GFS2: print glock numbers in hex
[safe/jmp/linux-2.6] / fs / gfs2 / dir.c
index ca23c8b..25fddc1 100644 (file)
@@ -36,7 +36,7 @@
  * the block.  In leaves, they begin at offset sizeof(struct gfs2_leaf) from the
  * beginning of the leaf block. The dirents reside in leaves when
  *
- * dip->i_di.di_flags & GFS2_DIF_EXHASH is true
+ * dip->i_diskflags & GFS2_DIF_EXHASH is true
  *
  * Otherwise, the dirents are "linear", within a single stuffed dinode block.
  *
@@ -53,7 +53,6 @@
  * but never before the maximum hash table size has been reached.
  */
 
-#include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/buffer_head.h>
@@ -61,7 +60,6 @@
 #include <linux/gfs2_ondisk.h>
 #include <linux/crc32.h>
 #include <linux/vmalloc.h>
-#include <linux/lm_interface.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -129,9 +127,9 @@ static int gfs2_dir_write_stuffed(struct gfs2_inode *ip, const char *buf,
 
        gfs2_trans_add_bh(ip->i_gl, dibh, 1);
        memcpy(dibh->b_data + offset + sizeof(struct gfs2_dinode), buf, size);
-       if (ip->i_di.di_size < offset + size)
-               ip->i_di.di_size = offset + size;
-       ip->i_inode.i_mtime.tv_sec = ip->i_inode.i_ctime.tv_sec = get_seconds();
+       if (ip->i_disksize < offset + size)
+               ip->i_disksize = offset + size;
+       ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
        gfs2_dinode_out(ip, dibh->b_data);
 
        brelse(dibh);
@@ -160,6 +158,7 @@ static int gfs2_dir_write_data(struct gfs2_inode *ip, const char *buf,
        unsigned int o;
        int copied = 0;
        int error = 0;
+       int new = 0;
 
        if (!size)
                return 0;
@@ -184,7 +183,6 @@ static int gfs2_dir_write_data(struct gfs2_inode *ip, const char *buf,
        while (copied < size) {
                unsigned int amount;
                struct buffer_head *bh;
-               int new = 0;
 
                amount = size - copied;
                if (amount > sdp->sd_sb.sb_bsize - o)
@@ -227,9 +225,9 @@ out:
        if (error)
                return error;
 
-       if (ip->i_di.di_size < offset + copied)
-               ip->i_di.di_size = offset + copied;
-       ip->i_inode.i_mtime.tv_sec = ip->i_inode.i_ctime.tv_sec = get_seconds();
+       if (ip->i_disksize < offset + copied)
+               ip->i_disksize = offset + copied;
+       ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
 
        gfs2_trans_add_bh(ip->i_gl, dibh, 1);
        gfs2_dinode_out(ip, dibh->b_data);
@@ -278,11 +276,11 @@ static int gfs2_dir_read_data(struct gfs2_inode *ip, char *buf, u64 offset,
        int copied = 0;
        int error = 0;
 
-       if (offset >= ip->i_di.di_size)
+       if (offset >= ip->i_disksize)
                return 0;
 
-       if (offset + size > ip->i_di.di_size)
-               size = ip->i_di.di_size - offset;
+       if (offset + size > ip->i_disksize)
+               size = ip->i_disksize - offset;
 
        if (!size)
                return 0;
@@ -340,10 +338,15 @@ fail:
        return (copied) ? copied : error;
 }
 
+static inline int gfs2_dirent_sentinel(const struct gfs2_dirent *dent)
+{
+       return dent->de_inum.no_addr == 0 || dent->de_inum.no_formal_ino == 0;
+}
+
 static inline int __gfs2_dirent_find(const struct gfs2_dirent *dent,
                                     const struct qstr *name, int ret)
 {
-       if (dent->de_inum.no_addr != 0 &&
+       if (!gfs2_dirent_sentinel(dent) &&
            be32_to_cpu(dent->de_hash) == name->hash &&
            be16_to_cpu(dent->de_name_len) == name->len &&
            memcmp(dent+1, name->name, name->len) == 0)
@@ -388,7 +391,7 @@ static int gfs2_dirent_find_space(const struct gfs2_dirent *dent,
        unsigned actual = GFS2_DIRENT_SIZE(be16_to_cpu(dent->de_name_len));
        unsigned totlen = be16_to_cpu(dent->de_rec_len);
 
-       if (!dent->de_inum.no_addr)
+       if (gfs2_dirent_sentinel(dent))
                actual = GFS2_DIRENT_SIZE(0);
        if (totlen - actual >= required)
                return 1;
@@ -405,7 +408,7 @@ static int gfs2_dirent_gather(const struct gfs2_dirent *dent,
                              void *opaque)
 {
        struct dirent_gather *g = opaque;
-       if (dent->de_inum.no_addr) {
+       if (!gfs2_dirent_sentinel(dent)) {
                g->pdent[g->offset++] = dent;
        }
        return 0;
@@ -433,10 +436,10 @@ static int gfs2_check_dirent(struct gfs2_dirent *dent, unsigned int offset,
        if (unlikely(offset + size > len))
                goto error;
        msg = "zero inode number";
-       if (unlikely(!first && !dent->de_inum.no_addr))
+       if (unlikely(!first && gfs2_dirent_sentinel(dent)))
                goto error;
        msg = "name length is greater than space in dirent";
-       if (dent->de_inum.no_addr &&
+       if (!gfs2_dirent_sentinel(dent) &&
            unlikely(sizeof(struct gfs2_dirent)+be16_to_cpu(dent->de_name_len) >
                     size))
                goto error;
@@ -522,38 +525,6 @@ consist_inode:
        return ERR_PTR(-EIO);
 }
 
-
-/**
- * dirent_first - Return the first dirent
- * @dip: the directory
- * @bh: The buffer
- * @dent: Pointer to list of dirents
- *
- * return first dirent whether bh points to leaf or stuffed dinode
- *
- * Returns: IS_LEAF, IS_DINODE, or -errno
- */
-
-static int dirent_first(struct gfs2_inode *dip, struct buffer_head *bh,
-                       struct gfs2_dirent **dent)
-{
-       struct gfs2_meta_header *h = (struct gfs2_meta_header *)bh->b_data;
-
-       if (be32_to_cpu(h->mh_type) == GFS2_METATYPE_LF) {
-               if (gfs2_meta_check(GFS2_SB(&dip->i_inode), bh))
-                       return -EIO;
-               *dent = (struct gfs2_dirent *)(bh->b_data +
-                                              sizeof(struct gfs2_leaf));
-               return IS_LEAF;
-       } else {
-               if (gfs2_metatype_check(GFS2_SB(&dip->i_inode), bh, GFS2_METATYPE_DI))
-                       return -EIO;
-               *dent = (struct gfs2_dirent *)(bh->b_data +
-                                              sizeof(struct gfs2_dinode));
-               return IS_DINODE;
-       }
-}
-
 static int dirent_check_reclen(struct gfs2_inode *dip,
                               const struct gfs2_dirent *d, const void *end_p)
 {
@@ -598,7 +569,7 @@ static int dirent_next(struct gfs2_inode *dip, struct buffer_head *bh,
                return ret;
 
         /* Only the first dent could ever have de_inum.no_addr == 0 */
-       if (!tmp->de_inum.no_addr) {
+       if (gfs2_dirent_sentinel(tmp)) {
                gfs2_consist_inode(dip);
                return -EIO;
        }
@@ -621,7 +592,7 @@ static void dirent_del(struct gfs2_inode *dip, struct buffer_head *bh,
 {
        u16 cur_rec_len, prev_rec_len;
 
-       if (!cur->de_inum.no_addr) {
+       if (gfs2_dirent_sentinel(cur)) {
                gfs2_consist_inode(dip);
                return;
        }
@@ -633,7 +604,8 @@ static void dirent_del(struct gfs2_inode *dip, struct buffer_head *bh,
           out the inode number and return.  */
 
        if (!prev) {
-               cur->de_inum.no_addr = 0;       /* No endianess worries */
+               cur->de_inum.no_addr = 0;
+               cur->de_inum.no_formal_ino = 0;
                return;
        }
 
@@ -664,7 +636,7 @@ static struct gfs2_dirent *gfs2_init_dirent(struct inode *inode,
        struct gfs2_dirent *ndent;
        unsigned offset = 0, totlen;
 
-       if (dent->de_inum.no_addr)
+       if (!gfs2_dirent_sentinel(dent))
                offset = GFS2_DIRENT_SIZE(be16_to_cpu(dent->de_name_len));
        totlen = be16_to_cpu(dent->de_rec_len);
        BUG_ON(offset + name->len > totlen);
@@ -750,17 +722,17 @@ static struct gfs2_dirent *gfs2_dirent_search(struct inode *inode,
        struct gfs2_inode *ip = GFS2_I(inode);
        int error;
 
-       if (ip->i_di.di_flags & GFS2_DIF_EXHASH) {
+       if (ip->i_diskflags & GFS2_DIF_EXHASH) {
                struct gfs2_leaf *leaf;
-               unsigned hsize = 1 << ip->i_di.di_depth;
+               unsigned hsize = 1 << ip->i_depth;
                unsigned index;
                u64 ln;
-               if (hsize * sizeof(u64) != ip->i_di.di_size) {
+               if (hsize * sizeof(u64) != ip->i_disksize) {
                        gfs2_consist_inode(ip);
                        return ERR_PTR(-EIO);
                }
 
-               index = name->hash >> (32 - ip->i_di.di_depth);
+               index = name->hash >> (32 - ip->i_depth);
                error = get_first_leaf(ip, index, &bh);
                if (error)
                        return ERR_PTR(error);
@@ -798,14 +770,22 @@ got_dent:
 static struct gfs2_leaf *new_leaf(struct inode *inode, struct buffer_head **pbh, u16 depth)
 {
        struct gfs2_inode *ip = GFS2_I(inode);
-       u64 bn = gfs2_alloc_meta(ip);
-       struct buffer_head *bh = gfs2_meta_new(ip->i_gl, bn);
+       unsigned int n = 1;
+       u64 bn;
+       int error;
+       struct buffer_head *bh;
        struct gfs2_leaf *leaf;
        struct gfs2_dirent *dent;
        struct qstr name = { .name = "", .len = 0, .hash = 0 };
+
+       error = gfs2_alloc_block(ip, &bn, &n);
+       if (error)
+               return NULL;
+       bh = gfs2_meta_new(ip->i_gl, bn);
        if (!bh)
                return NULL;
 
+       gfs2_trans_add_unrevoke(GFS2_SB(inode), bn, 1);
        gfs2_trans_add_bh(ip->i_gl, bh, 1);
        gfs2_metatype_set(bh, GFS2_METATYPE_LF, GFS2_FORMAT_LF);
        leaf = (struct gfs2_leaf *)bh->b_data;
@@ -852,8 +832,8 @@ static int dir_make_exhash(struct inode *inode)
                return -ENOSPC;
        bn = bh->b_blocknr;
 
-       gfs2_assert(sdp, dip->i_di.di_entries < (1 << 16));
-       leaf->lf_entries = cpu_to_be16(dip->i_di.di_entries);
+       gfs2_assert(sdp, dip->i_entries < (1 << 16));
+       leaf->lf_entries = cpu_to_be16(dip->i_entries);
 
        /*  Copy dirents  */
 
@@ -899,13 +879,12 @@ static int dir_make_exhash(struct inode *inode)
        for (x = sdp->sd_hash_ptrs; x--; lp++)
                *lp = cpu_to_be64(bn);
 
-       dip->i_di.di_size = sdp->sd_sb.sb_bsize / 2;
-       dip->i_di.di_blocks++;
-       dip->i_di.di_flags |= GFS2_DIF_EXHASH;
-       dip->i_di.di_payload_format = 0;
+       dip->i_disksize = sdp->sd_sb.sb_bsize / 2;
+       gfs2_add_inode_blocks(&dip->i_inode, 1);
+       dip->i_diskflags |= GFS2_DIF_EXHASH;
 
        for (x = sdp->sd_hash_ptrs, y = -1; x; x >>= 1, y++) ;
-       dip->i_di.di_depth = y;
+       dip->i_depth = y;
 
        gfs2_dinode_out(dip, dibh->b_data);
 
@@ -936,7 +915,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
        int x, moved = 0;
        int error;
 
-       index = name->hash >> (32 - dip->i_di.di_depth);
+       index = name->hash >> (32 - dip->i_depth);
        error = get_leaf_nr(dip, index, &leaf_no);
        if (error)
                return error;
@@ -947,7 +926,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
                return error;
 
        oleaf = (struct gfs2_leaf *)obh->b_data;
-       if (dip->i_di.di_depth == be16_to_cpu(oleaf->lf_depth)) {
+       if (dip->i_depth == be16_to_cpu(oleaf->lf_depth)) {
                brelse(obh);
                return 1; /* can't split */
        }
@@ -962,10 +941,10 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
        bn = nbh->b_blocknr;
 
        /*  Compute the start and len of leaf pointers in the hash table.  */
-       len = 1 << (dip->i_di.di_depth - be16_to_cpu(oleaf->lf_depth));
+       len = 1 << (dip->i_depth - be16_to_cpu(oleaf->lf_depth));
        half_len = len >> 1;
        if (!half_len) {
-               printk(KERN_WARNING "di_depth %u lf_depth %u index %u\n", dip->i_di.di_depth, be16_to_cpu(oleaf->lf_depth), index);
+               printk(KERN_WARNING "i_depth %u lf_depth %u index %u\n", dip->i_depth, be16_to_cpu(oleaf->lf_depth), index);
                gfs2_consist_inode(dip);
                error = -EIO;
                goto fail_brelse;
@@ -992,17 +971,17 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
        kfree(lp);
 
        /*  Compute the divider  */
-       divider = (start + half_len) << (32 - dip->i_di.di_depth);
+       divider = (start + half_len) << (32 - dip->i_depth);
 
        /*  Copy the entries  */
-       dirent_first(dip, obh, &dent);
+       dent = (struct gfs2_dirent *)(obh->b_data + sizeof(struct gfs2_leaf));
 
        do {
                next = dent;
                if (dirent_next(dip, obh, &next))
                        next = NULL;
 
-               if (dent->de_inum.no_addr &&
+               if (!gfs2_dirent_sentinel(dent) &&
                    be32_to_cpu(dent->de_hash) < divider) {
                        struct qstr str;
                        str.name = (char*)(dent+1);
@@ -1016,13 +995,13 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
 
                        new->de_inum = dent->de_inum; /* No endian worries */
                        new->de_type = dent->de_type; /* No endian worries */
-                       nleaf->lf_entries = cpu_to_be16(be16_to_cpu(nleaf->lf_entries)+1);
+                       be16_add_cpu(&nleaf->lf_entries, 1);
 
                        dirent_del(dip, obh, prev, dent);
 
                        if (!oleaf->lf_entries)
                                gfs2_consist_inode(dip);
-                       oleaf->lf_entries = cpu_to_be16(be16_to_cpu(oleaf->lf_entries)-1);
+                       be16_add_cpu(&oleaf->lf_entries, -1);
 
                        if (!prev)
                                prev = dent;
@@ -1038,7 +1017,8 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
 
        error = gfs2_meta_inode_buffer(dip, &dibh);
        if (!gfs2_assert_withdraw(GFS2_SB(&dip->i_inode), !error)) {
-               dip->i_di.di_blocks++;
+               gfs2_trans_add_bh(dip->i_gl, dibh, 1);
+               gfs2_add_inode_blocks(&dip->i_inode, 1);
                gfs2_dinode_out(dip, dibh->b_data);
                brelse(dibh);
        }
@@ -1075,17 +1055,17 @@ static int dir_double_exhash(struct gfs2_inode *dip)
        int x;
        int error = 0;
 
-       hsize = 1 << dip->i_di.di_depth;
-       if (hsize * sizeof(u64) != dip->i_di.di_size) {
+       hsize = 1 << dip->i_depth;
+       if (hsize * sizeof(u64) != dip->i_disksize) {
                gfs2_consist_inode(dip);
                return -EIO;
        }
 
        /*  Allocate both the "from" and "to" buffers in one big chunk  */
 
-       buf = kcalloc(3, sdp->sd_hash_bsize, GFP_KERNEL | __GFP_NOFAIL);
+       buf = kcalloc(3, sdp->sd_hash_bsize, GFP_NOFS | __GFP_NOFAIL);
 
-       for (block = dip->i_di.di_size >> sdp->sd_hash_bsize_shift; block--;) {
+       for (block = dip->i_disksize >> sdp->sd_hash_bsize_shift; block--;) {
                error = gfs2_dir_read_data(dip, (char *)buf,
                                            block * sdp->sd_hash_bsize,
                                            sdp->sd_hash_bsize, 1);
@@ -1118,7 +1098,7 @@ static int dir_double_exhash(struct gfs2_inode *dip)
 
        error = gfs2_meta_inode_buffer(dip, &dibh);
        if (!gfs2_assert_withdraw(sdp, !error)) {
-               dip->i_di.di_depth++;
+               dip->i_depth++;
                gfs2_dinode_out(dip, dibh->b_data);
                brelse(dibh);
        }
@@ -1191,12 +1171,11 @@ static int compare_dents(const void *a, const void *b)
  */
 
 static int do_filldir_main(struct gfs2_inode *dip, u64 *offset,
-                          void *opaque, gfs2_filldir_t filldir,
+                          void *opaque, filldir_t filldir,
                           const struct gfs2_dirent **darr, u32 entries,
                           int *copied)
 {
        const struct gfs2_dirent *dent, *dent_next;
-       struct gfs2_inum_host inum;
        u64 off, off_next;
        unsigned int x, y;
        int run = 0;
@@ -1233,11 +1212,9 @@ static int do_filldir_main(struct gfs2_inode *dip, u64 *offset,
                        *offset = off;
                }
 
-               gfs2_inum_in(&inum, (char *)&dent->de_inum);
-
                error = filldir(opaque, (const char *)(dent + 1),
                                be16_to_cpu(dent->de_name_len),
-                               off, &inum,
+                               off, be64_to_cpu(dent->de_inum.no_addr),
                                be16_to_cpu(dent->de_type));
                if (error)
                        return 1;
@@ -1255,13 +1232,14 @@ static int do_filldir_main(struct gfs2_inode *dip, u64 *offset,
 }
 
 static int gfs2_dir_read_leaf(struct inode *inode, u64 *offset, void *opaque,
-                             gfs2_filldir_t filldir, int *copied,
-                             unsigned *depth, u64 leaf_no)
+                             filldir_t filldir, int *copied, unsigned *depth,
+                             u64 leaf_no)
 {
        struct gfs2_inode *ip = GFS2_I(inode);
+       struct gfs2_sbd *sdp = GFS2_SB(inode);
        struct buffer_head *bh;
        struct gfs2_leaf *lf;
-       unsigned entries = 0;
+       unsigned entries = 0, entries2 = 0;
        unsigned leaves = 0;
        const struct gfs2_dirent **darr, *dent;
        struct dirent_gather g;
@@ -1287,7 +1265,13 @@ static int gfs2_dir_read_leaf(struct inode *inode, u64 *offset, void *opaque,
                return 0;
 
        error = -ENOMEM;
-       larr = vmalloc((leaves + entries) * sizeof(void *));
+       /*
+        * The extra 99 entries are not normally used, but are a buffer
+        * zone in case the number of entries in the leaf is corrupt.
+        * 99 is the maximum number of entries that can fit in a single
+        * leaf block.
+        */
+       larr = vmalloc((leaves + entries + 99) * sizeof(void *));
        if (!larr)
                goto out;
        darr = (const struct gfs2_dirent **)(larr + leaves);
@@ -1302,10 +1286,20 @@ static int gfs2_dir_read_leaf(struct inode *inode, u64 *offset, void *opaque,
                lf = (struct gfs2_leaf *)bh->b_data;
                lfn = be64_to_cpu(lf->lf_next);
                if (lf->lf_entries) {
+                       entries2 += be16_to_cpu(lf->lf_entries);
                        dent = gfs2_dirent_scan(inode, bh->b_data, bh->b_size,
                                                gfs2_dirent_gather, NULL, &g);
                        error = PTR_ERR(dent);
-                       if (IS_ERR(dent)) {
+                       if (IS_ERR(dent))
+                               goto out_kfree;
+                       if (entries2 != g.offset) {
+                               fs_warn(sdp, "Number of entries corrupt in dir "
+                                               "leaf %llu, entries2 (%u) != "
+                                               "g.offset (%u)\n",
+                                       (unsigned long long)bh->b_blocknr,
+                                       entries2, g.offset);
+                                       
+                               error = -EIO;
                                goto out_kfree;
                        }
                        error = 0;
@@ -1315,6 +1309,7 @@ static int gfs2_dir_read_leaf(struct inode *inode, u64 *offset, void *opaque,
                }
        } while(lfn);
 
+       BUG_ON(entries2 != entries);
        error = do_filldir_main(ip, offset, opaque, filldir, darr,
                                entries, copied);
 out_kfree:
@@ -1336,7 +1331,7 @@ out:
  */
 
 static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
-                     gfs2_filldir_t filldir)
+                     filldir_t filldir)
 {
        struct gfs2_inode *dip = GFS2_I(inode);
        struct gfs2_sbd *sdp = GFS2_SB(inode);
@@ -1348,16 +1343,16 @@ static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
        int error = 0;
        unsigned depth = 0;
 
-       hsize = 1 << dip->i_di.di_depth;
-       if (hsize * sizeof(u64) != dip->i_di.di_size) {
+       hsize = 1 << dip->i_depth;
+       if (hsize * sizeof(u64) != dip->i_disksize) {
                gfs2_consist_inode(dip);
                return -EIO;
        }
 
        hash = gfs2_dir_offset2hash(*offset);
-       index = hash >> (32 - dip->i_di.di_depth);
+       index = hash >> (32 - dip->i_depth);
 
-       lp = kmalloc(sdp->sd_hash_bsize, GFP_KERNEL);
+       lp = kmalloc(sdp->sd_hash_bsize, GFP_NOFS);
        if (!lp)
                return -ENOMEM;
 
@@ -1383,7 +1378,7 @@ static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
                if (error)
                        break;
 
-               len = 1 << (dip->i_di.di_depth - depth);
+               len = 1 << (dip->i_depth - depth);
                index = (index & ~(len - 1)) + len;
        }
 
@@ -1395,19 +1390,20 @@ out:
 }
 
 int gfs2_dir_read(struct inode *inode, u64 *offset, void *opaque,
-                 gfs2_filldir_t filldir)
+                 filldir_t filldir)
 {
        struct gfs2_inode *dip = GFS2_I(inode);
+       struct gfs2_sbd *sdp = GFS2_SB(inode);
        struct dirent_gather g;
        const struct gfs2_dirent **darr, *dent;
        struct buffer_head *dibh;
        int copied = 0;
        int error;
 
-       if (!dip->i_di.di_entries)
+       if (!dip->i_entries)
                return 0;
 
-       if (dip->i_di.di_flags & GFS2_DIF_EXHASH)
+       if (dip->i_diskflags & GFS2_DIF_EXHASH)
                return dir_e_read(inode, offset, opaque, filldir);
 
        if (!gfs2_is_stuffed(dip)) {
@@ -1420,8 +1416,8 @@ int gfs2_dir_read(struct inode *inode, u64 *offset, void *opaque,
                return error;
 
        error = -ENOMEM;
-       darr = kmalloc(dip->i_di.di_entries * sizeof(struct gfs2_dirent *),
-                      GFP_KERNEL);
+       /* 96 is max number of dirents which can be stuffed into an inode */
+       darr = kmalloc(96 * sizeof(struct gfs2_dirent *), GFP_NOFS);
        if (darr) {
                g.pdent = darr;
                g.offset = 0;
@@ -1431,8 +1427,17 @@ int gfs2_dir_read(struct inode *inode, u64 *offset, void *opaque,
                        error = PTR_ERR(dent);
                        goto out;
                }
+               if (dip->i_entries != g.offset) {
+                       fs_warn(sdp, "Number of entries corrupt in dir %llu, "
+                               "ip->i_entries (%u) != g.offset (%u)\n",
+                               (unsigned long long)dip->i_no_addr,
+                               dip->i_entries,
+                               g.offset);
+                       error = -EIO;
+                       goto out;
+               }
                error = do_filldir_main(dip, offset, opaque, filldir, darr,
-                                       dip->i_di.di_entries, &copied);
+                                       dip->i_entries, &copied);
 out:
                kfree(darr);
        }
@@ -1457,24 +1462,55 @@ out:
  * Returns: errno
  */
 
-int gfs2_dir_search(struct inode *dir, const struct qstr *name,
-                   struct gfs2_inum_host *inum, unsigned int *type)
+struct inode *gfs2_dir_search(struct inode *dir, const struct qstr *name)
+{
+       struct buffer_head *bh;
+       struct gfs2_dirent *dent;
+       struct inode *inode;
+
+       dent = gfs2_dirent_search(dir, name, gfs2_dirent_find, &bh);
+       if (dent) {
+               if (IS_ERR(dent))
+                       return ERR_CAST(dent);
+               inode = gfs2_inode_lookup(dir->i_sb, 
+                               be16_to_cpu(dent->de_type),
+                               be64_to_cpu(dent->de_inum.no_addr),
+                               be64_to_cpu(dent->de_inum.no_formal_ino), 0);
+               brelse(bh);
+               return inode;
+       }
+       return ERR_PTR(-ENOENT);
+}
+
+int gfs2_dir_check(struct inode *dir, const struct qstr *name,
+                  const struct gfs2_inode *ip)
 {
        struct buffer_head *bh;
        struct gfs2_dirent *dent;
+       int ret = -ENOENT;
 
        dent = gfs2_dirent_search(dir, name, gfs2_dirent_find, &bh);
        if (dent) {
                if (IS_ERR(dent))
                        return PTR_ERR(dent);
-               if (inum)
-                       gfs2_inum_in(inum, (char *)&dent->de_inum);
-               if (type)
-                       *type = be16_to_cpu(dent->de_type);
+               if (ip) {
+                       if (be64_to_cpu(dent->de_inum.no_addr) != ip->i_no_addr)
+                               goto out;
+                       if (be64_to_cpu(dent->de_inum.no_formal_ino) !=
+                           ip->i_no_formal_ino)
+                               goto out;
+                       if (unlikely(IF2DT(ip->i_inode.i_mode) !=
+                           be16_to_cpu(dent->de_type))) {
+                               gfs2_consist_inode(GFS2_I(dir));
+                               ret = -EIO;
+                               goto out;
+                       }
+               }
+               ret = 0;
+out:
                brelse(bh);
-               return 0;
        }
-       return -ENOENT;
+       return ret;
 }
 
 static int dir_new_leaf(struct inode *inode, const struct qstr *name)
@@ -1486,7 +1522,7 @@ static int dir_new_leaf(struct inode *inode, const struct qstr *name)
        u32 index;
        u64 bn;
 
-       index = name->hash >> (32 - ip->i_di.di_depth);
+       index = name->hash >> (32 - ip->i_depth);
        error = get_first_leaf(ip, index, &obh);
        if (error)
                return error;
@@ -1516,7 +1552,7 @@ static int dir_new_leaf(struct inode *inode, const struct qstr *name)
        if (error)
                return error;
        gfs2_trans_add_bh(ip->i_gl, bh, 1);
-       ip->i_di.di_blocks++;
+       gfs2_add_inode_blocks(&ip->i_inode, 1);
        gfs2_dinode_out(ip, bh->b_data);
        brelse(bh);
        return 0;
@@ -1533,7 +1569,7 @@ static int dir_new_leaf(struct inode *inode, const struct qstr *name)
  */
 
 int gfs2_dir_add(struct inode *inode, const struct qstr *name,
-                const struct gfs2_inum_host *inum, unsigned type)
+                const struct gfs2_inode *nip, unsigned type)
 {
        struct gfs2_inode *ip = GFS2_I(inode);
        struct buffer_head *bh;
@@ -1548,25 +1584,25 @@ int gfs2_dir_add(struct inode *inode, const struct qstr *name,
                        if (IS_ERR(dent))
                                return PTR_ERR(dent);
                        dent = gfs2_init_dirent(inode, dent, name, bh);
-                       gfs2_inum_out(inum, (char *)&dent->de_inum);
+                       gfs2_inum_out(nip, dent);
                        dent->de_type = cpu_to_be16(type);
-                       if (ip->i_di.di_flags & GFS2_DIF_EXHASH) {
+                       if (ip->i_diskflags & GFS2_DIF_EXHASH) {
                                leaf = (struct gfs2_leaf *)bh->b_data;
-                               leaf->lf_entries = cpu_to_be16(be16_to_cpu(leaf->lf_entries) + 1);
+                               be16_add_cpu(&leaf->lf_entries, 1);
                        }
                        brelse(bh);
                        error = gfs2_meta_inode_buffer(ip, &bh);
                        if (error)
                                break;
                        gfs2_trans_add_bh(ip->i_gl, bh, 1);
-                       ip->i_di.di_entries++;
-                       ip->i_inode.i_mtime.tv_sec = ip->i_inode.i_ctime.tv_sec = get_seconds();
+                       ip->i_entries++;
+                       ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
                        gfs2_dinode_out(ip, bh->b_data);
                        brelse(bh);
                        error = 0;
                        break;
                }
-               if (!(ip->i_di.di_flags & GFS2_DIF_EXHASH)) {
+               if (!(ip->i_diskflags & GFS2_DIF_EXHASH)) {
                        error = dir_make_exhash(inode);
                        if (error)
                                break;
@@ -1577,7 +1613,7 @@ int gfs2_dir_add(struct inode *inode, const struct qstr *name,
                        continue;
                if (error < 0)
                        break;
-               if (ip->i_di.di_depth < GFS2_DIR_MAX_DEPTH) {
+               if (ip->i_depth < GFS2_DIR_MAX_DEPTH) {
                        error = dir_double_exhash(ip);
                        if (error)
                                break;
@@ -1629,7 +1665,7 @@ int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *name)
        }
 
        dirent_del(dip, bh, prev, dent);
-       if (dip->i_di.di_flags & GFS2_DIF_EXHASH) {
+       if (dip->i_diskflags & GFS2_DIF_EXHASH) {
                struct gfs2_leaf *leaf = (struct gfs2_leaf *)bh->b_data;
                u16 entries = be16_to_cpu(leaf->lf_entries);
                if (!entries)
@@ -1642,11 +1678,11 @@ int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *name)
        if (error)
                return error;
 
-       if (!dip->i_di.di_entries)
+       if (!dip->i_entries)
                gfs2_consist_inode(dip);
        gfs2_trans_add_bh(dip->i_gl, bh, 1);
-       dip->i_di.di_entries--;
-       dip->i_inode.i_mtime.tv_sec = dip->i_inode.i_ctime.tv_sec = get_seconds();
+       dip->i_entries--;
+       dip->i_inode.i_mtime = dip->i_inode.i_ctime = CURRENT_TIME;
        gfs2_dinode_out(dip, bh->b_data);
        brelse(bh);
        mark_inode_dirty(&dip->i_inode);
@@ -1668,7 +1704,7 @@ int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *name)
  */
 
 int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename,
-                  struct gfs2_inum_host *inum, unsigned int new_type)
+                  const struct gfs2_inode *nip, unsigned int new_type)
 {
        struct buffer_head *bh;
        struct gfs2_dirent *dent;
@@ -1683,10 +1719,10 @@ int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename,
                return PTR_ERR(dent);
 
        gfs2_trans_add_bh(dip->i_gl, bh, 1);
-       gfs2_inum_out(inum, (char *)&dent->de_inum);
+       gfs2_inum_out(nip, dent);
        dent->de_type = cpu_to_be16(new_type);
 
-       if (dip->i_di.di_flags & GFS2_DIF_EXHASH) {
+       if (dip->i_diskflags & GFS2_DIF_EXHASH) {
                brelse(bh);
                error = gfs2_meta_inode_buffer(dip, &bh);
                if (error)
@@ -1694,7 +1730,7 @@ int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename,
                gfs2_trans_add_bh(dip->i_gl, bh, 1);
        }
 
-       dip->i_inode.i_mtime.tv_sec = dip->i_inode.i_ctime.tv_sec = get_seconds();
+       dip->i_inode.i_mtime = dip->i_inode.i_ctime = CURRENT_TIME;
        gfs2_dinode_out(dip, bh->b_data);
        brelse(bh);
        return 0;
@@ -1721,13 +1757,13 @@ static int foreach_leaf(struct gfs2_inode *dip, leaf_call_t lc, void *data)
        u64 leaf_no;
        int error = 0;
 
-       hsize = 1 << dip->i_di.di_depth;
-       if (hsize * sizeof(u64) != dip->i_di.di_size) {
+       hsize = 1 << dip->i_depth;
+       if (hsize * sizeof(u64) != dip->i_disksize) {
                gfs2_consist_inode(dip);
                return -EIO;
        }
 
-       lp = kmalloc(sdp->sd_hash_bsize, GFP_KERNEL);
+       lp = kmalloc(sdp->sd_hash_bsize, GFP_NOFS);
        if (!lp)
                return -ENOMEM;
 
@@ -1753,7 +1789,7 @@ static int foreach_leaf(struct gfs2_inode *dip, leaf_call_t lc, void *data)
                        if (error)
                                goto out;
                        leaf = (struct gfs2_leaf *)bh->b_data;
-                       len = 1 << (dip->i_di.di_depth - be16_to_cpu(leaf->lf_depth));
+                       len = 1 << (dip->i_depth - be16_to_cpu(leaf->lf_depth));
                        brelse(bh);
 
                        error = lc(dip, index, len, leaf_no, data);
@@ -1802,17 +1838,20 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len,
 
        memset(&rlist, 0, sizeof(struct gfs2_rgrp_list));
 
-       ht = kzalloc(size, GFP_KERNEL);
+       ht = kzalloc(size, GFP_NOFS);
        if (!ht)
                return -ENOMEM;
 
-       gfs2_alloc_get(dip);
+       if (!gfs2_alloc_get(dip)) {
+               error = -ENOMEM;
+               goto out;
+       }
 
        error = gfs2_quota_hold(dip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE);
        if (error)
-               goto out;
+               goto out_put;
 
-       error = gfs2_rindex_hold(sdp, &dip->i_alloc.al_ri_gh);
+       error = gfs2_rindex_hold(sdp, &dip->i_alloc->al_ri_gh);
        if (error)
                goto out_qs;
 
@@ -1830,12 +1869,12 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len,
                l_blocks++;
        }
 
-       gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE, 0);
+       gfs2_rlist_alloc(&rlist, LM_ST_EXCLUSIVE);
 
        for (x = 0; x < rlist.rl_rgrps; x++) {
                struct gfs2_rgrpd *rgd;
                rgd = rlist.rl_ghs[x].gh_gl->gl_object;
-               rg_blocks += rgd->rd_ri.ri_length;
+               rg_blocks += rgd->rd_length;
        }
 
        error = gfs2_glock_nq_m(rlist.rl_rgrps, rlist.rl_ghs);
@@ -1857,10 +1896,7 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len,
                brelse(bh);
 
                gfs2_free_meta(dip, blk, 1);
-
-               if (!dip->i_di.di_blocks)
-                       gfs2_consist_inode(dip);
-               dip->i_di.di_blocks--;
+               gfs2_add_inode_blocks(&dip->i_inode, -1);
        }
 
        error = gfs2_dir_write_data(dip, ht, index * sizeof(u64), size);
@@ -1884,11 +1920,12 @@ out_rg_gunlock:
        gfs2_glock_dq_m(rlist.rl_rgrps, rlist.rl_ghs);
 out_rlist:
        gfs2_rlist_free(&rlist);
-       gfs2_glock_dq_uninit(&dip->i_alloc.al_ri_gh);
+       gfs2_glock_dq_uninit(&dip->i_alloc->al_ri_gh);
 out_qs:
        gfs2_quota_unhold(dip);
-out:
+out_put:
        gfs2_alloc_put(dip);
+out:
        kfree(ht);
        return error;
 }