Eric Lee / smarc-fsl-linux-kernel

26 Jul, 2011

1 commit

  • d3ec4844d   Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial ... Browse Code »

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits)
    fs: Merge split strings
    treewide: fix potentially dangerous trailing ';' in #defined values/expressions
    uwb: Fix misspelling of neighbourhood in comment
    net, netfilter: Remove redundant goto in ebt_ulog_packet
    trivial: don't touch files that are removed in the staging tree
    lib/vsprintf: replace link to Draft by final RFC number
    doc: Kconfig: `to be' -> `be'
    doc: Kconfig: Typo: square -> squared
    doc: Konfig: Documentation/power/{pm => apm-acpi}.txt
    drivers/net: static should be at beginning of declaration
    drivers/media: static should be at beginning of declaration
    drivers/i2c: static should be at beginning of declaration
    XTENSA: static should be at beginning of declaration
    SH: static should be at beginning of declaration
    MIPS: static should be at beginning of declaration
    ARM: static should be at beginning of declaration
    rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check
    Update my e-mail address
    PCIe ASPM: forcedly -> forcibly
    gma500: push through device driver tree
    ...

    Fix up trivial conflicts:
    - arch/arm/mach-ep93xx/dma-m2p.c (deleted)
    - drivers/gpio/gpio-ep93xx.c (renamed and context nearby)
    - drivers/net/r8169.c (just context changes)

    Linus Torvalds
     

22 Jul, 2011

1 commit

13 Jul, 2011

2 commits

  • a00b7745c   xfs: cleanup struct xfs_dir2_free ... Browse Code »

    Change the bests array to be a proper variable sized entry. This is done
    easily as no one relies on the size of the structure. Also change
    XFS_DIR2_MAX_FREE_BESTS to an inline function while we're at it.

    Signed-off-by: Christoph Hellwig
    Reviewed-by: Alex Elder
    Reviewed-by: Dave Chinner

    Christoph Hellwig
     
  • 579266407   xfs: reshuffle dir2 headers ... Browse Code »

    Replace the current mess of dir2 headers with just three that have a clear
    purpose:

    - xfs_dir2_format.h for all format definitions, including the inline helpers
    to access our variable size structures
    - xfs_dir2_priv.h for all prototypes that are internal to the dir2 code
    and not needed by anything outside of the directory code. For this
    purpose xfs_da_btree.c, and phase6.c in xfs_repair are considered part
    of the directory code.
    - xfs_dir2.h for the public interface to the directory code

    In addition to the reshuffle I have also update the comments to not only
    match the new file structure, but also to describe the directory format
    better.

    Signed-off-by: Christoph Hellwig
    Reviewed-by: Alex Elder
    Reviewed-by: Dave Chinner

    Christoph Hellwig
     

08 Jul, 2011

3 commits

07 Mar, 2011

1 commit

27 Jul, 2010

2 commits

  • 3400777ff   xfs: remove unneeded #include statements ... Browse Code »

    Signed-off-by: Christoph Hellwig
    Reviewed-by: Dave Chinner

    Christoph Hellwig
     
  • 288699fec   xfs: drop dmapi hooks ... Browse Code »

    Dmapi support was never merged upstream, but we still have a lot of hooks
    bloating XFS for it, all over the fast pathes of the filesystem.

    This patch drops over 700 lines of dmapi overhead. If we'll ever get HSM
    support in mainline at least the namespace events can be done much saner
    in the VFS instead of the individual filesystem, so it's not like this
    is much help for future work.

    Signed-off-by: Christoph Hellwig
    Reviewed-by: Dave Chinner

    Christoph Hellwig
     

16 Jan, 2010

1 commit

15 Dec, 2009

1 commit

  • 0b1b213fc   xfs: event tracing support ... Browse Code »

    Convert the old xfs tracing support that could only be used with the
    out of tree kdb and xfsidbg patches to use the generic event tracer.

    To use it make sure CONFIG_EVENT_TRACING is enabled and then enable
    all xfs trace channels by:

    echo 1 > /sys/kernel/debug/tracing/events/xfs/enable

    or alternatively enable single events by just doing the same in one
    event subdirectory, e.g.

    echo 1 > /sys/kernel/debug/tracing/events/xfs/xfs_ihold/enable

    or set more complex filters, etc. In Documentation/trace/events.txt
    all this is desctribed in more detail. To reads the events do a

    cat /sys/kernel/debug/tracing/trace

    Compared to the last posting this patch converts the tracing mostly to
    the one tracepoint per callsite model that other users of the new
    tracing facility also employ. This allows a very fine-grained control
    of the tracing, a cleaner output of the traces and also enables the
    perf tool to use each tracepoint as a virtual performance counter,
    allowing us to e.g. count how often certain workloads git various
    spots in XFS. Take a look at

    http://lwn.net/Articles/346470/

    for some examples.

    Also the btree tracing isn't included at all yet, as it will require
    additional core tracing features not in mainline yet, I plan to
    deliver it later.

    And the really nice thing about this patch is that it actually removes
    many lines of code while adding this nice functionality:

    fs/xfs/Makefile | 8
    fs/xfs/linux-2.6/xfs_acl.c | 1
    fs/xfs/linux-2.6/xfs_aops.c | 52 -
    fs/xfs/linux-2.6/xfs_aops.h | 2
    fs/xfs/linux-2.6/xfs_buf.c | 117 +--
    fs/xfs/linux-2.6/xfs_buf.h | 33
    fs/xfs/linux-2.6/xfs_fs_subr.c | 3
    fs/xfs/linux-2.6/xfs_ioctl.c | 1
    fs/xfs/linux-2.6/xfs_ioctl32.c | 1
    fs/xfs/linux-2.6/xfs_iops.c | 1
    fs/xfs/linux-2.6/xfs_linux.h | 1
    fs/xfs/linux-2.6/xfs_lrw.c | 87 --
    fs/xfs/linux-2.6/xfs_lrw.h | 45 -
    fs/xfs/linux-2.6/xfs_super.c | 104 ---
    fs/xfs/linux-2.6/xfs_super.h | 7
    fs/xfs/linux-2.6/xfs_sync.c | 1
    fs/xfs/linux-2.6/xfs_trace.c | 75 ++
    fs/xfs/linux-2.6/xfs_trace.h | 1369 +++++++++++++++++++++++++++++++++++++++++
    fs/xfs/linux-2.6/xfs_vnode.h | 4
    fs/xfs/quota/xfs_dquot.c | 110 ---
    fs/xfs/quota/xfs_dquot.h | 21
    fs/xfs/quota/xfs_qm.c | 40 -
    fs/xfs/quota/xfs_qm_syscalls.c | 4
    fs/xfs/support/ktrace.c | 323 ---------
    fs/xfs/support/ktrace.h | 85 --
    fs/xfs/xfs.h | 16
    fs/xfs/xfs_ag.h | 14
    fs/xfs/xfs_alloc.c | 230 +-----
    fs/xfs/xfs_alloc.h | 27
    fs/xfs/xfs_alloc_btree.c | 1
    fs/xfs/xfs_attr.c | 107 ---
    fs/xfs/xfs_attr.h | 10
    fs/xfs/xfs_attr_leaf.c | 14
    fs/xfs/xfs_attr_sf.h | 40 -
    fs/xfs/xfs_bmap.c | 507 +++------------
    fs/xfs/xfs_bmap.h | 49 -
    fs/xfs/xfs_bmap_btree.c | 6
    fs/xfs/xfs_btree.c | 5
    fs/xfs/xfs_btree_trace.h | 17
    fs/xfs/xfs_buf_item.c | 87 --
    fs/xfs/xfs_buf_item.h | 20
    fs/xfs/xfs_da_btree.c | 3
    fs/xfs/xfs_da_btree.h | 7
    fs/xfs/xfs_dfrag.c | 2
    fs/xfs/xfs_dir2.c | 8
    fs/xfs/xfs_dir2_block.c | 20
    fs/xfs/xfs_dir2_leaf.c | 21
    fs/xfs/xfs_dir2_node.c | 27
    fs/xfs/xfs_dir2_sf.c | 26
    fs/xfs/xfs_dir2_trace.c | 216 ------
    fs/xfs/xfs_dir2_trace.h | 72 --
    fs/xfs/xfs_filestream.c | 8
    fs/xfs/xfs_fsops.c | 2
    fs/xfs/xfs_iget.c | 111 ---
    fs/xfs/xfs_inode.c | 67 --
    fs/xfs/xfs_inode.h | 76 --
    fs/xfs/xfs_inode_item.c | 5
    fs/xfs/xfs_iomap.c | 85 --
    fs/xfs/xfs_iomap.h | 8
    fs/xfs/xfs_log.c | 181 +----
    fs/xfs/xfs_log_priv.h | 20
    fs/xfs/xfs_log_recover.c | 1
    fs/xfs/xfs_mount.c | 2
    fs/xfs/xfs_quota.h | 8
    fs/xfs/xfs_rename.c | 1
    fs/xfs/xfs_rtalloc.c | 1
    fs/xfs/xfs_rw.c | 3
    fs/xfs/xfs_trans.h | 47 +
    fs/xfs/xfs_trans_buf.c | 62 -
    fs/xfs/xfs_vnodeops.c | 8
    70 files changed, 2151 insertions(+), 2592 deletions(-)

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Alex Elder

    Christoph Hellwig
     

29 Mar, 2009

1 commit

28 Jul, 2008

5 commits

  • 90bb7ab07   [XFS] Fix returning case-preserved name with CI node form directories ... Browse Code »

    xfs_dir2_node_lookup() calls xfs_da_node_lookup_int() which iterates
    through leaf blocks containing the matching hash value for the name being
    looked up. Inside xfs_da_node_lookup_int(), it calls the
    xfs_dir2_leafn_lookup_for_entry() for each leaf block.
    xfs_dir2_leafn_lookup_for_entry() iterates through each matching
    hash/offset pair doing a name comparison to find the matching dirent.

    For CI mode, the state->extrablk retains the details of the block that has
    the CI match so xfs_dir2_node_lookup() can return the case-preserved name.

    The original implementation didn't retain the xfs_da_buf_t properly, so
    the lookup was returning a bogus name to be stored in the dentry.

    In the case of unlink, the bad name was passed and in debug mode, ASSERTed
    when it can't find the entry.

    SGI-PV: 983284

    SGI-Modid: xfs-linux-melb:xfs-kern:31337a

    Signed-off-by: Barry Naujok
    Signed-off-by: Christoph Hellwig
    Signed-off-by: Lachlan McIlroy

    Barry Naujok
     
  • 384f3ced0   [XFS] Return case-insensitive match for dentry cache ... Browse Code »

    This implements the code to store the actual filename found during a
    lookup in the dentry cache and to avoid multiple entries in the dcache
    pointing to the same inode.

    To avoid polluting the dcache, we implement a new directory inode
    operations for lookup. xfs_vn_ci_lookup() stores the correct case name in
    the dcache.

    The "actual name" is only allocated and returned for a case- insensitive
    match and not an actual match.

    Another unusual interaction with the dcache is not storing negative
    dentries like other filesystems doing a d_add(dentry, NULL) when an ENOENT
    is returned. During the VFS lookup, if a dentry returned has no inode,
    dput is called and ENOENT is returned. By not doing a d_add, this actually
    removes it completely from the dcache to be reused. create/rename have to
    be modified to support unhashed dentries being passed in.

    SGI-PV: 981521
    SGI-Modid: xfs-linux-melb:xfs-kern:31208a

    Signed-off-by: Barry Naujok
    Signed-off-by: Christoph Hellwig

    Barry Naujok
     
  • 6a178100a   [XFS] Add op_flags field and helpers to xfs_da_args ... Browse Code »

    The end of the xfs_da_args structure has 4 unsigned char fields for
    true/false information on directory and attr operations using the
    xfs_da_args structure.

    The following converts these 4 into a op_flags field that uses the first 4
    bits for these fields and allows expansion for future operation
    information (eg. case-insensitive lookup request).

    SGI-PV: 981520
    SGI-Modid: xfs-linux-melb:xfs-kern:31206a

    Signed-off-by: Barry Naujok
    Signed-off-by: Christoph Hellwig

    Barry Naujok
     
  • 5163f95a0   [XFS] Name operation vector for hash and compare ... Browse Code »

    Adds two pieces of functionality for the basis of case-insensitive support
    in XFS:

    1. A comparison result enumerated type: xfs_dacmp. It represents an

    exact match, case-insensitive match or no match at all. This patch

    only implements different and exact results.

    2. xfs_nameops vector for specifying how to perform the hash generation

    of filenames and comparision methods. In this patch the hash vector

    points to the existing xfs_da_hashname function and the comparison

    method does a length compare, and if the same, does a memcmp and

    return the xfs_dacmp result.

    All filename functions that use the hash (create, lookup remove, rename,
    etc) now use the xfs_nameops.hashname function and all directory lookup
    functions also use the xfs_nameops.compname function.

    The lookup functions also handle case-insensitive results even though the
    default comparison function cannot return that. And important aspect of
    the lookup functions is that an exact match always has precedence over a
    case-insensitive. So while a case-insensitive match is found, we have to
    keep looking just in case there is an exact match. In the meantime, the
    info for the first case-insensitive match is retained if no exact match is
    found.

    SGI-PV: 981519
    SGI-Modid: xfs-linux-melb:xfs-kern:31205a

    Signed-off-by: Barry Naujok
    Signed-off-by: Christoph Hellwig

    Barry Naujok
     
  • f9f6dce01   [XFS] Split xfs_dir2_leafn_lookup_int into its two pieces of functionality ... Browse Code »

    SGI-PV: 976035
    SGI-Modid: xfs-linux-melb:xfs-kern:30834a

    Signed-off-by: Barry Naujok
    Signed-off-by: Christoph Hellwig
    Signed-off-by: Lachlan McIlroy

    Barry Naujok
     

14 Feb, 2008

1 commit

15 Oct, 2007

1 commit

  • da353b0d6   [XFS] Radix tree based inode caching ... Browse Code »

    One of the perpetual scaling problems XFS has is indexing it's incore
    inodes. We currently uses hashes and the default hash sizes chosen can
    only ever be a tradeoff between memory consumption and the maximum
    realistic size of the cache.

    As a result, anyone who has millions of inodes cached on a filesystem
    needs to tunes the size of the cache via the ihashsize mount option to
    allow decent scalability with inode cache operations.

    A further problem is the separate inode cluster hash, whose size is based
    on the ihashsize but is smaller, and so under certain conditions (sparse
    cluster cache population) this can become a limitation long before the
    inode hash is causing issues.

    The following patchset removes the inode hash and cluster hash and
    replaces them with radix trees to avoid the scalability limitations of the
    hashes. It also reduces the size of the inodes by 3 pointers....

    SGI-PV: 969561
    SGI-Modid: xfs-linux-melb:xfs-kern:29481a

    Signed-off-by: David Chinner
    Signed-off-by: Christoph Hellwig
    Signed-off-by: Tim Shimmin

    David Chinner
     

14 Jul, 2007

1 commit

08 May, 2007

1 commit

20 Jun, 2006

1 commit

09 Jun, 2006

3 commits

29 Mar, 2006

1 commit

17 Mar, 2006

8 commits

02 Nov, 2005

2 commits

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