lkml.org 
[lkml]   [2006]   [Feb]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH, RFC] sysfs: relay channel buffers as sysfs attributes
    On Mon, Feb 20, 2006 at 08:05:56AM -0500, Mathieu Desnoyers wrote:
    > * LTTng does have its own ltt_poll and ltt_ioctl that are all what is needed to
    > control the interaction with the file (along with the relayfs mmap/unmap).
    >
    > In this scenario, the sysfs relay attribute creation would look like :
    >
    > - create an empty attr
    > - fill some of attr members
    > - sysfs_create_relay_file(kobj, attr);
    > (it will overwrite some attr members : kobj, rchan, rchan_buf)
    > * set specific LTTng file operations on the inode

    defintily not on sysfs. sysfs doesn't allow drivers to modify the
    file operations for good reasons. it'll probably work the same as-is
    when you use the rely file operations on debugfs or a custom filesystem,
    although you're code will have zero chance to get merged when it modifies
    an existing file operations struct or adds an ioctl.

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2006-02-20 15:19    [W:0.044 / U:151.744 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site