[GFS2] Shrink gfs2_inode (8) - i_vn
This shrinks the size of the gfs2_inode by 8 bytes by
replacing the version counter with a one bit valid/invalid
flag.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index aad45b7..9c20337 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -305,8 +305,9 @@
int data = (flags & DIO_DATA);
if (meta) {
+ struct gfs2_inode *ip = gl->gl_object;
gfs2_meta_inval(gl);
- gl->gl_vn++;
+ set_bit(GIF_INVALID, &ip->i_flags);
}
if (data)
gfs2_page_inval(gl);
@@ -351,7 +352,7 @@
if (!ip)
return 0;
- if (ip->i_vn != gl->gl_vn) {
+ if (test_bit(GIF_INVALID, &ip->i_flags)) {
error = gfs2_inode_refresh(ip);
if (error)
return error;