Hi,
We still need that, it is the generation number for NFS. Although it is
also identical to the no_formal_ino in recent kernels,
Steve.
On Wed, 2011-03-23 at 09:37 -0400, Bob Peterson wrote:
> Hi,
>
> Since GFS2 doesn't rely upon generation numbers like GFS1, we do not
> need to copy the generation number into memory and out of memory.
> This patch eliminates the variable from the in-core structure and
> will reduce the memory requirements of GFS2.
>
> Regards,
>
> Bob Peterson
> Red Hat File Systems
>
> Signed-off-by: Bob Peterson <rpete...@redhat.com>
> --
> diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
> index 870a89d..2329296 100644
> --- a/fs/gfs2/incore.h
> +++ b/fs/gfs2/incore.h
> @@ -272,7 +272,6 @@ struct gfs2_inode {
> struct inode i_inode;
> u64 i_no_addr;
> u64 i_no_formal_ino;
> - u64 i_generation;
> u64 i_eattr;
> unsigned long i_flags; /* GIF_... */
> struct gfs2_glock *i_gl; /* Move into i_gh? */
> diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
> index 97d54a2..b4e416a 100644
> --- a/fs/gfs2/inode.c
> +++ b/fs/gfs2/inode.c
> @@ -261,7 +261,6 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const
> void *buf)
> ip->i_inode.i_ctime.tv_nsec = be32_to_cpu(str->di_ctime_nsec);
>
> ip->i_goal = be64_to_cpu(str->di_goal_meta);
> - ip->i_generation = be64_to_cpu(str->di_generation);
>
> ip->i_diskflags = be32_to_cpu(str->di_flags);
> gfs2_set_inode_flags(&ip->i_inode);
> @@ -626,7 +625,6 @@ static void init_dinode(struct gfs2_inode *dip, struct
> gfs2_glock *gl,
> di->di_major = cpu_to_be32(MAJOR(dev));
> di->di_minor = cpu_to_be32(MINOR(dev));
> di->di_goal_meta = di->di_goal_data = cpu_to_be64(inum->no_addr);
> - di->di_generation = cpu_to_be64(*generation);
> di->di_flags = 0;
>
> if (S_ISREG(mode)) {
> @@ -944,7 +942,6 @@ void gfs2_dinode_out(const struct gfs2_inode *ip, void
> *buf)
>
> str->di_goal_meta = cpu_to_be64(ip->i_goal);
> str->di_goal_data = cpu_to_be64(ip->i_goal);
> - str->di_generation = cpu_to_be64(ip->i_generation);
>
> str->di_flags = cpu_to_be32(ip->i_diskflags);
> str->di_height = cpu_to_be16(ip->i_height);
>
