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5 Commits

Author SHA1 Message Date
Jaakko Heinonen
5a279fc5fc In g_zero_destroy_geom(), return 0 instead of EBUSY in the success case. 
EBUSY was probably used as a workaround for the deadlock fixed in r207671.

Approved by:	pjd
X-MFC after:	r207671
 2010-05-10 19:08:53 +00:00
Pawel Jakub Dawidek
38ea96ac99 Remove trailing spaces. 2006-02-01 12:06:01 +00:00
Pawel Jakub Dawidek
a1c10dcb4c Move $FreeBSD$ from comment to __FBSDID(). 2006-01-17 11:48:16 +00:00
Pawel Jakub Dawidek
24e1fdcd1a - Allow to specify the byte which will be used for filling read buffer. 
- Improve sysctl description a bit.

Submitted by:	Ivan Voras <ivoras@gmail.com>
 2005-12-08 23:06:59 +00:00
Pawel Jakub Dawidek
565bc10111 Add a very simple and small GEOM class - ZERO. 
It creates very huge provider (41PB) /dev/gzero.
On BIO_READ request it zero-fills bio_data and on BIO_WRITE it does nothing.
You can also set kern.geom.zero.clear sysctl to 0 to do nothing even for
BIO_READ.

I'm using it for performance testing where it is very helpful.

MFC after:	3 days
 2005-07-25 10:03:16 +00:00