12 Sep, 2015

1 commit

  • The seq_ function return values were frequently misused.

    See: commit 1f33c41c03da ("seq_file: Rename seq_overflow() to
    seq_has_overflowed() and make public")

    All uses of these return values have been removed, so convert the
    return types to void.

    Miscellanea:

    o Move seq_put_decimal_ and seq_escape prototypes closer the
    other seq_vprintf prototypes
    o Reorder seq_putc and seq_puts to return early on overflow
    o Add argument names to seq_vprintf and seq_printf
    o Update the seq_escape kernel-doc
    o Convert a couple of leading spaces to tabs in seq_escape

    Signed-off-by: Joe Perches
    Cc: Al Viro
    Cc: Steven Rostedt
    Cc: Mark Brown
    Cc: Stephen Rothwell
    Cc: Joerg Roedel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Joe Perches
     

12 Jul, 2015

1 commit


16 Apr, 2015

1 commit


11 Dec, 2014

1 commit

  • New pseudo-filesystem: nsfs. Targets of /proc/*/ns/* live there now.
    It's not mountable (not even registered, so it's not in /proc/filesystems,
    etc.). Files on it *are* bindable - we explicitly permit that in do_loopback().

    This stuff lives in fs/nsfs.c now; proc_ns_fget() moved there as well.
    get_proc_ns() is a macro now (it's simply returning ->i_private; would
    have been an inline, if not for header ordering headache).
    proc_ns_inode() is an ex-parrot. The interface used in procfs is
    ns_get_path(path, task, ops) and ns_get_name(buf, size, task, ops).

    Dentries and inodes are never hashed; a non-counting reference to dentry
    is stashed in ns_common (removed by ->d_prune()) and reused by ns_get_path()
    if present. See ns_get_path()/ns_prune_dentry/nsfs_evict() for details
    of that mechanism.

    As the result, proc_ns_follow_link() has stopped poking in nd->path.mnt;
    it does nd_jump_link() on a consistent pair it gets
    from ns_get_path().

    Signed-off-by: Al Viro

    Al Viro