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

24 Sep, 2009

1 commit

  • 6d729e44a   fs: Make unload_nls() NULL pointer safe ... Browse Code »

    Most call sites of unload_nls() do:
    if (nls)
    unload_nls(nls);

    Check the pointer inside unload_nls() like we do in kfree() and
    simplify the call sites.

    Signed-off-by: Thomas Gleixner
    Cc: Steve French
    Cc: OGAWA Hirofumi
    Cc: Roman Zippel
    Cc: Dave Kleikamp
    Cc: Petr Vandrovec
    Cc: Anton Altaparmakov
    Signed-off-by: Al Viro

    Thomas Gleixner
     

22 Sep, 2009

1 commit

17 Jun, 2009

2 commits

16 Jun, 2009

1 commit

  • 74675a585   NLS: update handling of Unicode ... Browse Code »

    This patch (as1239) updates the kernel's treatment of Unicode. The
    character-set conversion routines are well behind the current state of
    the Unicode specification: They don't recognize the existence of code
    points beyond plane 0 or of surrogate pairs in the UTF-16 encoding.

    The old wchar_t 16-bit type is retained because it's still used in
    lots of places. This shouldn't cause any new problems; if a
    conversion now results in an invalid 16-bit code then before it must
    have yielded an undefined code.

    Difficult-to-read names like "utf_mbstowcs" are replaced with more
    transparent names like "utf8s_to_utf16s" and the ordering of the
    parameters is rationalized (buffer lengths come immediate after the
    pointers they refer to, and the inputs precede the outputs).
    Fortunately the low-level conversion routines are used in only a few
    places; the interfaces to the higher-level uni2char and char2uni
    methods have been left unchanged.

    Signed-off-by: Alan Stern
    Acked-by: Clemens Ladisch
    Signed-off-by: Greg Kroah-Hartman

    Alan Stern
     

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
     

09 Apr, 2009

1 commit

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

  • c325962b6   kmemtrace, befs: fix slab.h dependency problem ... Browse Code »

    Impact: cleanup

    fs/befs/debug.c depends on slab.h without including it. Upcoming
    changes for kmemtrace would break the build:

    CC fs/befs/debug.o
    fs/befs/debug.c: In function ‘befs_error’:
    fs/befs/debug.c:31: error: implicit declaration of function ‘kmalloc’
    fs/befs/debug.c:31: warning: initialization makes pointer from integer without a cast
    fs/befs/debug.c:42: error: implicit declaration of function ‘kfree’
    fs/befs/debug.c: In function ‘befs_warning’:
    fs/befs/debug.c:49: warning: initialization makes pointer from integer without a cast
    fs/befs/debug.c: In function ‘befs_debug’:
    fs/befs/debug.c:73: warning: assignment makes pointer from integer without a cast
    make[1]: *** [fs/befs/debug.o] Error 1
    make: *** [fs/befs/] Error 2

    So add the dependency explicitly.

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

    Pekka Enberg
     
  • 8587246a0   fs/befs: return f_fsid for statfs(2) ... Browse Code »

    Make befs return f_fsid info for statfs(2).

    Signed-off-by: Coly Li
    Cc: Sergey S. Kostyliov
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Coly Li
     

22 Jan, 2009

1 commit

01 Jan, 2009

1 commit

17 Oct, 2008

1 commit

  • 152b95a1e   befs: annotate fs32 on tests for superblock endianness ... Browse Code »

    Does compile-time byteswapping rather than runtime.

    Noticed by sparse:
    fs/befs/super.c:29:6: warning: cast to restricted __le32
    fs/befs/super.c:29:6: warning: cast from restricted fs32
    fs/befs/super.c:31:11: warning: cast to restricted __be32
    fs/befs/super.c:31:11: warning: cast from restricted fs32
    fs/befs/super.c:31:11: warning: cast to restricted __be32
    fs/befs/super.c:31:11: warning: cast from restricted fs32
    fs/befs/super.c:31:11: warning: cast to restricted __be32
    fs/befs/super.c:31:11: warning: cast from restricted fs32
    fs/befs/super.c:31:11: warning: cast to restricted __be32
    fs/befs/super.c:31:11: warning: cast from restricted fs32
    fs/befs/super.c:31:11: warning: cast to restricted __be32
    fs/befs/super.c:31:11: warning: cast from restricted fs32
    fs/befs/super.c:31:11: warning: cast to restricted __be32
    fs/befs/super.c:31:11: warning: cast from restricted fs32
    fs/befs/linuxvfs.c:811:7: warning: cast to restricted __le32
    fs/befs/linuxvfs.c:811:7: warning: cast from restricted fs32
    fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
    fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
    fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
    fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
    fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
    fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
    fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
    fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
    fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
    fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
    fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
    fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32

    Signed-off-by: Harvey Harrison
    Cc: "Sergey S. Kostyliov"
    Cc: Al Viro
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Harvey Harrison
     

14 Oct, 2008

1 commit

  • a447c0932   vfs: Use const for kernel parser table ... Browse Code »

    This is a much better version of a previous patch to make the parser
    tables constant. Rather than changing the typedef, we put the "const" in
    all the various places where its required, allowing the __initconst
    exception for nfsroot which was the cause of the previous trouble.

    This was posted for review some time ago and I believe its been in -mm
    since then.

    Signed-off-by: Steven Whitehouse
    Cc: Alexander Viro
    Signed-off-by: Linus Torvalds

    Steven Whitehouse
     

25 Aug, 2008

1 commit

27 Jul, 2008

1 commit

  • 51cc50685   SL*B: drop kmem cache argument from constructor ... Browse Code »

    Kmem cache passed to constructor is only needed for constructors that are
    themselves multiplexeres. Nobody uses this "feature", nor does anybody uses
    passed kmem cache in non-trivial way, so pass only pointer to object.

    Non-trivial places are:
    arch/powerpc/mm/init_64.c
    arch/powerpc/mm/hugetlbpage.c

    This is flag day, yes.

    Signed-off-by: Alexey Dobriyan
    Acked-by: Pekka Enberg
    Acked-by: Christoph Lameter
    Cc: Jon Tollefson
    Cc: Nick Piggin
    Cc: Matt Mackall
    [akpm@linux-foundation.org: fix arch/powerpc/mm/hugetlbpage.c]
    [akpm@linux-foundation.org: fix mm/slab.c]
    [akpm@linux-foundation.org: fix ubifs]
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     

17 May, 2008

1 commit

29 Apr, 2008

1 commit

  • 63e3453e5   befs: fix sparse warning in linuxvfs.c ... Browse Code »

    Use link as the variable name to avoid shadowing the arg.

    fs/befs/linuxvfs.c:492:8: warning: symbol 'p' shadows an earlier one
    fs/befs/linuxvfs.c:488:77: originally declared here

    Signed-off-by: Harvey Harrison
    Cc: "Sergey S. Kostyliov"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Harvey Harrison
     

09 Feb, 2008

1 commit

  • 552c3c6c5   mount options: fix befs ... Browse Code »

    Add a .show_options super operation to befs.

    Use generic_show_options() and save the complete option string in
    befs_fill_super().

    Signed-off-by: Miklos Szeredi
    Cc: Sergey S. Kostyliov
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Miklos Szeredi
     

08 Feb, 2008

1 commit

  • 96eb54194   iget: stop BEFS from using iget() and read_inode() ... Browse Code »

    Stop the BEFS filesystem from using iget() and read_inode(). Replace
    befs_read_inode() with befs_iget(), and call that instead of iget().
    befs_iget() then uses iget_locked() directly and returns a proper error code
    instead of an inode in the event of an error.

    befs_fill_super() returns any error incurred when getting the root inode
    instead of EINVAL.

    Signed-off-by: David Howells
    Acked-by: Will Dyson
    Acked-by: Christoph Hellwig
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Howells
     

03 Feb, 2008

2 commits

17 Oct, 2007

1 commit

  • 4ba9b9d0b   Slab API: remove useless ctor parameter and reorder parameters ... Browse Code »

    Slab constructors currently have a flags parameter that is never used. And
    the order of the arguments is opposite to other slab functions. The object
    pointer is placed before the kmem_cache pointer.

    Convert

    ctor(void *object, struct kmem_cache *s, unsigned long flags)

    to

    ctor(struct kmem_cache *s, void *object)

    throughout the kernel

    [akpm@linux-foundation.org: coupla fixes]
    Signed-off-by: Christoph Lameter
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Lameter
     

20 Jul, 2007

1 commit

  • 20c2df83d   mm: Remove slab destructors from kmem_cache_create(). ... Browse Code »

    Slab destructors were no longer supported after Christoph's
    c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been
    BUGs for both slab and slub, and slob never supported them
    either.

    This rips out support for the dtor pointer from kmem_cache_create()
    completely and fixes up every single callsite in the kernel (there were
    about 224, not including the slab allocator definitions themselves,
    or the documentation references).

    Signed-off-by: Paul Mundt

    Paul Mundt
     

17 May, 2007

1 commit

  • a35afb830   Remove SLAB_CTOR_CONSTRUCTOR ... Browse Code »

    SLAB_CTOR_CONSTRUCTOR is always specified. No point in checking it.

    Signed-off-by: Christoph Lameter
    Cc: David Howells
    Cc: Jens Axboe
    Cc: Steven French
    Cc: Michael Halcrow
    Cc: OGAWA Hirofumi
    Cc: Miklos Szeredi
    Cc: Steven Whitehouse
    Cc: Roman Zippel
    Cc: David Woodhouse
    Cc: Dave Kleikamp
    Cc: Trond Myklebust
    Cc: "J. Bruce Fields"
    Cc: Anton Altaparmakov
    Cc: Mark Fasheh
    Cc: Paul Mackerras
    Cc: Christoph Hellwig
    Cc: Jan Kara
    Cc: David Chinner
    Cc: "David S. Miller"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Lameter
     

08 May, 2007

1 commit

  • 50953fe9e   slab allocators: Remove SLAB_DEBUG_INITIAL flag ... Browse Code »

    I have never seen a use of SLAB_DEBUG_INITIAL. It is only supported by
    SLAB.

    I think its purpose was to have a callback after an object has been freed
    to verify that the state is the constructor state again? The callback is
    performed before each freeing of an object.

    I would think that it is much easier to check the object state manually
    before the free. That also places the check near the code object
    manipulation of the object.

    Also the SLAB_DEBUG_INITIAL callback is only performed if the kernel was
    compiled with SLAB debugging on. If there would be code in a constructor
    handling SLAB_DEBUG_INITIAL then it would have to be conditional on
    SLAB_DEBUG otherwise it would just be dead code. But there is no such code
    in the kernel. I think SLUB_DEBUG_INITIAL is too problematic to make real
    use of, difficult to understand and there are easier ways to accomplish the
    same effect (i.e. add debug code before kfree).

    There is a related flag SLAB_CTOR_VERIFY that is frequently checked to be
    clear in fs inode caches. Remove the pointless checks (they would even be
    pointless without removeal of SLAB_DEBUG_INITIAL) from the fs constructors.

    This is the last slab flag that SLUB did not support. Remove the check for
    unimplemented flags from SLUB.

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

    Christoph Lameter
     

13 Feb, 2007

1 commit

  • 754661f14   [PATCH] mark struct inode_operations const 1 ... Browse Code »

    Many struct inode_operations in the kernel can be "const". Marking them const
    moves these to the .rodata section, which avoids false sharing with potential
    dirty data. In addition it'll catch accidental writes at compile time to
    these shared resources.

    Signed-off-by: Arjan van de Ven
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arjan van de Ven
     

14 Dec, 2006

1 commit

  • 5cbded585   [PATCH] getting rid of all casts of k[cmz]alloc() calls ... Browse Code »

    Run this:

    #!/bin/sh
    for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
    echo "De-casting $f..."
    perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
    done

    And then go through and reinstate those cases where code is casting pointers
    to non-pointers.

    And then drop a few hunks which conflicted with outstanding work.

    Cc: Russell King , Ian Molton
    Cc: Mikael Starvik
    Cc: Yoshinori Sato
    Cc: Roman Zippel
    Cc: Geert Uytterhoeven
    Cc: Ralf Baechle
    Cc: Paul Mackerras
    Cc: Kyle McMartin
    Cc: Benjamin Herrenschmidt
    Cc: Martin Schwidefsky
    Cc: "David S. Miller"
    Cc: Jeff Dike
    Cc: Greg KH
    Cc: Jens Axboe
    Cc: Paul Fulghum
    Cc: Alan Cox
    Cc: Karsten Keil
    Cc: Mauro Carvalho Chehab
    Cc: Jeff Garzik
    Cc: James Bottomley
    Cc: Ian Kent
    Cc: Steven French
    Cc: David Woodhouse
    Cc: Neil Brown
    Cc: Jaroslav Kysela
    Cc: Takashi Iwai
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Robert P. J. Day
     

09 Dec, 2006

1 commit

08 Dec, 2006

2 commits

  • 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
     
  • e94b17660   [PATCH] slab: remove SLAB_KERNEL ... Browse Code »

    SLAB_KERNEL is an alias of GFP_KERNEL.

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

    Christoph Lameter
     

11 Oct, 2006

5 commits

04 Oct, 2006

1 commit

27 Sep, 2006

2 commits

  • ba52de123   [PATCH] inode-diet: Eliminate i_blksize from the inode structure ... Browse Code »

    This eliminates the i_blksize field from struct inode. Filesystems that want
    to provide a per-inode st_blksize can do so by providing their own getattr
    routine instead of using the generic_fillattr() function.

    Note that some filesystems were providing pretty much random (and incorrect)
    values for i_blksize.

    [bunk@stusta.de: cleanup]
    [akpm@osdl.org: generic_fillattr() fix]
    Signed-off-by: "Theodore Ts'o"
    Signed-off-by: Adrian Bunk
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Theodore Ts'o
     
  • 1a1d92c10   [PATCH] Really ignore kmem_cache_destroy return value ... Browse Code »

    * Rougly half of callers already do it by not checking return value
    * Code in drivers/acpi/osl.c does the following to be sure:

    (void)kmem_cache_destroy(cache);

    * Those who check it printk something, however, slab_error already printed
    the name of failed cache.
    * XFS BUGs on failed kmem_cache_destroy which is not the decision
    low-level filesystem driver should make. Converted to ignore.

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

    Alexey Dobriyan
     

06 Aug, 2006

1 commit

  • 94f563c42   [PATCH] Fix BeFS slab corruption ... Browse Code »

    In bugzilla #6941, Jens Kilian reported:

    "The function befs_utf2nls (in fs/befs/linuxvfs.c) writes a 0 byte past the
    end of a block of memory allocated via kmalloc(), leading to memory
    corruption. This happens only for filenames which are pure ASCII and a
    multiple of 4 bytes in length. [...]

    Without DEBUG_SLAB, this leads to further corruption and hard lockups; I
    believe this is the bug which has made kernels later than 2.6.8 unusable
    for me. (This must be due to changes in memory management, the bug has
    been in the BeFS driver since the time it was introduced (AFAICT).)

    Steps to reproduce:
    Create a directory (in BeOS, naturally :-) with files named, e.g.,
    "1", "22", "333", "4444", ... Mount it in Linux and do an "ls" or "find""

    This patch implements the suggested fix. Credits to Jens Kilian for
    debugging the problem and finding the right fix.

    Signed-off-by: Diego Calleja
    Cc: Jens Kilian
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Diego Calleja