This should be authored by Fred -->Andy On Feb 15, 2011, at 3:39 AM, andros@xxxxxxxxxx wrote: > From: Andy Adamson <andros@xxxxxxxxxx> > > Signed-off-by: Fred Isaman <iisaman@xxxxxxxxxx> > --- > Documentation/filesystems/nfs/pnfs.txt | 7 +++++++ > 1 files changed, 7 insertions(+), 0 deletions(-) > > diff --git a/Documentation/filesystems/nfs/pnfs.txt b/Documentation/filesystems/nfs/pnfs.txt > index bc0b9cf..983e14a 100644 > --- a/Documentation/filesystems/nfs/pnfs.txt > +++ b/Documentation/filesystems/nfs/pnfs.txt > @@ -46,3 +46,10 @@ data server cache > file driver devices refer to data servers, which are kept in a module > level cache. Its reference is held over the lifetime of the deviceid > pointing to it. > + > +lseg > +---- > +lseg maintains an extra reference corresponding to the NFS_LSEG_VALID > +bit which holds it in the pnfs_layout_hdr's list. When the final lseg > +is removed from the pnfs_layout_hdr's list, the NFS_LAYOUT_DESTROYED > +bit is set, preventing any new lsegs from being added. > -- > 1.7.2.3 > -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
