Konstantin Belousov afe55ca373 Implement 'fast path' for the vm page fault handler. Or, it could be ... called a scalable path. When several preconditions hold, the vm object lock for the object containing the faulted page is taken in read mode, instead of write, which allows parallel faults processing in the region. Namely, the fast path is taken when the faulted page already exists and does not need copy on write, is already fully valid, and not busy. For technical reasons, fast path is avoided when the fault is the first write on the vnode object, or when the fault is for wiring or debugger read or write. On the fast path, pmap_enter(9) is passed the PMAP_ENTER_NOSLEEP flag, since object lock is kept. Pmap might fail to create the entry, in which case the fallback to slow path is performed. Reviewed by: alc Tested by: pho (previous version) Hardware provided and hosted by: The FreeBSD Foundation and Sentex Data Communications Sponsored by: The FreeBSD Foundation MFC after: 2 week		2014-08-15 07:30:14 +00:00
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amd64	Update i386/NOTES and amd64/NOTES files to contain the complete list of	2014-08-14 18:29:55 +00:00
arm	Print the symbolic bit names for the status when we get a timeout.	2014-08-14 23:17:33 +00:00
boot	Quiesce warning about discarding a const qualifier in assignement.	2014-08-08 21:47:47 +00:00
bsm	IFp4 @1192291:	2014-04-07 20:44:00 +00:00
cam	Added 4K quirks for Corsair Force GT and Samsung 840 SSDs	2014-08-14 13:57:17 +00:00
cddl	MFV r269542:	2014-08-05 00:07:21 +00:00
compat	All mbuf external free functions never fail, so let them be void.	2014-07-11 13:58:48 +00:00
conf	Allow iwn105fw and iwn135 firmwares to be compiled into the kernel.	2014-08-14 18:16:27 +00:00
contrib	Add some more OS_MARK() probes to the AR9300 HAL.	2014-08-11 00:03:50 +00:00
crypto	Put the aesni_cipher_setup() and aesni_cipher_process() functions into	2014-06-24 06:55:49 +00:00
ddb	ins is only set and unused, but only when we're not doing software	2014-08-14 16:01:51 +00:00
dev	Delete pp_isadma. It isn't use, and the code that used it has been	2014-08-14 16:01:38 +00:00
fs	Change the NFS server's printf related to hitting	2014-08-10 01:13:32 +00:00
gdb	Pull in r267961 and r267973 again. Fix for issues reported will follow.	2014-06-28 03:56:17 +00:00
geom	Turn off kern.geom.part.mbr.enforce_chs by default.	2014-08-12 10:31:31 +00:00
gnu	Revert r269528; this was not the right way to bring these changes in.	2014-08-05 22:38:49 +00:00
i386	Update i386/NOTES and amd64/NOTES files to contain the complete list of	2014-08-14 18:29:55 +00:00
isa	Remove vestiges of knowing the ISA bus, which we gave up on around 20	2014-03-19 21:03:04 +00:00
kern	Add a new loader tunable, vm.kmem_zmax which allows a system administrator	2014-08-14 05:31:39 +00:00
kgssapi
libkern	Fix unwind-info errors in our hand-written arm assembler code.	2014-08-01 18:24:44 +00:00
mips	Change pmap_enter(9) interface to take flags parameter and superpage	2014-08-08 17:12:03 +00:00
modules	Similar to r250143, optimize MODULES_OVERRIDE such that SUBDIR isn't	2014-08-11 17:04:04 +00:00
net	Change pr_output's prototype to avoid the need for explicit casts.	2014-08-15 02:43:02 +00:00
net80211	Undo r195846 for now - allow raw frame transmit in monitor mode.	2014-08-10 08:35:42 +00:00
netgraph	Remove any stale mbuf tags from packets being injected into a netgraph	2014-07-01 07:54:12 +00:00
netinet	Change pr_output's prototype to avoid the need for explicit casts.	2014-08-15 02:43:02 +00:00
netinet6	Change pr_output's prototype to avoid the need for explicit casts.	2014-08-15 02:43:02 +00:00
netipsec	Change pr_output's prototype to avoid the need for explicit casts.	2014-08-15 02:43:02 +00:00
netnatm
netpfil	Fix synproxy with IPv6. pf_test6() was missing a check for M_SKIP_FIREWALL.	2014-08-15 04:35:34 +00:00
netsmb	Remove redundant unlock.	2014-04-17 12:22:08 +00:00
nfs	Fix/improve fhe_stats sysctl output.	2014-06-14 12:26:12 +00:00
nfsclient
nfsserver	Change NFS readdir() to only ignore cookies preceding the given offset for	2014-07-01 20:00:35 +00:00
nlm
ofed	- Fix radix tree memory leakage when unloading modules using radix	2014-08-12 11:45:57 +00:00
opencrypto
pc98	Compile fixes:	2014-06-28 17:36:18 +00:00
pci	Fix various NIC drivers to properly cleanup static DMA resources.	2014-06-11 14:53:58 +00:00
powerpc	Fix two files forgotten in r269783 (vt_generate_cons_palette)	2014-08-10 22:24:14 +00:00
rpc	Merge the NFSv4.1 server code in projects/nfsv4.1-server over	2014-07-01 20:47:16 +00:00
security	Pull in r267961 and r267973 again. Fix for issues reported will follow.	2014-06-28 03:56:17 +00:00
sparc64	On sparc64, do not keep mappings for the destroyed sf_bufs. Sparc64	2014-08-10 16:59:39 +00:00
sys	Change pr_output's prototype to avoid the need for explicit casts.	2014-08-15 02:43:02 +00:00
teken
tools	Call cpp with -P to avoid printing line markings.	2014-06-10 06:24:01 +00:00
ufs	Revision r269457 removed the Giant around mount and unmount code, but	2014-08-12 09:33:00 +00:00
vm	Implement 'fast path' for the vm page fault handler. Or, it could be	2014-08-15 07:30:14 +00:00
x86	atpic: make sure atpic_init is called after IO APIC initialization	2014-08-07 17:00:50 +00:00
xdr
xen	xen: implement event channel PIRQ support	2014-08-04 08:42:29 +00:00
Makefile	Remove ia64.	2014-07-07 00:27:09 +00:00