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Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: Documentation/feature-removal-schedule.txt drivers/scsi/fcoe/fcoe.c net/core/drop_monitor.c net/core/net-traces.c
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.gitignore

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# subdirectories here. Add them in the ".gitignore" file
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# in that subdirectory instead.
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#
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# NOTE! Please use 'git-ls-files -i --exclude-standard'
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# NOTE! Please use 'git ls-files -i --exclude-standard'
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# command after changing this file, to see if there are
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# any tracked files which get ignored after the change.
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#
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*.elf
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*.bin
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*.gz
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*.lzma
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*.patch
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#
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# Top-level generic files
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cscope.*
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ncscope.*
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# gnu global files
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GPATH
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GRTAGS
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GSYMS
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GTAGS
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*.orig
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*~
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\#*#

Documentation/ABI/testing/sysfs-block

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Indicates whether the block layer should automatically
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generate checksums for write requests bound for
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devices that support receiving integrity metadata.
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What: /sys/block/<disk>/alignment_offset
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Date: April 2009
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Contact: Martin K. Petersen <[email protected]>
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Description:
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Storage devices may report a physical block size that is
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bigger than the logical block size (for instance a drive
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with 4KB physical sectors exposing 512-byte logical
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blocks to the operating system). This parameter
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indicates how many bytes the beginning of the device is
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offset from the disk's natural alignment.
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What: /sys/block/<disk>/<partition>/alignment_offset
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Date: April 2009
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Contact: Martin K. Petersen <[email protected]>
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Description:
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Storage devices may report a physical block size that is
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bigger than the logical block size (for instance a drive
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with 4KB physical sectors exposing 512-byte logical
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blocks to the operating system). This parameter
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indicates how many bytes the beginning of the partition
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is offset from the disk's natural alignment.
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What: /sys/block/<disk>/queue/logical_block_size
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Date: May 2009
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Contact: Martin K. Petersen <[email protected]>
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Description:
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This is the smallest unit the storage device can
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address. It is typically 512 bytes.
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What: /sys/block/<disk>/queue/physical_block_size
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Date: May 2009
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Contact: Martin K. Petersen <[email protected]>
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Description:
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This is the smallest unit the storage device can write
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without resorting to read-modify-write operation. It is
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usually the same as the logical block size but may be
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bigger. One example is SATA drives with 4KB sectors
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that expose a 512-byte logical block size to the
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operating system.
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What: /sys/block/<disk>/queue/minimum_io_size
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Date: April 2009
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Contact: Martin K. Petersen <[email protected]>
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Description:
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Storage devices may report a preferred minimum I/O size,
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which is the smallest request the device can perform
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without incurring a read-modify-write penalty. For disk
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drives this is often the physical block size. For RAID
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arrays it is often the stripe chunk size.
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What: /sys/block/<disk>/queue/optimal_io_size
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Date: April 2009
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Contact: Martin K. Petersen <[email protected]>
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Description:
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Storage devices may report an optimal I/O size, which is
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the device's preferred unit of receiving I/O. This is
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rarely reported for disk drives. For RAID devices it is
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usually the stripe width or the internal block size.
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Where: /sys/bus/pci/devices/<dev>/ccissX/cXdY/model
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Date: March 2009
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Kernel Version: 2.6.30
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Description: Displays the SCSI INQUIRY page 0 model for logical drive
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Y of controller X.
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Where: /sys/bus/pci/devices/<dev>/ccissX/cXdY/rev
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Date: March 2009
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Kernel Version: 2.6.30
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Description: Displays the SCSI INQUIRY page 0 revision for logical
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drive Y of controller X.
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Where: /sys/bus/pci/devices/<dev>/ccissX/cXdY/unique_id
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Date: March 2009
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Kernel Version: 2.6.30
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Description: Displays the SCSI INQUIRY page 83 serial number for logical
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drive Y of controller X.
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Where: /sys/bus/pci/devices/<dev>/ccissX/cXdY/vendor
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Date: March 2009
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Kernel Version: 2.6.30
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Description: Displays the SCSI INQUIRY page 0 vendor for logical drive
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Y of controller X.
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Where: /sys/bus/pci/devices/<dev>/ccissX/cXdY/block:cciss!cXdY
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Date: March 2009
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Kernel Version: 2.6.30
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Description: A symbolic link to /sys/block/cciss!cXdY
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What: /sys/devices/system/cpu/cpu*/cache/index*/cache_disable_X
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Date: August 2008
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KernelVersion: 2.6.27
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Description: These files exist in every cpu's cache index directories.
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There are currently 2 cache_disable_# files in each
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directory. Reading from these files on a supported
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processor will return that cache disable index value
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for that processor and node. Writing to one of these
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files will cause the specificed cache index to be disabled.
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Currently, only AMD Family 10h Processors support cache index
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disable, and only for their L3 caches. See the BIOS and
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Kernel Developer's Guide at
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http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/31116-Public-GH-BKDG_3.20_2-4-09.pdf
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for formatting information and other details on the
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cache index disable.
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