Eric Lee / smarc-fsl-linux-kernel

24 Jun, 2015

1 commit

  • db6172c41   fs: cleanup slight list_entry abuse ... Browse Code »

    list_entry is just a wrapper for container_of, but it is arguably
    wrong (and slightly confusing) to use it when the pointed-to struct
    member is not a struct list_head. Use container_of directly instead.

    Signed-off-by: Rasmus Villemoes
    Signed-off-by: Al Viro

    Rasmus Villemoes
     

22 Jan, 2013

1 commit

  • 99600051b   udf: add extent cache support in case of file reading ... Browse Code »
    1

    This patch implements extent caching in case of file reading.
    While reading a file, currently, UDF reads metadata serially
    which takes a lot of time depending on the number of extents present
    in the file. Caching last accessd extent improves metadata read time.
    Instead of reading file metadata from start, now we read from
    the cached extent.

    This patch considerably improves the time spent by CPU in kernel mode.
    For example, while reading a 10.9 GB file using dd:
    Time before applying patch:
    11677022208 bytes (10.9GB) copied, 1529.748921 seconds, 7.3MB/s
    real 25m 29.85s
    user 0m 12.41s
    sys 15m 34.75s

    Time after applying patch:
    11677022208 bytes (10.9GB) copied, 1469.338231 seconds, 7.6MB/s
    real 24m 29.44s
    user 0m 15.73s
    sys 3m 27.61s

    [JK: Fix bh refcounting issues, simplify initialization]

    Signed-off-by: Namjae Jeon
    Signed-off-by: Ashish Sangwan
    Signed-off-by: Bonggil Bak
    Signed-off-by: Jan Kara

    Namjae Jeon
     

01 Mar, 2012

1 commit

07 Jan, 2011

1 commit

  • 4d0fb621d   udf: Replace bkl with the UDF_I(inode)->i_data_sem for protect udf_inode_info struct ... Browse Code »

    Replace bkl with the UDF_I(inode)->i_data_sem rw semaphore in
    udf_release_file(), udf_symlink(), udf_symlink_filler(), udf_get_block(),
    udf_block_map(), and udf_setattr(). The rule now is that any operation
    on regular file's or symlink's extents (or generally allocation information
    including goal block) needs to hold i_data_sem.

    This work was supported by a hardware donation from the CE Linux Forum.

    Signed-off-by: Alessio Igor Bogani
    Signed-off-by: Jan Kara

    Alessio Igor Bogani
     

02 Apr, 2009

1 commit

17 Apr, 2008

2 commits

  • d652eefb7   udf: replace udf_*_offset macros with functions ... Browse Code »

    - translate udf_file_entry_alloc_offset macro into function
    - translate udf_ext0_offset macro into function
    - add comment about crypticly named fields in struct udf_inode_info

    Signed-off-by: Marcin Slusarz
    Signed-off-by: Jan Kara

    marcin.slusarz@gmail.com
     
  • 15aebd286   udf: move headers out include/linux/ ... Browse Code »

    There's really no reason to keep udf headers in include/linux as they're
    not used by anything but fs/udf/.

    This patch merges most of include/linux/udf_fs_i.h into fs/udf/udf_i.h,
    include/linux/udf_fs_sb.h into fs/udf/udf_sb.h and
    include/linux/udf_fs.h into fs/udf/udfdecl.h.

    The only thing remaining in include/linux/ is a stub of udf_fs_i.h
    defining the four user-visible udf ioctls. It's also moved from
    unifdef-y to headers-y because it can be included unconditionally now.

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Jan Kara

    Christoph Hellwig
     

09 Feb, 2008

1 commit

22 Jul, 2007

1 commit

20 Jul, 2007

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