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1469 Commits

Author SHA1 Message Date
pjd
adf9b82198 MFp4: Hide under '#ifdef _KERNEL' only what's really needed. 2007-04-10 12:52:14 +00:00
pjd
648f58f532 Try to stabilize ZFS with regard to memory consumption: 
- Allow to shrink ARC down to 16MB (instead of 64MB).
- Set arc_max to 1/2 of kmem_map by default.
- Start freeing things earlier when low memory situation is detected.
- Serialize execution of arc_lowmem().

I decided to setup minimum ZFS memory requirements to 512MB of RAM and 256MB of
kmem_map size. If there is less RAM or kmem_map, a warning will be printed.
World is cruel, be no better. In other words: modern file system requires
modern hardware:)

From ZFS administration guide:

"Currently the minimum amount of memory recommended to install a Solaris
 system is 512 Mbytes. However, for good ZFS performance, at least one
 Gbyte or more of memory is recommended."
 2007-04-10 02:35:57 +00:00
pjd
9cb5f5d713 Reduce diff against vendor - we have now stronger check for "mutex already 
initialized", so we can go back to kmem_alloc().
 2007-04-10 02:19:12 +00:00
pjd
2ffc30645a Remove unused #define. 2007-04-09 23:30:28 +00:00
pjd
a26ee9422b Instead of detecting if lock is already initialized based on standard 1 bit 
check, use more accurate 13 bits check. We had too many false-positives with
the standard check.

Reported by:	mlaier
 2007-04-09 01:05:31 +00:00
pjd
1d4ef1883e We don't have to wait for the root file system to be mounted anymore, now that 
kobj KPI supports operating on files loaded by the loader.
 2007-04-09 00:03:45 +00:00
pjd
00da9008fd Drop the Giant lock before calling zfs_domount(), which is held when 
mounting root file system.
 2007-04-09 00:02:11 +00:00
pjd
afcf861a95 Move zpool.cache from /etc/zfs/ to /boot/zfs/, so we can keep it on 
dedicated /boot/ file system and use ZFS for the root file system.
 2007-04-08 23:59:39 +00:00
pjd
e47fb9eabd Extend kobj compatibility KPI to support operating on files before and 
after the root file system is mounted.
This is one of the changes that will allow to put root file system on ZFS.
 2007-04-08 23:57:08 +00:00
pjd
2b260dcd5e MFp4: Synchronize with recent OpenSolaris changes. 2007-04-08 16:29:25 +00:00
pjd
12036d2691 - Use 'name=value' so it can be properly recognized by devd(8). 
- Use only subclass as devd's type.
 2007-04-08 15:55:48 +00:00
pjd
dae6c83594 Take vnode pointer and hold it under znode lock, so we won't race with 
zfs_reclaim(). This may or may not fix problem reported by kris, but it's
definiatelly better that way.
 2007-04-08 10:29:14 +00:00
pjd
65ca3ed324 Move atomic.S files to directories that better fit OpenSolaris directory 
layout.
 2007-04-07 23:54:54 +00:00
pjd
836b7049f4 Fix libzpool compilation. 
Reported by:	des
 2007-04-07 23:47:14 +00:00
pjd
786ba2b377 Limit the number of system taskq threads to the number of CPUs. 
They are only used when there is a need for reducing namecache.

Observed by:	kris, csjp
 2007-04-07 21:41:11 +00:00
des
494d7fa591 Fix some type mismatches. 
Reviewed by:	pjd@
 2007-04-07 19:11:41 +00:00
pjd
2b4a45b0fc Allow to tune maximum and minimum memory used by ARC. 2007-04-07 19:10:50 +00:00
pjd
6914e743a6 Add missing mutex_init() which was causing assertion panic when on clone 
destruction.

Reported by:	kris
 2007-04-07 11:04:37 +00:00
pjd
3b005d3302 Please welcome ZFS - The last word in file systems. 
ZFS file system was ported from OpenSolaris operating system. The code in under
CDDL license.

I'd like to thank all SUN developers that created this great piece of software.

Supported by:	Wheel LTD (http://www.wheel.pl/)
Supported by:	The FreeBSD Foundation (http://www.freebsdfoundation.org/)
Supported by:	Sentex (http://www.sentex.net/)
 2007-04-06 01:09:06 +00:00