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    SubjectRe: Proposal: Use hi-res clock for file timestamps
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    On Fri, Aug 13, 2010 at 12:09 PM, john stultz <johnstul@us.ibm.com> wrote:
    >
    > So other then "show some numbers", my only thought that might make the
    > patch more attractive is that rather than a global change, or a static
    > CONFIG_ option, would it maybe make more sense as a mount option?

    I really like this idea.

    Consider the following "revision 2" of my proposal:

    1) Add a function pointer "current_fs_time" to struct super_block.

    2) Replace all calls of the form:

    current_fs_time(sb);

    with

    sb->current_fs_time(sb);

    3) Arrange for the default value to point to the current implementation.

    These first three could be one patch. They change no functionality;
    they just enable the next step.

    Finally:

    4) Add a mount option to cause sb->current_fs_time(sb) to use the
    hi-res implementation.

    Comments?

    - Pat


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