Eric Lee / smarc-fsl-linux-kernel

30 Jan, 2007

1 commit

  • c0d4d573f   [PATCH] Fix SG_IO timeout jiffy conversion ... Browse Code »

    Commit 85e04e371b5a321b5df2bc3f8e0099a64fb087d7 cleaned up the timeout
    conversion, but did it exactly the wrong way. We get msecs from user
    space, and should convert them into jiffies. Not the other way around.

    Here is a fix with the overflow check sg.c has added in. This fixes DVD
    burnign with Nero.

    Signed-off-by: Mike Christie
    [ "you'll be wanting a comma there" - Andrew ]
    Cc: Andrew Morton
    Signed-off-by: Linus Torvalds

    Mike Christie
     

24 Jan, 2007

1 commit

  • 95543179f   [PATCH] elevator: move clearing of unplug flag earlier ... Browse Code »

    A flag was recently added to the elevator code to avoid
    performing an unplug when reuests are being re-queued.
    The goal of this flag was to avoid a deep recursion that
    can occur when re-queueing requests after a SCSI device/host
    reset. See http://lkml.org/lkml/2006/5/17/254

    However, that fix added the flag near the bottom of a case
    statement, where an earlier break (in an if statement) could
    transport one out of the case, without setting the flag.
    This patch sets the flag earlier in the case statement.

    I re-discovered the deep recursion recently during testing;
    I was told that it was a known problem, and the fix to it was
    in the kernel I was testing. Indeed it was ... but it didn't
    fix the bug. With the patch below, I no longer see the bug.

    Signed-off by: Linas Vepstas
    Signed-off-by: Jens Axboe
    Cc: Chris Wright
    Signed-off-by: Linus Torvalds

    Linas Vepstas
     

03 Jan, 2007

1 commit

  • ec8acb690   [PATCH] cfq-iosched: merging problem ... Browse Code »

    Two issues:

    - The final return 1 should be a return 0, otherwise comparing cfqq is
    a noop.

    - bio_sync() only checks the sync flag, while rq_is_sync() checks both
    for READ and sync. The latter is what we want. Expand the bio check
    to include reads, and relax the restriction to allow merging of async
    io into sync requests.

    In the future we want to clean up the SYNC logic, right now it means
    both sync request (such as READ and O_DIRECT WRITE) and unplug-on-issue.
    Leave that for later.

    Signed-off-by: Jens Axboe
    Signed-off-by: Linus Torvalds

    Jens Axboe
     

23 Dec, 2006

2 commits

22 Dec, 2006

1 commit

  • bb4067e34   [PATCH] elevator: fixup typo in merge logic ... Browse Code »

    The recent io scheduler allow_merge commit left the block layer with
    no merging, oops. This patch fixes that up.

    That means the CFQ change needs to be verified again, it might not fix
    the original bug now. But that's a seperate thing, I'll double check
    that tomorrow.

    Signed-off-by: Jens Axboe
    Signed-off-by: Linus Torvalds

    Jens Axboe
     

20 Dec, 2006

1 commit

  • da7752650   [PATCH] cfq-iosched: don't allow sync merges across queues ... Browse Code »

    Currently we allow any merge, even if the io originates from different
    processes. This can cause really bad starvation and unfairness, if those
    ios happen to be synchronous (reads or direct writes).

    So add a allow_merge hook to the io scheduler ops, so an io scheduler can
    help decide whether a bio/process combination may be merged with an
    existing request.

    Signed-off-by: Jens Axboe

    Jens Axboe
     

19 Dec, 2006

5 commits

13 Dec, 2006

2 commits

12 Dec, 2006

3 commits

  • 335302618   [PATCH] remove unnecessary blk_queue_bounce in SG_IO ... Browse Code »

    When I converted the original patch, I left unnecessary blk_queue_bounce in
    SG_IO.

    Signed-off-by: FUJITA Tomonori
    Signed-off-by: Mike Christie
    Signed-off-by: Jens Axboe

    FUJITA Tomonori
     
  • 77d172ce2   [PATCH] fix SG_IO bio leak ... Browse Code »

    This patch fixes bio leaks in SG_IO. rq->bio can be changed after io
    completion, so we need to reset rq->bio before calling blk_rq_unmap_user()

    http://marc.theaimsgroup.com/?l=linux-kernel&m=116570666807983&w=2

    Signed-off-by: FUJITA Tomonori
    Signed-off-by: Jens Axboe

    FUJITA Tomonori
     
  • 2b02a1792   [PATCH] remove blk_queue_activity_fn ... Browse Code »

    While working on bidi support at struct request level
    I have found that blk_queue_activity_fn is actually never used.
    The only user is in ide-probe.c with this code:

    /* enable led activity for disk drives only */
    if (drive->media == ide_disk && hwif->led_act)
    blk_queue_activity_fn(q, hwif->led_act, drive);

    And led_act is never initialized anywhere.
    (Looking back at older kernels it was used in the PPC arch, but was removed around 2.6.18)
    Unless it is all for future use off course.
    (this patch is against linux-2.6-block.git as off 2006/12/4)

    Signed-off-by: Boaz Harrosh
    Signed-off-by: Jens Axboe

    Boaz Harrosh
     

11 Dec, 2006

1 commit

  • faccbd4b2   [PATCH] io-accounting: read accounting ... Browse Code »

    Wire up read accounting for block devices, within submit_bio().

    Cc: Jay Lan
    Cc: Shailabh Nagar
    Cc: Balbir Singh
    Cc: Chris Sturtivant
    Cc: Tony Ernst
    Cc: Guillaume Thouvenin
    Cc: David Wright
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew Morton
     

09 Dec, 2006

3 commits

  • c17bb4951   [PATCH] fault-injection capability for disk IO ... Browse Code »

    This patch provides fault-injection capability for disk IO.

    Boot option:

    fail_make_request=,,,

    -- specifies the interval of failures.

    -- specifies how often it should fail in percent.

    -- specifies the size of free space where disk IO can be issued
    safely in bytes.

    -- specifies how many times failures may happen at most.

    Debugfs:

    /debug/fail_make_request/interval
    /debug/fail_make_request/probability
    /debug/fail_make_request/specifies
    /debug/fail_make_request/times

    Example:

    fail_make_request=10,100,0,-1
    echo 1 > /sys/blocks/hda/hda1/make-it-fail

    generic_make_request() on /dev/hda1 fails once per 10 times.

    Cc: Jens Axboe
    Signed-off-by: Akinobu Mita
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Akinobu Mita
     
  • c5a20b6c2   [PATCH] struct path: convert block ... Browse Code »

    Signed-off-by: Josef Sipek
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Josef Sipek
     
  • 2e7b651df   [PATCH] remove the old bd_mutex lockdep annotation ... Browse Code »

    Remove the old complex and crufty bd_mutex annotation.

    Signed-off-by: Peter Zijlstra
    Cc: Neil Brown
    Cc: Ingo Molnar
    Cc: Arjan van de Ven
    Cc: Jason Baron
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Peter Zijlstra
     

08 Dec, 2006

3 commits

  • 023160678   [PATCH] hotplug CPU: clean up hotcpu_notifier() use ... Browse Code »

    There was lots of #ifdef noise in the kernel due to hotcpu_notifier(fn,
    prio) not correctly marking 'fn' as used in the !HOTPLUG_CPU case, and thus
    generating compiler warnings of unused symbols, hence forcing people to add
    #ifdefs.

    the compiler can skip truly unused functions just fine:

    text data bss dec hex filename
    1624412 728710 3674856 6027978 5bfaca vmlinux.before
    1624412 728710 3674856 6027978 5bfaca vmlinux.after

    [akpm@osdl.org: topology.c fix]
    Signed-off-by: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Ingo Molnar
     
  • e18b890bb   [PATCH] slab: remove kmem_cache_t ... Browse Code »

    Replace all uses of kmem_cache_t with struct kmem_cache.

    The patch was generated using the following script:

    #!/bin/sh
    #
    # Replace one string by another in all the kernel sources.
    #

    set -e

    for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
    quilt add $file
    sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
    mv /tmp/$$ $file
    quilt refresh
    done

    The script was run like this

    sh replace kmem_cache_t "struct kmem_cache"

    Signed-off-by: Christoph Lameter
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Lameter
     
  • a12058687   [PATCH] Allow NULL pointers in percpu_free ... Browse Code »

    The patch (as824b) makes percpu_free() ignore NULL arguments, as one would
    expect for a deallocation routine. (Note that free_percpu is #defined as
    percpu_free in include/linux/percpu.h.) A few callers are updated to remove
    now-unneeded tests for NULL. A few other callers already seem to assume
    that passing a NULL pointer to percpu_free() is okay!

    The patch also removes an unnecessary NULL check in percpu_depopulate().

    Signed-off-by: Alan Stern
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alan Stern
     

06 Dec, 2006

3 commits

  • 4796b71fb   Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 ... Browse Code »

    Conflicts:

    drivers/pcmcia/ds.c

    Fix up merge failures with Linus's head and fix new compile failures.

    Signed-Off-By: David Howells

    David Howells
     
  • ec0bf39a4   Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 ... Browse Code »

    * master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (73 commits)
    [SCSI] aic79xx: Add ASC-29320LPE ids to driver
    [SCSI] stex: version update
    [SCSI] stex: change wait loop code
    [SCSI] stex: add new device type support
    [SCSI] stex: update device id info
    [SCSI] stex: adjust default queue length
    [SCSI] stex: add value check in hard reset routine
    [SCSI] stex: fix controller_info command handling
    [SCSI] stex: fix biosparam calculation
    [SCSI] megaraid: fix MMIO casts
    [SCSI] tgt: fix undefined flush_dcache_page() problem
    [SCSI] libsas: better error handling in sas_expander.c
    [SCSI] lpfc 8.1.11 : Change version number to 8.1.11
    [SCSI] lpfc 8.1.11 : Misc Fixes
    [SCSI] lpfc 8.1.11 : Add soft_wwnn sysfs attribute, rename soft_wwn_enable
    [SCSI] lpfc 8.1.11 : Removed decoding of PCI Subsystem Id
    [SCSI] lpfc 8.1.11 : Add MSI (Message Signalled Interrupts) support
    [SCSI] lpfc 8.1.11 : Adjust LOG_FCP logging
    [SCSI] lpfc 8.1.11 : Fix Memory leaks
    [SCSI] lpfc 8.1.11 : Fix lpfc_multi_ring_support
    ...

    Linus Torvalds
     
  • 9db737244   Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 ... Browse Code »

    Conflicts:

    drivers/ata/libata-scsi.c
    include/linux/libata.h

    Futher merge of Linus's head and compilation fixups.

    Signed-Off-By: David Howells

    David Howells
     

05 Dec, 2006

2 commits

  • 4c1ac1b49   Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 ... Browse Code »

    Conflicts:

    drivers/infiniband/core/iwcm.c
    drivers/net/chelsio/cxgb2.c
    drivers/net/wireless/bcm43xx/bcm43xx_main.c
    drivers/net/wireless/prism54/islpci_eth.c
    drivers/usb/core/hub.h
    drivers/usb/input/hid-core.c
    net/core/netpoll.c

    Fix up merge failures with Linus's head and fix new compilation failures.

    Signed-Off-By: David Howells

    David Howells
     
  • e62438630   [PATCH] Centralise definitions of sector_t and blkcnt_t ... Browse Code »

    CONFIG_LBD and CONFIG_LSF are spread into asm/types.h for no particularly
    good reason.

    Centralising the definition in linux/types.h means that arch maintainers
    don't need to bother adding it, as well as fixing the problem with
    x86-64 users being asked to make a decision that has absolutely no
    effect.

    The H8/300 porters seem particularly confused since I'm not aware of any
    microcontrollers that need to support 2TB filesystems.

    Signed-off-by: Matthew Wilcox
    Signed-off-by: Linus Torvalds

    Matthew Wilcox
     

04 Dec, 2006

2 commits

01 Dec, 2006

3 commits

  • bb37b94c6   [BLOCK] Cleanup unused variable passing ... Browse Code »

    - ->init_queue() does not need the elevator passed in
    - ->put_request() is a hot path and need not have the queue passed in
    - cfq_update_io_seektime() does not need cfqd passed in

    Signed-off-by: Jens Axboe

    Jens Axboe
     
  • 0e75f9063   [PATCH] block: support larger block pc requests ... Browse Code »

    This patch modifies blk_rq_map/unmap_user() and the cdrom and scsi_ioctl.c
    users so that it supports requests larger than bio by chaining them together.

    Signed-off-by: Mike Christie
    Signed-off-by: Jens Axboe

    Mike Christie
     
  • be1c63411   [PATCH] blktrace: add timestamp message ... Browse Code »

    This adds a new timestamp message to blktrace, giving the timeofday when
    we starting tracing. This helps user space correlate block trace events
    with eg an application strace.

    This requires a (compatible) update to blkparse. The changed blkparse
    is still able to process traces generated by older kernels, and older
    versions of blkparse should silently ignore the new records (because
    they have a pid of 0).

    Signed-off-by: Olaf Kirch
    Signed-off-by: Jens Axboe

    Olaf Kirch
     

23 Nov, 2006

1 commit

22 Nov, 2006

1 commit

  • 65f27f384   WorkStruct: Pass the work_struct pointer instead of context data ... Browse Code »

    Pass the work_struct pointer to the work function rather than context data.
    The work function can use container_of() to work out the data.

    For the cases where the container of the work_struct may go away the moment the
    pending bit is cleared, it is made possible to defer the release of the
    structure by deferring the clearing of the pending bit.

    To make this work, an extra flag is introduced into the management side of the
    work_struct. This governs auto-release of the structure upon execution.

    Ordinarily, the work queue executor would release the work_struct for further
    scheduling or deallocation by clearing the pending bit prior to jumping to the
    work function. This means that, unless the driver makes some guarantee itself
    that the work_struct won't go away, the work function may not access anything
    else in the work_struct or its container lest they be deallocated.. This is a
    problem if the auxiliary data is taken away (as done by the last patch).

    However, if the pending bit is *not* cleared before jumping to the work
    function, then the work function *may* access the work_struct and its container
    with no problems. But then the work function must itself release the
    work_struct by calling work_release().

    In most cases, automatic release is fine, so this is the default. Special
    initiators exist for the non-auto-release case (ending in _NAR).

    Signed-Off-By: David Howells

    David Howells
     

17 Nov, 2006

1 commit

  • 097b8457d   [PATCH] scsi: clear garbage after CDBs on SG_IO ... Browse Code »

    ATAPI devices transfer fixed number of bytes for CDBs (12 or 16). Some
    ATAPI devices choke when shorter CDB is used and the left bytes contain
    garbage. Block SG_IO cleared left bytes but SCSI SG_IO didn't. This patch
    makes SCSI SG_IO clear it and simplify CDB clearing in block SG_IO.

    Signed-off-by: Tejun Heo
    Cc: Mathieu Fluhr
    Cc: James Bottomley
    Cc: Douglas Gilbert
    Acked-by: Jens Axboe
    Cc:
    Acked-by: Jeff Garzik
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Tejun Heo
     

16 Nov, 2006

1 commit

14 Nov, 2006

1 commit

  • 616e8a091   [PATCH] Fix bad data direction in SG_IO ... Browse Code »

    Contrary to what the name misleads you to believe, SG_DXFER_TO_FROM_DEV
    is really just a normal read seen from the device side.

    This patch fixes http://lkml.org/lkml/2006/10/13/100

    Signed-off-by: Jens Axboe
    Signed-off-by: Linus Torvalds

    Jens Axboe
     

04 Nov, 2006

1 commit