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6c21f6edb8
freebsd-skq/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 Allow sigwait(2) in capabilities mode. 2014-01-28 01:49:49 +00:00
clock_if.m
cpufreq_if.m
device_if.m Revert r239178 and implement two new functions, namely 2012-08-15 15:42:57 +00:00
genassym.sh
imgact_aout.c Cosmetics: define FREEBSD32_MINUSER and AOUT32_MINUSER for struct 2012-07-22 13:41:45 +00:00
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 Add a mmap flag (MAP_32BIT) on 64-bit platforms to request that a mapping use 2013-09-09 18:11:59 +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
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 acct: create a special plimit object and set it for exiting processes 2013-06-30 19:08:06 +00:00
kern_alq.c Prevent alq from panic when the invalid alq_file path specified. 2014-04-05 16:54:47 +00:00
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 Fix lc_lock/lc_unlock() support for rmlocks held in shared mode. With 2013-09-20 23:06:21 +00:00
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 Remove the support for using non-mpsafe filesystem modules. 2012-10-22 17:50:54 +00:00
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 Fix build breakage. Apparently all ARM configs build kern_et.c, but only a 2014-04-02 17:34:17 +00:00
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 Remove the support for using non-mpsafe filesystem modules. 2012-10-22 17:50:54 +00:00
kern_hhook.c Move hhook's per-vnet initialisation to an earlier SYSINIT SI_SUB stage to 2013-06-15 10:08:34 +00:00
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 Cleanup and simplification in khelp_{register|deregister}_helper(). No 2013-06-15 06:45:17 +00:00
kern_kthread.c Do not use potentially stale thread in kthread_add() 2013-08-17 17:02:43 +00:00
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 - For kernel compiled only with KDTRACE_HOOKS and not any lock debugging 2013-11-25 07:38:45 +00:00
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 Fix a typo. 2012-08-22 20:01:57 +00:00
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 Fix some issues in change 254760 pointed out by Bruce Evans: 2013-08-29 16:41:40 +00:00
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 Change the queue of locks in kern_rangelock.c from holding lock requests in 2013-08-15 20:19:17 +00:00
kern_rctl.c Add CPU percentage limit enforcement to RCTL. The resouce name is "pcpu". 2012-10-26 16:01:08 +00:00
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 Print a backtrace if the SDT(9) stub gets called so that there's at least 2014-02-22 01:41:45 +00:00
kern_sema.c
kern_sharedpage.c Remove the deprecated VM_ALLOC_RETRY flag for the vm_page_grab(9). 2013-08-22 07:39:53 +00:00
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 Add a comment on why inlining critical_enter() may not be a good idea 2012-12-09 04:54:22 +00:00
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 Fix a bug in be_uuid_dec(); it called le16dec() instead of be16dec(), 2014-02-13 22:24:36 +00:00
kern_xxx.c
ksched.c sched_rr_interval() seems always returned period in hz ticks, but same 2012-08-10 18:19:57 +00:00
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 Remove AppleTalk support. 2014-03-14 06:29:43 +00:00
Makefile
makesyscalls.sh Fix syscalls that can be loaded as kernel modules - they were not given 2013-12-15 23:19:42 +00:00
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 Remove reference to the rlist code from comments, and fix a typo visible 2013-02-05 20:08:33 +00:00
subr_bufring.c
subr_bus_dma.c Add bus_dmamap_load_ma() function to load map with the array of 2013-10-27 21:39:16 +00:00
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 Replace kernel virtual address space allocation with vmem. This provides 2013-08-07 06:21:20 +00:00
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 Create two public UMA_ZONE_PCPU zones: 64 bit sized and pointer sized. 2014-02-10 19:59:46 +00:00
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 Implement mechanism to export some kernel timekeeping data to 2012-06-22 07:06:40 +00:00
subr_eventhandler.c
subr_fattime.c Fix a comment typo; conversion tables are for leap years, not leap seconds. 2014-04-20 13:37:22 +00:00
subr_firmware.c Correct sizeof usage 2012-06-25 05:41:16 +00:00
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 MFcalloutng (r244255 by mav, with minor changes): 2013-03-04 16:07:55 +00:00
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 Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
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 Create two public UMA_ZONE_PCPU zones: 64 bit sized and pointer sized. 2014-02-10 19:59:46 +00:00
subr_pctrie.c - Add a new general purpose path-compressed radix trie which can be used 2013-05-12 04:05:01 +00:00
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 Add sglist_append_bio(9) to append a struct bio's data to a sglist 2014-01-13 04:41:08 +00:00
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 Fix two issues with /dev/mem access on amd64, both causing kernel page 2014-03-21 14:25:09 +00:00
subr_turnstile.c dtrace sdt: remove the ugly sname parameter of SDT_PROBE_DEFINE 2013-11-26 08:46:27 +00:00
subr_uio.c Add type qualifier volatile to the base (userspace) address argument 2014-10-31 17:43:21 +00:00
subr_unit.c Move the definition of the struct unrhdr into a separate header file, 2013-08-30 07:37:45 +00:00
subr_vmem.c Do not set M_BESTFIT if a strategy has already been provided. This 2014-04-16 21:39:43 +00:00
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 Correct SIGTTIN handling. 2012-10-25 09:05:21 +00:00
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 Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
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 When allocating a pbuf for the cluster write, do not sleep waiting 2013-08-27 01:31:12 +00:00
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 Update kernel inclusions of capability.h to use capsicum.h instead; some 2014-03-16 10:55:57 +00:00
vfs_hash.c Add exported vfs_hash_index() function, which calculates the canonical 2013-01-14 05:41:40 +00:00
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