Eric Lee / smarc-fsl-linux-kernel

28 Jul, 2006

1 commit

27 Jul, 2006

1 commit

16 Jul, 2006

1 commit

01 Jul, 2006

2 commits

29 Jun, 2006

1 commit

27 Jun, 2006

1 commit

  • d6e05edc5   spelling fixes ... Browse Code »

    acquired (aquired)
    contiguous (contigious)
    successful (succesful, succesfull)
    surprise (suprise)
    whether (weather)
    some other misspellings

    Signed-off-by: Andreas Mohr
    Signed-off-by: Adrian Bunk

    Andreas Mohr
     

23 Jun, 2006

3 commits

  • 090d2b185   [PATCH] read_mapping_page for address space ... Browse Code »

    Add read_mapping_page() which is used for callers that pass
    mapping->a_ops->readpage as the filler for read_cache_page. This removes
    some duplication from filesystem code.

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

    Pekka Enberg
     
  • 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
     

05 Jun, 2006

1 commit

  • 48ce8b056   JFS: commit_mutex cleanups ... Browse Code »

    I look at code, and see that
    1)locks wasn't release in the opposite order in which they were taken
    2)in jfs_rename we lock new_ip, and in "error path" we didn't unlock it
    3)I see strange expression: "! !"

    May be this worth to fix?

    Signed-off-by: Evgeniy Dushistov
    Signed-off-by: Dave Kleikamp

    Evgeniy Dushistov
     

24 May, 2006

1 commit

  • b964638ff   JFS: Fix multiple errors in metapage_releasepage ... Browse Code »

    It looks like metapage_releasepage was making in invalid assumption that
    the releasepage method would not be called on a dirty page. Instead of
    issuing a warning and releasing the metapage, it should return 0, indicating
    that the private data for the page cannot be released.

    I also realized that metapage_releasepage had the return code all wrong. If
    it is successful in releasing the private data, it should return 1, otherwise
    it needs to return 0.

    Lastly, there is no need to call wait_on_page_writeback, since
    try_to_release_page will not call us with a page in writback state.

    Signed-off-by: Dave Kleikamp

    Dave Kleikamp
     

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
     

27 Mar, 2006

5 commits

  • 1d8fa7a2b   [PATCH] remove ->get_blocks() support ... Browse Code »

    Now that get_block() can handle mapping multiple disk blocks, no need to have
    ->get_blocks(). This patch removes fs specific ->get_blocks() added for DIO
    and makes it users use get_block() instead.

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

    Badari Pulavarty
     
  • fa30bd058   [PATCH] map multiple blocks for mpage_readpages() ... Browse Code »

    This patch changes mpage_readpages() and get_block() to get the disk mapping
    information for multiple blocks at the same time.

    b_size represents the amount of disk mapping that needs to mapped. On the
    successful get_block() b_size indicates the amount of disk mapping thats
    actually mapped. Only the filesystems who care to use this information and
    provide multiple disk blocks at a time can choose to do so.

    No changes are needed for the filesystems who wants to ignore this.

    [akpm@osdl.org: cleanups]
    Signed-off-by: Badari Pulavarty
    Cc: Mingming Cao
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Badari Pulavarty
     
  • 93d2341c7   [PATCH] mempool: use mempool_create_slab_pool() ... Browse Code »

    Modify well over a dozen mempool users to call mempool_create_slab_pool()
    rather than calling mempool_create() with extra arguments, saving about 30
    lines of code and increasing readability.

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

    Matthew Dobson
     
  • 2ff28e22b   [PATCH] Make address_space_operations->invalidatepage return void ... Browse Code »

    The return value of this function is never used, so let's be honest and
    declare it as void.

    Some places where invalidatepage returned 0, I have inserted comments
    suggesting a BUG_ON.

    [akpm@osdl.org: JBD BUG fix]
    [akpm@osdl.org: rework for git-nfs]
    [akpm@osdl.org: don't go BUG in block_invalidate_page()]
    Signed-off-by: Neil Brown
    Acked-by: Dave Kleikamp
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    NeilBrown
     
  • 353ab6e97   [PATCH] sem2mutex: fs/ ... Browse Code »

    Semaphore to mutex conversion.

    The conversion was generated via scripts, and the result was validated
    automatically via a script as well.

    Signed-off-by: Ingo Molnar
    Cc: Eric Van Hensbergen
    Cc: Robert Love
    Cc: Thomas Gleixner
    Cc: David Woodhouse
    Cc: Neil Brown
    Cc: Trond Myklebust
    Cc: Dave Kleikamp
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Ingo Molnar
     

24 Mar, 2006

3 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
     
  • e8c96f8c2   [PATCH] fs: Use ARRAY_SIZE macro ... Browse Code »

    Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove a
    duplicate of ARRAY_SIZE. Some trailing whitespaces are also deleted.

    Signed-off-by: Tobias Klauser
    Cc: David Howells
    Cc: Dave Kleikamp
    Acked-by: Trond Myklebust
    Cc: Neil Brown
    Cc: Chris Mason
    Cc: Jeff Mahoney
    Cc: Christoph Hellwig
    Cc: Nathan Scott
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Tobias Klauser
     

10 Mar, 2006

1 commit

  • 69eb66d7d   JFS: add uid, gid, and umask mount options ... Browse Code »

    OS/2 doesn't initialize the uid, gid, or unix-style permission bits. The
    uid, gid, & umask mount options perform pretty much like those for the fat
    file system, overriding what is stored on disk. This is useful for users
    sharing the file system with OS/2.

    I implemented a little feature so that if you mask the execute bit, it
    will be re-enabled on directories when the appropriate read bit is unmasked.
    I didn't want to implement an fmask & dmask option.

    Signed-off-by: Dave Kleikamp

    Dave Kleikamp
     

09 Mar, 2006

1 commit

23 Feb, 2006

2 commits

16 Feb, 2006

1 commit

10 Feb, 2006

1 commit

09 Feb, 2006

1 commit

  • fa3241d24   JFS: ext2 inode attributes for jfs ... Browse Code »

    ext2 inode attributes with relevance for jfs:

    'a' EXT2_APPEND_FL -> append only
    'i' EXT2_IMMUTABLE_FL -> immutable file
    's' EXT2_SECRM_FL -> zero file
    'u' EXT2_UNRM_FL -> allow for unrm
    'A' EXT2_NOATIME_FL -> no access time
    'D' EXT2_DIRSYNC_FL -> dirsync
    'S' EXT2_SYNC_FL -> sync

    overview of jfs flags (partially for OS/2)

    value (OS/2) Linux ext2 attrs
    ------------------------------------------------
    0x00010000 IFJOURNAL -
    0x00020000 ISPARSE used
    0x00040000 INLINEEA used
    0x00080000 - - JFS_NOATIME_FL

    0x00100000 - - JFS_DIRSYNC_FL
    0x00200000 - - JFS_SYNC_FL
    0x00400000 - - JFS_SECRM_FL
    0x00800000 ISWAPFILE - JFS_UNRM_FL

    0x01000000 - - JFS_APPEND_FL
    0x02000000 IREADONLY - JFS_IMMUTABLE_FL
    0x04000000 IHIDDEN - -
    0x08000000 ISYSTEM - -

    0x10000000 - -
    0x20000000 IDIRECTORY used
    0x40000000 IARCHIVE -
    0x80000000 INEWNAME -

    the implementation is straight forward, except
    for the fact that the attributes have to be mapped
    to match with the ext2 ones to avoid a separate
    tool for manipulating them (this could be avoided
    when using a separate flag field in the on-disk
    representation, but the overhead is minimal)

    a special jfs_ioctl is added to allow for the new
    JFS_IOC_GETFLAGS and JFS_IOC_SETFLAGS calls.

    a helper function jfs_set_inode_flags() to transfer
    the flags from the on-disk version to the inode

    minor changes to allow flag inheritance on inode
    creation, as well as a cleanup of the on-disk
    flags (including the new ones)

    beforementioned helper to map between ext2 and jfs
    versions of the new flags ...

    the JFS_SECRM_FL and JFS_UNRM_FL are not done yet
    and I'm not 100% sure they are worth the effort,
    the rest seems to work out of the box ...

    Signed-off-by: Herbert Poetzl
    Signed-off-by: Dave Kleikamp

    Herbert Poetzl
     

25 Jan, 2006

2 commits

12 Jan, 2006

1 commit

11 Jan, 2006

2 commits

  • 44a0033f6   [PATCH] remove jfs xattr permission checks ... Browse Code »

    remove checks now in the VFS

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

    Christoph Hellwig
     
  • e0ad7b073   [PATCH] move xattr permission checks into the VFS ... Browse Code »

    )

    From: Christoph Hellwig

    The xattr code has rather complex permission checks because the rules are very
    different for different attribute namespaces. This patch moves as much as we
    can into the generic code. Currently all the major disk based filesystems
    duplicate these checks, while many minor filesystems or network filesystems
    lack some or all of them.

    To do this we need defines for the extended attribute names in common code, I
    moved them up from JFS which had the nicest defintions.

    Signed-off-by: Christoph Hellwig
    Acked-by: Dave Kleikamp
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    akpm@osdl.org
     

10 Jan, 2006

1 commit

09 Jan, 2006

1 commit

  • 28fd12982   [PATCH] Fix and add EXPORT_SYMBOL(filemap_write_and_wait) ... Browse Code »

    This patch add EXPORT_SYMBOL(filemap_write_and_wait) and use it.

    See mm/filemap.c:

    And changes the filemap_write_and_wait() and filemap_write_and_wait_range().

    Current filemap_write_and_wait() doesn't wait if filemap_fdatawrite()
    returns error. However, even if filemap_fdatawrite() returned an
    error, it may have submitted the partially data pages to the device.
    (e.g. in the case of -ENOSPC)

    Andrew Morton writes,

    If filemap_fdatawrite() returns an error, this might be due to some
    I/O problem: dead disk, unplugged cable, etc. Given the generally
    crappy quality of the kernel's handling of such exceptions, there's a
    good chance that the filemap_fdatawait() will get stuck in D state
    forever.

    So, this patch doesn't wait if filemap_fdatawrite() returns the -EIO.

    Trond, could you please review the nfs part? Especially I'm not sure,
    nfs must use the "filemap_fdatawrite(inode->i_mapping) == 0", or not.

    Acked-by: Trond Myklebust
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    OGAWA Hirofumi
     

29 Nov, 2005

1 commit

10 Nov, 2005

1 commit

  • dd8a306ac   JFS: Add back directory i_size calculations for legacy partitions ... Browse Code »

    Linux-formatted jfs partitions have a different idea about what i_size
    represents than partitions formatted on OS/2. The i_size calculation is
    now based on the size of the directory index. For legacy partitions, which
    have no directory index, the i_size is never being updated.

    This patch adds back the original i_size calculations for legacy partitions.

    Signed-off-by: Dave Kleikamp

    Dave Kleikamp
     

01 Nov, 2005

1 commit

30 Oct, 2005

1 commit

  • 4c21e2f24   [PATCH] mm: split page table lock ... Browse Code »

    Christoph Lameter demonstrated very poor scalability on the SGI 512-way, with
    a many-threaded application which concurrently initializes different parts of
    a large anonymous area.

    This patch corrects that, by using a separate spinlock per page table page, to
    guard the page table entries in that page, instead of using the mm's single
    page_table_lock. (But even then, page_table_lock is still used to guard page
    table allocation, and anon_vma allocation.)

    In this implementation, the spinlock is tucked inside the struct page of the
    page table page: with a BUILD_BUG_ON in case it overflows - which it would in
    the case of 32-bit PA-RISC with spinlock debugging enabled.

    Splitting the lock is not quite for free: another cacheline access. Ideally,
    I suppose we would use split ptlock only for multi-threaded processes on
    multi-cpu machines; but deciding that dynamically would have its own costs.
    So for now enable it by config, at some number of cpus - since the Kconfig
    language doesn't support inequalities, let preprocessor compare that with
    NR_CPUS. But I don't think it's worth being user-configurable: for good
    testing of both split and unsplit configs, split now at 4 cpus, and perhaps
    change that to 8 later.

    There is a benefit even for singly threaded processes: kswapd can be attacking
    one part of the mm while another part is busy faulting.

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

    Hugh Dickins
     

29 Oct, 2005

1 commit