freebsd-dev/sys/conf
Xin LI ef17620fc8 MFV r245512:
* Illumos zfs issue #3035 [1] LZ4 compression support in ZFS.

LZ4 is a new high-speed BSD-licensed compression algorithm created
by Yann Collet that delivers very high compression and decompression
performance compared to lzjb (>50% faster on compression, >80% faster
on decompression and around 3x faster on compression of incompressible
data), while giving better compression ratio [1].

This version of LZ4 corresponds to upstream's [2] revision 85.

Please note that for obvious reasons this is not backward read
compatible.  This means once a pool have LZ4 compressed data, these
data can no longer be read by older ZFS implementations.

Local changes:

 - On-stack hash table disabled and using kernel slab allocator
   instead, at this time.  This requires larger kernel thread stack
   for zio workers.  This may change in the future should we adjusted
   the zio workers' thread stack size.
 - likely and unlikely will be undefined if they are already defined,
   this is required for i386 XEN build.
 - Removed De Bruijn sequence based __builtin_ctz family of builtins
   in favor of the latter.  Both GCC and clang supports these builtins.
 - Changed the way the LZ4 code detects endianness.
 - Manual pages modifications to mention the feature based on Illumos
   counterpart.
 - Boot loader changes to make it support LZ4 decompression.

[1] https://www.illumos.org/issues/3035
[2] http://code.google.com/p/lz4/source/list

Obtained from:	Illumos (13921:9d721847e469)
Tested on:	FreeBSD/amd64
MFC after:	1 month
2013-02-09 06:39:28 +00:00
..
files MFV r245512: 2013-02-09 06:39:28 +00:00
files.amd64 - Don't include date and time the driver is built, this is useful for 2013-01-22 05:41:34 +00:00
files.arm Add the required __aeabi_* functions the kernel uses when built for ARM EABI 2013-01-17 09:37:42 +00:00
files.i386 - Don't include date and time the driver is built, this is useful for 2013-01-22 05:41:34 +00:00
files.ia64 Hoist the MI compat_freebsd32 files up into files from files.*. 2012-10-25 04:30:48 +00:00
files.mips Merge Perforce changeset 219925 to head: 2013-01-12 15:58:20 +00:00
files.pc98 Disconnect non-MPSAFE SMBFS from the build in preparation for dropping 2012-10-18 12:04:56 +00:00
files.powerpc Add the bus attachment for the embedded EHCI HC. 2012-11-03 21:08:27 +00:00
files.sparc64 Disconnect non-MPSAFE SMBFS from the build in preparation for dropping 2012-10-18 12:04:56 +00:00
kern.mk Introduce a new make variable COMPILER_TYPE that specifies what 2012-09-13 16:00:46 +00:00
kern.post.mk Remove the links: target. It too is homelessly outdated since it 2012-10-25 04:55:04 +00:00
kern.pre.mk Fix LINT build for arm: NOTES defines LDFLAGS by way of a make option 2012-11-29 03:48:39 +00:00
kmod_syms.awk
kmod.mk Split sdhci driver in two parts: sdhci and sdhci_pci. 2012-10-16 01:10:43 +00:00
ldscript.amd64
ldscript.arm When DDB is enabled and we are building for the ARM EABI include the unwind 2013-01-19 22:08:16 +00:00
ldscript.i386
ldscript.ia64
ldscript.mips
ldscript.mips.cfe
ldscript.mips.mips64
ldscript.mips.octeon1
ldscript.powerpc
ldscript.powerpc64
ldscript.sparc64
Makefile.amd64 Remove duplication and centralize testing of various config(8)ed features. 2012-09-12 14:19:40 +00:00
Makefile.arm Don't build the kernel with Thumb interworking as we don't support Thumb. 2013-01-23 07:27:38 +00:00
Makefile.i386
Makefile.ia64
Makefile.mips
Makefile.pc98 MFi386: r232263 2012-11-10 14:56:35 +00:00
Makefile.powerpc Remove duplication and centralize testing of various config(8)ed features. 2012-09-12 14:19:40 +00:00
Makefile.sparc64
makeLINT.mk Disable INET6 support in modules when building the LINT-NOINET6 kernel. 2012-04-04 21:31:20 +00:00
makeLINT.sed
newvers.sh print compiler version in the kernel banner 2013-02-02 11:58:35 +00:00
NOTES In r246282 the KTR_ENTRIES was specified with syntax error, fix it so 'make 2013-02-08 22:41:48 +00:00
options allow for large KTR_ENTRIES values by allocating ktr_buf using malloc(9) 2013-02-03 09:57:39 +00:00
options.amd64 Rename the IVY_RNG option to RDRAND_RNG. 2012-09-13 10:12:16 +00:00
options.arm Replace generic ARM11 option with more specific 2012-12-20 04:32:02 +00:00
options.i386 Rename the IVY_RNG option to RDRAND_RNG. 2012-09-13 10:12:16 +00:00
options.ia64 Port the new PV entry allocator from amd64/i386. This allocator has two 2012-10-26 03:02:39 +00:00
options.mips Add basic support for the Ubiquiti EdgeRouter Lite. 2013-01-02 23:17:50 +00:00
options.pc98
options.powerpc Initial support for running FreeBSD on the Nintendo Wii. We're able to 2012-08-21 06:31:26 +00:00
options.sparc64
systags.sh
WITHOUT_SOURCELESS
WITHOUT_SOURCELESS_HOST
WITHOUT_SOURCELESS_UCODE