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e7037673ca
freebsd-nq/sys
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Alexander Motin e7037673ca Make CTL ramdisk backend a real RAM disk. 
If "capacity" LU option is set, ramdisk backend now implements featured
thin provisioned disk, storing data in malloc(9) allocated memory blocks
of pblocksize bytes (default PAGE_SIZE or 4KB).  Additionally ~0.2% of LU
size is used for indirection tree (bigger pblocksize reduce the overhead).
Backend supports all unmap and anchor operations.  If configured capacity
is overflowed, proper error conditions are reported.

If "capacity" LU option is not set, the backend operates mostly the same
as before without allocating real storage: writes go to nowhere, reads
return zeroes, reporting that all LBAs are unmapped.

This backend is still mostly oriented on testing and benchmarking (it is
still a volatile RAM disk), but now it should allow to run real FS tests,
not only simple dumb dd.

MFC after:	2 weeks
2017-01-24 12:13:41 +00:00
..
amd64 Use SFENCE for ordering CLFLUSHOPT. 2017-01-20 19:08:44 +00:00
arm Handle imx6 erratum ERR004346... to reboot, clear the SRS bit twice within 2017-01-24 02:09:30 +00:00
arm64 Remove a static function declaration for a function not implemented. 2017-01-23 16:40:20 +00:00
boot [am335x] Use upstream tda19988 framer node from upstream DTS 2017-01-23 19:20:55 +00:00
bsm
cam Make CTL ramdisk backend a real RAM disk. 2017-01-24 12:13:41 +00:00
cddl Remove the DTRACEHIOC_ADD ioctl. 2017-01-23 02:21:06 +00:00
compat Catch up with changes to structure member names. 2017-01-17 22:05:52 +00:00
conf Add support for the Realtek RTL8192EU chipset. 2017-01-24 02:35:38 +00:00
contrib Add support for the Realtek RTL8192EU chipset. 2017-01-24 02:35:38 +00:00
crypto libmd: add noexec stack annotation in skein_block_asm.s 2017-01-07 19:26:25 +00:00
ddb Revert r311952. 2017-01-14 22:06:25 +00:00
dev hyperv/hn: add devctl_notify for VF_UP/DOWN events 2017-01-24 09:27:13 +00:00
fs Remove mistakenly merged field. 2017-01-19 20:03:26 +00:00
gdb
geom Report disk addition errors on add or create subcommand. 2017-01-20 13:49:04 +00:00
gnu Add Ingenic X1000 DTS files (unofficial). 2016-11-19 15:03:49 +00:00
i386 Use SFENCE for ordering CLFLUSHOPT. 2017-01-20 19:08:44 +00:00
isa
kern Add comments explaining unobvious td_critnest adjustments in 2017-01-22 19:41:42 +00:00
kgssapi
libkern libkern: Remove obsolete 'register' keyword 2017-01-12 17:02:29 +00:00
mips Enable TMPFS on MALTA so we can use it on minimalist disk images without 2017-01-21 09:08:27 +00:00
modules Add support for the Realtek RTL8192EU chipset. 2017-01-24 02:35:38 +00:00
net ifnet: introduce event handlers for ifup/ifdown events 2017-01-24 09:19:46 +00:00
net80211 net80211: fix flags setup for HT40 5GHz channels. 2017-01-22 23:45:59 +00:00
netgraph mppc - Finish pluging NETGRAPH_MPPC_COMPRESSION. 2017-01-20 00:02:11 +00:00
netinet Implement kernel support for hardware rate limited sockets. 2017-01-18 13:31:17 +00:00
netinet6 Implement kernel support for hardware rate limited sockets. 2017-01-18 13:31:17 +00:00
netipsec Add direction argument to ipsec_setspidx_inpcb() function. 2017-01-08 12:40:07 +00:00
netnatm
netpfil Initialize IPFW static rules rmlock with RM_RECURSE flag. 2017-01-17 10:50:28 +00:00
netsmb
nfs
nfsclient
nfsserver
nlm
ofed Move the ConnectX-3 and ConnectX-2 driver from sys/ofed into sys/dev/mlx4 2016-09-30 08:23:06 +00:00
opencrypto Add support for the fpu_kern(9) KPI on arm64. It hooks into the existing 2016-10-20 09:22:10 +00:00
pc98 Add a COMPAT_FREEBSD11 kernel option. 2016-12-09 18:54:12 +00:00
powerpc Avoid using non-zero argument for __builtin_frame_address(). 2017-01-23 04:03:12 +00:00
riscv Add RISC-V support for truss(1) 2017-01-24 09:41:44 +00:00
rpc
security Audit 'fd' and 'cmd' arguments to fcntl(2), and when generating BSM, 2016-11-22 00:41:24 +00:00
sparc64 Trim a few comments on platforms that did not implement mmap of /dev/kmem. 2017-01-13 21:52:53 +00:00
sys ifnet: introduce event handlers for ifup/ifdown events 2017-01-24 09:19:46 +00:00
teken
tests
tools Replace using of objdump with elfdump 2017-01-10 18:46:40 +00:00
ufs ffs_vnops: Simplify extattr access 2017-01-19 16:46:05 +00:00
vm Avoid unnecessary page lookups in vm_object_madvise(). 2017-01-15 03:50:08 +00:00
x86 "Buses" is the preferred plural of "bus" 2017-01-15 17:54:01 +00:00
xdr
xen "Buses" is the preferred plural of "bus" 2017-01-15 17:54:01 +00:00
Makefile