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6d30588666
freebsd-skq/sys/kern
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kib 6d30588666 Do not invalidate page of the B_NOCACHE buffer or buffer after an I/O 
error if any user wired mappings exist.  Doing the invalidation
destroys the user wiring.

The change is the temporal measure to close the bug, the more proper
fix is to delegate the invalidation of the page to upper layers
always.

Reported and tested by:	pho
Reviewed by:	alc
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2013-07-11 05:36:26 +00:00
..
bus_if.m Add a BUS_CHILD_DELETED() method that a bus can hook to allow it to cleanup 2012-08-21 18:13:09 +00:00
capabilities.conf Add pipe2() system call. 2013-05-01 22:42:42 +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
dtio_kdtrace.c Change the module name for the I/O provider to "kernel" from 2012-09-25 19:16:28 +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_elf32.c
imgact_elf64.c
imgact_elf.c Introduce a constant, ELF_NOTE_ROUNDSIZE, which evidently declare our 2013-05-01 14:59:16 +00:00
imgact_gzip.c - Correct mispellings of the word necessary 2013-04-17 11:42:40 +00:00
imgact_shell.c
inflate.c
init_main.c MFP4 change 210763 2013-04-03 22:24:36 +00:00
init_sysent.c aio_mlock() added: 2013-06-08 13:30:13 +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 The fix committed in r250951 replaced the reported panic with a deadlock... gold 2013-06-17 09:49:07 +00:00
kern_clock.c Correct a bug that prevented deadlkres from (almost) ever firing. 2013-06-28 15:55:30 +00:00
kern_clocksource.c - Make callout(9) tickless, relying on eventtimers(4) as backend for 2013-03-04 11:09:56 +00:00
kern_condvar.c MFcalloutng: 2013-03-04 12:20:48 +00:00
kern_conf.c Reject spaces and double quotation marks in device names. devctl(4) 2012-12-22 13:33:28 +00:00
kern_cons.c cngetc: use cpu_spinwait to ease the cncheckc loop a tiny bit 2012-10-06 19:50:23 +00:00
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 Revert r175376 and tune cpufreq(4) frequency comparison logic instead. 2012-03-10 18:56:16 +00:00
kern_cpuset.c Several improvements to rmlock(9). Many of these are based on patches 2013-06-25 18:44:15 +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 Plug up the lock lock leakage when exporting to a short buffer. 2013-07-01 03:27:14 +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 r249408 and r249436 cause a NULL pointer dereference on the CUBIEBOARD 2013-04-16 22:09:08 +00:00
kern_et.c Fix incorrect assertion that caused panic when periodic-only timers used. 2013-03-13 06:42:01 +00:00
kern_event.c Change callout use counter to use C11 atomics. 2013-06-16 09:30:35 +00:00
kern_exec.c Don't busy the page unless we are likely to release the object lock. 2013-06-06 06:17:20 +00:00
kern_exit.c Merge Capsicum overhaul: 2013-03-02 00:53:12 +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 Include PID in the error message which is printed when the maxproc limit 2013-04-19 15:19:29 +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 MFC 2011-05-31 21:22:44 +00:00
kern_intr.c The change in r236456 (atomic_store_rel not locked) exposed a bug 2013-07-04 05:53:05 +00:00
kern_jail.c Refine the "nojail" rc keyword, adding "nojailvnet" for files that don't 2013-05-19 04:10:34 +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 Stop treating td_sigmask specially for the purposes of new thread 2012-05-26 20:03:47 +00:00
kern_ktr.c ktr: correctly handle possible wrap-around in the boot buffer 2013-02-08 07:29:07 +00:00
kern_ktrace.c Remove the support for using non-mpsafe filesystem modules. 2012-10-22 17:50:54 +00:00
kern_linker.c Remove the support for using non-mpsafe filesystem modules. 2012-10-22 17:50:54 +00:00
kern_lock.c A few mostly cosmetic nits to aid in debugging: 2013-06-25 20:23:08 +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 Try to improve r242655 take III: move these SYSCTLs describing the kernel 2013-02-04 09:35:48 +00:00
kern_mbuf.c Initialising the new fibnum field to a known value turns out to 2013-05-24 02:18:37 +00:00
kern_mib.c fix some fat-fingering in r246246 2013-02-02 14:19:50 +00:00
kern_module.c Fix a typo. 2012-08-22 20:01:57 +00:00
kern_mtxpool.c
kern_mutex.c A few mostly cosmetic nits to aid in debugging: 2013-06-25 20:23:08 +00:00
kern_ntptime.c Limit popcorn limit to something sane (either 2ns or 2 ticks if that's 2012-08-16 02:35:44 +00:00
kern_osd.c
kern_physio.c Add dev_strategy_csw() function, which is similar to dev_strategy() 2013-03-27 11:34:27 +00:00
kern_pmc.c Add software PMC support. 2012-03-28 20:58:30 +00:00
kern_poll.c Increase the (arbitrary) limit for the number of packets per tick 2013-05-22 16:32:18 +00:00
kern_priv.c Make the comments a little more clear about PRIV_KMEM_*, explicitly 2013-07-06 00:10:52 +00:00
kern_proc.c Similarly to proc_getargv() and proc_getenvv(), export proc_getauxv() 2013-04-14 20:03:48 +00:00
kern_prot.c Style fix 2012-11-14 10:33:12 +00:00
kern_racct.c Accessing td_state requires thread lock to be held. 2013-03-14 23:20:18 +00:00
kern_rangelock.c Add a rangelock implementation, intended to be used to range-locking 2012-05-30 16:06:38 +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 Call sched_prio() to immediately change the priority of the thread in 2013-03-07 02:53:29 +00:00
kern_rmlock.c Fix build with INVARIANT_SUPPORT enabled but not INVARIANTS. 2013-07-08 21:17:20 +00:00
kern_rwlock.c A few mostly cosmetic nits to aid in debugging: 2013-06-25 20:23:08 +00:00
kern_sdt.c Instead of only iterating over the set of known SDT probes when sdt.ko is 2012-03-27 15:07:43 +00:00
kern_sema.c
kern_sharedpage.c Rename VM_OBJECT_LOCK(), VM_OBJECT_UNLOCK() and VM_OBJECT_TRYLOCK() to 2013-02-20 12:03:20 +00:00
kern_shutdown.c Switch vm_object lock to be a rwlock. 2013-02-20 10:38:34 +00:00
kern_sig.c Fix memory leak in coredump(). 2013-04-05 20:24:51 +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 A few mostly cosmetic nits to aid in debugging: 2013-06-25 20:23:08 +00:00
kern_synch.c should_yield: protect from td_swvoltick being uninitialized or too stale 2013-07-09 09:01:44 +00:00
kern_syscalls.c
kern_sysctl.c - Use strdup(9) instead of reimplementing it. 2013-03-01 18:49:14 +00:00
kern_tc.c - Make callout(9) tickless, relying on eventtimers(4) as backend for 2013-03-04 11:09:56 +00:00
kern_thr.c Stop treating td_sigmask specially for the purposes of new thread 2012-05-26 20:03:47 +00:00
kern_thread.c Another NFS SIGSTOP related fix: Ignore thread suspend requests due to 2013-03-21 14:06:27 +00:00
kern_time.c Make kern_nanosleep() and pause_sbt() to use per-CPU sleep queues. 2013-03-12 06:58:49 +00:00
kern_timeout.c Cache the callout precision argument as part of the informations required 2013-03-25 09:43:50 +00:00
kern_umtx.c Fix two issues with the spin loops in the umtx(2) implementation. 2013-06-13 09:33:22 +00:00
kern_uuid.c Convert all users of IF_ADDR_LOCK to use new locking macros that specify 2012-01-05 19:00:36 +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 Remove the support for using non-mpsafe filesystem modules. 2012-10-22 17:50:54 +00:00
link_elf.c Remove the support for using non-mpsafe filesystem modules. 2012-10-22 17:50:54 +00:00
linker_if.m
Make.tags.inc - Trim an unused and bogus Makefile for mount_smbfs. 2013-06-28 21:00:08 +00:00
Makefile
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 Add CPU percentage limit enforcement to RCTL. The resouce name is "pcpu". 2012-10-26 16:01:08 +00:00
sched_ule.c Point args[0] not at the thread that is ending but at the one that 2013-04-15 17:21:02 +00:00
serdev_if.m
stack_protector.c
subr_acl_nfs4.c Fix bug where NFSv4 ACL enforcement code wouldn't unconditionally 2012-04-17 14:54:00 +00:00
subr_acl_posix1e.c Add module load/unload stubs. 2012-03-13 20:27:48 +00:00
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 Move an assertion to the right spot; only bus_dmamap_load_mbuf(9) 2013-06-01 11:42:47 +00:00
subr_bus.c Make detaching drivers from PCI devices more robust. While here, fix a 2013-06-27 20:21:54 +00:00
subr_busdma_bufalloc.c Create an architecture-agnostic buffer pool manager that uses uma(9) to 2012-12-20 00:34:54 +00:00
subr_clock.c
subr_counter.c Fix issues with zeroing and fetching the counters, on x86 and ppc64. 2013-07-01 02:48:27 +00:00
subr_devstat.c Fix build for kernels with dtrace hooks. 2012-07-11 18:50:50 +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
subr_firmware.c Correct sizeof usage 2012-06-25 05:41:16 +00:00
subr_hash.c Convert panic()s to KASSERT()s. This is an optimisation for 2012-01-23 16:31:46 +00:00
subr_hints.c Style fixes. 2012-09-04 23:16:55 +00:00
subr_kdb.c - Extend the KDB interface to add a per-debugger callback to print a 2012-04-12 17:43:59 +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 Several improvements to rmlock(9). Many of these are based on patches 2013-06-25 18:44:15 +00:00
subr_log.c MFcalloutng (r244255 by mav, with minor changes): 2013-03-04 16:07:55 +00:00
subr_mbpool.c
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 - Clean up timestamps in msgbuf code. The timestamps should now be 2012-03-19 00:36:32 +00:00
subr_param.c Implement the concept of the unmapped VMIO buffers, i.e. buffers which 2013-03-19 14:13:12 +00:00
subr_pcpu.c Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 2011-11-07 06:44:47 +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 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 Unlock in the error path to prevent a lock leak. 2012-05-31 17:27:05 +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 A library function shall not set errno to 0. 2013-05-16 18:13:10 +00:00
subr_scanf.c Xen netback driver rewrite. 2012-01-26 16:35:09 +00:00
subr_sglist.c
subr_sleepqueue.c Partially revert r195702. Deferring stops is now implemented via a set of 2013-03-18 17:23:58 +00:00
subr_smp.c - Correctly handle EWOULDBLOCK in quiesce_cpus 2012-12-19 20:08:06 +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 Fix build on ARM (and probably other platforms) 2012-12-28 06:52:53 +00:00
subr_taskqueue.c Extend taskqueue(9) to enable per-taskqueue callbacks. 2013-03-23 15:11:53 +00:00
subr_trap.c Partially revert r195702. Deferring stops is now implemented via a set of 2013-03-18 17:23:58 +00:00
subr_turnstile.c Update the comment: we do show the backtrace of misbehaving thread. 2013-02-17 21:37:32 +00:00
subr_uio.c Rename VM_OBJECT_LOCK(), VM_OBJECT_UNLOCK() and VM_OBJECT_TRYLOCK() to 2013-02-20 12:03:20 +00:00
subr_unit.c Correct double "the the" 2012-09-14 21:28:56 +00:00
subr_vmem.c - Add a general purpose resource allocator, vmem, from NetBSD. It was 2013-06-28 03:51:20 +00:00
subr_witness.c Make kassert_printf use __printflike. 2013-07-07 21:39:37 +00:00
sys_capability.c Use proper malloc type for ioctls white-list. 2013-05-23 21:07:26 +00:00
sys_generic.c Help out gcc. clang understands. 2013-06-29 04:35:04 +00:00
sys_pipe.c Add pipe2() system call. 2013-05-01 22:42:42 +00:00
sys_procdesc.c Add the wait6(2) system call. It takes POSIX waitid()-like process 2012-11-13 12:52:31 +00:00
sys_process.c Switch some "low-hanging fruit" to acquire read lock on vmobjects 2013-04-08 19:58:32 +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 aio_mlock() added: 2013-06-08 13:30:13 +00:00
syscalls.master Add new system call - aio_mlock(). The name speaks for itself. It allows 2013-06-08 13:27:57 +00:00
systrace_args.c aio_mlock() added: 2013-06-08 13:30:13 +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 Rename VM_OBJECT_LOCK(), VM_OBJECT_UNLOCK() and VM_OBJECT_TRYLOCK() to 2013-02-20 12:03:20 +00:00
tty_compat.c
tty_info.c Fix whitespace inconsistencies in TTY code. 2012-02-06 18:15:46 +00:00
tty_inq.c Use strchr() and strrchr(). 2012-01-02 12:12:10 +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 Allow O_CLOEXEC in posix_openpt() flags. 2013-03-21 21:39:15 +00:00
tty_tty.c
tty_ttydisc.c Correct SIGTTIN handling. 2012-10-25 09:05:21 +00:00
tty.c Merge Capsicum overhaul: 2013-03-02 00:53:12 +00:00
uipc_accf.c
uipc_cow.c
uipc_debug.c
uipc_domain.c - Implement two new system calls: 2013-03-02 21:11:30 +00:00
uipc_mbuf2.c Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
uipc_mbuf.c Fix bug in m_split() in a case when split len matches len of the 2013-03-29 14:10:40 +00:00
uipc_mqueue.c mqueue,ksem,shm: Fix race condition with setting UF_EXCLOSE. 2013-04-07 15:26:09 +00:00
uipc_sem.c Similar to 233760 and 236717, export some more useful info about the 2013-05-03 21:11:57 +00:00
uipc_shm.c mqueue,ksem,shm: Fix race condition with setting UF_EXCLOSE. 2013-04-07 15:26:09 +00:00
uipc_sockbuf.c When a previous call to sbsndptr() leaves sb->sb_sndptroff at the start of an 2013-06-19 03:08:01 +00:00
uipc_socket.c When the accept queue is full print the number of already pending 2013-05-08 14:13:14 +00:00
uipc_syscalls.c Item 1 in r248830 causes earlier exits from the sendfile(2), before 2013-05-09 16:05:51 +00:00
uipc_usrreq.c Fix receiving fd over unix socket broken in r247740. 2013-07-02 07:36:04 +00:00
vfs_acl.c Prezero the acl structure which is to be copied to usermode, to avoid 2013-02-06 15:18:46 +00:00
vfs_aio.c Add new system call - aio_mlock(). The name speaks for itself. It allows 2013-06-08 13:27:57 +00:00
vfs_bio.c Do not invalidate page of the B_NOCACHE buffer or buffer after an I/O 2013-07-11 05:36:26 +00:00
vfs_cache.c namecache sdt: freebsd doesn't support structured characters yet 2013-07-09 08:58:34 +00:00
vfs_cluster.c - Convert the bufobj lock to rwlock. 2013-05-31 00:43:41 +00:00
vfs_default.c - Convert the bufobj lock to rwlock. 2013-05-31 00:43:41 +00:00
vfs_export.c MFC 2013-02-21 21:59:35 +00:00
vfs_extattr.c Use a shared lock for VOP_GETEXTATTR, as it is a read-like operation. 2013-03-30 15:09:04 +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 Revert accidental commit. 2013-06-29 05:05:57 +00:00
vfs_lookup.c Do not call the VOP_LOOKUP() for the doomed directory vnode. The 2013-04-01 09:59:38 +00:00
vfs_mount.c Add vfs_mounted and vfs_unmounted events so that components can be informed 2013-07-10 15:35:25 +00:00
vfs_mountroot.c post mountroot event after a real/final root is mounted 2013-03-23 08:59:34 +00:00
vfs_subr.c Be more generous when donating the current thread time to the owner of 2013-06-03 17:36:43 +00:00
vfs_syscalls.c - Fix nullfs vnode reference leak in nullfs_reclaim_lowervp(). The 2013-05-11 11:17:44 +00:00
vfs_vnops.c There are several code sequences like 2013-07-09 20:49:32 +00:00
vnode_if.src remove vop_lookup_pre and vop_lookup_post 2012-11-22 10:36:10 +00:00