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* Doc/kernel-parameters.txt: delete false version information and historyStefan Richter2006-03-31
| | | | | | | Doc/kernel-parameters.txt: delete false version information and history Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* Fix comments: s/granuality/granularity/Kalin KOZHUHAROV2006-03-31
| | | | | | | | | | | | | | | | | I was grepping through the code and some `grep ganularity -R .` didn't catch what I thought. Then looking closer I saw the term "granuality" used in only four places (in comments) and granularity in many more places describing the same idea. Some other facts: dictionary.com does not know such a word define:granuality on google is not found (and pages for granuality are mostly related to patches to the kernel) it has not been discussed as a term on LKML, AFAICS (=Can Search) To be consistent, I think granularity should be used everywhere. Signed-off-by: Kalin KOZHUHAROV <kalin@thinrope.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* kexec: grammar fix for crash_save_this_cpu()Horms2006-03-31
| | | | | | | kexec: grammar fix for crash_save_this_cpu() Signed-Off-By: Horms <horms@verge.net.au> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* Documentation: Make fujitsu/frv/kernel-ABI.txt 80 columns wideHorms2006-03-31
| | | | | | | | | | Documentation: Make kernel-ABI.txt 80 columns wide Note that this only has line-wrapping and white-space changes. No text was changed at all. Signed-Off-By: Horms <horms@verge.net.au> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* Documentation: Reorder documentation of nomca and nomceHorms2006-03-31
| | | | | | | | My patch to add brief documentation of the nomca boot parameter added it out of alphabetical order. Signed-Off-By: Horms <horms@verge.net.au> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* fix typo "Suposse" -> "Suppose"Uwe Zeisberger2006-03-31
| | | | | Signed-off-by: Uwe Zeisberger <zeisberg@informatik.uni-freiburg.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in drivers/s390/char/tape_block.cEric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in drivers/s390/block/dasd_erp.cEric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in mm/vmalloc.cEric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in mm/swap_state.cEric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in mm/mmap.cEric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in kernel/printk.cEric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in ipc/util.cEric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in fs/sysfs/Eric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in fs/smbfs/Eric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in fs/jffs2/Eric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in fs/hfsplus/Eric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in fs/exec.cEric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner and can better optimized away Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in fs/direct-io.cEric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner and can better optimized away Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in md/raid1.cEric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner and can better optimized away Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() Conversion in md/dm-target.cEric Sesterhenn2006-03-31
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner and can better optimized away Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* typos: s/ducument/document/Adrian Bunk2006-03-31
| | | | | | s/ducument/document/ Signed-off-by: Adrian Bunk <bunk@stusta.de>
* fix the email address of Wendy XiongAdrian Bunk2006-03-31
| | | | | | | Replace a bouncing version of the email address of Wendy Xiong with a working one. Signed-off-by: Adrian Bunk <bunk@stusta.de>
* fix a typo in the AIC7XXX_DEBUG_MASK help textAdrian Bunk2006-03-31
| | | | | | This patch fixes a typo in the AIC7XXX_DEBUG_MASK help text. Signed-off-by: Adrian Bunk <bunk@stusta.de>
* help text: SOFTWARE_SUSPEND doesn't need ACPIAdrian Bunk2006-03-31
| | | | | | | The note that SOFTWARE_SUSPEND doesn't need APM is helpful, but nowadays the information that it doesn't need ACPI, too, is even more helpful. Signed-off-by: Adrian Bunk <bunk@stusta.de>
* MTD: remove obsolete Kconfig optionsAnders Larsen2006-03-31
| | | | | | | | | | | | Remove the obsolete Kconfig options MTD_CFI_AMDSTD_RETRY and MTD_CFI_AMDSTD_RETRY_MAX The code that depended on these was removed in early 2004, but Kconfig was not updated accordingly. Signed-off-by: Anders Larsen <al@alarsen.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2006-03-31
|\ | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [NET]: Allow skb headroom to be overridden [TCP]: Kill unused extern decl for tcp_v4_hash_connecting() [NET]: add SO_RCVBUF comment [NET]: Deinline some larger functions from netdevice.h [DCCP]: Use NULL for pointers, comfort sparse. [DECNET]: Fix refcount
| * [NET]: Allow skb headroom to be overriddenAnton Blanchard2006-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously we added NET_IP_ALIGN so an architecture can override the padding done to align headers. The next step is to allow the skb headroom to be overridden. We currently always reserve 16 bytes to grow into, meaning all DMAs start 16 bytes into a cacheline. On ppc64 we really want DMA writes to start on a cacheline boundary, so we increase that headroom to one cacheline. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [TCP]: Kill unused extern decl for tcp_v4_hash_connecting()David S. Miller2006-03-31
| | | | | | | | | | | | Noticed by Alan Menegotto. Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NET]: add SO_RCVBUF commentAndrew Morton2006-03-31
| | | | | | | | | | | | | | | | Put a comment in there explaining why we double the setsockopt() caller's SO_RCVBUF. People keep wondering. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [NET]: Deinline some larger functions from netdevice.hDenis Vlasenko2006-03-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On a allyesconfig'ured kernel: Size Uses Wasted Name and definition ===== ==== ====== ================================================ 95 162 12075 netif_wake_queue include/linux/netdevice.h 129 86 9265 dev_kfree_skb_any include/linux/netdevice.h 127 56 5885 netif_device_attach include/linux/netdevice.h 73 86 4505 dev_kfree_skb_irq include/linux/netdevice.h 46 60 1534 netif_device_detach include/linux/netdevice.h 119 16 1485 __netif_rx_schedule include/linux/netdevice.h 143 5 492 netif_rx_schedule include/linux/netdevice.h 81 7 366 netif_schedule include/linux/netdevice.h netif_wake_queue is big because __netif_schedule is a big inline: static inline void __netif_schedule(struct net_device *dev) { if (!test_and_set_bit(__LINK_STATE_SCHED, &dev->state)) { unsigned long flags; struct softnet_data *sd; local_irq_save(flags); sd = &__get_cpu_var(softnet_data); dev->next_sched = sd->output_queue; sd->output_queue = dev; raise_softirq_irqoff(NET_TX_SOFTIRQ); local_irq_restore(flags); } } static inline void netif_wake_queue(struct net_device *dev) { #ifdef CONFIG_NETPOLL_TRAP if (netpoll_trap()) return; #endif if (test_and_clear_bit(__LINK_STATE_XOFF, &dev->state)) __netif_schedule(dev); } By de-inlining __netif_schedule we are saving a lot of text at each callsite of netif_wake_queue and netif_schedule. __netif_rx_schedule is also big, and it makes more sense to keep both of them out of line. Patch also deinlines dev_kfree_skb_any. We can deinline dev_kfree_skb_irq instead... oh well. netif_device_attach/detach are not hot paths, we can deinline them too. Signed-off-by: Denis Vlasenko <vda@ilport.com.ua> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [DCCP]: Use NULL for pointers, comfort sparse.Randy Dunlap2006-03-29
| | | | | | | | | | | | | | | | | | | | | | | | | | From: Randy Dunlap <rdunlap@xenotime.net> Use NULL instead of 0 for pointers. Fix these sparse warnings: net/dccp/feat.c:207:20: warning: Using plain integer as NULL pointer net/dccp/feat.c:325:21: warning: Using plain integer as NULL pointer net/dccp/feat.c:526:20: warning: Using plain integer as NULL pointer Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * [DECNET]: Fix refcountPatrick Caulfield2006-03-29
| | | | | | | | | | | | | | | | | | | | | | | | From: Patrick Caulfield <patrick@tykepenguin.com> This patch fixes a bug in the reference counting for the default DECnet device. If the device is changed, then the new device had its refcount decremented rather than the old one! Signed-off-by: David S. Miller <davem@davemloft.net>
* | [PATCH] avoid unaligned access when accessing poll stackJes Sorensen2006-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 70674f95c0a2ea694d5c39f4e514f538a09be36f: [PATCH] Optimize select/poll by putting small data sets on the stack resulted in the poll stack being 4-byte aligned on 64-bit architectures, causing misaligned accesses to elements in the array. This patch fixes it by declaring the stack in terms of 'long' instead of 'char'. Force alignment of poll and select stacks to long to avoid unaligned access on 64 bit architectures. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge branch 'upstream-linus' of ↵Linus Torvalds2006-03-31
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: [PATCH] libata: fix ata_xfer_tbl termination [PATCH] libata: make ata_qc_issue complete failed qcs [PATCH] libata: fix ata_qc_issue failure path [PATCH] ata_piix: fix ich6/m_map_db [libata] ahci: add ATI SB600 PCI IDs
| * | [PATCH] libata: fix ata_xfer_tbl terminationTejun Heo2006-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | ata_xfer_tbl is terminated by entry with -1 as ->shift. However, ->shift was unsigned int making the termination condition bogus. This patch converts ->shift and ->bits to int. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * | [PATCH] libata: make ata_qc_issue complete failed qcsTejun Heo2006-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no reason for the issuer to diddle with a failed qc as the issuer has complete control over when a qc gets freed (usually in ->complete_fn). Make ata_qc_issue() responsible for completing qcs which failed to issue. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * | [PATCH] libata: fix ata_qc_issue failure pathTejun Heo2006-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On sg_err failure path, ata_qc_issue() doesn't mark the qc active before returning. This triggers WARN_ON() in __ata_qc_complete() when the qc gets completed. This patch moves ap->active_tag and QCFLAG_ACTIVE setting to the top of the function. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * | [PATCH] ata_piix: fix ich6/m_map_dbTejun Heo2006-03-31
| | | | | | | | | | | | | | | | | | | | | | | | MAP tables of ich6 and ich6m are wrong. Depending on port usage, ata_piix may fail to initialize attached devices. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * | Merge branch 'master'Jeff Garzik2006-03-31
| |\ \
| * | | [libata] ahci: add ATI SB600 PCI IDsJeff Garzik2006-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | From: Anatoli Antonovitch <antonovi@ati.com> Signed-off-by: Felix Kuehling <fkuehlin@ati.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | | [PATCH] Document Linux's memory barriers [try #7]David Howells2006-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The attached patch documents the Linux kernel's memory barriers. I've updated it from the comments I've been given. The per-arch notes sections are gone because it's clear that there are so many exceptions, that it's not worth having them. I've added a list of references to other documents. I've tried to get rid of the concept of memory accesses appearing on the bus; what matters is apparent behaviour with respect to other observers in the system. Interrupts barrier effects are now considered to be non-existent. They may be there, but you may not rely on them. I've added a couple of definition sections at the top of the document: one to specify the minimum execution model that may be assumed, the other to specify what this document refers to by the term "memory". I've made greater mention of the use of mmiowb(). I've adjusted the way in which caches are described, and described the fun that can be had with cache coherence maintenance being unordered and data dependency not being necessarily implicit. I've described (smp_)read_barrier_depends(). I've rearranged the order of the sections, so that memory barriers are discussed in abstract first, and then described the memory barrier facilities available on Linux, before going on to more real-world discussions and examples. I've added information about the lack of memory barriering effects with atomic ops and bitops. I've added information about control dependencies. I've added more diagrams to illustrate caching interactions between CPUs. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | [PATCH] wrong error path in dup_fd() leading to oopses in RCUKirill Korotaev2006-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Wrong error path in dup_fd() - it should return NULL on error, not an address of already freed memory :/ Triggered by OpenVZ stress test suite. What is interesting is that it was causing different oopses in RCU like below: Call Trace: [<c013492c>] rcu_do_batch+0x2c/0x80 [<c0134bdd>] rcu_process_callbacks+0x3d/0x70 [<c0126cf3>] tasklet_action+0x73/0xe0 [<c01269aa>] __do_softirq+0x10a/0x130 [<c01058ff>] do_softirq+0x4f/0x60 ======================= [<c0113817>] smp_apic_timer_interrupt+0x77/0x110 [<c0103b54>] apic_timer_interrupt+0x1c/0x24 Code: Bad EIP value. <0>Kernel panic - not syncing: Fatal exception in interrupt Signed-Off-By: Pavel Emelianov <xemul@sw.ru> Signed-Off-By: Dmitry Mishin <dim@openvz.org> Signed-Off-By: Kirill Korotaev <dev@openvz.org> Signed-Off-By: Linus Torvalds <torvalds@osdl.org>
* | | | [PATCH] mutex: some cleanupsNicolas Pitre2006-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Turn some macros into inline functions and add proper type checking as well as being more readable. Also a minor comment adjustment. Signed-off-by: Nicolas Pitre <nico@cam.org> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | [PATCH] Decrease number of pointer derefs in jsm_tty.cJesper Juhl2006-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Decrease the number of pointer derefs in drivers/serial/jsm/jsm_tty.c Benefits of the patch: - Fewer pointer dereferences should make the code slightly faster. - Size of generated code is smaller - Improved readability Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Acked-by: "V. ANANDA KRISHNAN" <mansarov@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | [PATCH] fs/namei.c: make lookup_hash() staticAdrian Bunk2006-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As announced, lookup_hash() can now become static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | [PATCH] unexport get_wchanAdrian Bunk2006-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The only user of get_wchan is the proc fs - and proc can't be built modular. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | [PATCH] md: Raid-6 did not create sysfs entries for stripe cacheNeilBrown2006-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Brad Campbell <brad@wasp.net.au> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | [PATCH] md: Remove some code that can sleep from under a spinlockNeilBrown2006-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | And remove the comments that were put in inplace of a fix too.... Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | [PATCH] md: Don't clear bits in bitmap when writing to one device fails ↵NeilBrown2006-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | during recovery Currently a device failure during recovery leaves bits set in the bitmap. This normally isn't a problem as the offending device will be rejected because of errors. However if device re-adding is being used with non-persistent bitmaps, this can be a problem. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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