Eric Lee / smarc-fsl-linux-kernel

02 Feb, 2011

1 commit

  • 2a7dba391   fs/vfs/security: pass last path component to LSM on inode creation ... Browse Code »

    SELinux would like to implement a new labeling behavior of newly created
    inodes. We currently label new inodes based on the parent and the creating
    process. This new behavior would also take into account the name of the
    new object when deciding the new label. This is not the (supposed) full path,
    just the last component of the path.

    This is very useful because creating /etc/shadow is different than creating
    /etc/passwd but the kernel hooks are unable to differentiate these
    operations. We currently require that userspace realize it is doing some
    difficult operation like that and than userspace jumps through SELinux hoops
    to get things set up correctly. This patch does not implement new
    behavior, that is obviously contained in a seperate SELinux patch, but it
    does pass the needed name down to the correct LSM hook. If no such name
    exists it is fine to pass NULL.

    Signed-off-by: Eric Paris

    Eric Paris
     

29 Oct, 2010

1 commit

  • 19ef20143   ext4: fix compile with CONFIG_EXT4_FS_XATTR disabled ... Browse Code »

    Commit 5dabfc78dced ("ext4: rename {exit,init}_ext4_*() to
    ext4_{exit,init}_*()") causes

    fs/ext4/super.c:4776: error: implicit declaration of function ‘ext4_init_xattr’

    when CONFIG_EXT4_FS_XATTR is disabled.

    It renamed init_ext4_xattr to ext4_init_xattr but forgot to update the
    dummy definition in fs/ext4/xattr.h.

    Signed-off-by: Ingo Molnar
    Acked-by: "Theodore Ts'o"
    Signed-off-by: Linus Torvalds

    Ingo Molnar
     

28 Oct, 2010

1 commit

22 May, 2010

1 commit

11 Oct, 2008

1 commit

09 Sep, 2008

1 commit

17 Apr, 2008

1 commit

18 Jul, 2007

1 commit

  • 6dd4ee7ca   ext4: Expand extra_inodes space per the s_{want,min}_extra_isize fields ... Browse Code »

    We need to make sure that existing ext3 filesystems can also avail the
    new fields that have been added to the ext4 inode. We use
    s_want_extra_isize and s_min_extra_isize to decide by how much we should
    expand the inode. If EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE feature is set
    then we expand the inode by max(s_want_extra_isize, s_min_extra_isize ,
    sizeof(ext4_inode) - EXT4_GOOD_OLD_INODE_SIZE) bytes. Actually it is
    still an open question about whether users should be able to set
    s_*_extra_isize smaller than the known fields or not.

    This patch also adds the functionality to expand inodes to include the
    newly added fields. We start by trying to expand by s_want_extra_isize
    bytes and if its fails we try to expand by s_min_extra_isize bytes. This
    is done by changing the i_extra_isize if enough space is available in
    the inode and no EAs are present. If EAs are present and there is enough
    space in the inode then the EAs in the inode are shifted to make space.
    If enough space is not available in the inode due to the EAs then 1 or
    more EAs are shifted to the external EA block. In the worst case when
    even the external EA block does not have enough space we inform the user
    that some EA would need to be deleted or s_min_extra_isize would have to
    be reduced.

    Signed-off-by: Andreas Dilger
    Signed-off-by: Kalpak Shah
    Signed-off-by: Mingming Cao
    Signed-off-by: "Theodore Ts'o"

    Kalpak Shah
     

12 Oct, 2006

2 commits