296373 |
04-Mar-2016 |
marius |
- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1 builds. - Update newvers.sh to reflect RC1. - Update __FreeBSD_version to reflect 10.3. - Update default pkg(8) configuration to use the quarterly branch.
Approved by: re (implicit) |
260385 |
07-Jan-2014 |
scottl |
MFC Alexander Motin's GEOM direct dispatch work:
r256603: Introduce new function devstat_end_transaction_bio_bt(), adding new argument to specify present time. Use this function to move binuptime() out of lock, substantially reducing lock congestion when slow timecounter is used.
r256606: Move g_io_deliver() out of the lock, as required for direct dispatch. Move g_destroy_bio() out too to reduce lock scope even more.
r256607: Fix passing uninitialized bio_resid argument to g_trace().
r256610: Add unmapped I/O support to GEOM RAID.
r256830: Restore BIO_UNMAPPED and BIO_TRANSIENT_MAPPING in biodonne() when unmapping temporary mapped buffer. That fixes double unmap if biodone() called twice for the same BIO (but with different done methods).
r256880: Merge GEOM direct dispatch changes from the projects/camlock branch.
When safety requirements are met, it allows to avoid passing I/O requests to GEOM g_up/g_down thread, executing them directly in the caller context. That allows to avoid CPU bottlenecks in g_up/g_down threads, plus avoid several context switches per I/O.
r259247: Fix bug introduced at r256607. We have to recalculate bp_resid here since sizes of original and completed requests may differ due to end of media.
Testing of the stable/10 merge was done by Netflix, but all of the credit goes to Alexander and iX Systems.
Submitted by: mav Sponsored by: iX Systems
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256281 |
10-Oct-2013 |
gjb |
Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
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254936 |
26-Aug-2013 |
mav |
MFprojects/camlock r254895: Add unmapped BIO support to GEOM ZERO if kern.geom.zero.clear is cleared.
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227309 |
07-Nov-2011 |
ed |
Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.
The SYSCTL_NODE macro defines a list that stores all child-elements of that node. If there's no SYSCTL_DECL macro anywhere else, there's no reason why it shouldn't be static.
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207877 |
10-May-2010 |
jh |
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
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155174 |
01-Feb-2006 |
pjd |
Remove trailing spaces.
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154473 |
17-Jan-2006 |
pjd |
Move $FreeBSD$ from comment to __FBSDID().
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153251 |
08-Dec-2005 |
pjd |
- 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>
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148382 |
25-Jul-2005 |
pjd |
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
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