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2007-10-16filemap: convert some unsigned long to pgoff_tFengguang Wu
Convert some 'unsigned long' to pgoff_t. Signed-off-by: Fengguang Wu <wfg@mail.ustc.edu.cn> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16readahead: remove several readahead macrosFengguang Wu
Remove VM_MAX_CACHE_HIT, MAX_RA_PAGES and MIN_RA_PAGES. Signed-off-by: Fengguang Wu <wfg@mail.ustc.edu.cn> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16radixtree: introduce radix_tree_next_hole()Fengguang Wu
Introduce radix_tree_next_hole(root, index, max_scan) to scan radix tree for the first hole. It will be used in interleaved readahead. The implementation is dumb and obviously correct. It can help debug(and document) the possible smart one in future. Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Fengguang Wu <wfg@mail.ustc.edu.cn> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16readahead: combine file_ra_state.prev_index/prev_offset into prev_posFengguang Wu
Combine the file_ra_state members unsigned long prev_index unsigned int prev_offset into loff_t prev_pos It is more consistent and better supports huge files. Thanks to Peter for the nice proposal! [akpm@linux-foundation.org: fix shift overflow] Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Fengguang Wu <wfg@mail.ustc.edu.cn> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16readahead: mmap read-around simplificationFengguang Wu
Fold file_ra_state.mmap_hit into file_ra_state.mmap_miss and make it an int. Signed-off-by: Fengguang Wu <wfg@mail.ustc.edu.cn> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16readahead: compacting file_ra_stateFengguang Wu
Use 'unsigned int' instead of 'unsigned long' for readahead sizes. This helps reduce memory consumption on 64bit CPU when a lot of files are opened. CC: Andi Kleen <andi@firstfloor.org> Signed-off-by: Fengguang Wu <wfg@mail.ustc.edu.cn> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16Clean up duplicate includes in include/linux/memory_hotplug.hJesper Juhl
This patch cleans up duplicate includes in include/linux/memory_hotplug.h Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Acked-by: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16vmemmap: generify initialisation via helpersAndy Whitcroft
Convert the common vmemmap population into initialisation helpers for use by architecture vmemmap populators. All architecture implementing the SPARSEMEM_VMEMMAP variant supply an architecture specific vmemmap_populate() initialiser, which may make use of the helpers. This allows us to clean up and remove the initialisation Kconfig entries. With this patch there is a single SPARSEMEM_VMEMMAP_ENABLE Kconfig option to indicate use of that variant. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Acked-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16Generic Virtual Memmap support for SPARSEMEMChristoph Lameter
SPARSEMEM is a pretty nice framework that unifies quite a bit of code over all the arches. It would be great if it could be the default so that we can get rid of various forms of DISCONTIG and other variations on memory maps. So far what has hindered this are the additional lookups that SPARSEMEM introduces for virt_to_page and page_address. This goes so far that the code to do this has to be kept in a separate function and cannot be used inline. This patch introduces a virtual memmap mode for SPARSEMEM, in which the memmap is mapped into a virtually contigious area, only the active sections are physically backed. This allows virt_to_page page_address and cohorts become simple shift/add operations. No page flag fields, no table lookups, nothing involving memory is required. The two key operations pfn_to_page and page_to_page become: #define __pfn_to_page(pfn) (vmemmap + (pfn)) #define __page_to_pfn(page) ((page) - vmemmap) By having a virtual mapping for the memmap we allow simple access without wasting physical memory. As kernel memory is typically already mapped 1:1 this introduces no additional overhead. The virtual mapping must be big enough to allow a struct page to be allocated and mapped for all valid physical pages. This vill make a virtual memmap difficult to use on 32 bit platforms that support 36 address bits. However, if there is enough virtual space available and the arch already maps its 1-1 kernel space using TLBs (f.e. true of IA64 and x86_64) then this technique makes SPARSEMEM lookups even more efficient than CONFIG_FLATMEM. FLATMEM needs to read the contents of the mem_map variable to get the start of the memmap and then add the offset to the required entry. vmemmap is a constant to which we can simply add the offset. This patch has the potential to allow us to make SPARSMEM the default (and even the only) option for most systems. It should be optimal on UP, SMP and NUMA on most platforms. Then we may even be able to remove the other memory models: FLATMEM, DISCONTIG etc. [apw@shadowen.org: config cleanups, resplit code etc] [kamezawa.hiroyu@jp.fujitsu.com: Fix sparsemem_vmemmap init] [apw@shadowen.org: vmemmap: remove excess debugging] [apw@shadowen.org: simplify initialisation code and reduce duplication] [apw@shadowen.org: pull out the vmemmap code into its own file] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andy Whitcroft <apw@shadowen.org> Acked-by: Mel Gorman <mel@csn.ul.ie> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16sparsemem: record when a section has a valid mem_mapAndy Whitcroft
We have flags to indicate whether a section actually has a valid mem_map associated with it. This is never set and we rely solely on the present bit to indicate a section is valid. By definition a section is not valid if it has no mem_map and there is a window during init where the present bit is set but there is no mem_map, during which pfn_valid() will return true incorrectly. Use the existing SECTION_HAS_MEM_MAP flag to indicate the presence of a valid mem_map. Switch valid_section{,_nr} and pfn_valid() to this bit. Add a new present_section{,_nr} and pfn_present() interfaces for those users who care to know that a section is going to be valid. [akpm@linux-foundation.org: coding-syle fixes] Signed-off-by: Andy Whitcroft <apw@shadowen.org> Acked-by: Mel Gorman <mel@csn.ul.ie> Cc: Christoph Lameter <clameter@sgi.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16wake up from a serial portGuennadi Liakhovetski
Enable wakeup from serial ports, make it run-time configurable over sysfs, e.g., echo enabled > /sys/devices/platform/serial8250.0/tty/ttyS0/power/wakeup Requires # CONFIG_SYSFS_DEPRECATED is not set Following suggestions from Alan and Russell moved the may_wake_up checks to serial_core.c. This time actually tested - it does even work. Could someone, please, verify, that put_device after device_find_child is correct? Also would be nice to test with a Natsemi UART, that can wake up the system, if such systems exist. For this you just have to apply the patch below, issue the above "echo" command to one of your Natsemi port, suspend and resume your system, and verify that your Natsemi port still works. If you are actually capable of waking up the system from that port, would be nice to test that as well. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16provide stubs for enable_irq_wake() and disable_irq_wake()Guennadi Liakhovetski
Provide {enable,disable}_irq_wakeup dummies for undefined cross-compilers for platforms without CONFIG_GENERIC_IRQ. Needed by wake-up-from-a-serial-port.patch Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-168250_pci: Autodetect mainpine cardsAlan Cox
Add support for a whole range of boards. Some are partly autodetected but not fully correctly others (PCI Express notably) not at all. Stick all the right entries in. Thanks to Mainpine for information and testing. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16introduce DMA_MASK_NONE as a signal for unable to do DMAJames Bottomley
Some devices are incapable of DMA and need to be recognised as such. Introduce a NONE dma mask to facilitate this plus an inline function: is_device_dma_capable() to check this. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Tejun Heo <htejun@gmail.com> Cc: Natalie Protasevich <protasnb@gmail.com> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16Add assembler equivalents to __init{,date}_refokRalf Baechle
I need __INIT_REFOK to fix a MODPOST warning for a few MIPS configs which have to call init code from .text very early in the game due to bootloader issues. __INITDATA_REFOK is just for consistency. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16slow down printk during bootRandy Dunlap
Optionally add a boot delay after each kernel printk() call, crudely measured in milliseconds, with a maximum delay of 10 seconds per printk. Enable CONFIG_BOOT_PRINTK_DELAY=y and then add (e.g.): "lpj=loops_per_jiffy boot_delay=100" to the kernel command line. It has been useful in cases like "during boot, my machine just reboots or the screen goes black" by slowing down printk, (and adding initcall_debug), we can usually see the last thing that happened before the lights went out which is usually a valuable clue. [akpm@linux-foundation.org: not all architectures implement CONFIG_HZ] [akpm@linux-foundation.org: fix lots of stuff] [bunk@stusta.de: kernel/printk.c: make 2 variables static] [heiko.carstens@de.ibm.com: fix slow down printk on boot compile error] Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15docbook: fix filesystems contentRandy Dunlap
Fix filesystems docbook warnings. Warning(linux-2.6.23-git8//fs/debugfs/file.c:241): No description found for parameter 'name' Warning(linux-2.6.23-git8//fs/debugfs/file.c:241): No description found for parameter 'mode' Warning(linux-2.6.23-git8//fs/debugfs/file.c:241): No description found for parameter 'parent' Warning(linux-2.6.23-git8//fs/debugfs/file.c:241): No description found for parameter 'value' Warning(linux-2.6.23-git8//include/linux/jbd.h:404): No description found for parameter 'h_lockdep_map' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15docbook: fix usb contentRandy Dunlap
Fix USB docbook warnings. Warning(linux-2.6.23-git8//include/linux/usb/gadget.h:487): No description found for parameter 'g' Warning(linux-2.6.23-git8//include/linux/usb/gadget.h:506): No description found for parameter 'g' Warning(linux-2.6.23-git8//drivers/usb/core/hub.c:1416): No description found for parameter 'usb_dev' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (95 commits) [ARM] 4578/1: CM-x270: PCMCIA support [ARM] 4577/1: ITE 8152 PCI bridge support [ARM] 4576/1: CM-X270 machine support [ARM] pxa: Avoid pxa_gpio_mode() in gpio_direction_{in,out}put() [ARM] pxa: move pxa_set_mode() from pxa2xx_mainstone.c to mainstone.c [ARM] pxa: move pxa_set_mode() from pxa2xx_lubbock.c to lubbock.c [ARM] pxa: Make cpu_is_pxaXXX dependent on configuration symbols [ARM] pxa: PXA3xx base support [NET] smc91x: fix PXA DMA support code [SERIAL] Fix console initialisation ordering [ARM] pxa: tidy up arch/arm/mach-pxa/Makefile [ARM] Update arch/arm/Kconfig for drivers/Kconfig changes [ARM] 4600/1: fix kernel build failure with build-id-supporting binutils [ARM] 4599/1: Preserve ATAG list for use with kexec (2.6.23) [ARM] Rename consistent_sync() as dma_cache_maint() [ARM] 4572/1: ep93xx: add cirrus logic edb9307 support [ARM] 4596/1: S3C2412: Correct IRQs for SDI+CF and add decoding support [ARM] 4595/1: ns9xxx: define registers as void __iomem * instead of volatile u32 [ARM] 4594/1: ns9xxx: use the new gpio functions [ARM] 4593/1: ns9xxx: implement generic clockevents ...
2007-10-15Merge branch 'locks' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
* 'locks' of git://linux-nfs.org/~bfields/linux: nfsd: remove IS_ISMNDLCK macro Rework /proc/locks via seq_files and seq_list helpers fs/locks.c: use list_for_each_entry() instead of list_for_each() NFS: clean up explicit check for mandatory locks AFS: clean up explicit check for mandatory locks 9PFS: clean up explicit check for mandatory locks GFS2: clean up explicit check for mandatory locks Cleanup macros for distinguishing mandatory locks Documentation: move locks.txt in filesystems/ locks: add warning about mandatory locking races Documentation: move mandatory locking documentation to filesystems/ locks: Fix potential OOPS in generic_setlease() Use list_first_entry in locks_wake_up_blocks locks: fix flock_lock_file() comment Memory shortage can result in inconsistent flocks state locks: kill redundant local variable locks: reverse order of posix_locks_conflict() arguments
2007-10-15Merge branch 'master' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (42 commits) [IPV6]: Consolidate the ip6_pol_route_(input|output) pair [TCP]: Make snd_cwnd_cnt 32-bit [TCP]: Update the /proc/net/tcp documentation [NETNS]: Don't panic on creating the namespace's loopback [NEIGH]: Ensure that pneigh_lookup is protected with RTNL [INET]: kmalloc+memset -> kzalloc in frag_alloc_queue [ISDN]: Fix compile with CONFIG_ISDN_X25 disabled. [IPV6]: Replace sk_buff ** with sk_buff * in input handlers [SELINUX]: Update for netfilter ->hook() arg changes. [INET]: Consolidate the xxx_put [INET]: Small cleanup for xxx_put after evictor consolidation [INET]: Consolidate the xxx_evictor [INET]: Consolidate the xxx_frag_destroy [INET]: Consolidate xxx_the secret_rebuild [INET]: Consolidate the xxx_frag_kill [INET]: Collect common frag sysctl variables together [INET]: Collect frag queues management objects together [INET]: Move common fields from frag_queues in one place. [TG3]: Fix performance regression on 5705. [ISDN]: Remove local copy of device name to make sure renames work. ...
2007-10-15Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits) Input: use full RCU API Input: remove tsdev interface Input: add support for Blackfin BF54x Keypad controller Input: appletouch - another fix for idle reset logic HWMON: hdaps - switch to using input-polldev Input: add support for SEGA Dreamcast keyboard Input: omap-keyboard - don't pretend we support changing keymap Input: lifebook - fix X and Y axis range Input: usbtouchscreen - add support for GeneralTouch devices Input: fix open count handling in input interfaces Input: keyboard - add CapsShift lock Input: adbhid - produce all CapsLock key events Input: ALPS - add signature for ThinkPad R61 Input: jornada720_kbd - send MSC_SCAN events Input: add support for the HP Jornada 7xx (710/720/728) touchscreen Input: add support for HP Jornada 7xx onboard keyboard Input: add support for HP Jornada onboard keyboard (HP6XX) Input: ucb1400_ts - use schedule_timeout_uninterruptible Input: xpad - fix dependancy on LEDS class Input: auto-select INPUT for MAC_EMUMOUSEBTN option ... Resolved conflicts manually in drivers/hwmon/applesmc.c: converting from a class device to a device and converting to use input-polldev created a few apparently trivial clashes..
2007-10-15[TCP]: Make snd_cwnd_cnt 32-bitIlpo Järvinen
Very little point of having 32-bit snd_cnwd if this is not 32-bit as well, as a number of snd_cwnd incrementation formulas assume that snd_cwnd_cnt can be at least as large as snd_cwnd. Whether 32-bit is useful was discussed when e0ef57cc56c3c96 was made: http://marc.info/?l=linux-netdev&m=117218144409825&w=2 Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-15[ISDN]: Remove local copy of device name to make sure renames work.Karsten Keil
Signed-off-by: Karsten Keil <kkeil@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-15[NETFILTER]: Replace sk_buff ** with sk_buff *Herbert Xu
With all the users of the double pointers removed, this patch mops up by finally replacing all occurances of sk_buff ** in the netfilter API by sk_buff *. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-15[NETFILTER]: Do not copy skb in skb_make_writableHerbert Xu
Now that all callers of netfilter can guarantee that the skb is not shared, we no longer have to copy the skb in skb_make_writable. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-15[SKBUFF]: Add skb_morphHerbert Xu
This patch creates a new function skb_morph that's just like skb_clone except that it lets user provide the spare skb that will be overwritten by the one that's to be cloned. This will be used by IP fragment reassembly so that we get back the same skb that went in last (rather than the head skb that we get now which requires us to carry around double pointers all over the place). Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-15Add skb_is_gso_v6Brice Goglin
Add skb_is_gso_v6(). Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-15[ARM] 4577/1: ITE 8152 PCI bridge supportMike Rapoport
This patch provides driver for ITE 8152 PCI bridge. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-10-15Merge git://git.linux-nfs.org/pub/linux/nfs-2.6Linus Torvalds
* git://git.linux-nfs.org/pub/linux/nfs-2.6: (131 commits) NFSv4: Fix a typo in nfs_inode_reclaim_delegation NFS: Add a boot parameter to disable 64 bit inode numbers NFS: nfs_refresh_inode should clear cache_validity flags on success NFS: Fix a connectathon regression in NFSv3 and NFSv4 NFS: Use nfs_refresh_inode() in ops that aren't expected to change the inode SUNRPC: Don't call xprt_release in call refresh SUNRPC: Don't call xprt_release() if call_allocate fails SUNRPC: Fix buggy UDP transmission [23/37] Clean up duplicate includes in [2.6 patch] net/sunrpc/rpcb_clnt.c: make struct rpcb_program static SUNRPC: Use correct type in buffer length calculations SUNRPC: Fix default hostname created in rpc_create() nfs: add server port to rpc_pipe info file NFS: Get rid of some obsolete macros NFS: Simplify filehandle revalidation NFS: Ensure that nfs_link() returns a hashed dentry NFS: Be strict about dentry revalidation when doing exclusive create NFS: Don't zap the readdir caches upon error NFS: Remove the redundant nfs_reval_fsid() NFSv3: Always use directory post-op attributes in nfs3_proc_lookup ... Fix up trivial conflict due to sock_owned_by_user() cleanup manually in net/sunrpc/xprtsock.c
2007-10-15Merge branch 'v2.6.24-lockdep' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep * 'v2.6.24-lockdep' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep: lockdep: annotate dir vs file i_mutex lockdep: per filesystem inode lock class lockdep: annotate kprobes irq fiddling lockdep: annotate rcu_read_{,un}lock{,_bh} lockdep: annotate journal_start() lockdep: s390: connect the sysexit hook lockdep: x86_64: connect the sysexit hook lockdep: i386: connect the sysexit hook lockdep: syscall exit check lockdep: fixup mutex annotations lockdep: fix mismatched lockdep_depth/curr_chain_hash lockdep: Avoid /proc/lockdep & lock_stat infinite output lockdep: maintainers
2007-10-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-schedLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched: (140 commits) sched: sync wakeups preempt too sched: affine sync wakeups sched: guest CPU accounting: maintain guest state in KVM sched: guest CPU accounting: maintain stats in account_system_time() sched: guest CPU accounting: add guest-CPU /proc/<pid>/stat fields sched: guest CPU accounting: add guest-CPU /proc/stat field sched: domain sysctl fixes: add terminator comment sched: domain sysctl fixes: do not crash on allocation failure sched: domain sysctl fixes: unregister the sysctl table before domains sched: domain sysctl fixes: use for_each_online_cpu() sched: domain sysctl fixes: use kcalloc() Make scheduler debug file operations const sched: enable wake-idle on CONFIG_SCHED_MC=y sched: reintroduce topology.h tunings sched: allow the immediate migration of cache-cold tasks sched: debug, improve migration statistics sched: debug: increase width of debug line sched: activate task_hot() only on fair-scheduled tasks sched: reintroduce cache-hot affinity sched: speed up context-switches a bit ...
2007-10-15Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (207 commits) [SCSI] gdth: fix CONFIG_ISA build failure [SCSI] esp_scsi: remove __dev{init,exit} [SCSI] gdth: !use_sg cleanup and use of scsi accessors [SCSI] gdth: Move members from SCp to gdth_cmndinfo, stage 2 [SCSI] gdth: Setup proper per-command private data [SCSI] gdth: Remove gdth_ctr_tab[] [SCSI] gdth: switch to modern scsi host registration [SCSI] gdth: gdth_interrupt() gdth_get_status() & gdth_wait() fixes [SCSI] gdth: clean up host private data [SCSI] gdth: Remove virt hosts [SCSI] gdth: Reorder scsi_host_template intitializers [SCSI] gdth: kill gdth_{read,write}[bwl] wrappers [SCSI] gdth: Remove 2.4.x support, in-kernel changelog [SCSI] gdth: split out pci probing [SCSI] gdth: split out eisa probing [SCSI] gdth: split out isa probing gdth: Make one abuse of scsi_cmnd less obvious [SCSI] NCR5380: Use scsi_eh API for REQUEST_SENSE invocation [SCSI] usb storage: use scsi_eh API in REQUEST_SENSE execution [SCSI] scsi_error: Refactoring scsi_error to facilitate in synchronous REQUEST_SENSE ...
2007-10-15Merge branch 'nfs-server-stable' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
* 'nfs-server-stable' of git://linux-nfs.org/~bfields/linux: knfsd: query filesystem for NFSv4 getattr of FATTR4_MAXNAME knfsd: nfsv4 delegation recall should take reference on client knfsd: don't shutdown callbacks until nfsv4 client is freed knfsd: let nfsd manage timing out its own leases knfsd: Add source address to sunrpc svc errors knfsd: 64 bit ino support for NFS server svcgss: move init code into separate function knfsd: remove code duplication in nfsd4_setclientid() nfsd warning fix knfsd: fix callback rpc cred knfsd: move nfsv4 slab creation/destruction to module init/exit knfsd: spawn kernel thread to probe callback channel knfsd: nfs4 name->id mapping not correctly parsing negative downcall knfsd: demote some printk()s to dprintk()s knfsd: cleanup of nfsd4 cmp_* functions knfsd: delete code made redundant by map_new_errors nfsd: fix horrible indentation in nfsd_setattr nfsd: remove unused cache_for_each macro nfsd: tone down inaccurate dprintk
2007-10-15HID: fix HIDIOCGRDESC memory access in hidrawJiri Kosina
Fix bogus copying of data into userspace when HIDIOCGRDESC is issued. HID-transport layer makes sure that dev->hid->rdesc is not larger than HID_MAX_DESCRIPTOR_SIZE. Noticed-by: Al Viro <viro@ftp.linux.org.uk> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-15sched: guest CPU accounting: maintain stats in account_system_time()Laurent Vivier
modify account_system_time() to add cputime to cpustat->guest if we are running a VCPU. We add this cputime to cpustat->user instead of cpustat->system because this part of KVM code is in fact user code although it is executed in the kernel. We duplicate VCPU time between guest and user to allow an unmodified "top(1)" to display correct value. A modified "top(1)" is able to display good cpu user time and cpu guest time by subtracting cpu guest time from cpu user time. Update "gtime" in task_struct accordingly. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Acked-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-15sched: guest CPU accounting: add guest-CPU /proc/<pid>/stat fieldsLaurent Vivier
like for cpustat, introduce the "gtime" (guest time of the task) and "cgtime" (guest time of the task children) fields for the tasks. Modify signal_struct and task_struct. Modify /proc/<pid>/stat to display these new fields. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Acked-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-15sched: guest CPU accounting: add guest-CPU /proc/stat fieldLaurent Vivier
as recent CPUs introduce a third running state, after "user" and "system", we need a new field, "guest", in cpustat to store the time used by the CPU to run virtual CPU. Modify /proc/stat to display this new field. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Acked-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-15sched: enable wake-idle on CONFIG_SCHED_MC=yIngo Molnar
most multicore CPUs today have shared L2 caches, so tune things so that the spreading amongst cores is more aggressive. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-15sched: reintroduce topology.h tuningsIngo Molnar
reintroduce the 2.6.22 topology.h tunings again - they result in slightly better balancing. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-15sched: debug, improve migration statisticsIngo Molnar
add new migration statistics when SCHED_DEBUG and SCHEDSTATS is enabled. Available in /proc/<PID>/sched. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-15sched: reintroduce cache-hot affinityIngo Molnar
reintroduce a simplified version of cache-hot/cold scheduling affinity. This improves performance with certain SMP workloads, such as sysbench. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-15sched: prevent wakeup over-schedulingMike Galbraith
Prevent wakeup over-scheduling. Once a task has been preempted by a task of the same or lower priority, it becomes ineligible for repeated preemption by same until it has been ticked, or slept. Instead, the task is marked for preemption at the next tick. Tasks of higher priority still preempt immediately. Signed-off-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-15sched: group scheduling, sysfs tunablesDhaval Giani
Add tunables in sysfs to modify a user's cpu share. A directory is created in sysfs for each new user in the system. /sys/kernel/uids/<uid>/cpu_share Reading this file returns the cpu shares granted for the user. Writing into this file modifies the cpu share for the user. Only an administrator is allowed to modify a user's cpu share. Ex: # cd /sys/kernel/uids/ # cat 512/cpu_share 1024 # echo 2048 > 512/cpu_share # cat 512/cpu_share 2048 # Signed-off-by: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com> Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-15sched: cleanup: rename task_grp to task_groupIngo Molnar
cleanup: rename task_grp to task_group. No need to save two characters and 'grp' is annoying to read. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-15sched: cleanup, remove the TASK_NONINTERACTIVE flagMike Galbraith
Here's another piece of low hanging obsolete fruit. Remove obsolete TASK_NONINTERACTIVE. Signed-off-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-15sched: mark scheduling classes as constIngo Molnar
mark scheduling classes as const. The speeds up the code a bit and shrinks it: text data bss dec hex filename 40027 4018 292 44337 ad31 sched.o.before 40190 3842 292 44324 ad24 sched.o.after Signed-off-by: Ingo Molnar <mingo@elte.hu> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-15sched: speed up and simplify vslice calculationsPeter Zijlstra
speed up and simplify vslice calculations. [ From: Mike Galbraith <efault@gmx.de>: build fix ] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-15sched: clean up schedstats, cnt -> countIngo Molnar
rename all 'cnt' fields and variables to the less yucky 'count' name. yuckage noticed by Andrew Morton. no change in code, other than the /proc/sched_debug bkl_count string got a bit larger: text data bss dec hex filename 38236 3506 24 41766 a326 sched.o.before 38240 3506 24 41770 a32a sched.o.after Signed-off-by: Ingo Molnar <mingo@elte.hu> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-15sched: undo some of the recent changesIngo Molnar
undo some of the recent changes that are not needed after all, such as last_min_vruntime. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
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