1 files changed, 90 insertions, 94 deletions

diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index cc57f2ecd219..8240c1ff94f4 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -38,8 +38,8 @@ struct metapath {
 };
 
 typedef int (*block_call_t) (struct gfs2_inode *ip, struct buffer_head *dibh,
-                             struct buffer_head *bh, u64 *top,
-                             u64 *bottom, unsigned int height,
+                             struct buffer_head *bh, __be64 *top,
+                             __be64 *bottom, unsigned int height,
                              void *data);
 
 struct strip_mine {
@@ -163,6 +163,7 @@ int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page)
         if (ip->i_di.di_size) {
                 *(__be64 *)(di + 1) = cpu_to_be64(block);
                 ip->i_di.di_blocks++;
+                gfs2_set_inode_blocks(&ip->i_inode);
                 di->di_blocks = cpu_to_be64(ip->i_di.di_blocks);
         }
 
@@ -230,7 +231,7 @@ static int build_height(struct inode *inode, unsigned height)
         struct buffer_head *blocks[GFS2_MAX_META_HEIGHT];
         struct gfs2_dinode *di;
         int error;
-        u64 *bp;
+        __be64 *bp;
         u64 bn;
         unsigned n;
 
@@ -255,7 +256,7 @@ static int build_height(struct inode *inode, unsigned height)
                                           GFS2_FORMAT_IN);
                         gfs2_buffer_clear_tail(blocks[n],
                                                sizeof(struct gfs2_meta_header));
-                        bp = (u64 *)(blocks[n]->b_data +
+                        bp = (__be64 *)(blocks[n]->b_data +
                                      sizeof(struct gfs2_meta_header));
                         *bp = cpu_to_be64(blocks[n+1]->b_blocknr);
                         brelse(blocks[n]);
@@ -272,6 +273,7 @@ static int build_height(struct inode *inode, unsigned height)
         *(__be64 *)(di + 1) = cpu_to_be64(bn);
         ip->i_di.di_height += new_height;
         ip->i_di.di_blocks += new_height;
+        gfs2_set_inode_blocks(&ip->i_inode);
         di->di_height = cpu_to_be16(ip->i_di.di_height);
         di->di_blocks = cpu_to_be64(ip->i_di.di_blocks);
         brelse(dibh);
@@ -360,15 +362,15 @@ static void find_metapath(struct gfs2_inode *ip, u64 block,
  * metadata tree.
  */
 
-static inline u64 *metapointer(struct buffer_head *bh, int *boundary,
+static inline __be64 *metapointer(struct buffer_head *bh, int *boundary,
                                unsigned int height, const struct metapath *mp)
 {
         unsigned int head_size = (height > 0) ?
                 sizeof(struct gfs2_meta_header) : sizeof(struct gfs2_dinode);
-        u64 *ptr;
+        __be64 *ptr;
         *boundary = 0;
-        ptr = ((u64 *)(bh->b_data + head_size)) + mp->mp_list[height];
-        if (ptr + 1 == (u64 *)(bh->b_data + bh->b_size))
+        ptr = ((__be64 *)(bh->b_data + head_size)) + mp->mp_list[height];
+        if (ptr + 1 == (__be64 *)(bh->b_data + bh->b_size))
                 *boundary = 1;
         return ptr;
 }
@@ -394,7 +396,7 @@ static int lookup_block(struct gfs2_inode *ip, struct buffer_head *bh,
                         int *new, u64 *block)
 {
         int boundary;
-        u64 *ptr = metapointer(bh, &boundary, height, mp);
+        __be64 *ptr = metapointer(bh, &boundary, height, mp);
 
         if (*ptr) {
                 *block = be64_to_cpu(*ptr);
@@ -415,17 +417,35 @@ static int lookup_block(struct gfs2_inode *ip, struct buffer_head *bh,
 
         *ptr = cpu_to_be64(*block);
         ip->i_di.di_blocks++;
+        gfs2_set_inode_blocks(&ip->i_inode);
 
         *new = 1;
         return 0;
 }
 
+static inline void bmap_lock(struct inode *inode, int create)
+{
+        struct gfs2_inode *ip = GFS2_I(inode);
+        if (create)
+                down_write(&ip->i_rw_mutex);
+        else
+                down_read(&ip->i_rw_mutex);
+}
+
+static inline void bmap_unlock(struct inode *inode, int create)
+{
+        struct gfs2_inode *ip = GFS2_I(inode);
+        if (create)
+                up_write(&ip->i_rw_mutex);
+        else
+                up_read(&ip->i_rw_mutex);
+}
+
 /**
- * gfs2_block_pointers - Map a block from an inode to a disk block
+ * gfs2_block_map - Map a block from an inode to a disk block
  * @inode: The inode
  * @lblock: The logical block number
- * @map_bh: The bh to be mapped
- * @mp: metapath to use
+ * @bh_map: The bh to be mapped
  *
  * Find the block number on the current device which corresponds to an
  * inode's block. If the block had to be created, "new" will be set.
@@ -433,9 +453,8 @@ static int lookup_block(struct gfs2_inode *ip, struct buffer_head *bh,
  * Returns: errno
  */
 
-static int gfs2_block_pointers(struct inode *inode, u64 lblock, int create,
-                               struct buffer_head *bh_map, struct metapath *mp,
-                               unsigned int maxlen)
+int gfs2_block_map(struct inode *inode, u64 lblock, int create,
+                   struct buffer_head *bh_map)
 {
         struct gfs2_inode *ip = GFS2_I(inode);
         struct gfs2_sbd *sdp = GFS2_SB(inode);
@@ -448,57 +467,62 @@ static int gfs2_block_pointers(struct inode *inode, u64 lblock, int create,
         int new = 0;
         u64 dblock = 0;
         int boundary;
+        unsigned int maxlen = bh_map->b_size >> inode->i_blkbits;
+        struct metapath mp;
+        u64 size;
 
         BUG_ON(maxlen == 0);
 
         if (gfs2_assert_warn(sdp, !gfs2_is_stuffed(ip)))
                 return 0;
 
+        bmap_lock(inode, create);
+        clear_buffer_mapped(bh_map);
+        clear_buffer_new(bh_map);
+        clear_buffer_boundary(bh_map);
         bsize = gfs2_is_dir(ip) ? sdp->sd_jbsize : sdp->sd_sb.sb_bsize;
-
-        height = calc_tree_height(ip, (lblock + 1) * bsize);
-        if (ip->i_di.di_height < height) {
-                if (!create)
-                        return 0;
-
-                error = build_height(inode, height);
-                if (error)
-                        return error;
+        size = (lblock + 1) * bsize;
+
+        if (size > ip->i_di.di_size) {
+                height = calc_tree_height(ip, size);
+                if (ip->i_di.di_height < height) {
+                        if (!create)
+                                goto out_ok;
+        
+                        error = build_height(inode, height);
+                        if (error)
+                                goto out_fail;
+                }
         }
 
-        find_metapath(ip, lblock, mp);
+        find_metapath(ip, lblock, &mp);
         end_of_metadata = ip->i_di.di_height - 1;
-
         error = gfs2_meta_inode_buffer(ip, &bh);
         if (error)
-                return error;
+                goto out_fail;
 
         for (x = 0; x < end_of_metadata; x++) {
-                lookup_block(ip, bh, x, mp, create, &new, &dblock);
+                lookup_block(ip, bh, x, &mp, create, &new, &dblock);
                 brelse(bh);
                 if (!dblock)
-                        return 0;
+                        goto out_ok;
 
                 error = gfs2_meta_indirect_buffer(ip, x+1, dblock, new, &bh);
                 if (error)
-                        return error;
+                        goto out_fail;
         }
 
-        boundary = lookup_block(ip, bh, end_of_metadata, mp, create, &new, &dblock);
-        clear_buffer_mapped(bh_map);
-        clear_buffer_new(bh_map);
-        clear_buffer_boundary(bh_map);
-
+        boundary = lookup_block(ip, bh, end_of_metadata, &mp, create, &new, &dblock);
         if (dblock) {
                 map_bh(bh_map, inode->i_sb, dblock);
                 if (boundary)
-                        set_buffer_boundary(bh);
+                        set_buffer_boundary(bh_map);
                 if (new) {
                         struct buffer_head *dibh;
                         error = gfs2_meta_inode_buffer(ip, &dibh);
                         if (!error) {
                                 gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-                                gfs2_dinode_out(&ip->i_di, dibh->b_data);
+                                gfs2_dinode_out(ip, dibh->b_data);
                                 brelse(dibh);
                         }
                         set_buffer_new(bh_map);
@@ -507,8 +531,8 @@ static int gfs2_block_pointers(struct inode *inode, u64 lblock, int create,
                 while(--maxlen && !buffer_boundary(bh_map)) {
                         u64 eblock;
 
-                        mp->mp_list[end_of_metadata]++;
-                        boundary = lookup_block(ip, bh, end_of_metadata, mp, 0, &new, &eblock);
+                        mp.mp_list[end_of_metadata]++;
+                        boundary = lookup_block(ip, bh, end_of_metadata, &mp, 0, &new, &eblock);
                         if (eblock != ++dblock)
                                 break;
                         bh_map->b_size += (1 << inode->i_blkbits);
@@ -518,44 +542,16 @@ static int gfs2_block_pointers(struct inode *inode, u64 lblock, int create,
         }
 out_brelse:
         brelse(bh);
-        return 0;
-}
-
-
-static inline void bmap_lock(struct inode *inode, int create)
-{
-        struct gfs2_inode *ip = GFS2_I(inode);
-        if (create)
-                down_write(&ip->i_rw_mutex);
-        else
-                down_read(&ip->i_rw_mutex);
-}
-
-static inline void bmap_unlock(struct inode *inode, int create)
-{
-        struct gfs2_inode *ip = GFS2_I(inode);
-        if (create)
-                up_write(&ip->i_rw_mutex);
-        else
-                up_read(&ip->i_rw_mutex);
-}
-
-int gfs2_block_map(struct inode *inode, u64 lblock, int create,
-                   struct buffer_head *bh, unsigned int maxlen)
-{
-        struct metapath mp;
-        int ret;
-
-        bmap_lock(inode, create);
-        ret = gfs2_block_pointers(inode, lblock, create, bh, &mp, maxlen);
+out_ok:
+        error = 0;
+out_fail:
         bmap_unlock(inode, create);
-        return ret;
+        return error;
 }
 
 int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsigned *extlen)
 {
-        struct metapath mp;
-        struct buffer_head bh = { .b_state = 0, .b_blocknr = 0, .b_size = 0 };
+        struct buffer_head bh = { .b_state = 0, .b_blocknr = 0 };
         int ret;
         int create = *new;
 
@@ -563,9 +559,8 @@ int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsi
         BUG_ON(!dblock);
         BUG_ON(!new);
 
-        bmap_lock(inode, create);
-        ret = gfs2_block_pointers(inode, lblock, create, &bh, &mp, 32);
-        bmap_unlock(inode, create);
+        bh.b_size = 1 << (inode->i_blkbits + 5);
+        ret = gfs2_block_map(inode, lblock, create, &bh);
         *extlen = bh.b_size >> inode->i_blkbits;
         *dblock = bh.b_blocknr;
         if (buffer_new(&bh))
@@ -599,7 +594,7 @@ static int recursive_scan(struct gfs2_inode *ip, struct buffer_head *dibh,
 {
         struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
         struct buffer_head *bh = NULL;
-        u64 *top, *bottom;
+        __be64 *top, *bottom;
         u64 bn;
         int error;
         int mh_size = sizeof(struct gfs2_meta_header);
@@ -610,17 +605,17 @@ static int recursive_scan(struct gfs2_inode *ip, struct buffer_head *dibh,
                         return error;
                 dibh = bh;
 
-                top = (u64 *)(bh->b_data + sizeof(struct gfs2_dinode)) + mp->mp_list[0];
-                bottom = (u64 *)(bh->b_data + sizeof(struct gfs2_dinode)) + sdp->sd_diptrs;
+                top = (__be64 *)(bh->b_data + sizeof(struct gfs2_dinode)) + mp->mp_list[0];
+                bottom = (__be64 *)(bh->b_data + sizeof(struct gfs2_dinode)) + sdp->sd_diptrs;
         } else {
                 error = gfs2_meta_indirect_buffer(ip, height, block, 0, &bh);
                 if (error)
                         return error;
 
-                top = (u64 *)(bh->b_data + mh_size) +
+                top = (__be64 *)(bh->b_data + mh_size) +
                                   (first ? mp->mp_list[height] : 0);
 
-                bottom = (u64 *)(bh->b_data + mh_size) + sdp->sd_inptrs;
+                bottom = (__be64 *)(bh->b_data + mh_size) + sdp->sd_inptrs;
         }
 
         error = bc(ip, dibh, bh, top, bottom, height, data);
@@ -659,7 +654,7 @@ out:
  */
 
 static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
-                    struct buffer_head *bh, u64 *top, u64 *bottom,
+                    struct buffer_head *bh, __be64 *top, __be64 *bottom,
                     unsigned int height, void *data)
 {
         struct strip_mine *sm = data;
@@ -667,7 +662,7 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
         struct gfs2_rgrp_list rlist;
         u64 bn, bstart;
         u32 blen;
-        u64 *p;
+        __be64 *p;
         unsigned int rg_blocks = 0;
         int metadata;
         unsigned int revokes = 0;
@@ -769,6 +764,7 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
                 if (!ip->i_di.di_blocks)
                         gfs2_consist_inode(ip);
                 ip->i_di.di_blocks--;
+                gfs2_set_inode_blocks(&ip->i_inode);
         }
         if (bstart) {
                 if (metadata)
@@ -777,9 +773,9 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
                         gfs2_free_data(ip, bstart, blen);
         }
 
-        ip->i_di.di_mtime = ip->i_di.di_ctime = get_seconds();
+        ip->i_inode.i_mtime.tv_sec = ip->i_inode.i_ctime.tv_sec = get_seconds();
 
-        gfs2_dinode_out(&ip->i_di, dibh->b_data);
+        gfs2_dinode_out(ip, dibh->b_data);
 
         up_write(&ip->i_rw_mutex);
 
@@ -818,7 +814,7 @@ static int do_grow(struct gfs2_inode *ip, u64 size)
         if (error)
                 goto out;
 
-        error = gfs2_quota_check(ip, ip->i_di.di_uid, ip->i_di.di_gid);
+        error = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid);
         if (error)
                 goto out_gunlock_q;
 
@@ -852,14 +848,14 @@ static int do_grow(struct gfs2_inode *ip, u64 size)
         }
 
         ip->i_di.di_size = size;
-        ip->i_di.di_mtime = ip->i_di.di_ctime = get_seconds();
+        ip->i_inode.i_mtime.tv_sec = ip->i_inode.i_ctime.tv_sec = get_seconds();
 
         error = gfs2_meta_inode_buffer(ip, &dibh);
         if (error)
                 goto out_end_trans;
 
         gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-        gfs2_dinode_out(&ip->i_di, dibh->b_data);
+        gfs2_dinode_out(ip, dibh->b_data);
         brelse(dibh);
 
 out_end_trans:
@@ -967,9 +963,9 @@ static int trunc_start(struct gfs2_inode *ip, u64 size)
 
         if (gfs2_is_stuffed(ip)) {
                 ip->i_di.di_size = size;
-                ip->i_di.di_mtime = ip->i_di.di_ctime = get_seconds();
+                ip->i_inode.i_mtime.tv_sec = ip->i_inode.i_ctime.tv_sec = get_seconds();
                 gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-                gfs2_dinode_out(&ip->i_di, dibh->b_data);
+                gfs2_dinode_out(ip, dibh->b_data);
                 gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode) + size);
                 error = 1;
 
@@ -979,10 +975,10 @@ static int trunc_start(struct gfs2_inode *ip, u64 size)
 
                 if (!error) {
                         ip->i_di.di_size = size;
-                        ip->i_di.di_mtime = ip->i_di.di_ctime = get_seconds();
+                        ip->i_inode.i_mtime.tv_sec = ip->i_inode.i_ctime.tv_sec = get_seconds();
                         ip->i_di.di_flags |= GFS2_DIF_TRUNC_IN_PROG;
                         gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-                        gfs2_dinode_out(&ip->i_di, dibh->b_data);
+                        gfs2_dinode_out(ip, dibh->b_data);
                 }
         }
 
@@ -1052,11 +1048,11 @@ static int trunc_end(struct gfs2_inode *ip)
                         ip->i_num.no_addr;
                 gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
         }
-        ip->i_di.di_mtime = ip->i_di.di_ctime = get_seconds();
+        ip->i_inode.i_mtime.tv_sec = ip->i_inode.i_ctime.tv_sec = get_seconds();
         ip->i_di.di_flags &= ~GFS2_DIF_TRUNC_IN_PROG;
 
         gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-        gfs2_dinode_out(&ip->i_di, dibh->b_data);
+        gfs2_dinode_out(ip, dibh->b_data);
         brelse(dibh);
 
 out:
@@ -1108,7 +1104,7 @@ int gfs2_truncatei(struct gfs2_inode *ip, u64 size)
 {
         int error;
 
-        if (gfs2_assert_warn(GFS2_SB(&ip->i_inode), S_ISREG(ip->i_di.di_mode)))
+        if (gfs2_assert_warn(GFS2_SB(&ip->i_inode), S_ISREG(ip->i_inode.i_mode)))
                 return -EINVAL;
 
         if (size > ip->i_di.di_size)