lkml.org 
[lkml]   [2011]   [Aug]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH 4/4] parse options in the vfs level
    On 08/02/2011 11:18 AM, Al Viro wrote:
    > On Tue, Aug 02, 2011 at 10:04:06AM -0300, Glauber Costa wrote:
    >
    >> I am not sure either, but I still believe my proposal is superior to
    >> write-to-a-file specifically. Writing to a file, be it in proc, sys,
    >> or wherever, leaves a window of opportunity open between mounting a
    >> filesystem and limiting its caches. Doing it on mount is atomic.
    >>
    >> Effectively, I see this limit as a property of a particular instance
    >> of a mounted filesystem. Since all properties of a filesystem are
    >> specified during mount, this becomes a natural extension.
    >
    > The trouble is, dentry tree is fundamentally a property of superblock.
    > It's shared between *all* instances of that fs in all mount trees...

    And how is it different from any fs-specific options, like the ones extX
    have, for instance ? Many of them seem to operate on a superblock.

    If you mount a superblock somewhere, you can tweak specifics about its
    operation. If you mount it somewhere else, the assumption is you know
    what you're doing.




    \
     
     \ /
      Last update: 2011-08-02 16:47    [W:0.021 / U:0.212 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site