Doug / smarc-fsl-linux-kernel

15 Apr, 2006

1 commit

  • 4508a7a73   [PATCH] sysfs: Allow sysfs attribute files to be pollable ... Browse Code »

    It works like this:
    Open the file
    Read all the contents.
    Call poll requesting POLLERR or POLLPRI (so select/exceptfds works)
    When poll returns,
    close the file and go to top of loop.
    or lseek to start of file and go back to the 'read'.

    Events are signaled by an object manager calling
    sysfs_notify(kobj, dir, attr);

    If the dir is non-NULL, it is used to find a subdirectory which
    contains the attribute (presumably created by sysfs_create_group).

    This has a cost of one int per attribute, one wait_queuehead per kobject,
    one int per open file.

    The name "sysfs_notify" may be confused with the inotify
    functionality. Maybe it would be nice to support inotify for sysfs
    attributes as well?

    This patch also uses sysfs_notify to allow /sys/block/md*/md/sync_action
    to be pollable

    Signed-off-by: Neil Brown
    Signed-off-by: Greg Kroah-Hartman

    NeilBrown
     

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
     

21 Mar, 2006

1 commit

24 Jun, 2005

1 commit

  • 5f45f1a78   [PATCH] remove duplicate get_dentry functions in various places ... Browse Code »

    Various filesystem drivers have grown a get_dentry() function that's a
    duplicate of lookup_one_len, except that it doesn't take a maximum length
    argument and doesn't check for \0 or / in the passed in filename.

    Switch all these places to use lookup_one_len.

    Signed-off-by: Christoph Hellwig
    Cc: Greg KH
    Cc: Paul Jackson
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Hellwig
     

21 Jun, 2005

2 commits

  • 8215534ce   [PATCH] sysfs-iattr: set inode attributes ... Browse Code »

    o Following patch sets the attributes for newly allocated inodes for sysfs
    objects. If the object has non-default attributes, inode attributes are
    set as saved in sysfs_dirent->s_iattr, pointer to struct iattr.

    Signed-off-by: Maneesh Soni
    Signed-off-by: Greg Kroah-Hartman

    Maneesh Soni
     
  • 988d186de   [PATCH] sysfs-iattr: add sysfs_setattr ... Browse Code »

    o This adds ->i_op->setattr VFS method for sysfs inodes. The changed
    attribues are saved in the persistent sysfs_dirent structure as a pointer
    to struct iattr. The struct iattr is allocated only for those sysfs_dirent's
    for which default attributes are getting changed. Thanks to Jon Smirl for
    this suggestion.

    Signed-off-by: Maneesh Soni
    Signed-off-by: Greg Kroah-Hartman

    Maneesh Soni
     

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