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284591 |
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19-Jun-2015 |
avg |
illums compat: use flsl/flsll for highbit/highbit64
Do that only when when fast inline versions are available. At the moment that can be the case only in the kernel and not for all platforms.
The original code uses the binary search and that's kept as a fallback. This is a micro optimization.
Differential Revision: https://reviews.freebsd.org/D2839 Reviewed by: delphij, mahrens, mav MFC after: 17 days
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284520 |
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17-Jun-2015 |
avg |
Revert r284511 because it caused build failures on many platforms
The problem is that when inline versions of flsl and flsll are not available, then libkern.h must be included for their declarations in kernel sources. The fix would be trivial, but I would like to figure out first if it even makes sense to use the libkern provided implementations.
Reported by: bz Pointyhat to: avg
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185029 |
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17-Nov-2008 |
pjd |
Update ZFS from version 6 to 13 and bring some FreeBSD-specific changes.
This bring huge amount of changes, I'll enumerate only user-visible changes:
- Delegated Administration
Allows regular users to perform ZFS operations, like file system creation, snapshot creation, etc.
- L2ARC
Level 2 cache for ZFS - allows to use additional disks for cache. Huge performance improvements mostly for random read of mostly static content.
- slog
Allow to use additional disks for ZFS Intent Log to speed up operations like fsync(2).
- vfs.zfs.super_owner
Allows regular users to perform privileged operations on files stored on ZFS file systems owned by him. Very careful with this one.
- chflags(2)
Not all the flags are supported. This still needs work.
- ZFSBoot
Support to boot off of ZFS pool. Not finished, AFAIK.
Submitted by: dfr
- Snapshot properties
- New failure modes
Before if write requested failed, system paniced. Now one can select from one of three failure modes: - panic - panic on write error - wait - wait for disk to reappear - continue - serve read requests if possible, block write requests
- Refquota, refreservation properties
Just quota and reservation properties, but don't count space consumed by children file systems, clones and snapshots.
- Sparse volumes
ZVOLs that don't reserve space in the pool.
- External attributes
Compatible with extattr(2).
- NFSv4-ACLs
Not sure about the status, might not be complete yet.
Submitted by: trasz
- Creation-time properties
- Regression tests for zpool(8) command.
Obtained from: OpenSolaris
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