Eric Lee / smarc-fsl-linux-kernel

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …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
     

03 Jan, 2009

1 commit

23 Jul, 2007

1 commit

  • e6f194d8f   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: (60 commits)
    [SCSI] libsas: make ATA functions selectable by a config option
    [SCSI] bsg: unexport sg v3 helper functions
    [SCSI] bsg: fix bsg_unregister_queue
    [SCSI] bsg: make class backlinks
    [SCSI] 3w-9xxx: add support for 9690SA
    [SCSI] bsg: fix bsg_register_queue error path
    [SCSI] ESP: Increase ESP_BUS_TIMEOUT to 275.
    [SCSI] libsas: fix scr_read/write users and update the libata documentation
    [SCSI] mpt fusion: update Kconfig help
    [SCSI] scsi_transport_sas: add destructor for bsg
    [SCSI] iscsi_tcp: buggered kmalloc()
    [SCSI] qla2xxx: Update version number to 8.02.00-k2.
    [SCSI] qla2xxx: Add ISP25XX support.
    [SCSI] qla2xxx: Use pci_try_set_mwi().
    [SCSI] qla2xxx: Use PCI-X/PCI-Express read control interfaces.
    [SCSI] qla2xxx: Re-factor isp_operations to static structures.
    [SCSI] qla2xxx: Validate mid-layer 'underflow' during check-condition handling.
    [SCSI] qla2xxx: Correct setting of 'current' and 'supported' speeds during FDMI registration.
    [SCSI] qla2xxx: Generalize iIDMA support.
    [SCSI] qla2xxx: Generalize FW-Interface-2 support.
    ...

    Linus Torvalds
     

20 Jul, 2007

1 commit

  • dd00cc486   some kmalloc/memset ->kzalloc (tree wide) ... Browse Code »

    Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).

    Here is a short excerpt of the semantic patch performing
    this transformation:

    @@
    type T2;
    expression x;
    identifier f,fld;
    expression E;
    expression E1,E2;
    expression e1,e2,e3,y;
    statement S;
    @@

    x =
    - kmalloc
    + kzalloc
    (E1,E2)
    ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
    - memset((T2)x,0,E1);

    @@
    expression E1,E2,E3;
    @@

    - kzalloc(E1 * E2,E3)
    + kcalloc(E1,E2,E3)

    [akpm@linux-foundation.org: get kcalloc args the right way around]
    Signed-off-by: Yoann Padioleau
    Cc: Richard Henderson
    Cc: Ivan Kokshaysky
    Acked-by: Russell King
    Cc: Bryan Wu
    Acked-by: Jiri Slaby
    Cc: Dave Airlie
    Acked-by: Roland Dreier
    Cc: Jiri Kosina
    Acked-by: Dmitry Torokhov
    Cc: Benjamin Herrenschmidt
    Acked-by: Mauro Carvalho Chehab
    Acked-by: Pierre Ossman
    Cc: Jeff Garzik
    Cc: "David S. Miller"
    Acked-by: Greg KH
    Cc: James Bottomley
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yoann Padioleau
     

19 Jul, 2007

1 commit

  • 3ac709c11   [SCSI] a4000t, zorro7xx, mvme16x, bvme6000,sim710: xxx_device_remove seems buggy ... Browse Code »

    Fix drivers misusing dev_to_shost

    Some drivers were using dev_to_shost to go from a struct device to the
    corresponding shost. Unfortunately, dev_to_shost only looks up the tree
    to find an shost (it's designed to go from a scsi_device or a
    scsi_target to the parent scsi_host), and these drivers were calling it
    with the parent of the scsi_host.

    I've fixed this by saving a pointer to the Scsi_Host in the drvdata,
    which matches what most scsi drivers do.

    Signed-off-by: Matthew Wilcox
    Cc: Geert Uytterhoeven
    Signed-off-by: James Bottomley

    Matthew Wilcox
     

14 Jan, 2007

1 commit

  • f67a9c159   [SCSI] 53c700: Allow setting burst length ... Browse Code »

    This is a patch, which allows not only disabling bursting but to specify
    different burst lenghts. This feature is needed to get the 53c700 driver
    working for the onboard SCSI controller of SNI RM machines, which only
    work reliably with a 4 word burst length.

    Signed-off-by: James Bottomley

    Thomas Bogendoerfer
     

27 Sep, 2006

1 commit

  • 07563c711   [PATCH] EISA bus MODALIAS attributes support ... Browse Code »

    Add modalias attribute support for the almost forgotten now EISA bus and
    (at least some) EISA-aware modules.

    The modalias entry looks like (for an 3c509 NIC):

    eisa:sTCM5093

    and the in-module alias like:

    eisa:sTCM5093*

    The patch moves struct eisa_device_id declaration from include/linux/eisa.h
    to include/linux/mod_devicetable.h (so that the former now #includes the
    latter), adds proper MODULE_DEVICE_TABLE(eisa, ...) statements for all
    drivers with EISA IDs I found (some drivers already have that DEVICE_TABLE
    declared), and adds recognision of __mod_eisa_device_table to
    scripts/mod/file2alias.c so that proper modules.alias will be generated.

    There's no support for /lib/modules/$kver/modules.eisamap, as it's not used
    by any existing tools, and because with in-kernel modalias mechanism those
    maps are obsolete anyway.

    The rationale for this patch is:

    a) to make EISA bus to act as other busses with modalias
    support, to unify driver loading

    b) to foget about EISA finally - with this patch, kernel
    (who still supports EISA) will be the only one who knows
    how to choose the necessary drivers for this bus ;)

    [akpm@osdl.org: fix the kbuild bit]
    Signed-off-by: Michael Tokarev
    Cc: Rusty Russell
    Cc: Randy Dunlap
    Acked-the-net-bits-by: Jeff Garzik
    Acked-the-tulip-bit-by: Valerie Henson
    Cc: James Bottomley
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Michael Tokarev
     

03 Jul, 2006

1 commit

01 Jul, 2006

1 commit

20 Apr, 2006

1 commit

12 Mar, 2006

1 commit

17 Apr, 2005

2 commits

  • 56fece200   [PATCH] finally fix 53c700 to use the generic iomem infrastructure ... Browse Code »

    This driver has had it's own different infrastructure for doing this for
    ages, but it's time it used the common one.

    Signed-off-by: James Bottomley

     
  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds