x86: provide bogus hard_smp_processor_id
[safe/jmp/linux-2.6] / fs / gfs2 / rgrp.c
index 15c326c..3552110 100644 (file)
@@ -1,25 +1,22 @@
 /*
  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
- * Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
+ * Copyright (C) 2004-2007 Red Hat, Inc.  All rights reserved.
  *
  * This copyrighted material is made available to anyone wishing to use,
  * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License v.2.
+ * of the GNU General Public License version 2.
  */
 
-#include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/completion.h>
 #include <linux/buffer_head.h>
 #include <linux/fs.h>
 #include <linux/gfs2_ondisk.h>
-#include <asm/semaphore.h>
+#include <linux/lm_interface.h>
 
 #include "gfs2.h"
-#include "lm_interface.h"
 #include "incore.h"
-#include "bits.h"
 #include "glock.h"
 #include "glops.h"
 #include "lops.h"
 #include "rgrp.h"
 #include "super.h"
 #include "trans.h"
-#include "ops_file.h"
 #include "util.h"
+#include "log.h"
+#include "inode.h"
+#include "ops_address.h"
+
+#define BFITNOENT ((u32)~0)
+#define NO_BLOCK ((u64)~0)
+
+/*
+ * These routines are used by the resource group routines (rgrp.c)
+ * to keep track of block allocation.  Each block is represented by two
+ * bits.  So, each byte represents GFS2_NBBY (i.e. 4) blocks.
+ *
+ * 0 = Free
+ * 1 = Used (not metadata)
+ * 2 = Unlinked (still in use) inode
+ * 3 = Used (metadata)
+ */
+
+static const char valid_change[16] = {
+               /* current */
+       /* n */ 0, 1, 1, 1,
+       /* e */ 1, 0, 0, 0,
+       /* w */ 0, 0, 0, 1,
+               1, 0, 0, 0
+};
+
+static u32 rgblk_search(struct gfs2_rgrpd *rgd, u32 goal,
+                        unsigned char old_state, unsigned char new_state);
+
+/**
+ * gfs2_setbit - Set a bit in the bitmaps
+ * @buffer: the buffer that holds the bitmaps
+ * @buflen: the length (in bytes) of the buffer
+ * @block: the block to set
+ * @new_state: the new state of the block
+ *
+ */
+
+static void gfs2_setbit(struct gfs2_rgrpd *rgd, unsigned char *buffer,
+                       unsigned int buflen, u32 block,
+                       unsigned char new_state)
+{
+       unsigned char *byte, *end, cur_state;
+       unsigned int bit;
+
+       byte = buffer + (block / GFS2_NBBY);
+       bit = (block % GFS2_NBBY) * GFS2_BIT_SIZE;
+       end = buffer + buflen;
+
+       gfs2_assert(rgd->rd_sbd, byte < end);
+
+       cur_state = (*byte >> bit) & GFS2_BIT_MASK;
+
+       if (valid_change[new_state * 4 + cur_state]) {
+               *byte ^= cur_state << bit;
+               *byte |= new_state << bit;
+       } else
+               gfs2_consist_rgrpd(rgd);
+}
+
+/**
+ * gfs2_testbit - test a bit in the bitmaps
+ * @buffer: the buffer that holds the bitmaps
+ * @buflen: the length (in bytes) of the buffer
+ * @block: the block to read
+ *
+ */
+
+static unsigned char gfs2_testbit(struct gfs2_rgrpd *rgd, unsigned char *buffer,
+                                 unsigned int buflen, u32 block)
+{
+       unsigned char *byte, *end, cur_state;
+       unsigned int bit;
+
+       byte = buffer + (block / GFS2_NBBY);
+       bit = (block % GFS2_NBBY) * GFS2_BIT_SIZE;
+       end = buffer + buflen;
+
+       gfs2_assert(rgd->rd_sbd, byte < end);
+
+       cur_state = (*byte >> bit) & GFS2_BIT_MASK;
+
+       return cur_state;
+}
+
+/**
+ * gfs2_bitfit - Search an rgrp's bitmap buffer to find a bit-pair representing
+ *       a block in a given allocation state.
+ * @buffer: the buffer that holds the bitmaps
+ * @buflen: the length (in bytes) of the buffer
+ * @goal: start search at this block's bit-pair (within @buffer)
+ * @old_state: GFS2_BLKST_XXX the state of the block we're looking for.
+ *
+ * Scope of @goal and returned block number is only within this bitmap buffer,
+ * not entire rgrp or filesystem.  @buffer will be offset from the actual
+ * beginning of a bitmap block buffer, skipping any header structures.
+ *
+ * Return: the block number (bitmap buffer scope) that was found
+ */
+
+static u32 gfs2_bitfit(unsigned char *buffer, unsigned int buflen, u32 goal,
+                      unsigned char old_state)
+{
+       unsigned char *byte;
+       u32 blk = goal;
+       unsigned int bit, bitlong;
+       unsigned long *plong, plong55;
+
+       byte = buffer + (goal / GFS2_NBBY);
+       plong = (unsigned long *)(buffer + (goal / GFS2_NBBY));
+       bit = (goal % GFS2_NBBY) * GFS2_BIT_SIZE;
+       bitlong = bit;
+#if BITS_PER_LONG == 32
+       plong55 = 0x55555555;
+#else
+       plong55 = 0x5555555555555555;
+#endif
+       while (byte < buffer + buflen) {
+
+               if (bitlong == 0 && old_state == 0 && *plong == plong55) {
+                       plong++;
+                       byte += sizeof(unsigned long);
+                       blk += sizeof(unsigned long) * GFS2_NBBY;
+                       continue;
+               }
+               if (((*byte >> bit) & GFS2_BIT_MASK) == old_state)
+                       return blk;
+               bit += GFS2_BIT_SIZE;
+               if (bit >= 8) {
+                       bit = 0;
+                       byte++;
+               }
+               bitlong += GFS2_BIT_SIZE;
+               if (bitlong >= sizeof(unsigned long) * 8) {
+                       bitlong = 0;
+                       plong++;
+               }
+
+               blk++;
+       }
+
+       return BFITNOENT;
+}
+
+/**
+ * gfs2_bitcount - count the number of bits in a certain state
+ * @buffer: the buffer that holds the bitmaps
+ * @buflen: the length (in bytes) of the buffer
+ * @state: the state of the block we're looking for
+ *
+ * Returns: The number of bits
+ */
+
+static u32 gfs2_bitcount(struct gfs2_rgrpd *rgd, unsigned char *buffer,
+                             unsigned int buflen, unsigned char state)
+{
+       unsigned char *byte = buffer;
+       unsigned char *end = buffer + buflen;
+       unsigned char state1 = state << 2;
+       unsigned char state2 = state << 4;
+       unsigned char state3 = state << 6;
+       u32 count = 0;
+
+       for (; byte < end; byte++) {
+               if (((*byte) & 0x03) == state)
+                       count++;
+               if (((*byte) & 0x0C) == state1)
+                       count++;
+               if (((*byte) & 0x30) == state2)
+                       count++;
+               if (((*byte) & 0xC0) == state3)
+                       count++;
+       }
+
+       return count;
+}
 
 /**
  * gfs2_rgrp_verify - Verify that a resource group is consistent
@@ -42,11 +214,11 @@ void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd)
 {
        struct gfs2_sbd *sdp = rgd->rd_sbd;
        struct gfs2_bitmap *bi = NULL;
-       uint32_t length = rgd->rd_ri.ri_length;
-       uint32_t count[4], tmp;
+       u32 length = rgd->rd_length;
+       u32 count[4], tmp;
        int buf, x;
 
-       memset(count, 0, 4 * sizeof(uint32_t));
+       memset(count, 0, 4 * sizeof(u32));
 
        /* Count # blocks in each of 4 possible allocation states */
        for (buf = 0; buf < length; buf++) {
@@ -65,36 +237,37 @@ void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd)
                return;
        }
 
-       tmp = rgd->rd_ri.ri_data -
+       tmp = rgd->rd_data -
                rgd->rd_rg.rg_free -
                rgd->rd_rg.rg_dinodes;
-       if (count[1] != tmp) {
+       if (count[1] + count[2] != tmp) {
                if (gfs2_consist_rgrpd(rgd))
                        fs_err(sdp, "used data mismatch:  %u != %u\n",
                               count[1], tmp);
                return;
        }
 
-       if (count[2]) {
+       if (count[3] != rgd->rd_rg.rg_dinodes) {
                if (gfs2_consist_rgrpd(rgd))
-                       fs_err(sdp, "free metadata mismatch:  %u != 0\n",
-                              count[2]);
+                       fs_err(sdp, "used metadata mismatch:  %u != %u\n",
+                              count[3], rgd->rd_rg.rg_dinodes);
                return;
        }
 
-       if (count[3] != rgd->rd_rg.rg_dinodes) {
+       if (count[2] > count[3]) {
                if (gfs2_consist_rgrpd(rgd))
-                       fs_err(sdp, "used metadata mismatch:  %u != %u\n",
-                              count[3], rgd->rd_rg.rg_dinodes);
+                       fs_err(sdp, "unlinked inodes > inodes:  %u\n",
+                              count[2]);
                return;
        }
+
 }
 
-static inline int rgrp_contains_block(struct gfs2_rindex *ri, uint64_t block)
+static inline int rgrp_contains_block(struct gfs2_rgrpd *rgd, u64 block)
 {
-       uint64_t first = ri->ri_data0;
-       uint64_t last = first + ri->ri_data;
-       return !!(first <= block && block < last);
+       u64 first = rgd->rd_data0;
+       u64 last = first + rgd->rd_data;
+       return first <= block && block < last;
 }
 
 /**
@@ -105,14 +278,14 @@ static inline int rgrp_contains_block(struct gfs2_rindex *ri, uint64_t block)
  * Returns: The resource group, or NULL if not found
  */
 
-struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, uint64_t blk)
+struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk)
 {
        struct gfs2_rgrpd *rgd;
 
        spin_lock(&sdp->sd_rindex_spin);
 
        list_for_each_entry(rgd, &sdp->sd_rindex_mru_list, rd_list_mru) {
-               if (rgrp_contains_block(&rgd->rd_ri, blk)) {
+               if (rgrp_contains_block(rgd, blk)) {
                        list_move(&rgd->rd_list_mru, &sdp->sd_rindex_mru_list);
                        spin_unlock(&sdp->sd_rindex_spin);
                        return rgd;
@@ -191,6 +364,15 @@ void gfs2_clear_rgrpd(struct gfs2_sbd *sdp)
        mutex_unlock(&sdp->sd_rindex_mutex);
 }
 
+static void gfs2_rindex_print(const struct gfs2_rgrpd *rgd)
+{
+       printk(KERN_INFO "  ri_addr = %llu\n", (unsigned long long)rgd->rd_addr);
+       printk(KERN_INFO "  ri_length = %u\n", rgd->rd_length);
+       printk(KERN_INFO "  ri_data0 = %llu\n", (unsigned long long)rgd->rd_data0);
+       printk(KERN_INFO "  ri_data = %u\n", rgd->rd_data);
+       printk(KERN_INFO "  ri_bitbytes = %u\n", rgd->rd_bitbytes);
+}
+
 /**
  * gfs2_compute_bitstructs - Compute the bitmap sizes
  * @rgd: The resource group descriptor
@@ -204,15 +386,18 @@ static int compute_bitstructs(struct gfs2_rgrpd *rgd)
 {
        struct gfs2_sbd *sdp = rgd->rd_sbd;
        struct gfs2_bitmap *bi;
-       uint32_t length = rgd->rd_ri.ri_length; /* # blocks in hdr & bitmap */
-       uint32_t bytes_left, bytes;
+       u32 length = rgd->rd_length; /* # blocks in hdr & bitmap */
+       u32 bytes_left, bytes;
        int x;
 
-       rgd->rd_bits = kcalloc(length, sizeof(struct gfs2_bitmap), GFP_KERNEL);
+       if (!length)
+               return -EINVAL;
+
+       rgd->rd_bits = kcalloc(length, sizeof(struct gfs2_bitmap), GFP_NOFS);
        if (!rgd->rd_bits)
                return -ENOMEM;
 
-       bytes_left = rgd->rd_ri.ri_bitbytes;
+       bytes_left = rgd->rd_bitbytes;
 
        for (x = 0; x < length; x++) {
                bi = rgd->rd_bits + x;
@@ -233,14 +418,14 @@ static int compute_bitstructs(struct gfs2_rgrpd *rgd)
                } else if (x + 1 == length) {
                        bytes = bytes_left;
                        bi->bi_offset = sizeof(struct gfs2_meta_header);
-                       bi->bi_start = rgd->rd_ri.ri_bitbytes - bytes_left;
+                       bi->bi_start = rgd->rd_bitbytes - bytes_left;
                        bi->bi_len = bytes;
                /* other blocks */
                } else {
                        bytes = sdp->sd_sb.sb_bsize -
                                sizeof(struct gfs2_meta_header);
                        bi->bi_offset = sizeof(struct gfs2_meta_header);
-                       bi->bi_start = rgd->rd_ri.ri_bitbytes - bytes_left;
+                       bi->bi_start = rgd->rd_bitbytes - bytes_left;
                        bi->bi_len = bytes;
                }
 
@@ -252,9 +437,9 @@ static int compute_bitstructs(struct gfs2_rgrpd *rgd)
                return -EIO;
        }
        bi = rgd->rd_bits + (length - 1);
-       if ((bi->bi_start + bi->bi_len) * GFS2_NBBY != rgd->rd_ri.ri_data) {
+       if ((bi->bi_start + bi->bi_len) * GFS2_NBBY != rgd->rd_data) {
                if (gfs2_consist_rgrpd(rgd)) {
-                       gfs2_rindex_print(&rgd->rd_ri);
+                       gfs2_rindex_print(rgd);
                        fs_err(sdp, "start=%u len=%u offset=%u\n",
                               bi->bi_start, bi->bi_len, bi->bi_offset);
                }
@@ -265,23 +450,116 @@ static int compute_bitstructs(struct gfs2_rgrpd *rgd)
 }
 
 /**
- * gfs2_ri_update - Pull in a new resource index from the disk
+ * gfs2_ri_total - Total up the file system space, according to the rindex.
+ *
+ */
+u64 gfs2_ri_total(struct gfs2_sbd *sdp)
+{
+       u64 total_data = 0;     
+       struct inode *inode = sdp->sd_rindex;
+       struct gfs2_inode *ip = GFS2_I(inode);
+       char buf[sizeof(struct gfs2_rindex)];
+       struct file_ra_state ra_state;
+       int error, rgrps;
+
+       mutex_lock(&sdp->sd_rindex_mutex);
+       file_ra_state_init(&ra_state, inode->i_mapping);
+       for (rgrps = 0;; rgrps++) {
+               loff_t pos = rgrps * sizeof(struct gfs2_rindex);
+
+               if (pos + sizeof(struct gfs2_rindex) >= ip->i_di.di_size)
+                       break;
+               error = gfs2_internal_read(ip, &ra_state, buf, &pos,
+                                          sizeof(struct gfs2_rindex));
+               if (error != sizeof(struct gfs2_rindex))
+                       break;
+               total_data += be32_to_cpu(((struct gfs2_rindex *)buf)->ri_data);
+       }
+       mutex_unlock(&sdp->sd_rindex_mutex);
+       return total_data;
+}
+
+static void gfs2_rindex_in(struct gfs2_rgrpd *rgd, const void *buf)
+{
+       const struct gfs2_rindex *str = buf;
+
+       rgd->rd_addr = be64_to_cpu(str->ri_addr);
+       rgd->rd_length = be32_to_cpu(str->ri_length);
+       rgd->rd_data0 = be64_to_cpu(str->ri_data0);
+       rgd->rd_data = be32_to_cpu(str->ri_data);
+       rgd->rd_bitbytes = be32_to_cpu(str->ri_bitbytes);
+}
+
+/**
+ * read_rindex_entry - Pull in a new resource index entry from the disk
  * @gl: The glock covering the rindex inode
  *
+ * Returns: 0 on success, error code otherwise
+ */
+
+static int read_rindex_entry(struct gfs2_inode *ip,
+                            struct file_ra_state *ra_state)
+{
+       struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+       loff_t pos = sdp->sd_rgrps * sizeof(struct gfs2_rindex);
+       char buf[sizeof(struct gfs2_rindex)];
+       int error;
+       struct gfs2_rgrpd *rgd;
+
+       error = gfs2_internal_read(ip, ra_state, buf, &pos,
+                                  sizeof(struct gfs2_rindex));
+       if (!error)
+               return 0;
+       if (error != sizeof(struct gfs2_rindex)) {
+               if (error > 0)
+                       error = -EIO;
+               return error;
+       }
+
+       rgd = kzalloc(sizeof(struct gfs2_rgrpd), GFP_NOFS);
+       error = -ENOMEM;
+       if (!rgd)
+               return error;
+
+       mutex_init(&rgd->rd_mutex);
+       lops_init_le(&rgd->rd_le, &gfs2_rg_lops);
+       rgd->rd_sbd = sdp;
+
+       list_add_tail(&rgd->rd_list, &sdp->sd_rindex_list);
+       list_add_tail(&rgd->rd_list_mru, &sdp->sd_rindex_mru_list);
+
+       gfs2_rindex_in(rgd, buf);
+       error = compute_bitstructs(rgd);
+       if (error)
+               return error;
+
+       error = gfs2_glock_get(sdp, rgd->rd_addr,
+                              &gfs2_rgrp_glops, CREATE, &rgd->rd_gl);
+       if (error)
+               return error;
+
+       rgd->rd_gl->gl_object = rgd;
+       rgd->rd_rg_vn = rgd->rd_gl->gl_vn - 1;
+       rgd->rd_flags |= GFS2_RDF_CHECK;
+       return error;
+}
+
+/**
+ * gfs2_ri_update - Pull in a new resource index from the disk
+ * @ip: pointer to the rindex inode
+ *
  * Returns: 0 on successful update, error code otherwise
  */
 
 static int gfs2_ri_update(struct gfs2_inode *ip)
 {
-       struct gfs2_sbd *sdp = ip->i_sbd;
-       struct inode *inode = ip->i_vnode;
-       struct gfs2_rgrpd *rgd;
-       char buf[sizeof(struct gfs2_rindex)];
+       struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+       struct inode *inode = &ip->i_inode;
        struct file_ra_state ra_state;
-       uint64_t junk = ip->i_di.di_size;
+       u64 rgrp_count = ip->i_di.di_size;
        int error;
 
-       if (do_div(junk, sizeof(struct gfs2_rindex))) {
+       if (do_div(rgrp_count, sizeof(struct gfs2_rindex))) {
                gfs2_consist_inode(ip);
                return -EIO;
        }
@@ -289,53 +567,50 @@ static int gfs2_ri_update(struct gfs2_inode *ip)
        clear_rgrpdi(sdp);
 
        file_ra_state_init(&ra_state, inode->i_mapping);
-       for (sdp->sd_rgrps = 0;; sdp->sd_rgrps++) {
-               loff_t pos = sdp->sd_rgrps * sizeof(struct gfs2_rindex);
-               error = gfs2_internal_read(ip, &ra_state, buf, &pos,
-                                           sizeof(struct gfs2_rindex));
-               if (!error)
-                       break;
-               if (error != sizeof(struct gfs2_rindex)) {
-                       if (error > 0)
-                               error = -EIO;
-                       goto fail;
+       for (sdp->sd_rgrps = 0; sdp->sd_rgrps < rgrp_count; sdp->sd_rgrps++) {
+               error = read_rindex_entry(ip, &ra_state);
+               if (error) {
+                       clear_rgrpdi(sdp);
+                       return error;
                }
+       }
 
-               rgd = kzalloc(sizeof(struct gfs2_rgrpd), GFP_KERNEL);
-               error = -ENOMEM;
-               if (!rgd)
-                       goto fail;
-
-               mutex_init(&rgd->rd_mutex);
-               lops_init_le(&rgd->rd_le, &gfs2_rg_lops);
-               rgd->rd_sbd = sdp;
-
-               list_add_tail(&rgd->rd_list, &sdp->sd_rindex_list);
-               list_add_tail(&rgd->rd_list_mru, &sdp->sd_rindex_mru_list);
-
-               gfs2_rindex_in(&rgd->rd_ri, buf);
-
-               error = compute_bitstructs(rgd);
-               if (error)
-                       goto fail;
+       sdp->sd_rindex_vn = ip->i_gl->gl_vn;
+       return 0;
+}
 
-               error = gfs2_glock_get(sdp, rgd->rd_ri.ri_addr,
-                                      &gfs2_rgrp_glops, CREATE, &rgd->rd_gl);
-               if (error)
-                       goto fail;
+/**
+ * gfs2_ri_update_special - Pull in a new resource index from the disk
+ *
+ * This is a special version that's safe to call from gfs2_inplace_reserve_i.
+ * In this case we know that we don't have any resource groups in memory yet.
+ *
+ * @ip: pointer to the rindex inode
+ *
+ * Returns: 0 on successful update, error code otherwise
+ */
+static int gfs2_ri_update_special(struct gfs2_inode *ip)
+{
+       struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+       struct inode *inode = &ip->i_inode;
+       struct file_ra_state ra_state;
+       int error;
 
-               rgd->rd_gl->gl_object = rgd;
-               rgd->rd_rg_vn = rgd->rd_gl->gl_vn - 1;
+       file_ra_state_init(&ra_state, inode->i_mapping);
+       for (sdp->sd_rgrps = 0;; sdp->sd_rgrps++) {
+               /* Ignore partials */
+               if ((sdp->sd_rgrps + 1) * sizeof(struct gfs2_rindex) >
+                   ip->i_di.di_size)
+                       break;
+               error = read_rindex_entry(ip, &ra_state);
+               if (error) {
+                       clear_rgrpdi(sdp);
+                       return error;
+               }
        }
 
        sdp->sd_rindex_vn = ip->i_gl->gl_vn;
-
        return 0;
-
- fail:
-       clear_rgrpdi(sdp);
-
-       return error;
 }
 
 /**
@@ -358,7 +633,7 @@ static int gfs2_ri_update(struct gfs2_inode *ip)
 
 int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh)
 {
-       struct gfs2_inode *ip = sdp->sd_rindex->u.generic_ip;
+       struct gfs2_inode *ip = GFS2_I(sdp->sd_rindex);
        struct gfs2_glock *gl = ip->i_gl;
        int error;
 
@@ -380,6 +655,28 @@ int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh)
        return error;
 }
 
+static void gfs2_rgrp_in(struct gfs2_rgrp_host *rg, const void *buf)
+{
+       const struct gfs2_rgrp *str = buf;
+
+       rg->rg_flags = be32_to_cpu(str->rg_flags);
+       rg->rg_free = be32_to_cpu(str->rg_free);
+       rg->rg_dinodes = be32_to_cpu(str->rg_dinodes);
+       rg->rg_igeneration = be64_to_cpu(str->rg_igeneration);
+}
+
+static void gfs2_rgrp_out(const struct gfs2_rgrp_host *rg, void *buf)
+{
+       struct gfs2_rgrp *str = buf;
+
+       str->rg_flags = cpu_to_be32(rg->rg_flags);
+       str->rg_free = cpu_to_be32(rg->rg_free);
+       str->rg_dinodes = cpu_to_be32(rg->rg_dinodes);
+       str->__pad = cpu_to_be32(0);
+       str->rg_igeneration = cpu_to_be64(rg->rg_igeneration);
+       memset(&str->rg_reserved, 0, sizeof(str->rg_reserved));
+}
+
 /**
  * gfs2_rgrp_bh_get - Read in a RG's header and bitmaps
  * @rgd: the struct gfs2_rgrpd describing the RG to read in
@@ -394,7 +691,7 @@ int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd)
 {
        struct gfs2_sbd *sdp = rgd->rd_sbd;
        struct gfs2_glock *gl = rgd->rd_gl;
-       unsigned int length = rgd->rd_ri.ri_length;
+       unsigned int length = rgd->rd_length;
        struct gfs2_bitmap *bi;
        unsigned int x, y;
        int error;
@@ -412,19 +709,17 @@ int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd)
 
        for (x = 0; x < length; x++) {
                bi = rgd->rd_bits + x;
-               error = gfs2_meta_read(gl, rgd->rd_ri.ri_addr + x, DIO_START,
-                                      &bi->bi_bh);
+               error = gfs2_meta_read(gl, rgd->rd_addr + x, 0, &bi->bi_bh);
                if (error)
                        goto fail;
        }
 
        for (y = length; y--;) {
                bi = rgd->rd_bits + y;
-               error = gfs2_meta_reread(sdp, bi->bi_bh, DIO_WAIT);
+               error = gfs2_meta_wait(sdp, bi->bi_bh);
                if (error)
                        goto fail;
-               if (gfs2_metatype_check(sdp, bi->bi_bh,
-                                       (y) ? GFS2_METATYPE_RB :
+               if (gfs2_metatype_check(sdp, bi->bi_bh, y ? GFS2_METATYPE_RB :
                                              GFS2_METATYPE_RG)) {
                        error = -EIO;
                        goto fail;
@@ -445,7 +740,7 @@ int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd)
 
        return 0;
 
- fail:
+fail:
        while (x--) {
                bi = rgd->rd_bits + x;
                brelse(bi->bi_bh);
@@ -476,7 +771,7 @@ void gfs2_rgrp_bh_hold(struct gfs2_rgrpd *rgd)
 void gfs2_rgrp_bh_put(struct gfs2_rgrpd *rgd)
 {
        struct gfs2_sbd *sdp = rgd->rd_sbd;
-       int x, length = rgd->rd_ri.ri_length;
+       int x, length = rgd->rd_length;
 
        spin_lock(&sdp->sd_rindex_spin);
        gfs2_assert_warn(rgd->rd_sbd, rgd->rd_bh_count);
@@ -499,7 +794,7 @@ void gfs2_rgrp_bh_put(struct gfs2_rgrpd *rgd)
 void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd)
 {
        struct gfs2_sbd *sdp = rgd->rd_sbd;
-       unsigned int length = rgd->rd_ri.ri_length;
+       unsigned int length = rgd->rd_length;
        unsigned int x;
 
        for (x = 0; x < length; x++) {
@@ -507,8 +802,7 @@ void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd)
                if (!bi->bi_clone)
                        continue;
                memcpy(bi->bi_clone + bi->bi_offset,
-                      bi->bi_bh->b_data + bi->bi_offset,
-                      bi->bi_len);
+                      bi->bi_bh->b_data + bi->bi_offset, bi->bi_len);
        }
 
        spin_lock(&sdp->sd_rindex_spin);
@@ -525,22 +819,9 @@ void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd)
 
 struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip)
 {
-       struct gfs2_alloc *al = &ip->i_alloc;
-
-       /* FIXME: Should assert that the correct locks are held here... */
-       memset(al, 0, sizeof(*al));
-       return al;
-}
-
-/**
- * gfs2_alloc_put - throw away the struct gfs2_alloc for an inode
- * @ip: the inode
- *
- */
-
-void gfs2_alloc_put(struct gfs2_inode *ip)
-{
-       return;
+       BUG_ON(ip->i_alloc != NULL);
+       ip->i_alloc = kzalloc(sizeof(struct gfs2_alloc), GFP_KERNEL);
+       return ip->i_alloc;
 }
 
 /**
@@ -549,8 +830,6 @@ void gfs2_alloc_put(struct gfs2_inode *ip)
  * @al: the struct gfs2_alloc structure describing the reservation
  *
  * If there's room for the requested blocks to be allocated from the RG:
- *   Sets the $al_reserved_data field in @al.
- *   Sets the $al_reserved_meta field in @al.
  *   Sets the $al_rgd field in @al.
  *
  * Returns: 1 on success (it fits), 0 on failure (it doesn't fit)
@@ -561,6 +840,9 @@ static int try_rgrp_fit(struct gfs2_rgrpd *rgd, struct gfs2_alloc *al)
        struct gfs2_sbd *sdp = rgd->rd_sbd;
        int ret = 0;
 
+       if (rgd->rd_rg.rg_flags & GFS2_RGF_NOALLOC)
+               return 0;
+
        spin_lock(&sdp->sd_rindex_spin);
        if (rgd->rd_free_clone >= al->al_requested) {
                al->al_rgd = rgd;
@@ -572,6 +854,46 @@ static int try_rgrp_fit(struct gfs2_rgrpd *rgd, struct gfs2_alloc *al)
 }
 
 /**
+ * try_rgrp_unlink - Look for any unlinked, allocated, but unused inodes
+ * @rgd: The rgrp
+ *
+ * Returns: The inode, if one has been found
+ */
+
+static struct inode *try_rgrp_unlink(struct gfs2_rgrpd *rgd, u64 *last_unlinked)
+{
+       struct inode *inode;
+       u32 goal = 0, block;
+       u64 no_addr;
+       struct gfs2_sbd *sdp = rgd->rd_sbd;
+
+       for(;;) {
+               if (goal >= rgd->rd_data)
+                       break;
+               down_write(&sdp->sd_log_flush_lock);
+               block = rgblk_search(rgd, goal, GFS2_BLKST_UNLINKED,
+                                    GFS2_BLKST_UNLINKED);
+               up_write(&sdp->sd_log_flush_lock);
+               if (block == BFITNOENT)
+                       break;
+               /* rgblk_search can return a block < goal, so we need to
+                  keep it marching forward. */
+               no_addr = block + rgd->rd_data0;
+               goal++;
+               if (*last_unlinked != NO_BLOCK && no_addr <= *last_unlinked)
+                       continue;
+               *last_unlinked = no_addr;
+               inode = gfs2_inode_lookup(rgd->rd_sbd->sd_vfs, DT_UNKNOWN,
+                                         no_addr, -1, 1);
+               if (!IS_ERR(inode))
+                       return inode;
+       }
+
+       rgd->rd_flags &= ~GFS2_RDF_CHECK;
+       return NULL;
+}
+
+/**
  * recent_rgrp_first - get first RG from "recent" list
  * @sdp: The GFS2 superblock
  * @rglast: address of the rgrp used last
@@ -580,7 +902,7 @@ static int try_rgrp_fit(struct gfs2_rgrpd *rgd, struct gfs2_alloc *al)
  */
 
 static struct gfs2_rgrpd *recent_rgrp_first(struct gfs2_sbd *sdp,
-                                           uint64_t rglast)
+                                           u64 rglast)
 {
        struct gfs2_rgrpd *rgd = NULL;
 
@@ -593,17 +915,15 @@ static struct gfs2_rgrpd *recent_rgrp_first(struct gfs2_sbd *sdp,
                goto first;
 
        list_for_each_entry(rgd, &sdp->sd_rindex_recent_list, rd_recent) {
-               if (rgd->rd_ri.ri_addr == rglast)
+               if (rgd->rd_addr == rglast)
                        goto out;
        }
 
- first:
+first:
        rgd = list_entry(sdp->sd_rindex_recent_list.next, struct gfs2_rgrpd,
                         rd_recent);
-
- out:
+out:
        spin_unlock(&sdp->sd_rindex_spin);
-
        return rgd;
 }
 
@@ -645,9 +965,8 @@ static struct gfs2_rgrpd *recent_rgrp_next(struct gfs2_rgrpd *cur_rgd,
        if (!list_empty(head))
                rgd = list_entry(head->next, struct gfs2_rgrpd, rd_recent);
 
- out:
+out:
        spin_unlock(&sdp->sd_rindex_spin);
-
        return rgd;
 }
 
@@ -675,7 +994,7 @@ static void recent_rgrp_add(struct gfs2_rgrpd *new_rgd)
        }
        list_add_tail(&new_rgd->rd_recent, &sdp->sd_rindex_recent_list);
 
- out:
+out:
        spin_unlock(&sdp->sd_rindex_spin);
 }
 
@@ -699,8 +1018,7 @@ static struct gfs2_rgrpd *forward_rgrp_get(struct gfs2_sbd *sdp)
                if (sdp->sd_rgrps >= journals)
                        rg = sdp->sd_rgrps * sdp->sd_jdesc->jd_jid / journals;
 
-               for (x = 0, rgd = gfs2_rgrpd_get_first(sdp);
-                    x < rg;
+               for (x = 0, rgd = gfs2_rgrpd_get_first(sdp); x < rg;
                     x++, rgd = gfs2_rgrpd_get_next(rgd))
                        /* Do Nothing */;
 
@@ -736,29 +1054,41 @@ static void forward_rgrp_set(struct gfs2_sbd *sdp, struct gfs2_rgrpd *rgd)
  * Returns: errno
  */
 
-static int get_local_rgrp(struct gfs2_inode *ip)
+static struct inode *get_local_rgrp(struct gfs2_inode *ip, u64 *last_unlinked)
 {
-       struct gfs2_sbd *sdp = ip->i_sbd;
+       struct inode *inode = NULL;
+       struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
        struct gfs2_rgrpd *rgd, *begin = NULL;
-       struct gfs2_alloc *al = &ip->i_alloc;
+       struct gfs2_alloc *al = ip->i_alloc;
        int flags = LM_FLAG_TRY;
        int skipped = 0;
        int loops = 0;
-       int error;
+       int error, rg_locked;
 
        /* Try recently successful rgrps */
 
        rgd = recent_rgrp_first(sdp, ip->i_last_rg_alloc);
 
        while (rgd) {
-               error = gfs2_glock_nq_init(rgd->rd_gl,
-                                         LM_ST_EXCLUSIVE, LM_FLAG_TRY,
-                                         &al->al_rgd_gh);
+               rg_locked = 0;
+
+               if (gfs2_glock_is_locked_by_me(rgd->rd_gl)) {
+                       rg_locked = 1;
+                       error = 0;
+               } else {
+                       error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE,
+                                                  LM_FLAG_TRY, &al->al_rgd_gh);
+               }
                switch (error) {
                case 0:
                        if (try_rgrp_fit(rgd, al))
                                goto out;
-                       gfs2_glock_dq_uninit(&al->al_rgd_gh);
+                       if (rgd->rd_flags & GFS2_RDF_CHECK)
+                               inode = try_rgrp_unlink(rgd, last_unlinked);
+                       if (!rg_locked)
+                               gfs2_glock_dq_uninit(&al->al_rgd_gh);
+                       if (inode)
+                               return inode;
                        rgd = recent_rgrp_next(rgd, 1);
                        break;
 
@@ -767,7 +1097,7 @@ static int get_local_rgrp(struct gfs2_inode *ip)
                        break;
 
                default:
-                       return error;
+                       return ERR_PTR(error);
                }
        }
 
@@ -776,14 +1106,25 @@ static int get_local_rgrp(struct gfs2_inode *ip)
        begin = rgd = forward_rgrp_get(sdp);
 
        for (;;) {
-               error = gfs2_glock_nq_init(rgd->rd_gl,
-                                         LM_ST_EXCLUSIVE, flags,
-                                         &al->al_rgd_gh);
+               rg_locked = 0;
+
+               if (gfs2_glock_is_locked_by_me(rgd->rd_gl)) {
+                       rg_locked = 1;
+                       error = 0;
+               } else {
+                       error = gfs2_glock_nq_init(rgd->rd_gl, LM_ST_EXCLUSIVE, flags,
+                                                  &al->al_rgd_gh);
+               }
                switch (error) {
                case 0:
                        if (try_rgrp_fit(rgd, al))
                                goto out;
-                       gfs2_glock_dq_uninit(&al->al_rgd_gh);
+                       if (rgd->rd_flags & GFS2_RDF_CHECK)
+                               inode = try_rgrp_unlink(rgd, last_unlinked);
+                       if (!rg_locked)
+                               gfs2_glock_dq_uninit(&al->al_rgd_gh);
+                       if (inode)
+                               return inode;
                        break;
 
                case GLR_TRYFAILED:
@@ -791,7 +1132,7 @@ static int get_local_rgrp(struct gfs2_inode *ip)
                        break;
 
                default:
-                       return error;
+                       return ERR_PTR(error);
                }
 
                rgd = gfs2_rgrpd_get_next(rgd);
@@ -799,14 +1140,18 @@ static int get_local_rgrp(struct gfs2_inode *ip)
                        rgd = gfs2_rgrpd_get_first(sdp);
 
                if (rgd == begin) {
-                       if (++loops >= 2 || !skipped)
-                               return -ENOSPC;
+                       if (++loops >= 3)
+                               return ERR_PTR(-ENOSPC);
+                       if (!skipped)
+                               loops++;
                        flags = 0;
+                       if (loops == 2)
+                               gfs2_log_flush(sdp, NULL);
                }
        }
 
- out:
-       ip->i_last_rg_alloc = rgd->rd_ri.ri_addr;
+out:
+       ip->i_last_rg_alloc = rgd->rd_addr;
 
        if (begin) {
                recent_rgrp_add(rgd);
@@ -816,7 +1161,7 @@ static int get_local_rgrp(struct gfs2_inode *ip)
                forward_rgrp_set(sdp, rgd);
        }
 
-       return 0;
+       return NULL;
 }
 
 /**
@@ -828,21 +1173,35 @@ static int get_local_rgrp(struct gfs2_inode *ip)
 
 int gfs2_inplace_reserve_i(struct gfs2_inode *ip, char *file, unsigned int line)
 {
-       struct gfs2_sbd *sdp = ip->i_sbd;
-       struct gfs2_alloc *al = &ip->i_alloc;
-       int error;
+       struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+       struct gfs2_alloc *al = ip->i_alloc;
+       struct inode *inode;
+       int error = 0;
+       u64 last_unlinked = NO_BLOCK;
 
        if (gfs2_assert_warn(sdp, al->al_requested))
                return -EINVAL;
 
-       error = gfs2_rindex_hold(sdp, &al->al_ri_gh);
+try_again:
+       /* We need to hold the rindex unless the inode we're using is
+          the rindex itself, in which case it's already held. */
+       if (ip != GFS2_I(sdp->sd_rindex))
+               error = gfs2_rindex_hold(sdp, &al->al_ri_gh);
+       else if (!sdp->sd_rgrps) /* We may not have the rindex read in, so: */
+               error = gfs2_ri_update_special(ip);
+
        if (error)
                return error;
 
-       error = get_local_rgrp(ip);
-       if (error) {
-               gfs2_glock_dq_uninit(&al->al_ri_gh);
-               return error;
+       inode = get_local_rgrp(ip, &last_unlinked);
+       if (inode) {
+               if (ip != GFS2_I(sdp->sd_rindex))
+                       gfs2_glock_dq_uninit(&al->al_ri_gh);
+               if (IS_ERR(inode))
+                       return PTR_ERR(inode);
+               iput(inode);
+               gfs2_log_flush(sdp, NULL);
+               goto try_again;
        }
 
        al->al_file = file;
@@ -860,8 +1219,8 @@ int gfs2_inplace_reserve_i(struct gfs2_inode *ip, char *file, unsigned int line)
 
 void gfs2_inplace_release(struct gfs2_inode *ip)
 {
-       struct gfs2_sbd *sdp = ip->i_sbd;
-       struct gfs2_alloc *al = &ip->i_alloc;
+       struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+       struct gfs2_alloc *al = ip->i_alloc;
 
        if (gfs2_assert_warn(sdp, al->al_alloced <= al->al_requested) == -1)
                fs_warn(sdp, "al_alloced = %u, al_requested = %u "
@@ -870,8 +1229,10 @@ void gfs2_inplace_release(struct gfs2_inode *ip)
                             al->al_line);
 
        al->al_rgd = NULL;
-       gfs2_glock_dq_uninit(&al->al_rgd_gh);
-       gfs2_glock_dq_uninit(&al->al_ri_gh);
+       if (al->al_rgd_gh.gh_gl)
+               gfs2_glock_dq_uninit(&al->al_rgd_gh);
+       if (ip != GFS2_I(sdp->sd_rindex))
+               gfs2_glock_dq_uninit(&al->al_ri_gh);
 }
 
 /**
@@ -882,15 +1243,15 @@ void gfs2_inplace_release(struct gfs2_inode *ip)
  * Returns: The block type (GFS2_BLKST_*)
  */
 
-unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, uint64_t block)
+unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block)
 {
        struct gfs2_bitmap *bi = NULL;
-       uint32_t length, rgrp_block, buf_block;
+       u32 length, rgrp_block, buf_block;
        unsigned int buf;
        unsigned char type;
 
-       length = rgd->rd_ri.ri_length;
-       rgrp_block = block - rgd->rd_ri.ri_data0;
+       length = rgd->rd_length;
+       rgrp_block = block - rgd->rd_data0;
 
        for (buf = 0; buf < length; buf++) {
                bi = rgd->rd_bits + buf;
@@ -901,8 +1262,7 @@ unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, uint64_t block)
        gfs2_assert(rgd->rd_sbd, buf < length);
        buf_block = rgrp_block - bi->bi_start * GFS2_NBBY;
 
-       type = gfs2_testbit(rgd,
-                          bi->bi_bh->b_data + bi->bi_offset,
+       type = gfs2_testbit(rgd, bi->bi_bh->b_data + bi->bi_offset,
                           bi->bi_len, buf_block);
 
        return type;
@@ -929,12 +1289,12 @@ unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, uint64_t block)
  * Returns:  the block number allocated
  */
 
-static uint32_t rgblk_search(struct gfs2_rgrpd *rgd, uint32_t goal,
-                            unsigned char old_state, unsigned char new_state)
+static u32 rgblk_search(struct gfs2_rgrpd *rgd, u32 goal,
+                       unsigned char old_state, unsigned char new_state)
 {
        struct gfs2_bitmap *bi = NULL;
-       uint32_t length = rgd->rd_ri.ri_length;
-       uint32_t blk = 0;
+       u32 length = rgd->rd_length;
+       u32 blk = 0;
        unsigned int buf, x;
 
        /* Find bitmap block that contains bits for goal block */
@@ -955,12 +1315,13 @@ static uint32_t rgblk_search(struct gfs2_rgrpd *rgd, uint32_t goal,
           allocatable block anywhere else, we want to be able wrap around and
           search in the first part of our first-searched bit block.  */
        for (x = 0; x <= length; x++) {
-               if (bi->bi_clone)
-                       blk = gfs2_bitfit(rgd, bi->bi_clone + bi->bi_offset,
+               /* The GFS2_BLKST_UNLINKED state doesn't apply to the clone
+                  bitmaps, so we must search the originals for that. */
+               if (old_state != GFS2_BLKST_UNLINKED && bi->bi_clone)
+                       blk = gfs2_bitfit(bi->bi_clone + bi->bi_offset,
                                          bi->bi_len, goal, old_state);
                else
-                       blk = gfs2_bitfit(rgd,
-                                         bi->bi_bh->b_data + bi->bi_offset,
+                       blk = gfs2_bitfit(bi->bi_bh->b_data + bi->bi_offset,
                                          bi->bi_len, goal, old_state);
                if (blk != BFITNOENT)
                        break;
@@ -971,17 +1332,16 @@ static uint32_t rgblk_search(struct gfs2_rgrpd *rgd, uint32_t goal,
                goal = 0;
        }
 
-       if (gfs2_assert_withdraw(rgd->rd_sbd, x <= length))
-               blk = 0;
-
-       gfs2_trans_add_bh(rgd->rd_gl, bi->bi_bh, 1);
-       gfs2_setbit(rgd, bi->bi_bh->b_data + bi->bi_offset,
-                   bi->bi_len, blk, new_state);
-       if (bi->bi_clone)
-               gfs2_setbit(rgd, bi->bi_clone + bi->bi_offset,
+       if (blk != BFITNOENT && old_state != new_state) {
+               gfs2_trans_add_bh(rgd->rd_gl, bi->bi_bh, 1);
+               gfs2_setbit(rgd, bi->bi_bh->b_data + bi->bi_offset,
                            bi->bi_len, blk, new_state);
+               if (bi->bi_clone)
+                       gfs2_setbit(rgd, bi->bi_clone + bi->bi_offset,
+                                   bi->bi_len, blk, new_state);
+       }
 
-       return bi->bi_start * GFS2_NBBY + blk;
+       return (blk == BFITNOENT) ? blk : (bi->bi_start * GFS2_NBBY) + blk;
 }
 
 /**
@@ -994,24 +1354,24 @@ static uint32_t rgblk_search(struct gfs2_rgrpd *rgd, uint32_t goal,
  * Returns:  Resource group containing the block(s)
  */
 
-static struct gfs2_rgrpd *rgblk_free(struct gfs2_sbd *sdp, uint64_t bstart,
-                                    uint32_t blen, unsigned char new_state)
+static struct gfs2_rgrpd *rgblk_free(struct gfs2_sbd *sdp, u64 bstart,
+                                    u32 blen, unsigned char new_state)
 {
        struct gfs2_rgrpd *rgd;
        struct gfs2_bitmap *bi = NULL;
-       uint32_t length, rgrp_blk, buf_blk;
+       u32 length, rgrp_blk, buf_blk;
        unsigned int buf;
 
        rgd = gfs2_blk2rgrpd(sdp, bstart);
        if (!rgd) {
                if (gfs2_consist(sdp))
-                       fs_err(sdp, "block = %llu\n", bstart);
+                       fs_err(sdp, "block = %llu\n", (unsigned long long)bstart);
                return NULL;
        }
 
-       length = rgd->rd_ri.ri_length;
+       length = rgd->rd_length;
 
-       rgrp_blk = bstart - rgd->rd_ri.ri_data0;
+       rgrp_blk = bstart - rgd->rd_data0;
 
        while (blen--) {
                for (buf = 0; buf < length; buf++) {
@@ -1027,14 +1387,13 @@ static struct gfs2_rgrpd *rgblk_free(struct gfs2_sbd *sdp, uint64_t bstart,
 
                if (!bi->bi_clone) {
                        bi->bi_clone = kmalloc(bi->bi_bh->b_size,
-                                              GFP_KERNEL | __GFP_NOFAIL);
+                                              GFP_NOFS | __GFP_NOFAIL);
                        memcpy(bi->bi_clone + bi->bi_offset,
                               bi->bi_bh->b_data + bi->bi_offset,
                               bi->bi_len);
                }
                gfs2_trans_add_bh(rgd->rd_gl, bi->bi_bh, 1);
-               gfs2_setbit(rgd,
-                           bi->bi_bh->b_data + bi->bi_offset,
+               gfs2_setbit(rgd, bi->bi_bh->b_data + bi->bi_offset,
                            bi->bi_len, buf_blk, new_state);
        }
 
@@ -1048,23 +1407,24 @@ static struct gfs2_rgrpd *rgblk_free(struct gfs2_sbd *sdp, uint64_t bstart,
  * Returns: the allocated block
  */
 
-uint64_t gfs2_alloc_data(struct gfs2_inode *ip)
+u64 gfs2_alloc_data(struct gfs2_inode *ip)
 {
-       struct gfs2_sbd *sdp = ip->i_sbd;
-       struct gfs2_alloc *al = &ip->i_alloc;
+       struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+       struct gfs2_alloc *al = ip->i_alloc;
        struct gfs2_rgrpd *rgd = al->al_rgd;
-       uint32_t goal, blk;
-       uint64_t block;
+       u32 goal, blk;
+       u64 block;
 
-       if (rgrp_contains_block(&rgd->rd_ri, ip->i_di.di_goal_data))
-               goal = ip->i_di.di_goal_data - rgd->rd_ri.ri_data0;
+       if (rgrp_contains_block(rgd, ip->i_di.di_goal_data))
+               goal = ip->i_di.di_goal_data - rgd->rd_data0;
        else
                goal = rgd->rd_last_alloc_data;
 
        blk = rgblk_search(rgd, goal, GFS2_BLKST_FREE, GFS2_BLKST_USED);
+       BUG_ON(blk == BFITNOENT);
        rgd->rd_last_alloc_data = blk;
 
-       block = rgd->rd_ri.ri_data0 + blk;
+       block = rgd->rd_data0 + blk;
        ip->i_di.di_goal_data = block;
 
        gfs2_assert_withdraw(sdp, rgd->rd_rg.rg_free);
@@ -1076,7 +1436,7 @@ uint64_t gfs2_alloc_data(struct gfs2_inode *ip)
        al->al_alloced++;
 
        gfs2_statfs_change(sdp, 0, -1, 0);
-       gfs2_quota_change(ip, +1, ip->i_di.di_uid, ip->i_di.di_gid);
+       gfs2_quota_change(ip, +1, ip->i_inode.i_uid, ip->i_inode.i_gid);
 
        spin_lock(&sdp->sd_rindex_spin);
        rgd->rd_free_clone--;
@@ -1092,23 +1452,24 @@ uint64_t gfs2_alloc_data(struct gfs2_inode *ip)
  * Returns: the allocated block
  */
 
-uint64_t gfs2_alloc_meta(struct gfs2_inode *ip)
+u64 gfs2_alloc_meta(struct gfs2_inode *ip)
 {
-       struct gfs2_sbd *sdp = ip->i_sbd;
-       struct gfs2_alloc *al = &ip->i_alloc;
+       struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+       struct gfs2_alloc *al = ip->i_alloc;
        struct gfs2_rgrpd *rgd = al->al_rgd;
-       uint32_t goal, blk;
-       uint64_t block;
+       u32 goal, blk;
+       u64 block;
 
-       if (rgrp_contains_block(&rgd->rd_ri, ip->i_di.di_goal_meta))
-               goal = ip->i_di.di_goal_meta - rgd->rd_ri.ri_data0;
+       if (rgrp_contains_block(rgd, ip->i_di.di_goal_meta))
+               goal = ip->i_di.di_goal_meta - rgd->rd_data0;
        else
                goal = rgd->rd_last_alloc_meta;
 
        blk = rgblk_search(rgd, goal, GFS2_BLKST_FREE, GFS2_BLKST_USED);
+       BUG_ON(blk == BFITNOENT);
        rgd->rd_last_alloc_meta = blk;
 
-       block = rgd->rd_ri.ri_data0 + blk;
+       block = rgd->rd_data0 + blk;
        ip->i_di.di_goal_meta = block;
 
        gfs2_assert_withdraw(sdp, rgd->rd_rg.rg_free);
@@ -1120,7 +1481,7 @@ uint64_t gfs2_alloc_meta(struct gfs2_inode *ip)
        al->al_alloced++;
 
        gfs2_statfs_change(sdp, 0, -1, 0);
-       gfs2_quota_change(ip, +1, ip->i_di.di_uid, ip->i_di.di_gid);
+       gfs2_quota_change(ip, +1, ip->i_inode.i_uid, ip->i_inode.i_gid);
        gfs2_trans_add_unrevoke(sdp, block);
 
        spin_lock(&sdp->sd_rindex_spin);
@@ -1137,25 +1498,26 @@ uint64_t gfs2_alloc_meta(struct gfs2_inode *ip)
  * Returns: the block allocated
  */
 
-uint64_t gfs2_alloc_di(struct gfs2_inode *dip)
+u64 gfs2_alloc_di(struct gfs2_inode *dip, u64 *generation)
 {
-       struct gfs2_sbd *sdp = dip->i_sbd;
-       struct gfs2_alloc *al = &dip->i_alloc;
+       struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
+       struct gfs2_alloc *al = dip->i_alloc;
        struct gfs2_rgrpd *rgd = al->al_rgd;
-       uint32_t blk;
-       uint64_t block;
+       u32 blk;
+       u64 block;
 
        blk = rgblk_search(rgd, rgd->rd_last_alloc_meta,
                           GFS2_BLKST_FREE, GFS2_BLKST_DINODE);
+       BUG_ON(blk == BFITNOENT);
 
        rgd->rd_last_alloc_meta = blk;
 
-       block = rgd->rd_ri.ri_data0 + blk;
+       block = rgd->rd_data0 + blk;
 
        gfs2_assert_withdraw(sdp, rgd->rd_rg.rg_free);
        rgd->rd_rg.rg_free--;
        rgd->rd_rg.rg_dinodes++;
-
+       *generation = rgd->rd_rg.rg_igeneration++;
        gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
        gfs2_rgrp_out(&rgd->rd_rg, rgd->rd_bits[0].bi_bh->b_data);
 
@@ -1179,9 +1541,9 @@ uint64_t gfs2_alloc_di(struct gfs2_inode *dip)
  *
  */
 
-void gfs2_free_data(struct gfs2_inode *ip, uint64_t bstart, uint32_t blen)
+void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen)
 {
-       struct gfs2_sbd *sdp = ip->i_sbd;
+       struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
        struct gfs2_rgrpd *rgd;
 
        rgd = rgblk_free(sdp, bstart, blen, GFS2_BLKST_FREE);
@@ -1196,8 +1558,7 @@ void gfs2_free_data(struct gfs2_inode *ip, uint64_t bstart, uint32_t blen)
        gfs2_trans_add_rg(rgd);
 
        gfs2_statfs_change(sdp, 0, +blen, 0);
-       gfs2_quota_change(ip, -(int64_t)blen,
-                        ip->i_di.di_uid, ip->i_di.di_gid);
+       gfs2_quota_change(ip, -(s64)blen, ip->i_inode.i_uid, ip->i_inode.i_gid);
 }
 
 /**
@@ -1208,9 +1569,9 @@ void gfs2_free_data(struct gfs2_inode *ip, uint64_t bstart, uint32_t blen)
  *
  */
 
-void gfs2_free_meta(struct gfs2_inode *ip, uint64_t bstart, uint32_t blen)
+void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen)
 {
-       struct gfs2_sbd *sdp = ip->i_sbd;
+       struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
        struct gfs2_rgrpd *rgd;
 
        rgd = rgblk_free(sdp, bstart, blen, GFS2_BLKST_FREE);
@@ -1225,12 +1586,26 @@ void gfs2_free_meta(struct gfs2_inode *ip, uint64_t bstart, uint32_t blen)
        gfs2_trans_add_rg(rgd);
 
        gfs2_statfs_change(sdp, 0, +blen, 0);
-       gfs2_quota_change(ip, -(int64_t)blen,
-                        ip->i_di.di_uid, ip->i_di.di_gid);
+       gfs2_quota_change(ip, -(s64)blen, ip->i_inode.i_uid, ip->i_inode.i_gid);
        gfs2_meta_wipe(ip, bstart, blen);
 }
 
-void gfs2_free_uninit_di(struct gfs2_rgrpd *rgd, uint64_t blkno)
+void gfs2_unlink_di(struct inode *inode)
+{
+       struct gfs2_inode *ip = GFS2_I(inode);
+       struct gfs2_sbd *sdp = GFS2_SB(inode);
+       struct gfs2_rgrpd *rgd;
+       u64 blkno = ip->i_no_addr;
+
+       rgd = rgblk_free(sdp, blkno, 1, GFS2_BLKST_UNLINKED);
+       if (!rgd)
+               return;
+       gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
+       gfs2_rgrp_out(&rgd->rd_rg, rgd->rd_bits[0].bi_bh->b_data);
+       gfs2_trans_add_rg(rgd);
+}
+
+static void gfs2_free_uninit_di(struct gfs2_rgrpd *rgd, u64 blkno)
 {
        struct gfs2_sbd *sdp = rgd->rd_sbd;
        struct gfs2_rgrpd *tmp_rgd;
@@ -1252,18 +1627,12 @@ void gfs2_free_uninit_di(struct gfs2_rgrpd *rgd, uint64_t blkno)
        gfs2_trans_add_rg(rgd);
 }
 
-/**
- * gfs2_free_uninit_di - free a dinode block
- * @rgd: the resource group that contains the dinode
- * @ip: the inode
- *
- */
 
 void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip)
 {
-       gfs2_free_uninit_di(rgd, ip->i_num.no_addr);
-       gfs2_quota_change(ip, -1, ip->i_di.di_uid, ip->i_di.di_gid);
-       gfs2_meta_wipe(ip, ip->i_num.no_addr, 1);
+       gfs2_free_uninit_di(rgd, ip->i_no_addr);
+       gfs2_quota_change(ip, -1, ip->i_inode.i_uid, ip->i_inode.i_gid);
+       gfs2_meta_wipe(ip, ip->i_no_addr, 1);
 }
 
 /**
@@ -1279,7 +1648,7 @@ void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip)
  */
 
 void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist,
-                   uint64_t block)
+                   u64 block)
 {
        struct gfs2_rgrpd *rgd;
        struct gfs2_rgrpd **tmp;
@@ -1292,7 +1661,7 @@ void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist,
        rgd = gfs2_blk2rgrpd(sdp, block);
        if (!rgd) {
                if (gfs2_consist(sdp))
-                       fs_err(sdp, "block = %llu\n", block);
+                       fs_err(sdp, "block = %llu\n", (unsigned long long)block);
                return;
        }
 
@@ -1304,7 +1673,7 @@ void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist,
                new_space = rlist->rl_space + 10;
 
                tmp = kcalloc(new_space, sizeof(struct gfs2_rgrpd *),
-                             GFP_KERNEL | __GFP_NOFAIL);
+                             GFP_NOFS | __GFP_NOFAIL);
 
                if (rlist->rl_rgd) {
                        memcpy(tmp, rlist->rl_rgd,
@@ -1336,7 +1705,7 @@ void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state,
        unsigned int x;
 
        rlist->rl_ghs = kcalloc(rlist->rl_rgrps, sizeof(struct gfs2_holder),
-                               GFP_KERNEL | __GFP_NOFAIL);
+                               GFP_NOFS | __GFP_NOFAIL);
        for (x = 0; x < rlist->rl_rgrps; x++)
                gfs2_holder_init(rlist->rl_rgd[x]->rd_gl,
                                state, flags,