1. 10 Dec, 2006 38 commits
    • Andrew Morton's avatar
      [PATCH] io-accounting: via taskstats · 4a7864ca
      Andrew Morton authored
      Deliver IO accounting via taskstats.
      
      Cc: Jay Lan <jlan@sgi.com>
      Cc: Shailabh Nagar <nagar@watson.ibm.com>
      Cc: Balbir Singh <balbir@in.ibm.com>
      Cc: Chris Sturtivant <csturtiv@sgi.com>
      Cc: Tony Ernst <tee@sgi.com>
      Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
      Cc: David Wright <daw@sgi.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      4a7864ca
    • Andrew Morton's avatar
      [PATCH] cleanup taskstats.h · f2f1f8a3
      Andrew Morton authored
      Fix weird whitespace mangling in taskstats.h
      
      Cc: Jay Lan <jlan@sgi.com>
      Cc: Shailabh Nagar <nagar@watson.ibm.com>
      Cc: Balbir Singh <balbir@in.ibm.com>
      Cc: Chris Sturtivant <csturtiv@sgi.com>
      Cc: Tony Ernst <tee@sgi.com>
      Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
      Cc: David Wright <daw@sgi.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      f2f1f8a3
    • Andrew Morton's avatar
      [PATCH] io-accounting: report in procfs · aba76fdb
      Andrew Morton authored
      Add a simple /proc/pid/io to show the IO accounting fields.
      
      Maybe this shouldn't be merged in mainline - the preferred reporting channel
      is taskstats.  But given the poor state of our userspace support for
      taskstats, this is useful for developer-testing, at least.  And it improves
      the changes that the procps developers will wire it up into top(1).  Opinions
      are sought.
      
      The patch also wires up the existing IO-accounting fields.
      
      It's a bit racy on 32-bit machines: if process A reads process B's
      /proc/pid/io while process B is updating one of those 64-bit counters, process
      A could see an intermediate result.
      
      Cc: Jay Lan <jlan@sgi.com>
      Cc: Shailabh Nagar <nagar@watson.ibm.com>
      Cc: Balbir Singh <balbir@in.ibm.com>
      Cc: Chris Sturtivant <csturtiv@sgi.com>
      Cc: Tony Ernst <tee@sgi.com>
      Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
      Cc: David Wright <daw@sgi.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      aba76fdb
    • Andrew Morton's avatar
      [PATCH] io-accounting: direct-io · 98c4d57d
      Andrew Morton authored
      Account for direct-io.
      
      Cc: Jay Lan <jlan@sgi.com>
      Cc: Shailabh Nagar <nagar@watson.ibm.com>
      Cc: Balbir Singh <balbir@in.ibm.com>
      Cc: Chris Sturtivant <csturtiv@sgi.com>
      Cc: Tony Ernst <tee@sgi.com>
      Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
      Cc: David Wright <daw@sgi.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      98c4d57d
    • Andrew Morton's avatar
      [PATCH] io-accounting-read-accounting cifs fix · 6f88cc2e
      Andrew Morton authored
      CIFS implements ->readpages and doesn't use read_cache_pages().  So wire the
      read IO accounting up within CIFS.
      
      Cc: Jay Lan <jlan@sgi.com>
      Cc: Shailabh Nagar <nagar@watson.ibm.com>
      Cc: Balbir Singh <balbir@in.ibm.com>
      Cc: Chris Sturtivant <csturtiv@sgi.com>
      Cc: Tony Ernst <tee@sgi.com>
      Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
      Cc: Steven French <sfrench@us.ibm.com>
      Cc: David Wright <daw@sgi.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      6f88cc2e
    • Andrew Morton's avatar
      [PATCH] io-accounting-read-accounting nfs fix · 8bde37f0
      Andrew Morton authored
      nfs's ->readpages uses read_cache_pages().  Wire it up there.
      
      [wfg@mail.ustc.edu.cn: account only successful nfs/fuse reads]
      Cc: Jay Lan <jlan@sgi.com>
      Cc: Shailabh Nagar <nagar@watson.ibm.com>
      Cc: Balbir Singh <balbir@in.ibm.com>
      Cc: Chris Sturtivant <csturtiv@sgi.com>
      Cc: Tony Ernst <tee@sgi.com>
      Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
      Cc: David Wright <daw@sgi.com>
      Signed-off-by: default avatarFengguang Wu <wfg@mail.ustc.edu.cn>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      8bde37f0
    • Andrew Morton's avatar
      [PATCH] io-accounting: read accounting · faccbd4b
      Andrew Morton authored
      Wire up read accounting for block devices, within submit_bio().
      
      Cc: Jay Lan <jlan@sgi.com>
      Cc: Shailabh Nagar <nagar@watson.ibm.com>
      Cc: Balbir Singh <balbir@in.ibm.com>
      Cc: Chris Sturtivant <csturtiv@sgi.com>
      Cc: Tony Ernst <tee@sgi.com>
      Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
      Cc: David Wright <daw@sgi.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      faccbd4b
    • Andrew Morton's avatar
      [PATCH] io-accounting: write-cancel accounting · e08748ce
      Andrew Morton authored
      Account for the number of byte writes which this process caused to not happen
      after all.
      
      Cc: Jay Lan <jlan@sgi.com>
      Cc: Shailabh Nagar <nagar@watson.ibm.com>
      Cc: Balbir Singh <balbir@in.ibm.com>
      Cc: Chris Sturtivant <csturtiv@sgi.com>
      Cc: Tony Ernst <tee@sgi.com>
      Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
      Cc: David Wright <daw@sgi.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      e08748ce
    • Andrew Morton's avatar
      [PATCH] io-accounting: write accounting · 55e829af
      Andrew Morton authored
      Accounting writes is fairly simple: whenever a process flips a page from clean
      to dirty, we accuse it of having caused a write to underlying storage of
      PAGE_CACHE_SIZE bytes.
      
      This may overestimate the amount of writing: the page-dirtying may cause only
      one buffer_head's worth of writeout.  Fixing that is possible, but probably a
      bit messy and isn't obviously important.
      
      Cc: Jay Lan <jlan@sgi.com>
      Cc: Shailabh Nagar <nagar@watson.ibm.com>
      Cc: Balbir Singh <balbir@in.ibm.com>
      Cc: Chris Sturtivant <csturtiv@sgi.com>
      Cc: Tony Ernst <tee@sgi.com>
      Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
      Cc: David Wright <daw@sgi.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      55e829af
    • Andrew Morton's avatar
      [PATCH] clean up __set_page_dirty_nobuffers() · 8c08540f
      Andrew Morton authored
      Save a tabstop in __set_page_dirty_nobuffers() and __set_page_dirty_buffers()
      and a few other places.  No functional changes.
      
      Cc: Jay Lan <jlan@sgi.com>
      Cc: Shailabh Nagar <nagar@watson.ibm.com>
      Cc: Balbir Singh <balbir@in.ibm.com>
      Cc: Chris Sturtivant <csturtiv@sgi.com>
      Cc: Tony Ernst <tee@sgi.com>
      Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
      Cc: David Wright <daw@sgi.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      8c08540f
    • Andrew Morton's avatar
      [PATCH] io-accounting: core statistics · 7c3ab738
      Andrew Morton authored
      The present per-task IO accounting isn't very useful.  It simply counts the
      number of bytes passed into read() and write().  So if a process reads 1MB
      from an already-cached file, it is accused of having performed 1MB of I/O,
      which is wrong.
      
      (David Wright had some comments on the applicability of the present logical IO accounting:
      
        For billing purposes it is useless but for workload analysis it is very
        useful
      
        read_bytes/read_calls  average read request size
        write_bytes/write_calls average write request size
      
        read_bytes/read_blocks ie logical/physical can indicate hit rate or thrashing
        write_bytes/write_blocks  ie logical/physical  guess since pdflush writes can
                                                      be missed
      
        I often look for logical larger than physical to see filesystem cache
        problems.  And the bytes/cpusec can help find applications that are
        dominating the cache and causing slow interactive response from page cache
        contention.
      
        I want to find the IO intensive applications and make sure they are doing
        efficient IO.  Thus the acctcms(sysV) or csacms command would give the high
        IO commands).
      
      This patchset adds new accounting which tries to be more accurate.  We account
      for three things:
      
      reads:
      
        attempt to count the number of bytes which this process really did cause
        to be fetched from the storage layer.  Done at the submit_bio() level, so it
        is accurate for block-backed filesystems.  I also attempt to wire up NFS and
        CIFS.
      
      writes:
      
        attempt to count the number of bytes which this process caused to be sent
        to the storage layer.  This is done at page-dirtying time.
      
        The big inaccuracy here is truncate.  If a process writes 1MB to a file
        and then deletes the file, it will in fact perform no writeout.  But it will
        have been accounted as having caused 1MB of write.
      
        So...
      
      cancelled_writes:
      
        account the number of bytes which this process caused to not happen, by
        truncating pagecache.
      
        We _could_ just subtract this from the process's `write' accounting.  But
        that means that some processes would be reported to have done negative
        amounts of write IO, which is silly.
      
        So we just report the raw number and punt this decision up to userspace.
      
      Now, we _could_ account for writes at the physical I/O level.  But
      
      - This would require that we track memory-dirtying tasks at the per-page
        level (would require a new pointer in struct page).
      
      - It would mean that IO statistics for a process are usually only available
        long after that process has exitted.  Which means that we probably cannot
        communicate this info via taskstats.
      
      This patch:
      
      Wire up the kernel-private data structures and the accessor functions to
      manipulate them.
      
      Cc: Jay Lan <jlan@sgi.com>
      Cc: Shailabh Nagar <nagar@watson.ibm.com>
      Cc: Balbir Singh <balbir@in.ibm.com>
      Cc: Chris Sturtivant <csturtiv@sgi.com>
      Cc: Tony Ernst <tee@sgi.com>
      Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net>
      Cc: David Wright <daw@sgi.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      7c3ab738
    • Sergei Shtylyov's avatar
      [PATCH] pdc202xx_new: fix PLL/timing issues · 47694bb8
      Sergei Shtylyov authored
      Fix the CRC errors in the higher UltraDMA modes with the Promise PDC20268
      and newer chips that always occur on non-x86 machines and when there are
      more than 2 adapters on x86 machines.  Fix the overclocking issue for
      PDC20269 and newer chips that occurs when an UltraDMA/133 capable drive is
      connected.  Here's the summary of changes:
      
      - add code to detect the PLL input clock detection and setup it output clock,
        remove the PowerMac hacks;
      
      - replace the macros accessing the indexed regiters with functions, switch to
        using them where appropriate, gather the PIO/MWDMA/UDMA timings into tables;
      
      - rewrite the speedproc() handler to set the drive's transfer mode first, and
        then override the timing registers set by hardware on UltraDMA/133 chips;
      
      - use better criterion for determining higher UltraDMA modes, and add comment
        concerning the doubtful value of the code enabling IORDY/prefetch;
      
      - replace the stupid 'pdcnew_new_' prefixes with mere 'pdcnew_';
      
      - get rid of unneded spaces, parens and type casts, clean up some printk's,
        add some new lines here and there...
      
      This work is loosely based on these former patches by Albert Lee:
      
      [1] http://marc.theaimsgroup.com/?l=linux-ide&m=110992442032300
      [2] http://marc.theaimsgroup.com/?l=linux-ide&m=110992457729382
      [3] http://marc.theaimsgroup.com/?l=linux-ide&m=110992474205555
      [4] http://marc.theaimsgroup.com/?l=linux-ide&m=111019224802939
      
      Some PLL clock detection code was backported from his pata_pdc2027x driver...
      
      This code has been successfully tested by me on PDC2026[89] chips.
      
      I tried to keep this rework as several patches but it made no sense: [2] was
      largely a modification of the non-working timing override code, [3] by itself
      extended the overclocking issue to the case of non-UltraDMA/133 drives, and
      finally, the cleanup patch based on [1] ended up rejected...
      Signed-off-by: default avatarSergei Shtylyov <sshtylyov@ru.mvista.com>
      Cc: Albert Lee <albertcc@tw.ibm.com>
      Acked-by: default avatarAlan Cox <alan@lxorguk.ukuu.org.uk>
      Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      47694bb8
    • David Woodhouse's avatar
      [PATCH] Fix noise in futex.h · 58f64d83
      David Woodhouse authored
      There are some kernel-only bits in the middle of <linux/futex.h> which
      should be removed in what we export to userspace.
      Signed-off-by: default avatarDavid Woodhouse <dwmw2@infradead.org>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      58f64d83
    • Alexey Dobriyan's avatar
      [PATCH] sysctl: remove unused "context" param · 1f29bcd7
      Alexey Dobriyan authored
      Signed-off-by: default avatarAlexey Dobriyan <adobriyan@gmail.com>
      Cc: Andi Kleen <ak@suse.de>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: David Howells <dhowells@redhat.com>
      Cc: Ralf Baechle <ralf@linux-mips.org>
      Cc: "Eric W. Biederman" <ebiederm@xmission.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      1f29bcd7
    • Alexey Dobriyan's avatar
      [PATCH] sysctl: remove some OPs · 98d7340c
      Alexey Dobriyan authored
      kernel.cap-bound uses only OP_SET and OP_AND
      Signed-off-by: default avatarAlexey Dobriyan <adobriyan@gmail.com>
      Cc: "Eric W. Biederman" <ebiederm@xmission.com>
      Cc: Chris Wright <chrisw@sous-sol.org>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      98d7340c
    • Corey Minyard's avatar
      [PATCH] IPMI: misc fixes · 1d5636cc
      Corey Minyard authored
      Fix various problems pointed out by Andrew Morton and others:
        * platform_device_unregister checks for NULL, no need to check here.
        * Formatting fixes.
        * Remove big macro and convert to a function.
        * Use strcmp instead of defining a broken case-insensitive comparison,
          and make the output parameter info match the case of the input one
          (change "I/O" to "i/o").
        * Return the length instead of 0 from the hotmod parameter handler.
        * Remove some unused cruft.
        * The trydefaults parameter only has to do with scanning the "standard"
          addresses, don't check for that on ACPI.
      Signed-off-by: default avatarCorey Minyard <cminyard@acm.org>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      1d5636cc
    • Randy Dunlap's avatar
      [PATCH] IPMI: remove zero inits · 0c8204b3
      Randy Dunlap authored
      Remove all =0 and =NULL from static initializers.  They are not needed and
      removing them saves space in the object files.
      Signed-off-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
      Signed-off-by: default avatarCorey Minyard <minyard@acm.org>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      0c8204b3
    • Alessandro Zummo's avatar
    • Andrew Victor's avatar
      [PATCH] AT91RM9200 RTC · 7fc39f6d
      Andrew Victor authored
      The new Atmel AT91SAM9261 and AT91SAM9260 processors do not have the
      internal RTC peripheral.  This RTC driver is therefore
      AT91RM9200-specific.
      
      This patch renames rtc-at91.c to rtc-at91rm9200.c, and changes the name
      of the configuration option.
      Signed-off-by: default avatarAndrew Victor <andrew@sanpeople.com>
      Cc: Alessandro Zummo <a.zummo@towertech.it>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      7fc39f6d
    • David Brownell's avatar
      [PATCH] RTCs don't use i2c_adapter.dev · a14e1893
      David Brownell authored
      Update more I2C drivers that live outside drivers/i2c to understand that using
      adapter->dev is not The Way.  When actually referring to the adapter hardware,
      adapter->class_dev.dev is the answer.  When referring to a device connected to
      it, client->dev.dev is the answer.
      Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
      Acked-by: default avatarAlessandro Zummo <a.zummo@towertech.it>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      a14e1893
    • Scott Wood's avatar
      [PATCH] rtc: Add rtc_merge_alarm() · 884b4aaa
      Scott Wood authored
      Add rtc_merge_alarm(), which can be used by rtc drivers to turn a partially
      specified alarm expiry (i.e.  most significant fields set to -1, as with the
      RTC_ALM_SET ioctl()) into a fully specified expiry.
      
      If the most significant specified field is earlier than the current time, the
      least significant unspecified field is incremented.
      Signed-off-by: Scott Wood's avatarScott Wood <scottwood@freescale.com>
      Acked-by: default avatarAlessandro Zummo <a.zummo@towertech.it>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      884b4aaa
    • Randy Dunlap's avatar
      [PATCH] geode crypto is PCI device · 9080d0ae
      Randy Dunlap authored
      This driver seems to be for a PCI device.
      
      drivers/crypto/geode-aes.c:384: warning: implicit declaration of function 'pci_release_regions'
      drivers/crypto/geode-aes.c:397: warning: implicit declaration of function 'pci_request_regions'
      Signed-off-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
      Acked-by: default avatarJordan Crouse <jordan.crouse@amd.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      9080d0ae
    • Randy Dunlap's avatar
      [PATCH] freezer.h uses task_struct fields · 5c543eff
      Randy Dunlap authored
      freezer.h uses task_struct fields so it should include sched.h.
      
        CC [M]  fs/jfs/jfs_txnmgr.o
      In file included from fs/jfs/jfs_txnmgr.c:49:
      include/linux/freezer.h: In function 'frozen':
      include/linux/freezer.h:9: error: dereferencing pointer to incomplete type
      include/linux/freezer.h:9: error: 'PF_FROZEN' undeclared (first use in this function)
      include/linux/freezer.h:9: error: (Each undeclared identifier is reported only once
      include/linux/freezer.h:9: error: for each function it appears in.)
      include/linux/freezer.h: In function 'freezing':
      include/linux/freezer.h:17: error: dereferencing pointer to incomplete type
      include/linux/freezer.h:17: error: 'PF_FREEZE' undeclared (first use in this function)
      include/linux/freezer.h: In function 'freeze':
      include/linux/freezer.h:26: error: dereferencing pointer to incomplete type
      include/linux/freezer.h:26: error: 'PF_FREEZE' undeclared (first use in this function)
      include/linux/freezer.h: In function 'do_not_freeze':
      include/linux/freezer.h:34: error: dereferencing pointer to incomplete type
      include/linux/freezer.h:34: error: 'PF_FREEZE' undeclared (first use in this function)
      include/linux/freezer.h: In function 'thaw_process':
      include/linux/freezer.h:43: error: dereferencing pointer to incomplete type
      include/linux/freezer.h:43: error: 'PF_FROZEN' undeclared (first use in this function)
      include/linux/freezer.h:44: warning: implicit declaration of function 'wake_up_process'
      include/linux/freezer.h: In function 'frozen_process':
      include/linux/freezer.h:55: error: dereferencing pointer to incomplete type
      include/linux/freezer.h:55: error: dereferencing pointer to incomplete type
      include/linux/freezer.h:55: error: 'PF_FREEZE' undeclared (first use in this function)
      include/linux/freezer.h:55: error: 'PF_FROZEN' undeclared (first use in this function)
      fs/jfs/jfs_txnmgr.c: In function 'freezing':
      include/linux/freezer.h:18: warning: control reaches end of non-void function
      make[2]: *** [fs/jfs/jfs_txnmgr.o] Error 1
      Signed-off-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
      Acked-by: default avatarDave Kleikamp <shaggy@linux.vnet.ibm.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      5c543eff
    • Chuck Ebbert's avatar
      [PATCH] Document how to decode an IOCTL number · cf1b939e
      Chuck Ebbert authored
      Document how to decode a binary IOCTL number.
      Signed-off-by: default avatarChuck Ebbert <76306.1226@compuserve.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      cf1b939e
    • Andrew Morton's avatar
      [PATCH] submit checklist update · 0dd4e5b8
      Andrew Morton authored
      Mention the new fault-injection test framework.
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      0dd4e5b8
    • Randy Dunlap's avatar
      [PATCH] CodingStyle updates · b3fc9941
      Randy Dunlap authored
      Add some kernel coding style comments, mostly pulled from emails
      by Andrew Morton, Jesper Juhl, and Randy Dunlap.
      
      - add paragraph on switch/case indentation (with fixes)
      - add paragraph on multiple-assignments
      - add more on Braces
      - add section on Spaces; add typeof, alignof, & __attribute__ with sizeof;
        add more on postfix/prefix increment/decrement operators
      - add paragraph on function breaks in source files; add info on
        function prototype parameter names
      - add paragraph on EXPORT_SYMBOL placement
      - add section on /*-comment style, long-comment style, and data
        declarations and comments
      - correct some chapter number references that were missed when
        chapters were renumbered
      Signed-off-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
      Acked-by: default avatarJesper Juhl <jesper.juhl@gmail.com>
      Acked-by: default avatarJan Engelhardt <jengelh@gmx.de>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      b3fc9941
    • Stephen Street's avatar
      [PATCH] spi: stabilize PIO mode transfers on PXA2xx systems · 8d94cc50
      Stephen Street authored
      Stabilize PIO mode transfers against a range of word sizes and FIFO
      thresholds and fixes word size setup/override issues.
      
      1) 16 and 32 bit DMA/PIO transfers broken due to timing differences.
      2) Potential for bad transfer counts due to transfer size assumptions.
      3) Setup function broken is multiple ways.
      4) Per transfer bit_per_word changes break DMA setup in pump_tranfers.
      5) False positive timeout are not errors.
      6) Changes in pxa2xx_spi_chip not effective in calls to setup.
      7) Timeout scaling wrong for PXA255 NSSP.
      8) Driver leaks memory while busy during unloading.
      
      Known issues:
      
      SPI_CS_HIGH and SPI_LSB_FIRST settings in struct spi_device are not handled.
      
      Testing:
      
      This patch has been test against the "random length, random bits/word,
      random data (verified on loopback) and stepped baud rate by octaves
      (3.6MHz to 115kHz)" test.  It is robust in PIO mode, using any
      combination of tx and rx thresholds, and also in DMA mode (which
      internally computes the thresholds).
      
      Much thanks to Ned Forrester for exhaustive reviews, fixes and testing.
      The driver is substantially better for his efforts.
      Signed-off-by: default avatarStephen Street <stephen@streetfiresound.com>
      Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      8d94cc50
    • Alan Cox's avatar
      [PATCH] ide: complete switch to pci_get · 6451956a
      Alan Cox authored
      The reverse get function allows the final piece of the switching for the old
      IDE layer
      Signed-off-by: default avatarAlan Cox <alan@redhat.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      6451956a
    • Chris Zankel's avatar
      [PATCH] xtensa: fix system call interface · fc4fb2ad
      Chris Zankel authored
      This is a long outstanding patch to finally fix the syscall interface.  The
      constants used for the system calls are those we have provided in our libc
      patches.  This patch also fixes the shmbuf and stat structure, and fcntl
      definitions.
      Signed-off-by: default avatarChris Zankel <chris@zankel.net>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      fc4fb2ad
    • Chris Zankel's avatar
      [PATCH] xtensa: remove extra header files · 173d6681
      Chris Zankel authored
      The Xtensa port contained many header files that were never needed.  This
      rather lengthy patch removes all those files.  Unfortunately, there were
      many dependencies that needed to be updated, so this patch touches quite a
      few source files.
      Signed-off-by: default avatarChris Zankel <chris@zankel.net>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      173d6681
    • Chris Zankel's avatar
      [PATCH] xtensa: fix irq and misc fixes · fd43fe19
      Chris Zankel authored
      Update the architecture specific interrupt handling code for Xtensa to support
      the new API.  Use generic BUG macros in bug.h, and some minor fixes.
      Signed-off-by: default avatarChris Zankel <chris@zankel.net>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      fd43fe19
    • Hugh Dickins's avatar
      [PATCH] read_zero_pagealigned() locking fix · 5fcf7bb7
      Hugh Dickins authored
      Ramiro Voicu hits the BUG_ON(!pte_none(*pte)) in zeromap_pte_range: kernel
      bugzilla 7645.  Right: read_zero_pagealigned uses down_read of mmap_sem,
      but another thread's racing read of /dev/zero, or a normal fault, can
      easily set that pte again, in between zap_page_range and zeromap_page_range
      getting there.  It's been wrong ever since 2.4.3.
      
      The simple fix is to use down_write instead, but that would serialize reads
      of /dev/zero more than at present: perhaps some app would be badly
      affected.  So instead let zeromap_page_range return the error instead of
      BUG_ON, and read_zero_pagealigned break to the slower clear_user loop in
      that case - there's no need to optimize for it.
      
      Use -EEXIST for when a pte is found: BUG_ON in mmap_zero (the other user of
      zeromap_page_range), though it really isn't interesting there.  And since
      mmap_zero wants -EAGAIN for out-of-memory, the zeromaps better return that
      than -ENOMEM.
      Signed-off-by: default avatarHugh Dickins <hugh@veritas.com>
      Cc: Ramiro Voicu: <Ramiro.Voicu@cern.ch>
      Cc: <stable@kernel.org>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      5fcf7bb7
    • Roman Zippel's avatar
      [PATCH] kbuild: don't put temp files in source · 347a00fb
      Roman Zippel authored
      The as-instr/ld-option need to create temporary files, but create them in the
      output directory, when compiling external modules.  Reformat them a bit and
      use $(CC) instead of $(AS) as the former is used by kbuild to assemble files.
      Signed-off-by: default avatarRoman Zippel <zippel@linux-m68k.org>
      Cc: Andi Kleen <ak@suse.de>
      Cc: Jan Beulich <jbeulich@novell.com>
      Cc: Sam Ravnborg <sam@ravnborg.org>
      Cc: <jpdenheijer@gmail.com>
      Cc: Horst Schirmeier <horst@schirmeier.com>
      Cc: Daniel Drake <dsd@gentoo.org>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      347a00fb
    • Oleg Verych's avatar
      [PATCH] kbuild: fix-rR-is-now-default · 15964864
      Oleg Verych authored
      `make -d help | grep Makefile` shows patterns, where make tries to rebuild
      included and top makefiles.
      
      While `make -rR is now default' commit should fix this, actually, it was just
      a little janitorial.
      
      This fix is aimed to complete cancelling implicit rules.
      
      Cc: Sam Ravnborg <sam@ravnborg.org>
      Signed-off-by: default avatarOleg Verych <olecom@flower.upol.cz>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      15964864
    • Don Mullis's avatar
      [PATCH] Kconfig refactoring for better menu nesting · bf4735a4
      Don Mullis authored
      Refactor Kconfig content to maximize nesting of menus by menuconfig and
      xconfig.
      
      Tested by simultaneously running `make xconfig` with and without
      patch, and comparing displays.
      Signed-off-by: default avatarDon Mullis <dwm@meer.net>
      Signed-off-by: default avatarRandy Dunlap <rdunlap@xenotime.net>
      Cc: Sam Ravnborg <sam@ravnborg.org>
      Cc: Roman Zippel <zippel@linux-m68k.org>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      bf4735a4
    • Randy Dunlap's avatar
      [PATCH] ipc-procfs-sysctl mixups · d53ef07a
      Randy Dunlap authored
      When CONFIG_PROC_FS=n and CONFIG_PROC_SYSCTL=n but CONFIG_SYSVIPC=y, we get
      this build error:
      
      kernel/built-in.o:(.data+0xc38): undefined reference to `proc_ipc_doulongvec_minmax'
      kernel/built-in.o:(.data+0xc88): undefined reference to `proc_ipc_doulongvec_minmax'
      kernel/built-in.o:(.data+0xcd8): undefined reference to `proc_ipc_dointvec'
      kernel/built-in.o:(.data+0xd28): undefined reference to `proc_ipc_dointvec'
      kernel/built-in.o:(.data+0xd78): undefined reference to `proc_ipc_dointvec'
      kernel/built-in.o:(.data+0xdc8): undefined reference to `proc_ipc_dointvec'
      kernel/built-in.o:(.data+0xe18): undefined reference to `proc_ipc_dointvec'
      make: *** [vmlinux] Error 1
      Signed-off-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
      Acked-by: default avatarEric Biederman <ebiederm@xmission.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      d53ef07a
    • Randy Dunlap's avatar
      [PATCH] ucb1400_ts depends SND_AC97_BUS · 2d4ba4a3
      Randy Dunlap authored
      This driver is an AC97 codec according to its help text.  However, if SOUND is
      disabled, the "select SND_AC97_BUS" still inserts that into the .config file:
      
      #
      # Sound
      #
      # CONFIG_SOUND is not set
      CONFIG_SND_AC97_BUS=m
      
      Even if the config software followed dependency chains on selects, we should
      try to limit usage of "select" to library-type code that is needed (e.g., CRC
      functions) instead of bus-type support.
      Signed-off-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      2d4ba4a3
    • David Howells's avatar
      [PATCH] workstruct: fix ieee80211-softmac compile problem · db9a758c
      David Howells authored
      Fix ieee80211-softmac compile problem where it's using schedule_work() on a
      delayed_work struct.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Cc: "John W. Linville" <linville@tuxdriver.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      db9a758c
  2. 09 Dec, 2006 2 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 · af1713e0
      Linus Torvalds authored
      * 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6:
        [PATCH] x86-64: no paravirt for X86_VOYAGER or X86_VISWS
        [PATCH] i386: Fix io_apic.c warning
        [PATCH] i386: export smp_num_siblings for oprofile
        [PATCH] x86: Work around gcc 4.2 over aggressive optimizer
        [PATCH] x86: Fix boot hang due to nmi watchdog init code
        [PATCH] x86: Fix verify_quirk_intel_irqbalance()
        [PATCH] i386: Update defconfig
        [PATCH] x86-64: Update defconfig
      af1713e0
    • Randy Dunlap's avatar
      [PATCH] x86-64: no paravirt for X86_VOYAGER or X86_VISWS · f0f32fcc
      Randy Dunlap authored
      Since Voyager and Visual WS already define ARCH_SETUP,
      it looks like PARAVIRT shouldn't be offered for them.
      
      In file included from arch/i386/kernel/setup.c:63:
      include/asm-i386/mach-visws/setup_arch.h:8:1: warning: "ARCH_SETUP" redefin=
      ed
      In file included from include/asm/msr.h:5,
                       from include/asm/processor.h:17,
                       from include/asm/thread_info.h:16,
                       from include/linux/thread_info.h:21,
                       from include/linux/preempt.h:9,
                       from include/linux/spinlock.h:49,
                       from include/linux/capability.h:45,
                       from include/linux/sched.h:46,
                       from arch/i386/kernel/setup.c:26:
      include/asm/paravirt.h:163:1: warning: this is the location of the previous=
       definition
      In file included from arch/i386/kernel/setup.c:63:
      include/asm-i386/mach-visws/setup_arch.h:8:1: warning: "ARCH_SETUP" redefin=
      ed
      In file included from include/asm/msr.h:5,
                       from include/asm/processor.h:17,
                       from include/asm/thread_info.h:16,
                       from include/linux/thread_info.h:21,
                       from include/linux/preempt.h:9,
                       from include/linux/spinlock.h:49,
                       from include/linux/capability.h:45,
                       from include/linux/sched.h:46,
                       from arch/i386/kernel/setup.c:26:
      include/asm/paravirt.h:163:1: warning: this is the location of the previous=
       definition
      Signed-off-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
      f0f32fcc