- 03 Apr, 2009 40 commits
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Greg Kroah-Hartman authored
Name it something sane, and fix up the code to be cleaner. Cc: Russell Lang <gsview@ghostgum.com.au> Signed-off-by:Greg Kroah-Hartman <gregkh@suse.de>
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Greg Kroah-Hartman authored
They are useless so lets remove them. Cc: Russell Lang <gsview@ghostgum.com.au> Signed-off-by: -
Greg Kroah-Hartman authored
This makes them smaller, and fixes the name of the serial driver structure. Cc: Russell Lang <gsview@ghostgum.com.au> Signed-off-by: -
Greg Kroah-Hartman authored
As the driver was copied from another one, there are lots of fields that are unused due to the hardware being different. Remove a bunch of them, more will be removed later. Cc: Russell Lang <gsview@ghostgum.com.au> Signed-off-by: -
Greg Kroah-Hartman authored
This resolves all of the sparse warnings. Cc: Russell Lang <gsview@ghostgum.com.au> Signed-off-by: -
Greg Kroah-Hartman authored
Reorginize functions to get rid of forward prototypes so they are no longer needed. Cc: Russell Lang <gsview@ghostgum.com.au> Signed-off-by: -
Greg Kroah-Hartman authored
Lots of unused and unneeded #defines in this code, so lets remove them. Cc: Russell Lang <gsview@ghostgum.com.au> Signed-off-by: -
Greg Kroah-Hartman authored
This driver was copied from the io_edgeport.c driver, so we need to put the proper copyright information back on it. Also, almost all of the function comments are directly from the original io_edgeport driver, and most of them are either totally wrong now due to changes, or redundant. So delete them all so no one gets confused by anything. Cc: Russell Lang <gsview@ghostgum.com.au> Signed-off-by: -
Greg Kroah-Hartman authored
As we are wanting to be in the main kernel tree, remove the #ifdef stuff for different kernel versions. Cc: Russell Lang <gsview@ghostgum.com.au> Signed-off-by: -
Greg Kroah-Hartman authored
No need for external .h files for a simple usb-serial driver, move them into the .c file to make things easier to cleanup. Cc: Russell Lang <gsview@ghostgum.com.au> Signed-off-by: -
Greg Kroah-Hartman authored
Run scripts/Lindent on the driver Cc: Russell Lang <gsview@ghostgum.com.au> Signed-off-by: -
Greg Kroah-Hartman authored
Many thanks to Russell Lang <gsview@ghostgum.com.au> for his help in getting this working on newer kernel versions and for pointing out this driver in the first place. Cc: Russell Lang <gsview@ghostgum.com.au> Signed-off-by: -
Randy Dunlap authored
Fix staging/stlc45xx printk format warnings: drivers/staging/stlc45xx/stlc45xx.c:453: warning: format '%d' expects type 'int', but argument 2 has type 'size_t' drivers/staging/stlc45xx/stlc45xx.c:509: warning: format '%d' expects type 'int', but argument 2 has type 'size_t' drivers/staging/stlc45xx/stlc45xx.c:718: warning: format '%d' expects type 'int', but argument 2 has type 'size_t' drivers/staging/stlc45xx/stlc45xx.c:851: warning: format '%d' expects type 'int', but argument 2 has type 'size_t' drivers/staging/stlc45xx/stlc45xx.c:857: warning: format '%d' expects type 'int', but argument 2 has type 'size_t' drivers/staging/stlc45xx/stlc45xx.c:1508: warning: format '%d' expects type 'int', but argument 3 has type 'size_t' Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
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Kalle Valo authored
This patch adds a new driver called stlc45xx, which supports wi-fi chipsets stlc4550 and stlc4560 from ST-NXP Wireless. The chipset can be found, for example, from Nokia N800 and N810 products. The driver is implemented based on the firmware interface information published by ST-NXP Wireless here: http://wireless.kernel.org/en/developers/Documentation/specs#STMicroelectronicshardware Currently only SPI interface is supported. Signed-off-by:
Kalle Valo <kalle.valo@nokia.com> Signed-off-by:
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Alexander Beregalov authored
drivers/staging/pohmelfs/path_entry.c: In function 'pohmelfs_construct_path_string': drivers/staging/pohmelfs/path_entry.c:48: error: dereferencing pointer to incomplete type drivers/staging/pohmelfs/path_entry.c:49: error: dereferencing pointer to incomplete type drivers/staging/pohmelfs/path_entry.c:50: error: dereferencing pointer to incomplete type drivers/staging/pohmelfs/path_entry.c: In function 'pohmelfs_path_length': drivers/staging/pohmelfs/path_entry.c:95: error: dereferencing pointer to incomplete type drivers/staging/pohmelfs/path_entry.c:96: error: dereferencing pointer to incomplete type drivers/staging/pohmelfs/path_entry.c:97: error: dereferencing pointer to incomplete type Signed-off-by:
Alexander Beregalov <a.beregalov@gmail.com> Acked-by:
Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by:
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Randy Dunlap authored
pohmelfs wants to use CONNECTOR, so it selects CONNECTOR, but when CONFIG_NET is not enabled, connector.c will not build, since select does not follow the dependency chain. Selecting NET is not a good idea, since that would build lots of code that someone seemingly didn't want to build/store and kconfig shouldn't do that behind someone's back. pohmelfs should depend on NET since it uses network interfaces. pohmelfs also uses CRYTPO and selects 2 cipher symbols, but it should also select the top-level CRYPTO symbol since kconfig dependency chains are not followed. (found by inspection) This allows the POHMELFS_CRYPTO option to depend only on POHMELFS and makes the kconfig menu align properly. Also fix minor typos & line lengths in kconfig help text. Drop CONFIG_* in kconfig symbols in Kconfig file. connector.c:(.text+0x46003): undefined reference to `kfree_skb' connector.c:(.text+0x460a6): undefined reference to `kfree_skb' connector.c:(.text+0x4612b): undefined reference to `kfree_skb' (.text+0x4624f): undefined reference to `netlink_has_listeners' (.text+0x4629b): undefined reference to `__alloc_skb' (.text+0x462ea): undefined reference to `kfree_skb' (.text+0x46308): undefined reference to `skb_put' (.text+0x46385): undefined reference to `netlink_broadcast' (.text+0x7b574): undefined reference to `sock_release' (.text+0x7b8dd): undefined reference to `sock_create' (.text+0x7b984): undefined reference to `kernel_connect' (.text+0x7ba4c): undefined reference to `sock_release' net.c:(.text+0x7bda4): undefined reference to `kernel_recvmsg' (.text+0x7ef42): undefined reference to `kernel_sendmsg' (.text+0x7f057): undefined reference to `kernel_sendpage' (.text+0x7f1e8): undefined reference to `kernel_sendmsg' connector.c:(.devinit.text+0x5b): undefined reference to `init_net' connector.c:(.devinit.text+0x60): undefined reference to `netlink_kernel_create' connector.c:(.devinit.text+0xc9): undefined reference to `netlink_kernel_release' connector.c:(.devexit.text+0x2c): undefined reference to `netlink_kernel_release' Signed-off-by:
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Alexander Beregalov authored
Signed-off-by:
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Alexander Beregalov authored
drivers/staging/pohmelfs/inode.c:917: warning: format '%u' expects type 'unsigned int', but argument 4 has type 'size_t' drivers/staging/pohmelfs/inode.c:1036: warning: format '%u' expects type 'unsigned int', but argument 7 has type 'size_t' drivers/staging/pohmelfs/trans.c:164: warning: format '%u' expects type 'unsigned int', but argument 5 has type '__kernel_size_t' drivers/staging/pohmelfs/trans.c:170: warning: format '%u' expects type 'unsigned int', but argument 7 has type '__kernel_size_t' drivers/staging/pohmelfs/trans.c:517: warning: format '%u' expects type 'unsigned int', but argument 6 has type '__kernel_size_t' drivers/staging/pohmelfs/trans.c:600: warning: format '%u' expects type 'unsigned int', but argument 6 has type '__kernel_size_t' drivers/staging/pohmelfs/trans.c:610: warning: format '%u' expects type 'unsigned int', but argument 7 has type '__kernel_size_t' Signed-off-by:
Frank Seidel <frank@f-seidel.de> Acked-by:
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Alexander Beregalov authored
on Sparc64: drivers/staging/pohmelfs/net.c:33: error: implicit declaration of function 'vmalloc' drivers/staging/pohmelfs/net.c:42: error: implicit declaration of function 'vfree' Signed-off-by:
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Alexander Beregalov authored
drivers/staging/pohmelfs/inode.c:982: error: implicit declaration of function 'DQUOT_TRANSFER' Signed-off-by:
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Evgeniy Polyakov authored
Signed-off-by:
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Evgeniy Polyakov authored
This patch adds Kconfig and Makefile entries and exports to VFS functions to be used by POHMELFS. Signed-off-by:
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Evgeniy Polyakov authored
This patch implements transaction processing helpers used to allocate/free/insert/remove and other operations with the transctions. Each transction is an object, which may embed multiple commands completed atomically. When server fails the whole transaction will be replied against it (or different server) later. This approach allows to maintain high data integrity and do not desynchronize filesystem state in case of network or server failures. Signed-off-by:
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Evgeniy Polyakov authored
This is a main network processing patch. It includes both low-level socket machinery, zero-copy sending helpers, receiving and parsing callbacks and mainly logical commands handlers. POHMELFS uses async network approach, when every command can be separated from its answer and received after some time after the request during which another lots of commands can be injected into the network and replies to them received. With read operation balancing between multiple hosts it is possible that operations will arrive out of order and this is handled by the transaction mechanism described partially here. Having a transaction to guard the set of logically compound operations allows to send data without thinking about its status and using zero-copy sending mechanism, since transaction will receive explicit acks from the servers when they are completed. This patch also contains header with network srtuctures, commands and short comments on how they are used. Signed-off-by:
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Evgeniy Polyakov authored
POHMELFS utilizes writeback cache, which is built on top of MO(E)SI-like coherency protocol. This patch includes its implementation and cache object processing helpers (like allocation and completion callbacks). POHMELFS uses scalable cached read/write locking. No additional requests are performed if lock is granted to the filesystem. The same protocol is used by the server to on-demand flushing of the client's cache (for example when server wants to update local data). Signed-off-by:
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Evgeniy Polyakov authored
This is the main patch which implements inode operations (like reading and writing) and superblock processing (filesystem registration, initial autoconfiguration with the server like permissions, size of the exported dir, amount of the objects created and so on). POHMELFS relies on system's writeback cache mechanism shown here, as long as cache coherency protocol described later. Signed-off-by:
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Evgeniy Polyakov authored
This patch implementes all supported directory operations like directory reading, object lookup, creation, removal and so on. Currently object removal is not optimized at all. Signed-off-by:
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Evgeniy Polyakov authored
POHMELFS is able to encrypt the whole network channel or attach the strong checksum to own packets to catch faulty media. This patch implements crypto initialization, its autoconfiguration and sync with the server. Signed-off-by:
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Evgeniy Polyakov authored
This patch includes POHMELFS configuration interface based on the netlink kernel connector. This interface allows to create configuration groups in the kerenel indexed by mount ID option. Each configuration group can include multiple servers to work with and various operation parameters. Signed-off-by:
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Evgeniy Polyakov authored
This patch includes POHMELFS design and implementation description. Separate file includes mount options, default parameters and usage examples. Signed-off-by:
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Evgeniy Polyakov authored
On Mon, Jan 19, 2009 at 10:12:24AM -0800, Randy Dunlap (randy.dunlap@oracle.com) wrote: > > DST build fails when CONFIG_BLOCK=n: DST should depend on block and block device, in the original patch its kconfig entry was in the BLK_DEV menu, so this dependency was satisfied automatically. Should attached patch be pushed into drivers/staging? Reported-by:
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Evgeniy Polyakov authored
Kconfig help text update Signed-off-by:
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Evgeniy Polyakov authored
Do not allow empty barriers or generic_make_request() -> scsi_setup_fs_cmnd() will explode Signed-off-by:
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Evgeniy Polyakov authored
Added thread pool exit condition into the thread_pool_del_worker(). If called in parallel another thread can steal Signed-off-by:
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Evgeniy Polyakov authored
Use bio prepend feature as suggested by Jens Axboe. Signed-off-by:
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Evgeniy Polyakov authored
On Wed, Jan 14, 2009 at 02:05:33AM +0300, Evgeniy Polyakov (zbr@ioremap.net) wrote: > --- /dev/null > +++ b/drivers/staging/dst/Kconfig > @@ -0,0 +1,71 @@ > +config DST > + tristate "Distributed storage" > + depends on NET && CRYPTO && SYSFS > + select CONNECTOR > + select LIBCRC32C Above is not needed. Signed-off-by:
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Evgeniy Polyakov authored
Signed-off-by:
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Greg Kroah-Hartman authored
bus_id is going away, use the dev_set_name() function instead. Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: -
Evgeniy Polyakov authored
DST may fully encrypt the data channel in case of untrusted channel and implement strong checksum of the transferred data. It is possible to configure algorithms and crypto keys, they should match on both sides of the network channel. Crypto processing does not introduce noticeble performance overhead, since DST uses configurable pool of threads to perform crypto processing. This patch introduces crypto processing helpers and crypto engine initialization: glueing with the crypto layer, allocation and initialization of the crypto processing thread pool, allocation of the cached pages, which are used to temporary encrypt data into, since it is forbidden to encrypt data in-place, since pages are used by the higher layers. Signed-off-by:
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Evgeniy Polyakov authored
DST uses transaction model, when each store has to be explicitly acked from the remote node to be considered as successfully written. There may be lots of in-flight transactions. When remote host does not ack the transaction it will be resent predefined number of times with specified timeouts between them. All those parameters are configurable. Transactions are marked as failed after all resends completed unsuccessfully, having long enough resend timeout and/or large number of resends allows not to return error to the higher (FS usually) layer in case of short network problems or remote node outages. In case of network RAID setup this means that storage will not degrade until transactions are marked as failed, and thus will not force checksum recalculation and data rebuild. In case of connection failure DST will try to reconnect to the remote node automatically. DST sends ping commands at idle time to detect if remote node is alive. Because of transactional model it is possible to use zero-copy sending without worry of data corruption (which in turn could be detected by the strong checksums though). Transactions are handled in this patch: allocation/freeing/completion, scanning for stall and to-be-resent transactions and overall management of the storing tree. Signed-off-by:
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