Christoph,
> We will only have sense data if the command exectured and got a SCSI
> result, so this is pointless.
"executed"
Reviewed-by: Martin K. Petersen <martin.peter...@oracle.com>
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y the REQ_ prefix in bios since the flags were
consolidated a while back. When I attempted to fix the READ/WRITE mess I
used a BLK_ prefix as a result.
Anyway. Just bikeshedding...
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ces and everything looks sensible to me.
I wonder what the best approach is to move a patch set with this many
stakeholders forward? Set a "speak now or forever hold your peace"
review deadline?
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headache.
I am entirely in favor of this patch.
It was a big chunk of changes to read through but I did not spot any
obvious problems or polarity reversals. It would be nice to get the
respective fs/md/target driver folks to check their portions, though.
Reviewed-by: Martin K. Petersen martin.peter
echo scsi:scsi_dispatch_cmd_start
Chris /sys/kernel/debug/tracing/set_event echo 1
Chris /sys/kernel/debug/tracing/tracing_on cat
Chris /sys/kernel/debug/tracing/trace_pipe
MMC doesn't go through SCSI like ATA does.
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scsi:scsi_dispatch_cmd_start /sys/kernel/debug/tracing/set_event
# echo 1 /sys/kernel/debug/tracing/tracing_on
[do stuff]
# cat /sys/kernel/debug/tracing/trace
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. There are a few exceptions to this such as
direct I/O, legacy filesystems using bufferheads and raw block device
access.
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reason for a drive vendor to
implement that page unless the drive actually supports queued trim. And
consequently it's perfectly normal for that page to be absent.
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.
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code to hdparm, or both...
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.
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of weeks ago at the
Linux Storage Workshop.
In the meantime: Can you point me to the relevant eMMC stuff so I can
see how many tiers or classes we have to work with there?
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of the standard.
I haven't looked into this for a long time. Last time I talked to the
NFS folks they seemed to think it would be possible to bridge the two
methods.
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no window of error. But obviously the ideal case is where
the same IMD can be passed throughout the stack without conversion.
Not sure what you use for file service? I believe NFSv4 allows for
checksums to be passed along. I have not looked at them closely yet,
though.
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that reported the right thing
but which did in fact return the old data afterwards.
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perspective).
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anything that can be done in a
Dmitri filesystem to minimise the damage of a lost eraseblock.
The problem is that we have no way of knowing what's inside each erase
block. We don't even know how big the erase block is.
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and/or dt.
In the filesystem case it was trivial to map out the affected files in
debugfs and correlate those to a logical region on the disk.
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Dmitri == Dmitri Nikulin dniku...@gmail.com writes:
Dmitri Already SanDisk are offering a proprietary Extreme FFS
Dmitri (perhaps even based on Unix FFS) for Windows Vista only.
Extreme FFS is SanDisk's next generation FTL/firmware. It's not a
filesystem that plugs into the OS.
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as such.
The article you posted references some benchmarketing numbers involving
Vista. That does not imply it's a Windows-only product.
http://en.wikipedia.org/wiki/ExtremeFFS
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