014-12-13 21:00:10 +00:00
kern_ntptime.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
kern_osd.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
kern_physio.c
kern_pmc.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
kern_poll.c - Remove empty wrappers ether_poll_[de]register_drv(). [1] 2014-09-28 14:05:18 +00:00
kern_priv.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
kern_proc.c Fix gcc build. 2014-12-14 08:43:13 +00:00
kern_procctl.c Add missed break. 2014-12-16 09:49:07 +00:00
kern_prot.c Extend struct ucred with group table. 2014-11-05 02:08:37 +00:00
kern_racct.c The process spin lock currently has the following distinct uses: 2014-11-26 14:10:00 +00:00
kern_rangelock.c
kern_rctl.c
kern_resource.c The process spin lock currently has the following distinct uses: 2014-11-26 14:10:00 +00:00
kern_rmlock.c Add _NEW flag to mtx(9), sx(9), rmlock(9) and rwlock(9). 2014-12-13 21:00:10 +00:00
kern_rwlock.c Add _NEW flag to mtx(9), sx(9), rmlock(9) and rwlock(9). 2014-12-13 21:00:10 +00:00
kern_sdt.c
kern_sema.c
kern_sharedpage.c
kern_shutdown.c Add missing privilege check when setting the dump device. Before that change it 2014-11-11 04:48:09 +00:00
kern_sig.c Add facility to stop all userspace processes. The supposed use of the 2014-12-13 16:18:29 +00:00
kern_switch.c
kern_sx.c Add _NEW flag to mtx(9), sx(9), rmlock(9) and rwlock(9). 2014-12-13 21:00:10 +00:00
kern_synch.c Fix multiple incorrect SYSCTL arguments in the kernel: 2014-10-21 07:31:21 +00:00
kern_syscalls.c Fix up module unload for syscall_module_handler consumers. 2014-11-01 22:36:40 +00:00
kern_sysctl.c Now that sysctl_root is only called with sysctl lock in shared mode, update 2014-10-26 01:47:55 +00:00
kern_tc.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
kern_thr.c Clean up confusing comment. Move it to the place of code which is 2014-11-03 11:29:08 +00:00
kern_thread.c Add missed break. 2014-12-16 09:48:23 +00:00
kern_time.c The process spin lock currently has the following distinct uses: 2014-11-26 14:10:00 +00:00
kern_timeout.c Add schedgraph traces for callout handlers. Specifically, a callwheel logs 2014-10-08 16:22:59 +00:00
kern_umtx.c Fix assertion, &uc->uc_busy is never zero, the intent is to test the 2014-11-13 18:51:09 +00:00
kern_uuid.c
kern_xxx.c
ksched.c
link_elf_obj.c Fully support constructors for the purpose of code coverage analysis. 2014-10-20 17:04:03 +00:00
link_elf.c Fully support constructors for the purpose of code coverage analysis. 2014-10-20 17:04:03 +00:00
linker_if.m
Make.tags.inc
Makefile
makesyscalls.sh
md4c.c
md5c.c
p1003_1b.c
posix4_mib.c
sched_4bsd.c Restore pre-r239157 handling of sched_yield(), when thread time slice was 2014-08-23 17:31:56 +00:00
sched_ule.c Update the ULE scheduler + thread and kinfo structs to use int for cpuid 2014-10-18 19:36:11 +00:00
serdev_if.m
stack_protector.c
subr_acl_nfs4.c
subr_acl_posix1e.c
subr_autoconf.c
subr_blist.c
subr_bufring.c
subr_bus_dma.c
subr_bus.c Revert device_getenv_int() for now as it duplicates resource_int_value(). 2014-12-03 15:29:53 +00:00
subr_busdma_bufalloc.c
subr_capability.c Remove duplicated includes. 2014-06-26 13:57:44 +00:00
subr_clock.c For architectures where time_t is wide enough, in particular, 64bit 2014-12-12 09:37:18 +00:00
subr_counter.c
subr_devstat.c Fix multiple incorrect SYSCTL arguments in the kernel: 2014-10-21 07:31:21 +00:00
subr_disk.c
subr_dummy_vdso_tc.c
subr_eventhandler.c
subr_fattime.c
subr_firmware.c
subr_hash.c
subr_hints.c Follow up to r225617. In order to maximize the re-usability of kernel code 2014-10-16 18:04:43 +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 All mbuf external free functions never fail, so let them be void. 2014-07-11 13:58:48 +00:00
subr_mchain.c
subr_module.c
subr_msgbuf.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
subr_param.c Rework virtual machine hypervisor detection. 2014-10-28 19:17:44 +00:00
subr_pcpu.c
subr_pctrie.c
subr_power.c
subr_prf.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
subr_prof.c The process spin lock currently has the following distinct uses: 2014-11-26 14:10:00 +00:00
subr_rman.c Nuke the never-used RF_TIMESHARE feature, reducing the complexity of the 2014-07-16 22:18:19 +00:00
subr_rtc.c
subr_sbuf.c Unbreak the ABI by reverting r268494 until the compat shims are provided 2014-07-28 07:20:22 +00:00
subr_scanf.c
subr_sfbuf.c Move KASSERT into locked region. 2014-08-11 15:06:07 +00:00
subr_sglist.c
subr_sleepqueue.c sysctl subsystem uses sxlocks so avoid to setup dynamic sysctl nodes 2014-06-24 15:16:55 +00:00
subr_smp.c Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
subr_stack.c
subr_syscall.c Thread waiting for the vfork(2)-ed child to exec or exit, must allow 2014-12-08 16:18:05 +00:00
subr_taskqueue.c Remove trailing whitespace. 2014-11-30 19:32:00 +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
subr_turnstile.c
subr_uio.c Add type qualifier volatile to the base (userspace) address argument 2014-10-31 17:43:21 +00:00
subr_unit.c
subr_vmem.c
subr_witness.c Fix a typo from r189544, which replaced unp_global_rwlock with unp_list_lock 2014-10-20 20:21:40 +00:00
sys_capability.c Prepare fget_unlocked for reading fd table only once. 2014-07-23 19:33:49 +00:00
sys_generic.c Style changes: 2014-11-28 09:32:07 +00:00
sys_pipe.c Remove lock recursion for the pipe pair mutex, and disable the 2014-11-29 17:18:20 +00:00
sys_procdesc.c Add a new fo_fill_kinfo fileops method to add type-specific information to 2014-09-22 16:20:47 +00:00
sys_process.c Add a facility for non-init process to declare itself the reaper of 2014-12-15 12:01:42 +00:00
sys_socket.c In preparation of merging projects/sendfile, transform bare access to 2014-11-12 09:57:15 +00:00
syscalls.c Regen for r274462. 2014-11-13 05:28:06 +00:00
syscalls.master Add the ppoll() system call. 2014-11-13 05:26:14 +00:00
systrace_args.c Regen for r274462. 2014-11-13 05:28:06 +00:00
sysv_ipc.c
sysv_msg.c Avoid dynamic syscall overhead for statically compiled modules. 2014-10-26 19:42:44 +00:00
sysv_sem.c Avoid dynamic syscall overhead for statically compiled modules. 2014-10-26 19:42:44 +00:00
sysv_shm.c Avoid dynamic syscall overhead for statically compiled modules. 2014-10-26 19:42:44 +00:00
tty_compat.c
tty_info.c
tty_inq.c
tty_outq.c
tty_pts.c Implement FIODTYPE for master ptys. 2014-10-15 12:38:26 +00:00
tty_tty.c
tty_ttydisc.c
tty.c Fix draining in ttydev_leave(): 2014-10-09 02:30:38 +00:00
uipc_accf.c The accept filter code is not specific to the FreeBSD IPv4 network stack, 2014-07-26 19:27:34 +00:00
uipc_debug.c Merge from projects/sendfile: 2014-11-30 12:52:33 +00:00
uipc_domain.c Merge from projects/sendfile: extend protocols API to support 2014-11-30 13:24:21 +00:00
uipc_mbuf2.c
uipc_mbuf.c Merge from projects/sendfile: extend protocols API to support 2014-11-30 13:24:21 +00:00
uipc_mqueue.c Avoid dynamic syscall overhead for statically compiled modules. 2014-10-26 19:42:44 +00:00
uipc_sem.c Avoid dynamic syscall overhead for statically compiled modules. 2014-10-26 19:42:44 +00:00
uipc_shm.c Add a new fo_fill_kinfo fileops method to add type-specific information to 2014-09-22 16:20:47 +00:00
uipc_sockbuf.c Merge from projects/sendfile: extend protocols API to support 2014-11-30 13:24:21 +00:00
uipc_socket.c Check for SS_NBIO in so->so_state instead of sb->sb_flags in 2014-12-15 17:52:08 +00:00
uipc_syscalls.c Remove the no-at variants of the kern_xx() syscall helpers. E.g., we 2014-11-13 18:01:51 +00:00
uipc_usrreq.c The VOP_LOOKUP() implementations for CREATE op do not put the name 2014-12-18 10:01:12 +00:00
vfs_acl.c Replace some calls to fuword() by fueword() with proper error checking. 2014-10-28 15:28:20 +00:00
vfs_aio.c Avoid dynamic syscall overhead for statically compiled modules. 2014-10-26 19:42:44 +00:00
vfs_bio.c When getnewbuf_reuse_bp() is called to reclaim some (clean) buffer, 2014-12-08 16:42:34 +00:00
vfs_cache.c Fix multiple incorrect SYSCTL arguments in the kernel: 2014-10-21 07:31:21 +00:00
vfs_cluster.c
vfs_default.c Merge from projects/sendfile: 2014-11-23 12:01:52 +00:00
vfs_export.c After the changes in r274118 make NOIP kernels compile by hiding an 2014-11-06 12:19:39 +00:00
vfs_extattr.c
vfs_hash.c
vfs_init.c Rename sysctl_lock and _unlock to sysctl_xlock and _xunlock. 2014-10-21 19:02:26 +00:00
vfs_lookup.c Fix two issues with lockmgr(9) LK_CAN_SHARE() test, which determines 2014-11-02 13:10:31 +00:00
vfs_mount.c Do not call VFS_SYNC() before VFS_UNMOUNT() for forced unmount. 2014-12-09 10:00:47 +00:00
vfs_mountroot.c Remove the no-at variants of the kern_xx() syscall helpers. E.g., we 2014-11-13 18:01:51 +00:00
vfs_subr.c The vinactive() call in vgonel() may start writes for the dirty pages, 2014-12-13 16:02:37 +00:00
vfs_syscalls.c The VOP_LOOKUP() implementations for CREATE op do not put the name 2014-12-18 10:01:12 +00:00
vfs_vnops.c The VOP_LOOKUP() implementations for CREATE op do not put the name 2014-12-18 10:01:12 +00:00
vnode_if.src Merge from projects/sendfile: 2014-11-23 12:01:52 +00:00