- 19 10月, 2016 1 次提交
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由 Hannes Reinecke 提交于
Implement zoned block device zone information reporting and reset. Zone information are reported as struct blk_zone. This implementation does not differentiate between host-aware and host-managed device models and is valid for both. Two functions are provided: blkdev_report_zones for discovering the zone configuration of a zoned block device, and blkdev_reset_zones for resetting the write pointer of sequential zones. The helper function blk_queue_zone_size and bdev_zone_size are also provided for, as the name suggest, obtaining the zone size (in 512B sectors) of the zones of the device. Signed-off-by: NHannes Reinecke <hare@suse.de> [Damien: * Removed the zone cache * Implement report zones operation based on earlier proposal by Shaun Tancheff <shaun.tancheff@seagate.com>] Signed-off-by: NDamien Le Moal <damien.lemoal@hgst.com> Reviewed-by: NChristoph Hellwig <hch@lst.de> Reviewed-by: NMartin K. Petersen <martin.petersen@oracle.com> Reviewed-by: NShaun Tancheff <shaun.tancheff@seagate.com> Tested-by: NShaun Tancheff <shaun.tancheff@seagate.com> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 19 9月, 2016 1 次提交
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由 Stephen Rothwell 提交于
and building block/blk-mq-pci.o should depend on CONFIG_BLOCK Fixes: 973c4e37 ("blk-mq: provide a default queue mapping for PCI device") Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Reviewed-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 17 9月, 2016 1 次提交
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由 Omar Sandoval 提交于
This is a generally useful data structure, so make it available to anyone else who might want to use it. It's also a nice cleanup separating the allocation logic from the rest of the tag handling logic. The code is behind a new Kconfig option, CONFIG_SBITMAP, which is only selected by CONFIG_BLOCK for now. This should be a complete noop functionality-wise. Signed-off-by: NOmar Sandoval <osandov@fb.com> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 04 8月, 2016 1 次提交
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由 Ross Zwisler 提交于
The functionality for block device DAX was already removed with commit acc93d30 ("Revert "block: enable dax for raw block devices"") However, we still had a config option hanging around that was always disabled because it depended on CONFIG_BROKEN. This config option was introduced in commit 03cdadb0 ("block: disable block device DAX by default") This change reverts that commit, removing the dead config option. Link: http://lkml.kernel.org/r/20160729182314.6368-1-ross.zwisler@linux.intel.comSigned-off-by: NRoss Zwisler <ross.zwisler@linux.intel.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Acked-by: NDan Williams <dan.j.williams@intel.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 28 2月, 2016 1 次提交
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由 Dan Williams 提交于
The recent *sync enabling discovered that we are inserting into the block_device pagecache counter to the expectations of the dirty data tracking for dax mappings. This can lead to data corruption. We want to support DAX for block devices eventually, but it requires wider changes to properly manage the pagecache. dump_stack+0x85/0xc2 dax_writeback_mapping_range+0x60/0xe0 blkdev_writepages+0x3f/0x50 do_writepages+0x21/0x30 __filemap_fdatawrite_range+0xc6/0x100 filemap_write_and_wait+0x4a/0xa0 set_blocksize+0x70/0xd0 sb_set_blocksize+0x1d/0x50 ext4_fill_super+0x75b/0x3360 mount_bdev+0x180/0x1b0 ext4_mount+0x15/0x20 mount_fs+0x38/0x170 Mark the support broken so its disabled by default, but otherwise still available for testing. Signed-off-by: NDan Williams <dan.j.williams@intel.com> Signed-off-by: NRoss Zwisler <ross.zwisler@linux.intel.com> Reported-by: NRoss Zwisler <ross.zwisler@linux.intel.com> Suggested-by: NDave Chinner <david@fromorbit.com> Reviewed-by: NJan Kara <jack@suse.cz> Cc: Jens Axboe <axboe@fb.com> Cc: Matthew Wilcox <matthew.r.wilcox@intel.com> Cc: Al Viro <viro@ftp.linux.org.uk> Cc: Theodore Ts'o <tytso@mit.edu> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 27 9月, 2014 1 次提交
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由 Martin K. Petersen 提交于
The T10 Protection Information format is also used by some devices that do not go through the SCSI layer (virtual block devices, NVMe). Relocate the relevant functions to a block layer library that can be used without involving SCSI. Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com> Reviewed-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJens Axboe <axboe@fb.com>
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- 01 10月, 2013 1 次提交
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由 Paul Gortmaker 提交于
Recently commit bab55417 ("block: support embedded device command line partition") introduced CONFIG_CMDLINE_PARSER. However, that name is too generic and sounds like it enables/disables generic kernel boot arg processing, when it really is block specific. Before this option becomes a part of a full/final release, add the BLK_ prefix to it so that it is clear in absence of any other context that it is block specific. In addition, fix up the following less critical items: - help text was not really at all helpful. - index file for Documentation was not updated - add the new arg to Documentation/kernel-parameters.txt - clarify wording in source comments Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Cai Zhiyong <caizhiyong@huawei.com> Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 12 9月, 2013 1 次提交
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由 Cai Zhiyong 提交于
Read block device partition table from command line. The partition used for fixed block device (eMMC) embedded device. It is no MBR, save storage space. Bootloader can be easily accessed by absolute address of data on the block device. Users can easily change the partition. This code reference MTD partition, source "drivers/mtd/cmdlinepart.c" About the partition verbose reference "Documentation/block/cmdline-partition.txt" [akpm@linux-foundation.org: fix printk text] [yongjun_wei@trendmicro.com.cn: fix error return code in parse_parts()] Signed-off-by: NCai Zhiyong <caizhiyong@huawei.com> Cc: Karel Zak <kzak@redhat.com> Cc: "Wanglin (Albert)" <albert.wanglin@huawei.com> Cc: Marius Groeger <mag@sysgo.de> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Artem Bityutskiy <dedekind@infradead.org> Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 22 2月, 2013 1 次提交
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由 Mikulas Patocka 提交于
The block device doesn't use percpu rw-semaphore anymore, so don't select it for compilation. Signed-off-by: NMikulas Patocka <mpatocka@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NJens Axboe <axboe@kernel.dk>
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- 18 12月, 2012 1 次提交
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由 Oleg Nesterov 提交于
Currently only block_dev and uprobes use percpu_rw_semaphore, add the config option selected by BLOCK || UPROBES. Signed-off-by: NOleg Nesterov <oleg@redhat.com> Cc: Anton Arapov <anton@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Mikulas Patocka <mpatocka@redhat.com> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 24 10月, 2012 1 次提交
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由 Kees Cook 提交于
This config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it. CC: Jens Axboe <axboe@kernel.dk> Signed-off-by: NKees Cook <keescook@chromium.org> Signed-off-by: NJens Axboe <axboe@kernel.dk>
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- 04 1月, 2012 1 次提交
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 01 8月, 2011 1 次提交
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由 Mike Christie 提交于
This moves the FC classes bsg code to the block layer and makes it a lib so that other classes like iscsi and SAS can use it. It is helpful because working with the request queue, bios, creating scatterlists, etc are a pain that the LLD does not have to worry about with normal IOs and should not have to worry about for bsg requests. Signed-off-by: NMike Christie <michaelc@cs.wisc.edu> Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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- 21 1月, 2011 1 次提交
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由 David Rientjes 提交于
The meaning of CONFIG_EMBEDDED has long since been obsoleted; the option is used to configure any non-standard kernel with a much larger scope than only small devices. This patch renames the option to CONFIG_EXPERT in init/Kconfig and fixes references to the option throughout the kernel. A new CONFIG_EMBEDDED option is added that automatically selects CONFIG_EXPERT when enabled and can be used in the future to isolate options that should only be considered for embedded systems (RISC architectures, SLOB, etc). Calling the option "EXPERT" more accurately represents its intention: only expert users who understand the impact of the configuration changes they are making should enable it. Reviewed-by: NIngo Molnar <mingo@elte.hu> Acked-by: NDavid Woodhouse <david.woodhouse@intel.com> Signed-off-by: NDavid Rientjes <rientjes@google.com> Cc: Greg KH <gregkh@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jens Axboe <axboe@kernel.dk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Robin Holt <holt@sgi.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 16 9月, 2010 1 次提交
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由 Vivek Goyal 提交于
o Actual implementation of throttling policy in block layer. Currently it implements READ and WRITE bytes per second throttling logic. IOPS throttling comes in later patches. Signed-off-by: NVivek Goyal <vgoyal@redhat.com> Signed-off-by: NJens Axboe <jaxboe@fusionio.com>
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- 27 4月, 2010 1 次提交
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由 Vivek Goyal 提交于
This patch fixes few usability and configurability issues. o All the cgroup based controller options are configurable from "Genral Setup/Control Group Support/" menu. blkio is the only exception. Hence make this option visible in above menu and make it configurable from there to bring it inline with rest of the cgroup based controllers. o Get rid of CONFIG_DEBUG_CFQ_IOSCHED. This option currently does two things. - Enable printing of cgroup paths in blktrace - Enables CONFIG_DEBUG_BLK_CGROUP, which in turn displays additional stat files in cgroup. If we are using group scheduling, blktrace data is of not really much use if cgroup information is not present. To get this data, currently one has to also enable CONFIG_DEBUG_CFQ_IOSCHED, which in turn brings the overhead of all the additional debug stat files which is not desired. Hence, this patch moves printing of cgroup paths under CONFIG_CFQ_GROUP_IOSCHED. This allows us to get rid of CONFIG_DEBUG_CFQ_IOSCHED completely. Now all the debug stat files are controlled only by CONFIG_DEBUG_BLK_CGROUP which can be enabled through config menu. Signed-off-by: NVivek Goyal <vgoyal@redhat.com> Acked-by: NDivyesh Shah <dpshah@google.com> Reviewed-by: NGui Jianfeng <guijianfeng@cn.fujitsu.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 16 3月, 2010 1 次提交
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由 Li Zefan 提交于
Make the config visible, so we can choose from CONFIG_BLK_CGROUP=y and CONFIG_BLK_CGROUP=m when CONFIG_IOSCHED_CFQ=m. Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 13 3月, 2010 1 次提交
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由 Ben Blum 提交于
Modify the Block I/O cgroup subsystem to be able to be built as a module. As the CFQ disk scheduler optionally depends on blk-cgroup, config options in block/Kconfig, block/Kconfig.iosched, and block/blk-cgroup.h are enhanced to support the new module dependency. Signed-off-by: NBen Blum <bblum@andrew.cmu.edu> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Paul Menage <menage@google.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 04 12月, 2009 2 次提交
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由 Vivek Goyal 提交于
o Some debugging aids for CFQ. Signed-off-by: NVivek Goyal <vgoyal@redhat.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Vivek Goyal 提交于
o This is basic implementation of blkio controller cgroup interface. This is the common interface visible to user space and should be used by different IO control policies as we implement those. Signed-off-by: NVivek Goyal <vgoyal@redhat.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 05 8月, 2009 1 次提交
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由 John Stoffel 提交于
Make SCSI SG v4 driver enabled by default and remove EXPERIMENTAL dependency, since udev depends on BSG Make Block Layer SG support v4 the default, since recent udev versions depend on this to access serial numbers and other low level info properly. This should be backported to older kernels as well, since most distros have enabled this for a long time. Signed-off-by: NJohn Stoffel <john@stoffel.org> Cc: stable@kernel.org Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 19 6月, 2009 1 次提交
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Follow-up to "block: enable by default support for large devices and files on 32-bit archs". Rename CONFIG_LBD to CONFIG_LBDAF to: - allow update of existing [def]configs for "default y" change - reflect that it is used also for large files support nowadays Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 28 4月, 2009 1 次提交
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Enable by default support for large devices and files (CONFIG_LBD): - With 1TB disks being a commodity hardware it is quite easy to hit 2TB limitation while building RAIDs etc. and many distros have been using CONFIG_LBD=y by default already (at least Fedora 10 and openSUSE 11.1). - This should also prevent a subtle ext4 filesystem compatibility issue: mke2fs.ext4 defaults to creating filesystems with huge_files feature enabled and such filesystems cannot be later mounted read-write on machines with CONFIG_LBD=n (it should be quite easy to hit this issue when trying to use filesystem created using distro kernel on system running the self-build kernel, think about USB disk enclosures & co.). While at it: - Clarify config option help text w.r.t. mounting ext4 filesystems (they can be mounted with CONFIG_LBD=n but in the read-only mode). Cc: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 09 2月, 2009 1 次提交
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由 Frederic Weisbecker 提交于
Impact: cleanup Move blktrace.c to kernel/trace, also move its config entry. Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Acked-by: NArnaldo Carvalho de Melo <acme@redhat.com> Acked-by: NJens Axboe <jens.axboe@oracle.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 27 1月, 2009 1 次提交
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由 Arnaldo Carvalho de Melo 提交于
Impact: build fix Also mention in the help text that blktrace now can be used using the ftrace interface. Reported-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 07 1月, 2009 1 次提交
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由 Theodore Ts'o 提交于
Signed-off-by: N"Theodore Ts'o" <tytso@mit.edu> Cc: Jens Axboe <jens.axboe@oracle.com>
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- 29 12月, 2008 1 次提交
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由 Jens Axboe 提交于
We have two seperate config entries for large devices/files. One is CONFIG_LBD that guards just the devices, the other is CONFIG_LSF that handles large files. This doesn't make a lot of sense, you typically want both or none. So get rid of CONFIG_LSF and change CONFIG_LBD wording to indicate that it covers both. Acked-by: NJean Delvare <khali@linux-fr.org> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 26 11月, 2008 1 次提交
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由 Arnaldo Carvalho de Melo 提交于
This was a forward port of work done by Mathieu Desnoyers, I changed it to encode the 'what' parameter on the tracepoint name, so that one can register interest in specific events and not on classes of events to then check the 'what' parameter. Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 03 7月, 2008 1 次提交
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由 Martin K. Petersen 提交于
Some block devices support verifying the integrity of requests by way of checksums or other protection information that is submitted along with the I/O. This patch implements support for generating and verifying integrity metadata, as well as correctly merging, splitting and cloning bios and requests that have this extra information attached. See Documentation/block/data-integrity.txt for more information. Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 21 4月, 2008 1 次提交
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由 Nick Andrew 提交于
Modify the help descriptions of block/Kconfig for clarity, accuracy and consistency. Refactor the BLOCK description a bit. The wording "This permits ... to be removed" isn't quite right; the block layer is removed when the option is disabled, whereas most descriptions talk about what happens when the option is enabled. Reformat the list of what is affected by disabling the block layer. Add more examples of large block devices to LBD and strive for technical accuracy; block devices of size _exactly_ 2TB require CONFIG_LBD, not only "bigger than 2TB". Also try to say (perhaps not very clearly) that the config option is only needed when you want to have individual block devices of size >= 2TB, for example if you had 3 x 1TB disks in your computer you'd have a total storage size of 3TB but you wouldn't need the option unless you want to aggregate those disks into a RAID or LVM. Improve terminology and grammar on BLK_DEV_IO_TRACE. I also added the boilerplate "If unsure, say N" to most options. Precisely say "2TB and larger" for LSF. Indent the help text for BLK_DEV_BSG by 2 spaces in accordance with the standard. Signed-off-by: NNick Andrew <nick@nick-andrew.net> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 15 4月, 2008 1 次提交
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由 Jens Axboe 提交于
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 13 10月, 2007 1 次提交
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由 Linus Torvalds 提交于
IOW, it needs to depend on both CONFIG_BLOCK and CONFIG_COMPAT. Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 12 10月, 2007 1 次提交
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由 Jens Axboe 提交于
Add an extra CONFIG_BLOCK_COMPAT that we can use in the Makefile Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 28 7月, 2007 1 次提交
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由 Paul Mundt 提交于
BLK_DEV_BSG was added outside of the if BLOCK check, which allows it to be enabled when CONFIG_BLOCK=n. This leads to many screenlengths of errors, starting with a parse error on the request_queue_t definition. Obviously this wasn't intended for CONFIG_BLOCK=n usage, so just move the option back in to the block. Caught with a randconfig on sh. Signed-off-by: NPaul Mundt <lethal@linux-sh.org> Acked-by: NJens Axboe <jens.axboe@oracle.com> Acked-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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- 27 7月, 2007 1 次提交
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由 Paul Mundt 提交于
BLK_DEV_BSG was added outside of the if BLOCK check, which allows it to be enabled when CONFIG_BLOCK=n. This leads to many screenlengths of errors, starting with a parse error on the request_queue_t definition. Obviously this wasn't intended for CONFIG_BLOCK=n usage, so just move the option back in to the block. Caught with a randconfig on sh. Signed-off-by: NPaul Mundt <lethal@linux-sh.org> -- block/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 20 7月, 2007 1 次提交
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由 James Bottomley 提交于
This patch moves the bsg registration into SCSI so that bsg no longer has a dependency on the scsi_interface_register API. This can be viewed as a temporary expedient until we can get universal bsg binding sorted out properly. Also use the sdev bus_id as the generic bsg name (to avoid clashes with the queue name). Acked-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: NJens Axboe <jens.axboe@oracle.com> Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
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- 17 7月, 2007 2 次提交
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由 FUJITA Tomonori 提交于
- add the detailed explanation. - remove 'default y'. - make 'EXPERIMENTAL' keyword visible to the user in menu. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Linus Torvalds 提交于
The SCSI code can be compiled modular, but BLK_DEV_BSG currently cannot, and depends on the SCSI layer. So make sure that it depends on the SCSI layer being compiled in, not just available as a module. Noticed by Jeff Garzik and S.Çağlar Onur. Cc: Jeff Garzik <jeff@garzik.org> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: S.Çağlar Onur <caglar@pardus.org.tr> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 16 7月, 2007 2 次提交
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由 FUJITA Tomonori 提交于
This updates bsg entry in Kconfig: - bsg supports sg v4 - bsg depends on SCSI - it might be better to mark it experimental for a while Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Jens Axboe 提交于
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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