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* Merge branch 'elevator-switch' of git://brick.kernel.dk/data/git/linux-2.6-blockLinus Torvalds2005-10-28
|\ | | | | | | Manual fixup for trivial "gfp_t" changes.
| * [BLOCK] Leftover reference to ->max_back_kbJens Axboe2005-10-28
| | | | | | | | Signed-off-by: Jens Axboe <axboe@suse.de>
| * [BLOCK] elevator switch fixes/cleanupJens Axboe2005-10-28
| | | | | | | | | | | | | | | | | | - 100msec sleep is a little excessive, lots of requests can complete in that timeframe. Use 10msec instead. - Rename QUEUE_FLAG_BYPASS to QUEUE_FLAG_ELVSWITCH to indicate what is going on. Signed-off-by: Jens Axboe <axboe@suse.de>
| * [BLOCK] Reimplement elevator switchTejun Heo2005-10-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch reimplements elevator switch. This patch assumes generic dispatch queue patchset is applied. * Each request is tagged with REQ_ELVPRIV flag if it has its elevator private data set. * Requests which doesn't have REQ_ELVPRIV flag set never enter iosched. They are always directly back inserted to dispatch queue. Of course, elevator_put_req_fn is called only for requests which have its REQ_ELVPRIV set. * Request queue maintains the current number of requests which have its elevator data set (elevator_set_req_fn called) in q->rq->elvpriv. * If a request queue has QUEUE_FLAG_BYPASS set, elevator private data is not allocated for new requests. To switch to another iosched, we set QUEUE_FLAG_BYPASS and wait until elvpriv goes to zero; then, we attach the new iosched and clears QUEUE_FLAG_BYPASS. New implementation is much simpler and main code paths are less cluttered, IMHO. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <axboe@suse.de>
* | Merge branch 'generic-dispatch' of ↵Linus Torvalds2005-10-28
|\| | | | | | | git://brick.kernel.dk/data/git/linux-2.6-block
| * [BLOCK] kill generic max_back_kb handlingTejun Heo2005-10-28
| | | | | | | | | | | | | | | | This patch kills max_back_kb handling from elv_dispatch_sort() and kills max_back_kb field from struct request_queue. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <axboe@suse.de>
| * [PATCH] 05/05 update biodoc to match new generic dispatch apiTejun Heo2005-10-28
| | | | | | | | | | | | | | Updates biodoc to reflect changes in elevator API Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <axboe@suse.de>
| * [PATCH] 04/05 remove last_merge handling from ioschedsTejun Heo2005-10-28
| | | | | | | | | | | | | | Remove last_merge handling from all ioscheds. This patch removes merging capability of noop iosched. Signed-off-by: Tejun Heo <htejun@gmail.com>
| * [PATCH] 03/05 move last_merge handlin into generic elevator codeTejun Heo2005-10-28
| | | | | | | | | | | | | | | | | | | | Currently, both generic elevator code and specific ioscheds participate in the management and usage of last_merge. This and the following patches move last_merge handling into generic elevator code. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <axboe@suse.de>
| * [PATCH] 02/05: update ioscheds to use generic dispatch queueJens Axboe2005-10-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch updates all four ioscheds to use generic dispatch queue. There's one behavior change in as-iosched. * In as-iosched, when force dispatching (ELEVATOR_INSERT_BACK), batch_data_dir is reset to REQ_SYNC and changed_batch and new_batch are cleared to zero. This prevernts AS from doing incorrect update_write_batch after the forced dispatched requests are finished. * In cfq-iosched, cfqd->rq_in_driver currently counts the number of activated (removed) requests to determine whether queue-kicking is needed and cfq_max_depth has been reached. With generic dispatch queue, I think counting the number of dispatched requests would be more appropriate. * cfq_max_depth can be lowered to 1 again. Original from Tejun Heo, modified version applied. Signed-off-by: Jens Axboe <axboe@suse.de>
| * [PATCH] elevator: leftover function declarationJens Axboe2005-10-28
| | | | | | | | Signed-off-by: Jens Axboe <axboe@suse.de>
| * [PATCH] generic dispatch fixesJens Axboe2005-10-28
| | | | | | | | | | | | | | - Split elv_dispatch_insert() into two functions - Rename rq_last_sector() to rq_end_sector() Signed-off-by: Jens Axboe <axboe@suse.de>
| * [PATCH] 01/05 Implement generic dispatch queueTejun Heo2005-10-28
| | | | | | | | | | | | | | | | | | | | Implements generic dispatch queue which can replace all dispatch queues implemented by each iosched. This reduces code duplication, eases enforcing semantics over dispatch queue, and simplifies specific ioscheds. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <axboe@suse.de>
* | Merge branch 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-blockLinus Torvalds2005-10-28
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| * [PATCH] fix try_module_get race in elevator_findTejun Heo2005-10-28
| | | | | | | | | | | | | | | | | | | | | | This patch removes try_module_get race in elevator_find. try_module_get should always be called with the spinlock protecting what the module init/cleanup routines register/unregister to held. In the case of elevators, we should be holding elv_list to avoid it going away between spin_unlock_irq and try_module_get. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <axboe@suse.de>
| * Following the same idea, it occurs to me that we should only updateChen, Kenneth W2005-10-28
| | | | | | | | | | | | | | | | disk stat when "now" is different from disk->stamp. Otherwise, we are again needlessly adding zero to the stats. Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Signed-off-by: Jens Axboe <axboe@suse.de>
| * [patch] remove gendisk->stamp_idle fieldChen, Kenneth W2005-10-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | struct gendisk has these two fields: stamp, stamp_idle. Update to stamp_idle is always in sync with stamp and they are always the same. Therefore, it does not add any value in having two fields tracking same timestamp. Suggest to remove it. Also, we should only update gendisk stats with non-zero value. Advantage is that we don't have to needlessly calculate memory address, and then add zero to the content. Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Signed-off-by: Jens Axboe <axboe@suse.de>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/acme/net-2.6.15Linus Torvalds2005-10-28
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| * | [IPV4]: Fix setting broadcast for SIOCSIFNETMASKDavid Engel2005-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix setting of the broadcast address when the netmask is set via SIOCSIFNETMASK in Linux 2.6. The code wanted the old value of ifa->ifa_mask but used it after it had already been overwritten with the new value. Signed-off-by: David Engel <gigem@comcast.net> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * | [AX.25]: Use constant instead of magic numberRalf Baechle2005-10-25
| | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * | [SK_BUFF] kernel-doc: fix skbuff warningsRandy Dunlap2005-10-25
| | | | | | | | | | | | | | | | | | | | | Add kernel-doc to skbuff.h, skbuff.c to eliminate kernel-doc warnings. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * | [IPV4]: Remove dead code from ip_output.cJayachandran C2005-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | skb_prev is assigned from skb, which cannot be NULL. This patch removes the unnecessary NULL check. Signed-off-by: Jayachandran C. <c.jayachandran at gmail.com> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * | [NETLINK]: Remove dead code in af_netlink.cJayachandran C2005-10-25
| | | | | | | | | | | | | | | | | | | | | | | | Remove the variable nlk & call to nlk_sk as it does not have any side effect. Signed-off-by: Jayachandran C. <c.jayachandran at gmail.com> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * | [IPSEC]: Kill obsolete get_mss functionHerbert Xu2005-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we've switched over to storing MTUs in the xfrm_dst entries, we no longer need the dst's get_mss methods. This patch gets rid of them. It also documents the fact that our MTU calculation is not optimal for ESP. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * | [IPV4]: Kill redundant rcu_dereference on fa_infoHerbert Xu2005-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch kills a redundant rcu_dereference on fa->fa_info in fib_trie.c. As this dereference directly follows a list_for_each_entry_rcu line, we have already taken a read barrier with respect to getting an entry from the list. This read barrier guarantees that all values read out of fa are valid. In particular, the contents of structure pointed to by fa->fa_info is initialised before fa->fa_info is actually set (see fn_trie_insert); the setting of fa->fa_info itself is further separated with a write barrier from the insertion of fa into the list. Therefore by taking a read barrier after obtaining fa from the list (which is given by list_for_each_entry_rcu), we can be sure that fa->fa_info contains a valid pointer, as well as the fact that the data pointed to by fa->fa_info is itself valid. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Paul E. McKenney <paulmck@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * | [NETFILTER] ip_conntrack: Make "hashsize" conntrack parameter writableHarald Welte2005-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's fairly simple to resize the hash table, but currently you need to remove and reinsert the module. That's bad (we lose connection state). Harald has even offered to write a daemon which sets this based on load. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * | [PKTGEN]: proc interface revisionStephen Hemminger2005-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code to handle the /proc interface can be cleaned up in several places: * use seq_file for read * don't need to remember all the filenames separately * use for_online_cpu's * don't vmalloc a buffer for small command from user. Committer note: This patch clashed with John Hawkes's "[NET]: Wider use of for_each_*cpu()", so I fixed it up manually. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * | [PKTGEN]: Spelling and white spaceStephen Hemminger2005-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | Fix some cosmetic issues. Indentation, spelling errors, and some whitespace. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * | [PKTGEN]: Use kzallocStephen Hemminger2005-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These are cleanup patches for pktgen that can go in 2.6.15 Can use kzalloc in a couple of places. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * | [PKTGEN]: Sleeping function called under lockStephen Hemminger2005-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pktgen is calling kmalloc GFP_KERNEL and vmalloc with lock held. The simplest fix is to turn the lock into a semaphore, since the thread lock is only used for admin control from user context. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * | [NET]: Wider use of for_each_*cpu()John Hawkes2005-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In 'net' change the explicit use of for-loops and NR_CPUS into the general for_each_cpu() or for_each_online_cpu() constructs, as appropriate. This widens the scope of potential future optimizations of the general constructs, as well as takes advantage of the existing optimizations of first_cpu() and next_cpu(), which is advantageous when the true CPU count is much smaller than NR_CPUS. Signed-off-by: John Hawkes <hawkes@sgi.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * | [DECNET]: Remove some redundant ifdeffed codePatrick Caulfield2005-10-25
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Patrick Caulfield <patrick@tykepenguin.com> Signed-off-by: Steven Whitehouse <steve@chygwyn.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
* | | [PATCH] gfp_t: the restAl Viro2005-10-28
| | | | | | | | | | | | | | | | | | | | | zone handling, mapping->flags handling Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: reiserfs mapping_set_gfp_mask() useAl Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: remaining bits of drivers/*Al Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: drivers/netAl Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: remaining bits of arch/*Al Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: soundAl Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: drivers/infinibandAl Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: drivers/scsiAl Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: kernel/*Al Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: drivers/usbAl Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: dma-mapping (simple cases)Al Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: dma-mapping (xtensa)Al Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: dma-mapping (amd64)Al Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: dma-mapping (sh)Al Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: dma-mapping (ppc)Al Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: dma-mapping (parisc)Al Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: dma-mapping (mips)Al Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: dma-mapping (frv)Al Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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