Eric Lee / linux-smarc-t335x-v3.2

09 Aug, 2010

1 commit

06 Aug, 2010

2 commits

05 Aug, 2010

2 commits

01 Jun, 2010

3 commits

23 May, 2010

2 commits

18 May, 2010

6 commits

25 Apr, 2010

3 commits

23 Apr, 2010

1 commit

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
     

05 Mar, 2010

2 commits

21 Jan, 2010

4 commits

22 Sep, 2009

1 commit

13 Jul, 2009

1 commit

  • 405f55712   headers: smp_lock.h redux ... Browse Code »

    * Remove smp_lock.h from files which don't need it (including some headers!)
    * Add smp_lock.h to files which do need it
    * Make smp_lock.h include conditional in hardirq.h
    It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT

    This will make hardirq.h inclusion cheaper for every PREEMPT=n config
    (which includes allmodconfig/allyesconfig, BTW)

    Signed-off-by: Alexey Dobriyan
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     

12 Jun, 2009

1 commit

  • 6cfd01484   push BKL down into ->put_super ... Browse Code »

    Move BKL into ->put_super from the only caller. A couple of
    filesystems had trivial enough ->put_super (only kfree and NULLing of
    s_fs_info + stuff in there) to not get any locking: coda, cramfs, efs,
    hugetlbfs, omfs, qnx4, shmem, all others got the full treatment. Most
    of them probably don't need it, but I'd rather sort that out individually.
    Preferably after all the other BKL pushdowns in that area.

    [AV: original used to move lock_super() down as well; these changes are
    removed since we don't do lock_super() at all in generic_shutdown_super()
    now]
    [AV: fuse, btrfs and xfs are known to need no damn BKL, exempt]

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Al Viro

    Christoph Hellwig
     

13 May, 2009

3 commits

07 Apr, 2009

1 commit

  • 12fe32e4f   Merge branch 'kmemtrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/… ... Browse Code »

    …git/tip/linux-2.6-tip

    * 'kmemtrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
    kmemtrace: trace kfree() calls with NULL or zero-length objects
    kmemtrace: small cleanups
    kmemtrace: restore original tracing data binary format, improve ABI
    kmemtrace: kmemtrace_alloc() must fill type_id
    kmemtrace: use tracepoints
    kmemtrace, rcu: don't include unnecessary headers, allow kmemtrace w/ tracepoints
    kmemtrace, rcu: fix rcupreempt.c data structure dependencies
    kmemtrace, rcu: fix rcu_tree_trace.c data structure dependencies
    kmemtrace, rcu: fix linux/rcutree.h and linux/rcuclassic.h dependencies
    kmemtrace, mm: fix slab.h dependency problem in mm/failslab.c
    kmemtrace, kbuild: fix slab.h dependency problem in lib/decompress_unlzma.c
    kmemtrace, kbuild: fix slab.h dependency problem in lib/decompress_bunzip2.c
    kmemtrace, kbuild: fix slab.h dependency problem in lib/decompress_inflate.c
    kmemtrace, squashfs: fix slab.h dependency problem in squasfs
    kmemtrace, befs: fix slab.h dependency problem
    kmemtrace, security: fix linux/key.h header file dependencies
    kmemtrace, fs: fix linux/fdtable.h header file dependencies
    kmemtrace, fs: uninline simple_transaction_set()
    kmemtrace, fs, security: move alloc_secdata() and free_secdata() to linux/security.h

    Linus Torvalds
     

03 Apr, 2009

2 commits

  • 23516dc70   kmemtrace, squashfs: fix slab.h dependency problem in squasfs ... Browse Code »

    Impact: cleanup

    fs/squashfs/export.c depends on slab.h without including it:

    CC fs/squashfs/export.o
    fs/squashfs/export.c: In function ‘squashfs_read_inode_lookup_table’:
    fs/squashfs/export.c:133: error: implicit declaration of function ‘kmalloc’
    fs/squashfs/export.c:133: warning: assignment makes pointer from integer without a cast
    fs/squashfs/export.c:143: error: implicit declaration of function ‘kfree’
    make[1]: *** [fs/squashfs/export.o] Error 1
    make: *** [fs/squashfs/] Error 2

    It gets included implicitly currently - but this will not be the
    case with upcoming kmemtrace changes.

    Signed-off-by: Pekka Enberg
    Cc: Eduard - Gabriel Munteanu
    LKML-Reference:
    Signed-off-by: Ingo Molnar

    Pekka Enberg
     
  • 2fc7f562b   fs/squashfs: return f_fsid for statfs(2) ... Browse Code »

    Make squashfs return f_fsid info for statfs(2).

    Signed-off-by: Coly Li
    Cc: Phillip Lougher
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Coly Li
     

12 Mar, 2009

1 commit

  • 363911d02   Squashfs: Valid filesystems are flagged as bad by the corrupted fs patch ... Browse Code »

    The corrupted filesystem patch added a check against zlib trying to
    output too much data in the presence of data corruption. This check
    triggered if zlib_inflate asked to be called again (Z_OK) with
    avail_out == 0 and no more output buffers available. This check proves
    to be rather dumb, as it incorrectly catches the case where zlib has
    generated all the output, but there are still input bytes to be processed.

    This patch does a number of things. It removes the original check and
    replaces it with code to not move to the next output buffer if there
    are no more output buffers available, relying on zlib to error if it
    wants an extra output buffer in the case of data corruption. It
    also replaces the Z_NO_FLUSH flag with the more correct Z_SYNC_FLUSH
    flag, and makes the error messages more understandable to
    non-technical users.

    Signed-off-by: Phillip Lougher
    Reported-by: Stefan Lippers-Hollmann

    Phillip Lougher
     

05 Mar, 2009

2 commits

22 Jan, 2009

1 commit