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272461 |
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02-Oct-2014 |
gjb |
Copy stable/10@r272459 to releng/10.1 as part of the 10.1-RELEASE process.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
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260385 |
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06-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 |
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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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254275 |
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13-Aug-2013 |
mav |
Return error when opening read-only volumes (like RAID4/5/...) for writing. Previously opens succeeded, but actual write operations returned errors.
Requested by: peter MFC after: 2 weeks
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254271 |
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13-Aug-2013 |
mav |
Oops, wrong constant at r254269.
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254269 |
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13-Aug-2013 |
mav |
Fix reasonable but safe Clang warnings.
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240465 |
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13-Sep-2012 |
mav |
Add global and per-module sysctls/tunables to enable/disable metadata taste. That should help to handle some cases when disk has some RAID metadata that should be ignored, especially during boot.
MFC after: 3 days
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235076 |
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06-May-2012 |
mav |
Add support for RAID5R. Slightly improve support for RAIDMDF.
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234993 |
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04-May-2012 |
mav |
Implement read-only support for volumes in optimal state (without using redundancy) for the following RAID levels: RAID4/5E/5EE/6/MDF.
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234458 |
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19-Apr-2012 |
mav |
Add to GEOM RAID class module for reading non-degraded RAID5 volumes and some environment to differentiate 4 possible RAID5 on-disk layouts.
Tested with Intel and AMD RAID BIOSes.
MFC after: 2 weeks
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