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2007-02-13[MIPS] Make entry.S a little more readable.Franck Bui-Huu
When CONFIG_PREEMPT is not set, it also moves one branch instruction from ret_from_irq() to ret_from_exception(). Therefore we favour the return from irq case which should be more common than the other one. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-13[MIPS] Remove stray instruction from __get_user_asm_ll32.Ralf Baechle
This did result in double clearing of the error return value on success only but should make a meassurable overhead for sigreturn. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-13[MIPS] 32-bit: Fix warning about cast for fetching pointer from userspace.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-13[MIPS] DECstation: Fix irq handlingAtsushi Nemoto
When I post a patch (commit f431baa55abf8adeed0c718b51deacbc151f58f1), I just tried to not change behavior of existing codes, but it seems dec/int-handler.S had been broken since its previous commit 937a801576f954bd030d7c4a5a94571710d87c0b. The caller of plat_irq_dispatch do setup/restore TI_REGS($28), so dec's plat_irq_dispatch should not do it, and there is no need to adjust RA. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-13[MIPS] signals: make common _BLOCKABLE macroFranck Bui-Huu
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-13[MIPS] signal: Move sigframe definition for native O32/N64 into signal.cRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-13[MIPS] signal: Move {restore,setup}_sigcontext prototypes to their userRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-13[MIPS] signal: Fix warnings in o32 compat code.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-13[MIPS] IP27: Enable N32 support in defconfig.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-13Revert "[MIPS] Fix warning in get_user when fetching pointer object from ↵Ralf Baechle
userspace." This reverts commit 4ed3a77f38c023658784804cb39a7ce18063dc88.
2007-02-13[MIPS] Don't claim we support dma_declare_coherent_memory - we don't.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-13[MIPS] Unify dma-{coherent,noncoherent.ip27,ip32}Ralf Baechle
Platforms will now have to supply a function dma_device_is_coherent which returns if a particular device participates in the coherence domain. For most platforms this function will always return 0 or 1. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-13[MIPS] Improve branch prediction in ll/sc atomic operations.Ralf Baechle
Now that finally all supported versions of binutils have functioning support for .subsection use .subsection to tweak the branch prediction I did not modify the R10000 errata variants because it seems unclear if this will invalidate the workaround which actually relies on the cheesy prediction of branch likely to cause a misspredict if the sc was successful. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-11[PATCH] one more iomap s390 build fixHeiko Carstens
Commit 9ac7849e35f705830f7b016ff272b0ff1f7ff759 causes this on S390: drivers/built-in.o: In function `dmam_noncoherent_release': dma-mapping.c:(.text+0x1515c): undefined reference to `dma_free_noncoherent' drivers/built-in.o: In function `dmam_free_noncoherent': undefined reference to `dma_free_noncoherent' drivers/built-in.o: In function `dmam_alloc_noncoherent': undefined reference to `dma_alloc_noncoherent' make: *** [.tmp_vmlinux1] Error 1 Cc: Tejun Heo <htejun@gmail.com> Acked-by: Jeff Garzik <jeff@garzik.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11cfq-iosched: improve continue or break logic in cfq_dispatchJens Axboe
This improves performance considerably for sync requests when you have command queuing enabled. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-02-11cfq-iosched: remove the implicit queue kicking in slice expireJens Axboe
We only really need it for a process going away, so move it to those locations. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-02-11cfq-iosched: check whether a queue timed out in accountingJens Axboe
Makes it more fair for the residual slice count. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-02-11cfq-iosched: tweak the FIFO checkingJens Axboe
We currently check the FIFO once per slice. Optimize that a bit and only do it as the first thing for a new slice, so we don't end up doing a single request and then seek to the FIFO requests. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-02-11cfq-iosched: don't pass in queue for cfq_arm_slice_timer()Jens Axboe
It must always be the active queue, otherwise it's a bug. So just use the active_queue, don't pass it in explicitly. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-02-11cfq-iosched: account for slice over/under timeJens Axboe
If a slice uses less than it is entitled to (or perhaps more), include that in the decision on how much time to give it the next time it gets serviced. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-02-11cfq-iosched: defer slice activation to first request being activeJens Axboe
This better matches what time the queue is actually spending doing IO. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-02-11[PATCH] cfq-iosched: use last service point as the fairness criteriaJens Axboe
Right now we use slice_start, which gives async queues an unfair advantage. Chance that to service_last, and base the resorter on that. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-02-11cfq-iosched: document the cfqq flagsJens Axboe
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-02-11[PATCH] cfq-iosched: move on_rr check into cfq_resort_rr_list()Jens Axboe
Move the on_rr check into cfq_resort_rr_list(), every call site needs to check it anyway. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-02-11cfq-iosched: remove cfq_io_context last_queueJens Axboe
It hasn't been used for a while, kill it off and remove the old if 0 code chunk. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-02-11elevator: don't sort reads between writesJens Axboe
Don't allow elv_dispatch_sort() to mix reads and writes together, it's rarely a good idea. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-02-11elevator: abstract out the activate and deactivate functionsJens Axboe
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-02-11Merge git://oss.sgi.com:8090/xfs/xfs-2.6Linus Torvalds
* git://oss.sgi.com:8090/xfs/xfs-2.6: (33 commits) [XFS] Don't use kmap in xfs_iozero. [XFS] Remove a bunch of unused functions from XFS. [XFS] Remove unused arguments from the XFS_BTREE_*_ADDR macros. [XFS] Remove unused header files for MAC and CAP checking functionality. [XFS] Make freeze code a little cleaner. [XFS] Remove unused argument to xfs_bmap_finish [XFS] Clean up use of VFS attr flags [XFS] Remove useless memory barrier [XFS] XFS sysctl cleanups [XFS] Fix assertion in xfs_attr_shortform_remove(). [XFS] Fix callers of xfs_iozero() to zero the correct range. [XFS] Ensure a frozen filesystem has a clean log before writing the dummy [XFS] Fix sub-block zeroing for buffered writes into unwritten extents. [XFS] Re-initialize the per-cpu superblock counters after recovery. [XFS] Fix block reservation changes for non-SMP systems. [XFS] Fix block reservation mechanism. [XFS] Make growfs work for amounts greater than 2TB [XFS] Fix inode log item use-after-free on forced shutdown [XFS] Fix attr2 corruption with btree data extents [XFS] Workaround log space issue by increasing XFS_TRANS_PUSH_AIL_RESTARTS ...
2007-02-11Merge 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: Input: remove scan_keyb driver Input: i8042 - fix AUX IRQ delivery check Input: wistron - add support for Fujitsu-Siemens Amilo D88x0 Input: inport - use correct config option for ATIXL Input: HIL - handle erros from input_register_device() Input: tsdev - schedule removal Input: add Atlas button driver Input: ads7846 - be more compatible with the hwmon framework Input: ads7846 - detect pen up from GPIO state Input: ads7846 - select correct SPI mode Input: ads7846 - switch to using hrtimer Input: ads7846 - optionally leave Vref on during differential measurements Input: ads7846 - pluggable filtering logic Input: gpio-keys - keyboard driver for GPIO buttons Input: hid-ff - add support for Logitech Momo racing wheel Input: i8042 - really suppress ACK/NAK during panic blink Input: pc110pad - return proper error
2007-02-11[PATCH] fix fatal kernel-doc errorRandy Dunlap
Teach kernel-doc to handle functions that look like the new pcim_iomap_table(). Fixes this fatal error in scripts/kernel-doc: DOCPROC Documentation/DocBook/kernel-api.xml Error(/tester/linsrc/linux-2.6.20-git6//drivers/pci/pci.c:1351): cannot understand prototype: 'void __iomem * const * pcim_iomap_table(struct pci_dev *pdev) ' make[1]: *** [Documentation/DocBook/kernel-api.xml] Error 1 make: *** [htmldocs] Error 2 Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11Merge 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: (97 commits) [SCSI] zfcp: removed wrong comment [SCSI] zfcp: use of uninitialized variable [SCSI] zfcp: Invalid locking order [SCSI] aic79xx: use dma_get_required_mask() [SCSI] aic79xx: fix bracket mismatch in unused macro [SCSI] BusLogic: Replace 'boolean' by 'bool' [SCSI] advansys: clean up warnings [SCSI] 53c7xx: brackets fix in uncompiled code [SCSI] nsp_cs: remove old scsi code [SCSI] aic79xx: make ahd_match_scb() static [SCSI] DAC960: kmalloc->kzalloc/Casting cleanups [SCSI] scsi_kmap_atomic_sg(): check that local irqs are disabled [SCSI] Buslogic: local_irq_disable() is redundant after local_irq_save() [SCSI] aic94xx: update for v28 firmware [SCSI] scsi_error: Fix lost EH commands [SCSI] aic94xx: Add default bus reset handler [SCSI] aic94xx: Remove TMF result code munging [SCSI] libsas: Add an LU reset mechanism to the error handler [SCSI] libsas: Don't BUG when connecting two expanders via wide port [SCSI] st: fix Tape dies if wrong block size used, bug 7919 ...
2007-02-11Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] signal: do not inline handle_signal() [MIPS] signal: do not use save_static_function() anymore [MIPS] signal32: no need to save c0_status register in setup_sigcontext32() [MIPS] signal32: reduce {setup,restore}_sigcontext32 sizes [MIPS] signal: factorize debug code [MIPS] signal: test return value of install_sigtramp() [MIPS] signal32: remove duplicate code [MIPS] signal: clean up sigframe structure [MIPS] signal: do not inline functions in signal-common.h [MIPS] signals: reduce {setup,restore}_sigcontext sizes [MIPS] Fix warning in get_user when fetching pointer object from userspace. [MIPS] Fix eth2 platform device id for jaguar_atx and ocelot_3 platforms [MIPS] JMR3927 and RBTX49x7 support little endian [MIPS] RBTX49x7: declare prom_getcmdline() [MIPS] RTLX: Sprinkle device model code into code to make udev happier. [MIPS] VPE: Sprinkle device model code into code to make udev happier.
2007-02-11Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: tifm_sd: treat "status error" as normal command completion mmc: wbsd: Remove stray kunmap_atomic() mmc: sdhci: Stop asking for mail mmc: sdhci: Remove driver version mmc: wbsd: Remove driver version
2007-02-11Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (45 commits) [IPV4]: Restore multipath routing after rt_next changes. [XFRM] IPV6: Fix outbound RO transformation which is broken by IPsec tunnel patch. [NET]: Reorder fields of struct dst_entry [DECNET]: Convert decnet route to use the new dst_entry 'next' pointer [IPV6]: Convert ipv6 route to use the new dst_entry 'next' pointer [IPV4]: Convert ipv4 route to use the new dst_entry 'next' pointer [NET]: Introduce union in struct dst_entry to hold 'next' pointer [DECNET]: fix misannotation of linkinfo_dn [DECNET]: FRA_{DST,SRC} are le16 for decnet [UDP]: UDP can use sk_hash to speedup lookups [NET]: Fix whitespace errors. [NET] XFRM: Fix whitespace errors. [NET] X25: Fix whitespace errors. [NET] WANROUTER: Fix whitespace errors. [NET] UNIX: Fix whitespace errors. [NET] TIPC: Fix whitespace errors. [NET] SUNRPC: Fix whitespace errors. [NET] SCTP: Fix whitespace errors. [NET] SCHED: Fix whitespace errors. [NET] RXRPC: Fix whitespace errors. ...
2007-02-11Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: Update defconfig. [SPARC64]: Add PCI MSI support on Niagara. [SPARC64] IRQ: Use irq_desc->chip_data instead of irq_desc->handler_data [SPARC64]: Add obppath sysfs attribute for SBUS and PCI devices. [PARTITION]: Add whole_disk attribute.
2007-02-11[PATCH] add missing io...._rep() on sparc32Al Viro
same as on sparc64 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] Switch s390 to NO_IOMEMAl Viro
Martin Schwidefsky wrote: "s390 does not even need (in|out)b(_p|). I wondered what else from io.h do we not need. The answer is: almost nothing. With the devres patch from Al and the dma-mapping patch from Heiko we can get rid of iomem and all associated definitions." So we'll just need to replace NO_IOPORT with NO_IOMEM in Kconfig and kill arch/s390/mm/ioremap.c. BTW, there's an annoying bit of junk in there - IO_SPACE_LIMIT. We only need it for /proc/ioports, which AFAICS shouldn't even be there on s390 (or uml). OTOH, removing that thing would mean a user-visible change - we go from "empty file in /proc" to "no such file in /proc"... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] sort the devres mess outAl Viro
* Split the implementation-agnostic stuff in separate files. * Make sure that targets using non-default request_irq() pull kernel/irq/devres.o * Introduce new symbols (HAS_IOPORT and HAS_IOMEM) defaulting to positive; allow architectures to turn them off (we needed these symbols anyway for dependencies of quite a few drivers). * protect the ioport-related parts of lib/devres.o with CONFIG_HAS_IOPORT. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] FRA_{DST,SRC} are le16 for decnetAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] fix misannotation of linkinfo_dnAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] fix DocBook buildDon Mullis
Fix DocBook build. Regression was introduced by gregkh-usb-usb-linux-usb_ch9h-becomes-linux-usb-ch9h.patch Tested by `make htmldocs`. Signed-off-by: Don Mullis <dwm@meer.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] fix gregkh-usb-usbcore-remove-unused-bandwith-related-codeAndrew Morton
drivers/isdn/gigaset/bas-gigaset.c: In function 'dump_urb': drivers/isdn/gigaset/bas-gigaset.c:258: error: 'struct urb' has no member named 'bandwidth' Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] CHAR-Amiserial: turn local_save_flags() + local_irq_disable() into ↵Jiri Kosina
local_irq_save() drivers/char/amiserial.c::rs_write() contains local_irq_disable() after local_save_flags(). Turn it into local_irq_save(). Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] rapidio: fix multi-switch enumerationAlexandre Bounine
This patch contains two fixes for RapisIO enumeration logic: 1. Fix enumeration in configurations with multiple switches. The patch adds: a. Enumeration of an empty switch. Empty switch is a switch that does not have any endpoint devices attached to it (except host device or previous switch in a chain). New code assigns a phony destination ID associated with the switch and sets up corresponding routes. b. Adds a second pass to the enumeration to setup routes to devices discovered after switch was scanned. 2. Fix enumeration failure when riohdid parameter has non-zero value. Current version fails to setup response path to the host when it has destination ID other that 0. Signed-off-by: Alexandre Bounine <alexandreb@tundra.com> Acked-by: Matt Porter <mporter@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] tty: cleanup release_memChristoph Hellwig
release_mem contains two copies of exactly the same code. Refactor these into a new helper, release_tty. The only change in behaviour is that the driver reference count is now decremented after the master tty has been freed instead of before. [penberg@cs.helsinki.fi: fix use-after-free in release_tty.] Cc: Alan Cox <alan@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] ifdef ->rchar, ->wchar, ->syscr, ->syscw from task_structAlexey Dobriyan
They are fat: 4x8 bytes in task_struct. They are uncoditionally updated in every fork, read, write and sendfile. They are used only if you have some "extended acct fields feature". And please, please, please, read(2) knows about bytes, not characters, why it is called "rchar"? Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Jay Lan <jlan@engr.sgi.com> Cc: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] Move TASK_XACCT, TASK_IO_ACCOUNTING up in menusAlexey Dobriyan
Since they depends on TASKSTATS, it would be nice to move them closer to another options depending on TASKSTATS. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] _proc_do_string(): fix short readsOleg Nesterov
If you try to read things like /proc/sys/kernel/osrelease with single-byte reads, you get just one byte and then EOF. This is because _proc_do_string() assumes that the caller is read()ing into a buffer which is large enough to fit the whole string in a single hit. Fix. Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] Fix sparse annotation of spin unlock macros in one casePavel Roskin
SMP systems without premption and spinlock debugging enabled use unlock macros that don't tell sparse that the lock is being released. Add sparse annotations in this case. Signed-off-by: Pavel Roskin <proski@gnu.org> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11[PATCH] Change constant zero to NOTIFY_DONE in ratelimit_handler()Paul E. McKenney
Change a hard-coded constant 0 to the symbolic equivalent NOTIFY_DONE in the ratelimit_handler() CPU notifier handler function. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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