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[GFS2] Remove rgrp and glock version numbers

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This patch further reduces GFS2's memory requirements by
eliminating the 64-bit version number fields in lieu of
a couple bits.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Bob Peterson
2008-01-31 10:31:39 -06:00
committed by Steven Whitehouse
parent da755fdb41
commit cf45b752c9
5 changed files with 20 additions and 16 deletions
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14
fs/gfs2/rgrp.c
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@@ -540,7 +540,7 @@ static int read_rindex_entry(struct gfs2_inode *ip,
return error;
rgd->rd_gl->gl_object = rgd;
rgd->rd_rg_vn = rgd->rd_gl->gl_vn - 1;
rgd->rd_flags &= ~GFS2_RDF_UPTODATE;
rgd->rd_flags |= GFS2_RDF_CHECK;
return error;
}
@@ -576,7 +576,7 @@ static int gfs2_ri_update(struct gfs2_inode *ip)
}
}
sdp->sd_rindex_vn = ip->i_gl->gl_vn;
sdp->sd_rindex_uptodate = 1;
return 0;
}
@@ -610,7 +610,7 @@ static int gfs2_ri_update_special(struct gfs2_inode *ip)
}
}
sdp->sd_rindex_vn = ip->i_gl->gl_vn;
sdp->sd_rindex_uptodate = 1;
return 0;
}
@@ -643,9 +643,9 @@ int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh)
return error;
/* Read new copy from disk if we don't have the latest */
if (sdp->sd_rindex_vn != gl->gl_vn) {
if (!sdp->sd_rindex_uptodate) {
mutex_lock(&sdp->sd_rindex_mutex);
if (sdp->sd_rindex_vn != gl->gl_vn) {
if (!sdp->sd_rindex_uptodate) {
error = gfs2_ri_update(ip);
if (error)
gfs2_glock_dq_uninit(ri_gh);
@@ -737,9 +737,9 @@ int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd)
}
}
if (rgd->rd_rg_vn != gl->gl_vn) {
if (!(rgd->rd_flags & GFS2_RDF_UPTODATE)) {
gfs2_rgrp_in(rgd, (rgd->rd_bits[0].bi_bh)->b_data);
rgd->rd_rg_vn = gl->gl_vn;
rgd->rd_flags |= GFS2_RDF_UPTODATE;
}
spin_lock(&sdp->sd_rindex_spin);