01 Nov, 2011

1 commit


30 Mar, 2010

1 commit

  • …it slab.h inclusion from percpu.h

    percpu.h is included by sched.h and module.h and thus ends up being
    included when building most .c files. percpu.h includes slab.h which
    in turn includes gfp.h making everything defined by the two files
    universally available and complicating inclusion dependencies.

    percpu.h -> slab.h dependency is about to be removed. Prepare for
    this change by updating users of gfp and slab facilities include those
    headers directly instead of assuming availability. As this conversion
    needs to touch large number of source files, the following script is
    used as the basis of conversion.

    http://userweb.kernel.org/~tj/misc/slabh-sweep.py

    The script does the followings.

    * Scan files for gfp and slab usages and update includes such that
    only the necessary includes are there. ie. if only gfp is used,
    gfp.h, if slab is used, slab.h.

    * When the script inserts a new include, it looks at the include
    blocks and try to put the new include such that its order conforms
    to its surrounding. It's put in the include block which contains
    core kernel includes, in the same order that the rest are ordered -
    alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
    doesn't seem to be any matching order.

    * If the script can't find a place to put a new include (mostly
    because the file doesn't have fitting include block), it prints out
    an error message indicating which .h file needs to be added to the
    file.

    The conversion was done in the following steps.

    1. The initial automatic conversion of all .c files updated slightly
    over 4000 files, deleting around 700 includes and adding ~480 gfp.h
    and ~3000 slab.h inclusions. The script emitted errors for ~400
    files.

    2. Each error was manually checked. Some didn't need the inclusion,
    some needed manual addition while adding it to implementation .h or
    embedding .c file was more appropriate for others. This step added
    inclusions to around 150 files.

    3. The script was run again and the output was compared to the edits
    from #2 to make sure no file was left behind.

    4. Several build tests were done and a couple of problems were fixed.
    e.g. lib/decompress_*.c used malloc/free() wrappers around slab
    APIs requiring slab.h to be added manually.

    5. The script was run on all .h files but without automatically
    editing them as sprinkling gfp.h and slab.h inclusions around .h
    files could easily lead to inclusion dependency hell. Most gfp.h
    inclusion directives were ignored as stuff from gfp.h was usually
    wildly available and often used in preprocessor macros. Each
    slab.h inclusion directive was examined and added manually as
    necessary.

    6. percpu.h was updated not to include slab.h.

    7. Build test were done on the following configurations and failures
    were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
    distributed build env didn't work with gcov compiles) and a few
    more options had to be turned off depending on archs to make things
    build (like ipr on powerpc/64 which failed due to missing writeq).

    * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
    * powerpc and powerpc64 SMP allmodconfig
    * sparc and sparc64 SMP allmodconfig
    * ia64 SMP allmodconfig
    * s390 SMP allmodconfig
    * alpha SMP allmodconfig
    * um on x86_64 SMP allmodconfig

    8. percpu.h modifications were reverted so that it could be applied as
    a separate patch and serve as bisection point.

    Given the fact that I had only a couple of failures from tests on step
    6, I'm fairly confident about the coverage of this conversion patch.
    If there is a breakage, it's likely to be something in one of the arch
    headers which should be easily discoverable easily on most builds of
    the specific arch.

    Signed-off-by: Tejun Heo <tj@kernel.org>
    Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

    Tejun Heo
     

02 Sep, 2009

1 commit

  • ->read_proc, ->write_proc are going away, ->proc_fops should be used instead.

    The only tricky place is IDENTIFY handling: if for some reason
    taskfile_lib_get_identify() fails, buffer _is_ changed and at least
    first byte is overwritten. Emulate old behaviour with returning
    that first byte to userspace and reporting length=1 despite overall -E.

    Signed-off-by: Alexey Dobriyan
    Signed-off-by: David S. Miller

    Alexey Dobriyan
     

08 Apr, 2009

1 commit

  • Replace IDE_TFLAG_{IN|OUT}_* flags meaning to the taskfile register validity on
    input/output by the IDE_VALID_* flags and introduce 4 symmetric 8-bit register
    validity indicator subfields, 'valid.{input/output}.{tf|hob}', into the 'struct
    ide_cmd' instead of using the 'tf_flags' field for that purpose (this field can
    then be turned from 32-bit into 8-bit one).

    Signed-off-by: Sergei Shtylyov
    Signed-off-by: Bartlomiej Zolnierkiewicz

    Sergei Shtylyov
     

27 Mar, 2009

3 commits

  • * Add IDE_TFLAG_MULTI_PIO taskfile flag and set it for commands
    using multi-PIO protocol.

    * Use ata_tf_protocols enums instead of TASKFILE_* defines to
    denote command's protocol and then rename ->data_phase field
    to ->protocol.

    * Remove no longer needed includes.

    There should be no functional changes caused by this patch.

    Signed-off-by: Bartlomiej Zolnierkiewicz

    Bartlomiej Zolnierkiewicz
     
  • While at it:
    - rename struct ide_task_s to struct ide_cmd
    - remove stale comments from idedisk_{read_native,set}_max_address()
    - drop unused 'cmd' argument from ide_{cmd,task}_ioctl()
    - drop unused 'task' argument from tx4939ide_tf_load_fixup()
    - rename ide_complete_task() to ide_complete_cmd()
    - use consistent naming for struct ide_cmd variables

    There should be no functional changes caused by this patch.

    Signed-off-by: Bartlomiej Zolnierkiewicz

    Bartlomiej Zolnierkiewicz
     
  • Move smart_enable() call out from get_smart_data() to
    proc_idedisk_read_smart().

    There should be no functional changes caused by this patch.

    Signed-off-by: Bartlomiej Zolnierkiewicz

    Bartlomiej Zolnierkiewicz
     

05 Mar, 2009

1 commit

  • Fix this sparse warnings:
    drivers/ide/ide-disk_proc.c:130:11: warning: Using plain integer as NULL pointer
    drivers/ide/ide-floppy_proc.c:32:11: warning: Using plain integer as NULL pointer
    drivers/ide/ide-proc.c:234:11: warning: Using plain integer as NULL pointer
    drivers/ide/ide-tape.c:2141:11: warning: Using plain integer as NULL pointer

    Signed-off-by: Hannes Eder
    Cc: trivial@kernel.org
    Cc: kernel-janitors@vger.kernel.org
    Cc: Al Viro
    Signed-off-by: Bartlomiej Zolnierkiewicz

    Hannes Eder
     

18 Oct, 2008

1 commit

  • While at it:
    - IDEDISK_VERSION -> IDE_GD_VERSION
    - ide_cacheflush_p() -> ide_disk_flush()
    - init_idedisk_capacity() -> ide_disk_init_capacity()
    - idedisk_set_doorlock() -> ide_disk_set_doorlock()
    - idedisk_setup() -> ide_disk_setup()

    - ide_disk_capacity() -> ide_gd_capacity()
    - ide_disk_remove() -> ide_gd_remove()
    - ide_disk_probe() -> ide_gd_probe()
    - ide_disk_resume() -> ide_gd_resume()
    - ide_device_shutdown() -> ide_gd_shutdown()
    - idedisk_driver -> ide_gd_driver
    - idedisk_open() -> ide_gd_open()
    - idedisk_release() -> ide_gd_release()
    - idedisk_getgeo() -> ide_gd_getgeo()
    - idedisk_media_changed() -> ide_gd_media_changed()
    - idedisk_revalidate_disk() -> ide_gd_revalidate_disk()
    - idedisk_ops -> ide_gd_ops
    - idedisk_init() -> ide_gd_init()
    - idedisk_exit() -> ide_gd_exit()

    There should be no functional changes caused by this patch.

    Acked-by: Borislav Petkov
    Signed-off-by: Bartlomiej Zolnierkiewicz

    Bartlomiej Zolnierkiewicz
     

14 Oct, 2008

1 commit