Eric Lee / smarc-fsl-linux-kernel

24 Jan, 2008

1 commit

  • d4acd722b   [SCSI] sysfs: add filter function to groups ... Browse Code »

    This patch allows the various users of attribute_groups to selectively
    allow the appearance of group attributes. The primary consumer of
    this will be the transport classes in which we currently have
    elaborate attribute selection algorithms to do this same thing.

    Acked-by: Greg KH
    Signed-off-by: James Bottomley

    James Bottomley
     

13 Oct, 2007

2 commits

  • 90bc61359   sysfs: Remove first pass at shadow directory support ... Browse Code »

    While shadow directories appear to be a good idea, the current scheme
    of controlling their creation and destruction outside of sysfs appears
    to be a locking and maintenance nightmare in the face of sysfs
    directories dynamically coming and going. Which can now occur for
    directories containing network devices when CONFIG_SYSFS_DEPRECATED is
    not set.

    This patch removes everything from the initial shadow directory support
    that allowed the shadow directory creation to be controlled at a higher
    level. So except for a few bits of sysfs_rename_dir everything from
    commit b592fcfe7f06c15ec11774b5be7ce0de3aa86e73 is now gone.

    Signed-off-by: Eric W. Biederman
    Signed-off-by: Tejun Heo
    Signed-off-by: Greg Kroah-Hartman

    Eric W. Biederman
     
  • 869512ab5   sysfs: cleanup semaphore.h ... Browse Code »

    Cleanup semaphore.h

    Signed-off-by: Dave Young
    Signed-off-by: Greg Kroah-Hartman

    Dave Young
     

12 Jul, 2007

1 commit

  • 608e266a2   sysfs: make kobj point to sysfs_dirent instead of dentry ... Browse Code »

    As kobj sysfs dentries and inodes are gonna be made reclaimable,
    dentry can't be used as naming token for sysfs file/directory, replace
    kobj->dentry with kobj->sd. The only external interface change is
    shadow directory handling. All other changes are contained in kobj
    and sysfs.

    Signed-off-by: Tejun Heo
    Signed-off-by: Greg Kroah-Hartman

    Tejun Heo
     

28 Apr, 2007

1 commit

  • 057f6c019   security: prevent permission checking of file removal via sysfs_remove_group() ... Browse Code »

    Prevent permission checking from being performed when the kernel wants to
    unconditionally remove a sysfs group, by introducing an kernel-only variant
    of lookup_one_len(), lookup_one_len_kern().

    Additionally, as sysfs_remove_group() does not check the return value of
    the lookup before using it, a BUG_ON has been added to pinpoint the cause
    of any problems potentially caused by this (and as a form of annotation).

    Signed-off-by: James Morris
    Cc: Nagendra Singh Tomar
    Cc: Tejun Heo
    Cc: Stephen Smalley
    Cc: Eric Paris
    Signed-off-by: Andrew Morton
    Signed-off-by: Greg Kroah-Hartman

    James Morris
     

08 Feb, 2007

2 commits

  • b592fcfe7   sysfs: Shadow directory support ... Browse Code »

    The problem. When implementing a network namespace I need to be able
    to have multiple network devices with the same name. Currently this
    is a problem for /sys/class/net/*.

    What I want is a separate /sys/class/net directory in sysfs for each
    network namespace, and I want to name each of them /sys/class/net.

    I looked and the VFS actually allows that. All that is needed is
    for /sys/class/net to implement a follow link method to redirect
    lookups to the real directory you want.

    Implementing a follow link method that is sensitive to the current
    network namespace turns out to be 3 lines of code so it looks like a
    clean approach. Modifying sysfs so it doesn't get in my was is a bit
    trickier.

    I am calling the concept of multiple directories all at the same path
    in the filesystem shadow directories. With the directory entry really
    at that location the shadow master.

    The following patch modifies sysfs so it can handle a directory
    structure slightly different from the kobject tree so I can implement
    the shadow directories for handling /sys/class/net/.

    Signed-off-by: Eric W. Biederman
    Cc: Maneesh Soni
    Signed-off-by: Greg Kroah-Hartman

    Eric W. Biederman
     
  • 94bebf4d1   Driver core: fix race in sysfs between sysfs_remove_file() and read()/write() ... Browse Code »

    This patch prevents a race between IO and removing a file from sysfs.
    It introduces a list of sysfs_buffers associated with a file at the inode.
    Upon removal of a file the list is walked and the buffers marked orphaned.
    IO to orphaned buffers fails with -ENODEV. The driver can safely free
    associated data structures or be unloaded.

    Signed-off-by: Oliver Neukum
    Acked-by: Maneesh Soni
    Signed-off-by: Greg Kroah-Hartman

    Oliver Neukum
     

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
     

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