tree f2b299f5a5d04cf8d3d0ef10ff264bd34943f90e
parent 818d276ceb83aa9fdebb5e0a53188290312de987
author Jean Noel Cordenner <jean-noel.cordenner@bull.net> 1201582707 -0500
committer Theodore Ts'o <tytso@mit.edu> 1201582707 -0500

vfs: Add 64 bit i_version support

The i_version field of the inode is changed to be a 64-bit counter that
is set on every inode creation and that is incremented every time the
inode data is modified (similarly to the "ctime" time-stamp).
The aim is to fulfill a NFSv4 requirement for rfc3530.
This first part concerns the vfs, it converts the 32-bit i_version in
the generic inode to a 64-bit, a flag is added in the super block in
order to check if the feature is enabled and the i_version is
incremented in the vfs.

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Jean Noel Cordenner <jean-noel.cordenner@bull.net>
Signed-off-by: Kalpak Shah <kalpak@clusterfs.com>