5 files changed, 10 insertions, 190 deletions

diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 1d11e6e0373e..52436abc3b4d 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -548,18 +548,12 @@ struct gfs2_sbd {
         struct dentry *sd_root_dir;
 
         struct inode *sd_jindex;
-        struct inode *sd_inum_inode;
         struct inode *sd_statfs_inode;
-        struct inode *sd_ir_inode;
         struct inode *sd_sc_inode;
         struct inode *sd_qc_inode;
         struct inode *sd_rindex;
         struct inode *sd_quota_inode;
 
-        /* Inum stuff */
-
-        struct mutex sd_inum_mutex;
-
         /* StatFS stuff */
 
         spinlock_t sd_statfs_spin;
@@ -587,7 +581,6 @@ struct gfs2_sbd {
         struct gfs2_holder sd_journal_gh;
         struct gfs2_holder sd_jinode_gh;
 
-        struct gfs2_holder sd_ir_gh;
         struct gfs2_holder sd_sc_gh;
         struct gfs2_holder sd_qc_gh;
 
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 4f5e442d60d8..fb15d3b1f409 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -519,139 +519,6 @@ out:
         return inode ? inode : ERR_PTR(error);
 }
 
-static void gfs2_inum_range_in(struct gfs2_inum_range_host *ir, const void *buf)
-{
-        const struct gfs2_inum_range *str = buf;
-
-        ir->ir_start = be64_to_cpu(str->ir_start);
-        ir->ir_length = be64_to_cpu(str->ir_length);
-}
-
-static void gfs2_inum_range_out(const struct gfs2_inum_range_host *ir, void *buf)
-{
-        struct gfs2_inum_range *str = buf;
-
-        str->ir_start = cpu_to_be64(ir->ir_start);
-        str->ir_length = cpu_to_be64(ir->ir_length);
-}
-
-static int pick_formal_ino_1(struct gfs2_sbd *sdp, u64 *formal_ino)
-{
-        struct gfs2_inode *ip = GFS2_I(sdp->sd_ir_inode);
-        struct buffer_head *bh;
-        struct gfs2_inum_range_host ir;
-        int error;
-
-        error = gfs2_trans_begin(sdp, RES_DINODE, 0);
-        if (error)
-                return error;
-        mutex_lock(&sdp->sd_inum_mutex);
-
-        error = gfs2_meta_inode_buffer(ip, &bh);
-        if (error) {
-                mutex_unlock(&sdp->sd_inum_mutex);
-                gfs2_trans_end(sdp);
-                return error;
-        }
-
-        gfs2_inum_range_in(&ir, bh->b_data + sizeof(struct gfs2_dinode));
-
-        if (ir.ir_length) {
-                *formal_ino = ir.ir_start++;
-                ir.ir_length--;
-                gfs2_trans_add_bh(ip->i_gl, bh, 1);
-                gfs2_inum_range_out(&ir,
-                                    bh->b_data + sizeof(struct gfs2_dinode));
-                brelse(bh);
-                mutex_unlock(&sdp->sd_inum_mutex);
-                gfs2_trans_end(sdp);
-                return 0;
-        }
-
-        brelse(bh);
-
-        mutex_unlock(&sdp->sd_inum_mutex);
-        gfs2_trans_end(sdp);
-
-        return 1;
-}
-
-static int pick_formal_ino_2(struct gfs2_sbd *sdp, u64 *formal_ino)
-{
-        struct gfs2_inode *ip = GFS2_I(sdp->sd_ir_inode);
-        struct gfs2_inode *m_ip = GFS2_I(sdp->sd_inum_inode);
-        struct gfs2_holder gh;
-        struct buffer_head *bh;
-        struct gfs2_inum_range_host ir;
-        int error;
-
-        error = gfs2_glock_nq_init(m_ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
-        if (error)
-                return error;
-
-        error = gfs2_trans_begin(sdp, 2 * RES_DINODE, 0);
-        if (error)
-                goto out;
-        mutex_lock(&sdp->sd_inum_mutex);
-
-        error = gfs2_meta_inode_buffer(ip, &bh);
-        if (error)
-                goto out_end_trans;
-
-        gfs2_inum_range_in(&ir, bh->b_data + sizeof(struct gfs2_dinode));
-
-        if (!ir.ir_length) {
-                struct buffer_head *m_bh;
-                u64 x, y;
-                __be64 z;
-
-                error = gfs2_meta_inode_buffer(m_ip, &m_bh);
-                if (error)
-                        goto out_brelse;
-
-                z = *(__be64 *)(m_bh->b_data + sizeof(struct gfs2_dinode));
-                x = y = be64_to_cpu(z);
-                ir.ir_start = x;
-                ir.ir_length = GFS2_INUM_QUANTUM;
-                x += GFS2_INUM_QUANTUM;
-                if (x < y)
-                        gfs2_consist_inode(m_ip);
-                z = cpu_to_be64(x);
-                gfs2_trans_add_bh(m_ip->i_gl, m_bh, 1);
-                *(__be64 *)(m_bh->b_data + sizeof(struct gfs2_dinode)) = z;
-
-                brelse(m_bh);
-        }
-
-        *formal_ino = ir.ir_start++;
-        ir.ir_length--;
-
-        gfs2_trans_add_bh(ip->i_gl, bh, 1);
-        gfs2_inum_range_out(&ir, bh->b_data + sizeof(struct gfs2_dinode));
-
-out_brelse:
-        brelse(bh);
-out_end_trans:
-        mutex_unlock(&sdp->sd_inum_mutex);
-        gfs2_trans_end(sdp);
-out:
-        gfs2_glock_dq_uninit(&gh);
-        return error;
-}
-
-static int pick_formal_ino(struct gfs2_sbd *sdp, u64 *inum)
-{
-        int error;
-
-        error = pick_formal_ino_1(sdp, inum);
-        if (error <= 0)
-                return error;
-
-        error = pick_formal_ino_2(sdp, inum);
-
-        return error;
-}
-
 /**
  * create_ok - OK to create a new on-disk inode here?
  * @dip:  Directory in which dinode is to be created
@@ -981,13 +848,10 @@ struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
         if (error)
                 goto fail_gunlock;
 
-        error = pick_formal_ino(sdp, &inum.no_formal_ino);
-        if (error)
-                goto fail_gunlock;
-
         error = alloc_dinode(dip, &inum.no_addr, &generation);
         if (error)
                 goto fail_gunlock;
+        inum.no_formal_ino = generation;
 
         error = gfs2_glock_nq_num(sdp, inum.no_addr, &gfs2_inode_glops,
                                   LM_ST_EXCLUSIVE, GL_SKIP, ghs + 1);
@@ -998,9 +862,8 @@ struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
         if (error)
                 goto fail_gunlock2;
 
-        inode = gfs2_inode_lookup(dir->i_sb, IF2DT(mode),
-                                        inum.no_addr,
-                                        inum.no_formal_ino, 0);
+        inode = gfs2_inode_lookup(dir->i_sb, IF2DT(mode), inum.no_addr,
+                                  inum.no_formal_ino, 0);
         if (IS_ERR(inode))
                 goto fail_gunlock2;
 
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 1ec69e63c694..8e3f00e1430d 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -84,7 +84,6 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
 
         gfs2_tune_init(&sdp->sd_tune);
 
-        mutex_init(&sdp->sd_inum_mutex);
         spin_lock_init(&sdp->sd_statfs_spin);
 
         spin_lock_init(&sdp->sd_rindex_spin);
@@ -833,21 +832,12 @@ static int init_inodes(struct gfs2_sbd *sdp, int undo)
         if (error)
                 goto fail;
 
-        /* Read in the master inode number inode */
-        sdp->sd_inum_inode = gfs2_lookup_simple(master, "inum");
-        if (IS_ERR(sdp->sd_inum_inode)) {
-                error = PTR_ERR(sdp->sd_inum_inode);
-                fs_err(sdp, "can't read in inum inode: %d\n", error);
-                goto fail_journal;
-        }
-
-
         /* Read in the master statfs inode */
         sdp->sd_statfs_inode = gfs2_lookup_simple(master, "statfs");
         if (IS_ERR(sdp->sd_statfs_inode)) {
                 error = PTR_ERR(sdp->sd_statfs_inode);
                 fs_err(sdp, "can't read in statfs inode: %d\n", error);
-                goto fail_inum;
+                goto fail_journal;
         }
 
         /* Read in the resource index inode */
@@ -876,8 +866,6 @@ fail_rindex:
         iput(sdp->sd_rindex);
 fail_statfs:
         iput(sdp->sd_statfs_inode);
-fail_inum:
-        iput(sdp->sd_inum_inode);
 fail_journal:
         init_journal(sdp, UNDO);
 fail:
@@ -905,20 +893,12 @@ static int init_per_node(struct gfs2_sbd *sdp, int undo)
                 return error;
         }
 
-        sprintf(buf, "inum_range%u", sdp->sd_jdesc->jd_jid);
-        sdp->sd_ir_inode = gfs2_lookup_simple(pn, buf);
-        if (IS_ERR(sdp->sd_ir_inode)) {
-                error = PTR_ERR(sdp->sd_ir_inode);
-                fs_err(sdp, "can't find local \"ir\" file: %d\n", error);
-                goto fail;
-        }
-
         sprintf(buf, "statfs_change%u", sdp->sd_jdesc->jd_jid);
         sdp->sd_sc_inode = gfs2_lookup_simple(pn, buf);
         if (IS_ERR(sdp->sd_sc_inode)) {
                 error = PTR_ERR(sdp->sd_sc_inode);
                 fs_err(sdp, "can't find local \"sc\" file: %d\n", error);
-                goto fail_ir_i;
+                goto fail;
         }
 
         sprintf(buf, "quota_change%u", sdp->sd_jdesc->jd_jid);
@@ -932,27 +912,16 @@ static int init_per_node(struct gfs2_sbd *sdp, int undo)
         iput(pn);
         pn = NULL;
 
-        ip = GFS2_I(sdp->sd_ir_inode);
-        error = gfs2_glock_nq_init(ip->i_gl,
-                                   LM_ST_EXCLUSIVE, 0,
-                                   &sdp->sd_ir_gh);
-        if (error) {
-                fs_err(sdp, "can't lock local \"ir\" file: %d\n", error);
-                goto fail_qc_i;
-        }
-
         ip = GFS2_I(sdp->sd_sc_inode);
-        error = gfs2_glock_nq_init(ip->i_gl,
-                                   LM_ST_EXCLUSIVE, 0,
+        error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0,
                                    &sdp->sd_sc_gh);
         if (error) {
                 fs_err(sdp, "can't lock local \"sc\" file: %d\n", error);
-                goto fail_ir_gh;
+                goto fail_qc_i;
         }
 
         ip = GFS2_I(sdp->sd_qc_inode);
-        error = gfs2_glock_nq_init(ip->i_gl,
-                                   LM_ST_EXCLUSIVE, 0,
+        error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0,
                                    &sdp->sd_qc_gh);
         if (error) {
                 fs_err(sdp, "can't lock local \"qc\" file: %d\n", error);
@@ -965,14 +934,10 @@ fail_qc_gh:
         gfs2_glock_dq_uninit(&sdp->sd_qc_gh);
 fail_ut_gh:
         gfs2_glock_dq_uninit(&sdp->sd_sc_gh);
-fail_ir_gh:
-        gfs2_glock_dq_uninit(&sdp->sd_ir_gh);
 fail_qc_i:
         iput(sdp->sd_qc_inode);
 fail_ut_i:
         iput(sdp->sd_sc_inode);
-fail_ir_i:
-        iput(sdp->sd_ir_inode);
 fail:
         if (pn)
                 iput(pn);
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index c681c54fbd60..388a61d12fc8 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1567,6 +1567,8 @@ int gfs2_alloc_di(struct gfs2_inode *dip, u64 *bn, u64 *generation)
         rgd->rd_free--;
         rgd->rd_dinodes++;
         *generation = rgd->rd_igeneration++;
+        if (*generation == 0)
+                *generation = rgd->rd_igeneration++;
         gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
         gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
 
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 2e78a3f68a76..d95cf777d244 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -788,7 +788,6 @@ restart:
         /*  Release stuff  */
 
         iput(sdp->sd_jindex);
-        iput(sdp->sd_inum_inode);
         iput(sdp->sd_statfs_inode);
         iput(sdp->sd_rindex);
         iput(sdp->sd_quota_inode);
@@ -799,10 +798,8 @@ restart:
         if (!sdp->sd_args.ar_spectator) {
                 gfs2_glock_dq_uninit(&sdp->sd_journal_gh);
                 gfs2_glock_dq_uninit(&sdp->sd_jinode_gh);
-                gfs2_glock_dq_uninit(&sdp->sd_ir_gh);
                 gfs2_glock_dq_uninit(&sdp->sd_sc_gh);
                 gfs2_glock_dq_uninit(&sdp->sd_qc_gh);
-                iput(sdp->sd_ir_inode);
                 iput(sdp->sd_sc_inode);
                 iput(sdp->sd_qc_inode);
         }