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* [NET]: Rework dev_base via list_head (v3)Pavel Emelianov2007-05-031-3/+5
| | | | | | | | | | | | Cleanup of dev_base list use, with the aim to simplify making device list per-namespace. In almost every occasion, use of dev_base variable and dev->next pointer could be easily replaced by for_each_netdev loop. A few most complicated places were converted to using first_netdev()/next_netdev(). Signed-off-by: Pavel Emelianov <xemul@openvz.org> Acked-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SK_BUFF]: Introduce skb_reset_network_header(skb)Arnaldo Carvalho de Melo2007-04-251-1/+1
| | | | | | | | | | | | For the common, open coded 'skb->nh.raw = skb->data' operation, so that we can later turn skb->nh.raw into a offset, reducing the size of struct sk_buff in 64bit land while possibly keeping it as a pointer on 32bit. This one touches just the most simple case, next will handle the slightly more "complex" cases. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SK_BUFF]: Introduce skb_mac_header()Arnaldo Carvalho de Melo2007-04-251-1/+1
| | | | | | | | | | | | For the places where we need a pointer to the mac header, it is still legal to touch skb->mac.raw directly if just adding to, subtracting from or setting it to another layer header. This one also converts some more cases to skb_reset_mac_header() that my regex missed as it had no spaces before nor after '=', ugh. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SK_BUFF]: Introduce skb_reset_mac_header(skb)Arnaldo Carvalho de Melo2007-04-251-1/+2
| | | | | | | | | | | | For the common, open coded 'skb->mac.raw = skb->data' operation, so that we can later turn skb->mac.raw into a offset, reducing the size of struct sk_buff in 64bit land while possibly keeping it as a pointer on 32bit. This one touches just the most simple case, next will handle the slightly more "complex" cases. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [AOE]: Introduce aoe_hdr()Arnaldo Carvalho de Melo2007-04-253-8/+17
| | | | | | | For consistency with other skb->mac.raw users. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [AOE]: Add get_unaligned() calls where needed.David S. Miller2007-03-022-8/+9
| | | | | | Based upon a report by Andrew Walrond. Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] mark struct file_operations const 3Arjan van de Ven2007-02-121-1/+1
| | | | | | | | | | | Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] fix aoe without scatter-gather [Bug 7662]Ed L. Cashin2006-12-221-7/+6
| | | | | | | | | | | | | | | | | | | | Fix a bug that only appears when AoE goes over a network card that does not support scatter-gather. The headers in the linear part of the skb appeared to be larger than they really were, resulting in data that was offset by 24 bytes. This patch eliminates the offset data on cards that don't support scatter-gather or have had scatter-gather turned off. There remains an unrelated issue that I'll address in a separate email. Fixes bugzilla #7662 Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Cc: <stable@kernel.org> Cc: Greg KH <greg@kroah.com> Cc: <boddingt@optusnet.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] slab: remove kmem_cache_tChristoph Lameter2006-12-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace all uses of kmem_cache_t with struct kmem_cache. The patch was generated using the following script: #!/bin/sh # # Replace one string by another in all the kernel sources. # set -e for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do quilt add $file sed -e "1,\$s/$1/$2/g" $file >/tmp/$$ mv /tmp/$$ $file quilt refresh done The script was run like this sh replace kmem_cache_t "struct kmem_cache" Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* WorkStruct: make allyesconfigDavid Howells2006-11-223-4/+4
| | | | | | Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
* aoe: Add forgotten NULL at end of attribute list in aoeblk.cDennis Stosberg2006-11-161-0/+1
| | | | | | | | | This caused the system to stall when the aoe module was loaded. The error was introduced in commit 4ca5224f3ea4779054d96e885ca9b3980801ce13 Signed-off-by: Dennis Stosberg <dennis@stosberg.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* aoe: fix sysfs_create_file warningsGreg Kroah-Hartman2006-10-181-9/+14
| | | | | | | | | | | | Moved the attributes into a group, making the compiler be quiet about ignoring the return value of the file create calls. This also also fixed a bug when removing the files, which were not symlinks. Cc: "Ed L. Cashin" <ecashin@coraid.com> Cc: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* aoe: revert printk macrosEd L. Cashin2006-10-187-37/+39
| | | | | | | | | | | This patch addresses the concern that the aoe driver should not introduce unecessary conventions that must be learned by the reader. It reverts patch 6. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* aoe: update driver versionEd L. Cashin2006-10-181-1/+1
| | | | | | | | | Update aoe driver version number to 32. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* aoe: remove sysfs commentEd L. Cashin2006-10-181-1/+0
| | | | | | | | | Remove unecessary comment. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* aoe: use bio->bi_idxEd L. Cashin2006-10-182-1/+3
| | | | | | | | | Instead of starting with bio->bi_io_vec, use the offset in bio->bi_idx. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* aoe: module parameter for device timeoutEd L. Cashin2006-10-181-2/+5
| | | | | | | | | | | | | The aoe_deadsecs module parameter sets the number of seconds that elapse before a nonresponsive AoE device is marked as dead. This is runtime settable in sysfs or settable with a module load or kernel boot parameter. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* aoe: zero copy write 2 of 2Ed L. Cashin2006-10-183-20/+64
| | | | | | | | | | Avoid memory copy on writes. (This patch follows patch 4.) Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* aoe: improve retransmission heuristicsEd L. Cashin2006-10-182-6/+17
| | | | | | | | | Add a dynamic minimum timer for better retransmission behavior. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* aoe: jumbo frame support 2 of 2Ed L. Cashin2006-10-181-2/+6
| | | | | | | | | | Add support for jumbo ethernet frames. (This patch follows patch 5.) Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* aoe: clean up printks via macrosEd L. Cashin2006-10-187-58/+50
| | | | | | | | | | Use simple macros to clean up the printks. (This patch is reverted by the 14th patch to follow.) Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* aoe: jumbo frame support 1 of 2Ed L. Cashin2006-10-183-17/+72
| | | | | | | | | | Add support for jumbo ethernet frames. (This patch depends on patch 7 to follow.) Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* aoe: zero copy write 1 of 2Ed L. Cashin2006-10-183-74/+69
| | | | | | | | | | | | | | | | | | | | | | | Avoid memory copy on writes. (This patch depends on fixes in patch 9 to follow.) Although skb->len should not be set when working with linear skbuffs, the skb->tail pointer maintained by skb_put/skb_trim is not relevant to what happens when the skb_fill_page_desc function is called. This issue was raised without comment in linux-kernel and netdev earlier this month: http://thread.gmane.org/gmane.linux.kernel/446474/ http://thread.gmane.org/gmane.linux.network/45444/ So until there is something analogous to skb_put that works for zero-copy write skbuffs, we will do what the other callers of skb_fill_page_desc are doing. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* aoe: remove unused NARGS enumEd L. Cashin2006-10-181-1/+0
| | | | | | | | | The NARGS enum is left over from older code versions. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* aoe: update copyright dateEd L. Cashin2006-10-187-7/+7
| | | | | | | | | Update the copyright year to 2006. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* aoe: eliminate isbusy messageEd L. Cashin2006-10-181-4/+1
| | | | | | | | | This message doesn't help users because the circumstance isn't problematic. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] aoe: cleanup i_rdev usageEric Sesterhenn2006-07-101-1/+1
| | | | | | | Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [NET]: Clean up skb_linearizeHerbert Xu2006-06-171-2/+1
| | | | | | | | | | | | | | | | | | | | | | | The linearisation operation doesn't need to be super-optimised. So we can replace __skb_linearize with __pskb_pull_tail which does the same thing but is more general. Also, most users of skb_linearize end up testing whether the skb is linear or not so it helps to make skb_linearize do just that. Some callers of skb_linearize also use it to copy cloned data, so it's useful to have a new function skb_linearize_cow to copy the data if it's either non-linear or cloned. Last but not least, I've removed the gfp argument since nobody uses it anymore. If it's ever needed we can easily add it back. Misc bugs fixed by this patch: * via-velocity error handling (also, no SG => no frags) Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] mempool: use mempool_create_slab_pool()Matthew Dobson2006-03-261-3/+1
| | | | | | | | | | Modify well over a dozen mempool users to call mempool_create_slab_pool() rather than calling mempool_create() with extra arguments, saving about 30 lines of code and increasing readability. Signed-off-by: Matthew Dobson <colpatch@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] aoe [3/3]: update version to 22Ed L. Cashin2006-03-231-1/+1
| | | | | | Increase version number to 22. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com>
* [PATCH] aoe [2/3]: don't request ATA device ID on ATA errorEd L. Cashin2006-03-231-1/+2
| | | | | | | On an ATA error response, take the device down instead of sending another ATA device identify command. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com>
* [PATCH] aoe [1/3]: support multiple AoE listenersEd L. Cashin2006-03-231-17/+5
| | | | | | | | Always clone incoming skbs, allowing other AoE listeners to exist in the kernel. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] aoe: do not stop retransmit timer when device goes downEd L. Cashin2006-03-231-2/+2
| | | | | | | | This patch is a bugfix that follows and depends on the eight aoe driver patches sent January 19th. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] aoe [8/8]: update driver version numberEd L. Cashin2006-03-231-1/+1
| | | | | | | Update aoe driver version number. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] aoe [7/8]: update driver compatibility stringEd L. Cashin2006-03-231-1/+1
| | | | | | | | The aoe driver is not compatible with 2.6 kernels older than 2.6.2. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] aoe [6/8]: update device information on last closeEd L. Cashin2006-03-231-1/+1
| | | | | | | | | Instead of making the user wait or do it manually, refresh device information on its last close by issuing a config query to the device. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] aoe [5/8]: allow network interface migration on packet retransmitEd L. Cashin2006-03-231-0/+2
| | | | | | Retransmit to the current network interface for an AoE device. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com>
* [PATCH] aoe [4/8]: use less confusing driver nameEd L. Cashin2006-03-231-1/+1
| | | | | | | | Users were confused by the driver being called "aoe-2.6-$version". This form looks less like a Linux kernel version number. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] aoe [3/8]: increase allowed outstanding packetsEd L. Cashin2006-03-231-1/+1
| | | | | | | | Increase the number of AoE packets per device that can be outstanding at one time, increasing performance. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] aoe [2/8]: support dynamic resizing of AoE devicesEd L. Cashin2006-03-235-97/+220
| | | | | | | | | Allow the driver to recognize AoE devices that have changed size. Devices not in use are updated automatically, and devices that are in use are updated at user request. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] aoe [1/8]: zero packet data after skb allocationEd L. Cashin2006-03-231-0/+1
| | | | | | | Zero the data in new socket buffers to prevent leaking information. Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] Add block_device_operations.getgeo block device methodChristoph Hellwig2006-01-081-19/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | HDIO_GETGEO is implemented in most block drivers, and all of them have to duplicate the code to copy the structure to userspace, as well as getting the start sector. This patch moves that to common code [1] and adds a ->getgeo method to fill out the raw kernel hd_geometry structure. For many drivers this means ->ioctl can go away now. [1] the s390 block drivers are odd in this respect. xpram sets ->start to 4 always which seems more than odd, and the dasd driver shifts the start offset around, probably because of it's non-standard sector size. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Jens Axboe <axboe@suse.de> Cc: <mike.miller@hp.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Paolo Giarrusso <blaisorblade@yahoo.it> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Markus Lidel <Markus.Lidel@shadowconnect.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [BLOCK] aoe: update for combined io statisticsJens Axboe2005-11-011-9/+4
| | | | Signed-off-by: Jens Axboe <axboe@suse.de>
* [PATCH] Driver Core: fix up all callers of class_device_create()Greg Kroah-Hartman2005-10-281-1/+1
| | | | | | | | The previous patch adding the ability to nest struct class_device changed the paramaters to the call class_device_create(). This patch fixes up all in-kernel users of the function. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] aoe: update to version 14Ed L. Cashin2005-10-281-1/+1
| | | | | | | Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Update driver version number to 14.
* [PATCH] aoe: use get_unaligned for accesses in ATA id bufferEd L. Cashin2005-10-281-7/+8
| | | | | | | | | Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Use get_unaligned for possibly-unaligned multi-byte accesses to the ATA device identify response buffer.
* [PATCH] aoe [2/2]: update driver version number to twelveEd L Cashin2005-09-091-1/+1
| | | | | | | Update driver version number to twelve. Signed-off-by: Ed L. Cashin <ecashin@coraid.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] aoe [1/2]: support 16 AoE slot addresses per AoE shelfEd L Cashin2005-09-091-5/+5
| | | | | | | | Change the number of supported AoE slot addresses per AoE shelf address to 16. Signed-off-by: Ed L. Cashin <ecashin@coraid.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] drivers: convert kcalloc to kzallocPekka Enberg2005-09-071-1/+1
| | | | | | | | This patch converts kcalloc(1, ...) calls to use the new kzalloc() function. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [NET]: Kill skb->real_devDavid S. Miller2005-08-291-1/+1
| | | | | | | | | | | Bonding just wants the device before the skb_bond() decapsulation occurs, so simply pass that original device into packet_type->func() as an argument. It remains to be seen whether we can use this same exact thing to get rid of skb->input_dev as well. Signed-off-by: David S. Miller <davem@davemloft.net>
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