Eric Lee / smarc-fsl-linux-kernel

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
     

30 Apr, 2008

1 commit

29 Apr, 2008

1 commit

09 Feb, 2008

1 commit

17 Oct, 2007

2 commits

  • 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
     
  • b4585729f   fs: adfs convert to new aops ... Browse Code »

    Acked-by: Russell King
    Signed-off-by: Nick Piggin
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Nick Piggin
     

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
     

10 Jul, 2007

1 commit

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

2 commits

  • ee9b6d61a   [PATCH] Mark struct super_operations const ... Browse Code »

    This patch is inspired by Arjan's "Patch series to mark struct
    file_operations and struct inode_operations const".

    Compile tested with gcc & sparse.

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

    Josef 'Jeff' Sipek
     
  • 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
     

06 Jan, 2007

1 commit

  • 3223ea8cc   [PATCH] adfs: fix filename handling ... Browse Code »

    Fix filenames on adfs discs being terminated at the first character greater
    than 128 (adfs filenames are Latin 1). I saw this problem when using a
    loopback adfs image on a 2.6.17-rc5 x86_64 machine, and the patch fixed it
    there.

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

    James Bursa
     

09 Dec, 2006

1 commit

08 Dec, 2006

3 commits

  • 4a6e617a4   [PATCH] fs/*: trivial vsnprintf() conversion ... Browse Code »

    It would very lame to get buffer overflow via one of the following.

    Signed-off-by: Alexey Dobriyan
    Cc: Dave Kleikamp
    Cc: Mark Fasheh
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     
  • 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
     

01 Oct, 2006

1 commit

  • 543ade1fc   [PATCH] Streamline generic_file_* interfaces and filemap cleanups ... Browse Code »

    This patch cleans up generic_file_*_read/write() interfaces. Christoph
    Hellwig gave me the idea for this clean ups.

    In a nutshell, all filesystems should set .aio_read/.aio_write methods and use
    do_sync_read/ do_sync_write() as their .read/.write methods. This allows us
    to cleanup all variants of generic_file_* routines.

    Final available interfaces:

    generic_file_aio_read() - read handler
    generic_file_aio_write() - write handler
    generic_file_aio_write_nolock() - no lock write handler

    __generic_file_aio_write_nolock() - internal worker routine

    Signed-off-by: Badari Pulavarty
    Signed-off-by: Christoph Hellwig
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Badari Pulavarty
     

27 Sep, 2006

3 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
     
  • f8314dc60   [PATCH] fs: Conversions from kmalloc+memset to k(z|c)alloc ... Browse Code »

    Conversions from kmalloc+memset to kzalloc.

    Signed-off-by: Panagiotis Issaris
    Jffs2-bit-acked-by: David Woodhouse
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Panagiotis Issaris
     

15 Aug, 2006

1 commit

01 Jul, 2006

1 commit

29 Jun, 2006

1 commit

23 Jun, 2006

2 commits

  • 726c33422   [PATCH] VFS: Permit filesystem to perform statfs with a known root dentry ... Browse Code »

    Give the statfs superblock operation a dentry pointer rather than a superblock
    pointer.

    This complements the get_sb() patch. That reduced the significance of
    sb->s_root, allowing NFS to place a fake root there. However, NFS does
    require a dentry to use as a target for the statfs operation. This permits
    the root in the vfsmount to be used instead.

    linux/mount.h has been added where necessary to make allyesconfig build
    successfully.

    Interest has also been expressed for use with the FUSE and XFS filesystems.

    Signed-off-by: David Howells
    Acked-by: Al Viro
    Cc: Nathan Scott
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Howells
     
  • 454e2398b   [PATCH] VFS: Permit filesystem to override root dentry on mount ... Browse Code »

    Extend the get_sb() filesystem operation to take an extra argument that
    permits the VFS to pass in the target vfsmount that defines the mountpoint.

    The filesystem is then required to manually set the superblock and root dentry
    pointers. For most filesystems, this should be done with simple_set_mnt()
    which will set the superblock pointer and then set the root dentry to the
    superblock's s_root (as per the old default behaviour).

    The get_sb() op now returns an integer as there's now no need to return the
    superblock pointer.

    This patch permits a superblock to be implicitly shared amongst several mount
    points, such as can be done with NFS to avoid potential inode aliasing. In
    such a case, simple_set_mnt() would not be called, and instead the mnt_root
    and mnt_sb would be set directly.

    The patch also makes the following changes:

    (*) the get_sb_*() convenience functions in the core kernel now take a vfsmount
    pointer argument and return an integer, so most filesystems have to change
    very little.

    (*) If one of the convenience function is not used, then get_sb() should
    normally call simple_set_mnt() to instantiate the vfsmount. This will
    always return 0, and so can be tail-called from get_sb().

    (*) generic_shutdown_super() now calls shrink_dcache_sb() to clean up the
    dcache upon superblock destruction rather than shrink_dcache_anon().

    This is required because the superblock may now have multiple trees that
    aren't actually bound to s_root, but that still need to be cleaned up. The
    currently called functions assume that the whole tree is rooted at s_root,
    and that anonymous dentries are not the roots of trees which results in
    dentries being left unculled.

    However, with the way NFS superblock sharing are currently set to be
    implemented, these assumptions are violated: the root of the filesystem is
    simply a dummy dentry and inode (the real inode for '/' may well be
    inaccessible), and all the vfsmounts are rooted on anonymous[*] dentries
    with child trees.

    [*] Anonymous until discovered from another tree.

    (*) The documentation has been adjusted, including the additional bit of
    changing ext2_* into foo_* in the documentation.

    [akpm@osdl.org: convert ipath_fs, do other stuff]
    Signed-off-by: David Howells
    Acked-by: Al Viro
    Cc: Nathan Scott
    Cc: Roland Dreier
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Howells
     

29 Mar, 2006

1 commit

  • 4b6f5d20b   [PATCH] Make most file operations structs in fs/ const ... Browse Code »

    This is a conversion to make the various file_operations structs in fs/
    const. Basically a regexp job, with a few manual fixups

    The goal is both to increase correctness (harder to accidentally write to
    shared datastructures) and reducing the false sharing of cachelines with
    things that get dirty in .data (while .rodata is nicely read only and thus
    cache clean)

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

    Arjan van de Ven
     

24 Mar, 2006

2 commits

  • fffb60f93   [PATCH] cpuset memory spread: slab cache format ... Browse Code »

    Rewrap the overly long source code lines resulting from the previous
    patch's addition of the slab cache flag SLAB_MEM_SPREAD. This patch
    contains only formatting changes, and no function change.

    Signed-off-by: Paul Jackson
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Paul Jackson
     
  • 4b6a9316f   [PATCH] cpuset memory spread: slab cache filesystems ... Browse Code »

    Mark file system inode and similar slab caches subject to SLAB_MEM_SPREAD
    memory spreading.

    If a slab cache is marked SLAB_MEM_SPREAD, then anytime that a task that's
    in a cpuset with the 'memory_spread_slab' option enabled goes to allocate
    from such a slab cache, the allocations are spread evenly over all the
    memory nodes (task->mems_allowed) allowed to that task, instead of favoring
    allocation on the node local to the current cpu.

    The following inode and similar caches are marked SLAB_MEM_SPREAD:

    file cache
    ==== =====
    fs/adfs/super.c adfs_inode_cache
    fs/affs/super.c affs_inode_cache
    fs/befs/linuxvfs.c befs_inode_cache
    fs/bfs/inode.c bfs_inode_cache
    fs/block_dev.c bdev_cache
    fs/cifs/cifsfs.c cifs_inode_cache
    fs/coda/inode.c coda_inode_cache
    fs/dquot.c dquot
    fs/efs/super.c efs_inode_cache
    fs/ext2/super.c ext2_inode_cache
    fs/ext2/xattr.c (fs/mbcache.c) ext2_xattr
    fs/ext3/super.c ext3_inode_cache
    fs/ext3/xattr.c (fs/mbcache.c) ext3_xattr
    fs/fat/cache.c fat_cache
    fs/fat/inode.c fat_inode_cache
    fs/freevxfs/vxfs_super.c vxfs_inode
    fs/hpfs/super.c hpfs_inode_cache
    fs/isofs/inode.c isofs_inode_cache
    fs/jffs/inode-v23.c jffs_fm
    fs/jffs2/super.c jffs2_i
    fs/jfs/super.c jfs_ip
    fs/minix/inode.c minix_inode_cache
    fs/ncpfs/inode.c ncp_inode_cache
    fs/nfs/direct.c nfs_direct_cache
    fs/nfs/inode.c nfs_inode_cache
    fs/ntfs/super.c ntfs_big_inode_cache_name
    fs/ntfs/super.c ntfs_inode_cache
    fs/ocfs2/dlm/dlmfs.c dlmfs_inode_cache
    fs/ocfs2/super.c ocfs2_inode_cache
    fs/proc/inode.c proc_inode_cache
    fs/qnx4/inode.c qnx4_inode_cache
    fs/reiserfs/super.c reiser_inode_cache
    fs/romfs/inode.c romfs_inode_cache
    fs/smbfs/inode.c smb_inode_cache
    fs/sysv/inode.c sysv_inode_cache
    fs/udf/super.c udf_inode_cache
    fs/ufs/super.c ufs_inode_cache
    net/socket.c sock_inode_cache
    net/sunrpc/rpc_pipe.c rpc_inode_cache

    The choice of which slab caches to so mark was quite simple. I marked
    those already marked SLAB_RECLAIM_ACCOUNT, except for fs/xfs, dentry_cache,
    inode_cache, and buffer_head, which were marked in a previous patch. Even
    though SLAB_RECLAIM_ACCOUNT is for a different purpose, it marks the same
    potentially large file system i/o related slab caches as we need for memory
    spreading.

    Given that the rule now becomes "wherever you would have used a
    SLAB_RECLAIM_ACCOUNT slab cache flag before (usually the inode cache), use
    the SLAB_MEM_SPREAD flag too", this should be easy enough to maintain.
    Future file system writers will just copy one of the existing file system
    slab cache setups and tend to get it right without thinking.

    Signed-off-by: Paul Jackson
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Paul Jackson
     

23 Mar, 2006

1 commit

09 Nov, 2005

1 commit

  • 733482e44   [PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason ... Browse Code »

    This patch removes almost all inclusions of linux/version.h. The 3
    #defines are unused in most of the touched files.

    A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is
    unfortunatly in linux/version.h.

    There are also lots of #ifdef for long obsolete kernels, this was not
    touched. In a few places, the linux/version.h include was move to where
    the LINUX_VERSION_CODE was used.

    quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'`

    search pattern:
    /UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).h

    Signed-off-by: Olaf Hering
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Olaf Hering
     

21 Aug, 2005

1 commit

17 Apr, 2005

1 commit

  • 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