[PATCH] ufs: wrong type cast

There are two ugly macros in ufs code:
#define UCPI_UBH ((struct ufs_buffer_head *)ucpi)
#define USPI_UBH ((struct ufs_buffer_head *)uspi)
when uspi looks like
struct {
struct ufs_buffer_head ;
}
and USPI_UBH has some sence,
ucpi looks like
struct {
struct not_ufs_buffer_head;
}

To prevent bugs in future, this patch convert macros to inline function and
fix "ucpi" structure.

Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

7 files changed, 91 insertions, 85 deletions

diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
index 06f970d02e3d..68de1312e4b6 100644
--- a/fs/ufs/balloc.c
+++ b/fs/ufs/balloc.c
@@ -69,7 +69,7 @@ void ufs_free_fragments(struct inode *inode, unsigned fragment, unsigned count)
         ucpi = ufs_load_cylinder (sb, cgno);
         if (!ucpi) 
                 goto failed;
-        ucg = ubh_get_ucg (UCPI_UBH);
+        ucg = ubh_get_ucg (UCPI_UBH(ucpi));
         if (!ufs_cg_chkmagic(sb, ucg)) {
                 ufs_panic (sb, "ufs_free_fragments", "internal error, bad magic number on cg %u", cgno);
                 goto failed;
@@ -77,11 +77,11 @@ void ufs_free_fragments(struct inode *inode, unsigned fragment, unsigned count)
 
         end_bit = bit + count;
         bbase = ufs_blknum (bit);
-        blkmap = ubh_blkmap (UCPI_UBH, ucpi->c_freeoff, bbase);
+        blkmap = ubh_blkmap (UCPI_UBH(ucpi), ucpi->c_freeoff, bbase);
         ufs_fragacct (sb, blkmap, ucg->cg_frsum, -1);
         for (i = bit; i < end_bit; i++) {
-                if (ubh_isclr (UCPI_UBH, ucpi->c_freeoff, i))
-                        ubh_setbit (UCPI_UBH, ucpi->c_freeoff, i);
+                if (ubh_isclr (UCPI_UBH(ucpi), ucpi->c_freeoff, i))
+                        ubh_setbit (UCPI_UBH(ucpi), ucpi->c_freeoff, i);
                 else 
                         ufs_error (sb, "ufs_free_fragments",
                                    "bit already cleared for fragment %u", i);
@@ -93,14 +93,14 @@ void ufs_free_fragments(struct inode *inode, unsigned fragment, unsigned count)
         fs32_add(sb, &ucg->cg_cs.cs_nffree, count);
         fs32_add(sb, &usb1->fs_cstotal.cs_nffree, count);
         fs32_add(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nffree, count);
-        blkmap = ubh_blkmap (UCPI_UBH, ucpi->c_freeoff, bbase);
+        blkmap = ubh_blkmap (UCPI_UBH(ucpi), ucpi->c_freeoff, bbase);
         ufs_fragacct(sb, blkmap, ucg->cg_frsum, 1);
 
         /*
          * Trying to reassemble free fragments into block
          */
         blkno = ufs_fragstoblks (bbase);
-        if (ubh_isblockset(UCPI_UBH, ucpi->c_freeoff, blkno)) {
+        if (ubh_isblockset(UCPI_UBH(ucpi), ucpi->c_freeoff, blkno)) {
                 fs32_sub(sb, &ucg->cg_cs.cs_nffree, uspi->s_fpb);
                 fs32_sub(sb, &usb1->fs_cstotal.cs_nffree, uspi->s_fpb);
                 fs32_sub(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nffree, uspi->s_fpb);
@@ -114,11 +114,11 @@ void ufs_free_fragments(struct inode *inode, unsigned fragment, unsigned count)
                 fs32_add(sb, &ubh_cg_blktot(ucpi, cylno), 1);
         }
         
-        ubh_mark_buffer_dirty (USPI_UBH);
-        ubh_mark_buffer_dirty (UCPI_UBH);
+        ubh_mark_buffer_dirty (USPI_UBH(uspi));
+        ubh_mark_buffer_dirty (UCPI_UBH(ucpi));
         if (sb->s_flags & MS_SYNCHRONOUS) {
                 ubh_ll_rw_block (SWRITE, 1, (struct ufs_buffer_head **)&ucpi);
-                ubh_wait_on_buffer (UCPI_UBH);
+                ubh_wait_on_buffer (UCPI_UBH(ucpi));
         }
         sb->s_dirt = 1;
         
@@ -176,7 +176,7 @@ do_more:
         ucpi = ufs_load_cylinder (sb, cgno);
         if (!ucpi) 
                 goto failed;
-        ucg = ubh_get_ucg (UCPI_UBH);
+        ucg = ubh_get_ucg (UCPI_UBH(ucpi));
         if (!ufs_cg_chkmagic(sb, ucg)) {
                 ufs_panic (sb, "ufs_free_blocks", "internal error, bad magic number on cg %u", cgno);
                 goto failed;
@@ -184,10 +184,10 @@ do_more:
 
         for (i = bit; i < end_bit; i += uspi->s_fpb) {
                 blkno = ufs_fragstoblks(i);
-                if (ubh_isblockset(UCPI_UBH, ucpi->c_freeoff, blkno)) {
+                if (ubh_isblockset(UCPI_UBH(ucpi), ucpi->c_freeoff, blkno)) {
                         ufs_error(sb, "ufs_free_blocks", "freeing free fragment");
                 }
-                ubh_setblock(UCPI_UBH, ucpi->c_freeoff, blkno);
+                ubh_setblock(UCPI_UBH(ucpi), ucpi->c_freeoff, blkno);
                 if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
                         ufs_clusteracct (sb, ucpi, blkno, 1);
                 DQUOT_FREE_BLOCK(inode, uspi->s_fpb);
@@ -200,11 +200,11 @@ do_more:
                 fs32_add(sb, &ubh_cg_blktot(ucpi, cylno), 1);
         }
 
-        ubh_mark_buffer_dirty (USPI_UBH);
-        ubh_mark_buffer_dirty (UCPI_UBH);
+        ubh_mark_buffer_dirty (USPI_UBH(uspi));
+        ubh_mark_buffer_dirty (UCPI_UBH(ucpi));
         if (sb->s_flags & MS_SYNCHRONOUS) {
                 ubh_ll_rw_block (SWRITE, 1, (struct ufs_buffer_head **)&ucpi);
-                ubh_wait_on_buffer (UCPI_UBH);
+                ubh_wait_on_buffer (UCPI_UBH(ucpi));
         }
 
         if (overflow) {
@@ -493,7 +493,7 @@ ufs_add_fragments (struct inode * inode, unsigned fragment,
         ucpi = ufs_load_cylinder (sb, cgno);
         if (!ucpi)
                 return 0;
-        ucg = ubh_get_ucg (UCPI_UBH);
+        ucg = ubh_get_ucg (UCPI_UBH(ucpi));
         if (!ufs_cg_chkmagic(sb, ucg)) {
                 ufs_panic (sb, "ufs_add_fragments",
                         "internal error, bad magic number on cg %u", cgno);
@@ -503,14 +503,14 @@ ufs_add_fragments (struct inode * inode, unsigned fragment,
         fragno = ufs_dtogd (fragment);
         fragoff = ufs_fragnum (fragno);
         for (i = oldcount; i < newcount; i++)
-                if (ubh_isclr (UCPI_UBH, ucpi->c_freeoff, fragno + i))
+                if (ubh_isclr (UCPI_UBH(ucpi), ucpi->c_freeoff, fragno + i))
                         return 0;
         /*
          * Block can be extended
          */
         ucg->cg_time = cpu_to_fs32(sb, get_seconds());
         for (i = newcount; i < (uspi->s_fpb - fragoff); i++)
-                if (ubh_isclr (UCPI_UBH, ucpi->c_freeoff, fragno + i))
+                if (ubh_isclr (UCPI_UBH(ucpi), ucpi->c_freeoff, fragno + i))
                         break;
         fragsize = i - oldcount;
         if (!fs32_to_cpu(sb, ucg->cg_frsum[fragsize]))
@@ -520,7 +520,7 @@ ufs_add_fragments (struct inode * inode, unsigned fragment,
         if (fragsize != count)
                 fs32_add(sb, &ucg->cg_frsum[fragsize - count], 1);
         for (i = oldcount; i < newcount; i++)
-                ubh_clrbit (UCPI_UBH, ucpi->c_freeoff, fragno + i);
+                ubh_clrbit (UCPI_UBH(ucpi), ucpi->c_freeoff, fragno + i);
         if(DQUOT_ALLOC_BLOCK(inode, count)) {
                 *err = -EDQUOT;
                 return 0;
@@ -530,11 +530,11 @@ ufs_add_fragments (struct inode * inode, unsigned fragment,
         fs32_sub(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nffree, count);
         fs32_sub(sb, &usb1->fs_cstotal.cs_nffree, count);
         
-        ubh_mark_buffer_dirty (USPI_UBH);
-        ubh_mark_buffer_dirty (UCPI_UBH);
+        ubh_mark_buffer_dirty (USPI_UBH(uspi));
+        ubh_mark_buffer_dirty (UCPI_UBH(ucpi));
         if (sb->s_flags & MS_SYNCHRONOUS) {
                 ubh_ll_rw_block (SWRITE, 1, (struct ufs_buffer_head **)&ucpi);
-                ubh_wait_on_buffer (UCPI_UBH);
+                ubh_wait_on_buffer (UCPI_UBH(ucpi));
         }
         sb->s_dirt = 1;
 
@@ -602,7 +602,7 @@ cg_found:
         ucpi = ufs_load_cylinder (sb, cgno);
         if (!ucpi)
                 return 0;
-        ucg = ubh_get_ucg (UCPI_UBH);
+        ucg = ubh_get_ucg (UCPI_UBH(ucpi));
         if (!ufs_cg_chkmagic(sb, ucg)) 
                 ufs_panic (sb, "ufs_alloc_fragments",
                         "internal error, bad magic number on cg %u", cgno);
@@ -625,7 +625,7 @@ cg_found:
                         return 0;
                 goal = ufs_dtogd (result);
                 for (i = count; i < uspi->s_fpb; i++)
-                        ubh_setbit (UCPI_UBH, ucpi->c_freeoff, goal + i);
+                        ubh_setbit (UCPI_UBH(ucpi), ucpi->c_freeoff, goal + i);
                 i = uspi->s_fpb - count;
                 DQUOT_FREE_BLOCK(inode, i);
 
@@ -644,7 +644,7 @@ cg_found:
                 return 0;
         }
         for (i = 0; i < count; i++)
-                ubh_clrbit (UCPI_UBH, ucpi->c_freeoff, result + i);
+                ubh_clrbit (UCPI_UBH(ucpi), ucpi->c_freeoff, result + i);
         
         fs32_sub(sb, &ucg->cg_cs.cs_nffree, count);
         fs32_sub(sb, &usb1->fs_cstotal.cs_nffree, count);
@@ -655,11 +655,11 @@ cg_found:
                 fs32_add(sb, &ucg->cg_frsum[allocsize - count], 1);
 
 succed:
-        ubh_mark_buffer_dirty (USPI_UBH);
-        ubh_mark_buffer_dirty (UCPI_UBH);
+        ubh_mark_buffer_dirty (USPI_UBH(uspi));
+        ubh_mark_buffer_dirty (UCPI_UBH(ucpi));
         if (sb->s_flags & MS_SYNCHRONOUS) {
                 ubh_ll_rw_block (SWRITE, 1, (struct ufs_buffer_head **)&ucpi);
-                ubh_wait_on_buffer (UCPI_UBH);
+                ubh_wait_on_buffer (UCPI_UBH(ucpi));
         }
         sb->s_dirt = 1;
 
@@ -682,7 +682,7 @@ static unsigned ufs_alloccg_block (struct inode * inode,
         sb = inode->i_sb;
         uspi = UFS_SB(sb)->s_uspi;
         usb1 = ubh_get_usb_first(uspi);
-        ucg = ubh_get_ucg(UCPI_UBH);
+        ucg = ubh_get_ucg(UCPI_UBH(ucpi));
 
         if (goal == 0) {
                 goal = ucpi->c_rotor;
@@ -694,7 +694,7 @@ static unsigned ufs_alloccg_block (struct inode * inode,
         /*
          * If the requested block is available, use it.
          */
-        if (ubh_isblockset(UCPI_UBH, ucpi->c_freeoff, ufs_fragstoblks(goal))) {
+        if (ubh_isblockset(UCPI_UBH(ucpi), ucpi->c_freeoff, ufs_fragstoblks(goal))) {
                 result = goal;
                 goto gotit;
         }
@@ -706,7 +706,7 @@ norot:
         ucpi->c_rotor = result;
 gotit:
         blkno = ufs_fragstoblks(result);
-        ubh_clrblock (UCPI_UBH, ucpi->c_freeoff, blkno);
+        ubh_clrblock (UCPI_UBH(ucpi), ucpi->c_freeoff, blkno);
         if ((UFS_SB(sb)->s_flags & UFS_CG_MASK) == UFS_CG_44BSD)
                 ufs_clusteracct (sb, ucpi, blkno, -1);
         if(DQUOT_ALLOC_BLOCK(inode, uspi->s_fpb)) {
@@ -739,7 +739,7 @@ static unsigned ufs_bitmap_search (struct super_block * sb,
 
         uspi = UFS_SB(sb)->s_uspi;
         usb1 = ubh_get_usb_first (uspi);
-        ucg = ubh_get_ucg(UCPI_UBH);
+        ucg = ubh_get_ucg(UCPI_UBH(ucpi));
 
         if (goal)
                 start = ufs_dtogd(goal) >> 3;
@@ -747,12 +747,12 @@ static unsigned ufs_bitmap_search (struct super_block * sb,
                 start = ucpi->c_frotor >> 3;
                 
         length = ((uspi->s_fpg + 7) >> 3) - start;
-        location = ubh_scanc(UCPI_UBH, ucpi->c_freeoff + start, length,
+        location = ubh_scanc(UCPI_UBH(ucpi), ucpi->c_freeoff + start, length,
                 (uspi->s_fpb == 8) ? ufs_fragtable_8fpb : ufs_fragtable_other,
                 1 << (count - 1 + (uspi->s_fpb & 7))); 
         if (location == 0) {
                 length = start + 1;
-                location = ubh_scanc(UCPI_UBH, ucpi->c_freeoff, length, 
+                location = ubh_scanc(UCPI_UBH(ucpi), ucpi->c_freeoff, length,
                         (uspi->s_fpb == 8) ? ufs_fragtable_8fpb : ufs_fragtable_other,
                         1 << (count - 1 + (uspi->s_fpb & 7)));
                 if (location == 0) {
@@ -769,7 +769,7 @@ static unsigned ufs_bitmap_search (struct super_block * sb,
         /*
          * found the byte in the map
          */
-        blockmap = ubh_blkmap(UCPI_UBH, ucpi->c_freeoff, result);
+        blockmap = ubh_blkmap(UCPI_UBH(ucpi), ucpi->c_freeoff, result);
         fragsize = 0;
         for (possition = 0, mask = 1; possition < 8; possition++, mask <<= 1) {
                 if (blockmap & mask) {
@@ -808,9 +808,9 @@ static void ufs_clusteracct(struct super_block * sb,
                 return;
 
         if (cnt > 0)
-                ubh_setbit(UCPI_UBH, ucpi->c_clusteroff, blkno);
+                ubh_setbit(UCPI_UBH(ucpi), ucpi->c_clusteroff, blkno);
         else
-                ubh_clrbit(UCPI_UBH, ucpi->c_clusteroff, blkno);
+                ubh_clrbit(UCPI_UBH(ucpi), ucpi->c_clusteroff, blkno);
 
         /*
          * Find the size of the cluster going forward.
@@ -819,7 +819,7 @@ static void ufs_clusteracct(struct super_block * sb,
         end = start + uspi->s_contigsumsize;
         if ( end >= ucpi->c_nclusterblks)
                 end = ucpi->c_nclusterblks;
-        i = ubh_find_next_zero_bit (UCPI_UBH, ucpi->c_clusteroff, end, start);
+        i = ubh_find_next_zero_bit (UCPI_UBH(ucpi), ucpi->c_clusteroff, end, start);
         if (i > end)
                 i = end;
         forw = i - start;
@@ -831,7 +831,7 @@ static void ufs_clusteracct(struct super_block * sb,
         end = start - uspi->s_contigsumsize;
         if (end < 0 ) 
                 end = -1;
-        i = ubh_find_last_zero_bit (UCPI_UBH, ucpi->c_clusteroff, start, end);
+        i = ubh_find_last_zero_bit (UCPI_UBH(ucpi), ucpi->c_clusteroff, start, end);
         if ( i < end) 
                 i = end;
         back = start - i;
@@ -843,11 +843,11 @@ static void ufs_clusteracct(struct super_block * sb,
         i = back + forw + 1;
         if (i > uspi->s_contigsumsize)
                 i = uspi->s_contigsumsize;
-        fs32_add(sb, (__fs32*)ubh_get_addr(UCPI_UBH, ucpi->c_clustersumoff + (i << 2)), cnt);
+        fs32_add(sb, (__fs32*)ubh_get_addr(UCPI_UBH(ucpi), ucpi->c_clustersumoff + (i << 2)), cnt);
         if (back > 0)
-                fs32_sub(sb, (__fs32*)ubh_get_addr(UCPI_UBH, ucpi->c_clustersumoff + (back << 2)), cnt);
+                fs32_sub(sb, (__fs32*)ubh_get_addr(UCPI_UBH(ucpi), ucpi->c_clustersumoff + (back << 2)), cnt);
         if (forw > 0)
-                fs32_sub(sb, (__fs32*)ubh_get_addr(UCPI_UBH, ucpi->c_clustersumoff + (forw << 2)), cnt);
+                fs32_sub(sb, (__fs32*)ubh_get_addr(UCPI_UBH(ucpi), ucpi->c_clustersumoff + (forw << 2)), cnt);
 }
 
 
diff --git a/fs/ufs/cylinder.c b/fs/ufs/cylinder.c
index 14abb8b835f7..65fe06810172 100644
--- a/fs/ufs/cylinder.c
+++ b/fs/ufs/cylinder.c
@@ -47,14 +47,14 @@ static void ufs_read_cylinder (struct super_block * sb,
         ucpi = sbi->s_ucpi[bitmap_nr];
         ucg = (struct ufs_cylinder_group *)sbi->s_ucg[cgno]->b_data;
 
-        UCPI_UBH->fragment = ufs_cgcmin(cgno);
-        UCPI_UBH->count = uspi->s_cgsize >> sb->s_blocksize_bits;
+        UCPI_UBH(ucpi)->fragment = ufs_cgcmin(cgno);
+        UCPI_UBH(ucpi)->count = uspi->s_cgsize >> sb->s_blocksize_bits;
         /*
          * We have already the first fragment of cylinder group block in buffer
          */
-        UCPI_UBH->bh[0] = sbi->s_ucg[cgno];
-        for (i = 1; i < UCPI_UBH->count; i++)
-                if (!(UCPI_UBH->bh[i] = sb_bread(sb, UCPI_UBH->fragment + i)))
+        UCPI_UBH(ucpi)->bh[0] = sbi->s_ucg[cgno];
+        for (i = 1; i < UCPI_UBH(ucpi)->count; i++)
+                if (!(UCPI_UBH(ucpi)->bh[i] = sb_bread(sb, UCPI_UBH(ucpi)->fragment + i)))
                         goto failed;
         sbi->s_cgno[bitmap_nr] = cgno;
                         
@@ -103,7 +103,7 @@ void ufs_put_cylinder (struct super_block * sb, unsigned bitmap_nr)
                 return;
         }
         ucpi = sbi->s_ucpi[bitmap_nr];
-        ucg = ubh_get_ucg(UCPI_UBH);
+        ucg = ubh_get_ucg(UCPI_UBH(ucpi));
 
         if (uspi->s_ncg > UFS_MAX_GROUP_LOADED && bitmap_nr >= sbi->s_cg_loaded) {
                 ufs_panic (sb, "ufs_put_cylinder", "internal error");
@@ -116,9 +116,9 @@ void ufs_put_cylinder (struct super_block * sb, unsigned bitmap_nr)
         ucg->cg_rotor = cpu_to_fs32(sb, ucpi->c_rotor);
         ucg->cg_frotor = cpu_to_fs32(sb, ucpi->c_frotor);
         ucg->cg_irotor = cpu_to_fs32(sb, ucpi->c_irotor);
-        ubh_mark_buffer_dirty (UCPI_UBH);
-        for (i = 1; i < UCPI_UBH->count; i++) {
-                brelse (UCPI_UBH->bh[i]);
+        ubh_mark_buffer_dirty (UCPI_UBH(ucpi));
+        for (i = 1; i < UCPI_UBH(ucpi)->count; i++) {
+                brelse (UCPI_UBH(ucpi)->bh[i]);
         }
 
         sbi->s_cgno[bitmap_nr] = UFS_CGNO_EMPTY;
diff --git a/fs/ufs/ialloc.c b/fs/ufs/ialloc.c
index c7a47ed4f430..2da0ffda82cc 100644
--- a/fs/ufs/ialloc.c
+++ b/fs/ufs/ialloc.c
@@ -91,7 +91,7 @@ void ufs_free_inode (struct inode * inode)
                 unlock_super (sb);
                 return;
         }
-        ucg = ubh_get_ucg(UCPI_UBH);
+        ucg = ubh_get_ucg(UCPI_UBH(ucpi));
         if (!ufs_cg_chkmagic(sb, ucg))
                 ufs_panic (sb, "ufs_free_fragments", "internal error, bad cg magic number");
 
@@ -104,10 +104,10 @@ void ufs_free_inode (struct inode * inode)
 
         clear_inode (inode);
 
-        if (ubh_isclr (UCPI_UBH, ucpi->c_iusedoff, bit))
+        if (ubh_isclr (UCPI_UBH(ucpi), ucpi->c_iusedoff, bit))
                 ufs_error(sb, "ufs_free_inode", "bit already cleared for inode %u", ino);
         else {
-                ubh_clrbit (UCPI_UBH, ucpi->c_iusedoff, bit);
+                ubh_clrbit (UCPI_UBH(ucpi), ucpi->c_iusedoff, bit);
                 if (ino < ucpi->c_irotor)
                         ucpi->c_irotor = ino;
                 fs32_add(sb, &ucg->cg_cs.cs_nifree, 1);
@@ -121,11 +121,11 @@ void ufs_free_inode (struct inode * inode)
                 }
         }
 
-        ubh_mark_buffer_dirty (USPI_UBH);
-        ubh_mark_buffer_dirty (UCPI_UBH);
+        ubh_mark_buffer_dirty (USPI_UBH(uspi));
+        ubh_mark_buffer_dirty (UCPI_UBH(ucpi));
         if (sb->s_flags & MS_SYNCHRONOUS) {
                 ubh_ll_rw_block (SWRITE, 1, (struct ufs_buffer_head **) &ucpi);
-                ubh_wait_on_buffer (UCPI_UBH);
+                ubh_wait_on_buffer (UCPI_UBH(ucpi));
         }
         
         sb->s_dirt = 1;
@@ -213,14 +213,14 @@ cg_found:
         ucpi = ufs_load_cylinder (sb, cg);
         if (!ucpi)
                 goto failed;
-        ucg = ubh_get_ucg(UCPI_UBH);
+        ucg = ubh_get_ucg(UCPI_UBH(ucpi));
         if (!ufs_cg_chkmagic(sb, ucg)) 
                 ufs_panic (sb, "ufs_new_inode", "internal error, bad cg magic number");
 
         start = ucpi->c_irotor;
-        bit = ubh_find_next_zero_bit (UCPI_UBH, ucpi->c_iusedoff, uspi->s_ipg, start);
+        bit = ubh_find_next_zero_bit (UCPI_UBH(ucpi), ucpi->c_iusedoff, uspi->s_ipg, start);
         if (!(bit < uspi->s_ipg)) {
-                bit = ubh_find_first_zero_bit (UCPI_UBH, ucpi->c_iusedoff, start);
+                bit = ubh_find_first_zero_bit (UCPI_UBH(ucpi), ucpi->c_iusedoff, start);
                 if (!(bit < start)) {
                         ufs_error (sb, "ufs_new_inode",
                             "cylinder group %u corrupted - error in inode bitmap\n", cg);
@@ -228,8 +228,8 @@ cg_found:
                 }
         }
         UFSD(("start = %u, bit = %u, ipg = %u\n", start, bit, uspi->s_ipg))
-        if (ubh_isclr (UCPI_UBH, ucpi->c_iusedoff, bit))
-                ubh_setbit (UCPI_UBH, ucpi->c_iusedoff, bit);
+        if (ubh_isclr (UCPI_UBH(ucpi), ucpi->c_iusedoff, bit))
+                ubh_setbit (UCPI_UBH(ucpi), ucpi->c_iusedoff, bit);
         else {
                 ufs_panic (sb, "ufs_new_inode", "internal error");
                 goto failed;
@@ -245,11 +245,11 @@ cg_found:
                 fs32_add(sb, &sbi->fs_cs(cg).cs_ndir, 1);
         }
 
-        ubh_mark_buffer_dirty (USPI_UBH);
-        ubh_mark_buffer_dirty (UCPI_UBH);
+        ubh_mark_buffer_dirty (USPI_UBH(uspi));
+        ubh_mark_buffer_dirty (UCPI_UBH(ucpi));
         if (sb->s_flags & MS_SYNCHRONOUS) {
                 ubh_ll_rw_block (SWRITE, 1, (struct ufs_buffer_head **) &ucpi);
-                ubh_wait_on_buffer (UCPI_UBH);
+                ubh_wait_on_buffer (UCPI_UBH(ucpi));
         }
         sb->s_dirt = 1;
 
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index fe5ab2aa2899..c00d1e741529 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -225,7 +225,7 @@ void ufs_error (struct super_block * sb, const char * function,
         
         if (!(sb->s_flags & MS_RDONLY)) {
                 usb1->fs_clean = UFS_FSBAD;
-                ubh_mark_buffer_dirty(USPI_UBH);
+                ubh_mark_buffer_dirty(USPI_UBH(uspi));
                 sb->s_dirt = 1;
                 sb->s_flags |= MS_RDONLY;
         }
@@ -257,7 +257,7 @@ void ufs_panic (struct super_block * sb, const char * function,
         
         if (!(sb->s_flags & MS_RDONLY)) {
                 usb1->fs_clean = UFS_FSBAD;
-                ubh_mark_buffer_dirty(USPI_UBH);
+                ubh_mark_buffer_dirty(USPI_UBH(uspi));
                 sb->s_dirt = 1;
         }
         va_start (args, fmt);
@@ -1014,7 +1014,7 @@ static void ufs_write_super (struct super_block *sb) {
                   || (flags & UFS_ST_MASK) == UFS_ST_SUNx86)
                         ufs_set_fs_state(sb, usb1, usb3,
                                         UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time));
-                ubh_mark_buffer_dirty (USPI_UBH);
+                ubh_mark_buffer_dirty (USPI_UBH(uspi));
         }
         sb->s_dirt = 0;
         UFSD(("EXIT\n"))
@@ -1083,7 +1083,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
                   || (flags & UFS_ST_MASK) == UFS_ST_SUNx86) 
                         ufs_set_fs_state(sb, usb1, usb3,
                                 UFS_FSOK - fs32_to_cpu(sb, usb1->fs_time));
-                ubh_mark_buffer_dirty (USPI_UBH);
+                ubh_mark_buffer_dirty (USPI_UBH(uspi));
                 sb->s_dirt = 0;
                 sb->s_flags |= MS_RDONLY;
         }
diff --git a/fs/ufs/util.c b/fs/ufs/util.c
index 72f91cc84bfe..f9556bc484ef 100644
--- a/fs/ufs/util.c
+++ b/fs/ufs/util.c
@@ -63,17 +63,17 @@ struct ufs_buffer_head * ubh_bread_uspi (struct ufs_sb_private_info * uspi,
         count = size >> uspi->s_fshift;
         if (count <= 0 || count > UFS_MAXFRAG)
                 return NULL;
-        USPI_UBH->fragment = fragment;
-        USPI_UBH->count = count;
+        USPI_UBH(uspi)->fragment = fragment;
+        USPI_UBH(uspi)->count = count;
         for (i = 0; i < count; i++)
-                if (!(USPI_UBH->bh[i] = sb_bread(sb, fragment + i)))
+                if (!(USPI_UBH(uspi)->bh[i] = sb_bread(sb, fragment + i)))
                         goto failed;
         for (; i < UFS_MAXFRAG; i++)
-                USPI_UBH->bh[i] = NULL;
-        return USPI_UBH;
+                USPI_UBH(uspi)->bh[i] = NULL;
+        return USPI_UBH(uspi);
 failed:
         for (j = 0; j < i; j++)
-                brelse (USPI_UBH->bh[j]);
+                brelse (USPI_UBH(uspi)->bh[j]);
         return NULL;
 }
 
@@ -90,11 +90,11 @@ void ubh_brelse (struct ufs_buffer_head * ubh)
 void ubh_brelse_uspi (struct ufs_sb_private_info * uspi)
 {
         unsigned i;
-        if (!USPI_UBH)
+        if (!USPI_UBH(uspi))
                 return;
-        for ( i = 0; i < USPI_UBH->count; i++ ) {
-                brelse (USPI_UBH->bh[i]);
-                USPI_UBH->bh[i] = NULL;
+        for ( i = 0; i < USPI_UBH(uspi)->count; i++ ) {
+                brelse (USPI_UBH(uspi)->bh[i]);
+                USPI_UBH(uspi)->bh[i] = NULL;
         }
 }
 
diff --git a/fs/ufs/util.h b/fs/ufs/util.h
index e10362d8f456..6a0b48cf9cef 100644
--- a/fs/ufs/util.h
+++ b/fs/ufs/util.h
@@ -17,10 +17,16 @@
 #define in_range(b,first,len)   ((b)>=(first)&&(b)<(first)+(len))
 
 /*
- * macros used for retyping
+ * functions used for retyping
  */
-#define UCPI_UBH ((struct ufs_buffer_head *)ucpi)
-#define USPI_UBH ((struct ufs_buffer_head *)uspi)
+static inline struct ufs_buffer_head *UCPI_UBH(struct ufs_cg_private_info *cpi)
+{
+        return &cpi->c_ubh;
+}
+static inline struct ufs_buffer_head *USPI_UBH(struct ufs_sb_private_info *spi)
+{
+        return &spi->s_ubh;
+}
 
 
 
@@ -326,10 +332,10 @@ static inline void *get_usb_offset(struct ufs_sb_private_info *uspi,
  * Macros to access cylinder group array structures
  */
 #define ubh_cg_blktot(ucpi,cylno) \
-        (*((__fs32*)ubh_get_addr(UCPI_UBH, (ucpi)->c_btotoff + ((cylno) << 2))))
+        (*((__fs32*)ubh_get_addr(UCPI_UBH(ucpi), (ucpi)->c_btotoff + ((cylno) << 2))))
 
 #define ubh_cg_blks(ucpi,cylno,rpos) \
-        (*((__fs16*)ubh_get_addr(UCPI_UBH, \
+        (*((__fs16*)ubh_get_addr(UCPI_UBH(ucpi), \
         (ucpi)->c_boff + (((cylno) * uspi->s_nrpos + (rpos)) << 1 ))))
 
 /*
diff --git a/include/linux/ufs_fs.h b/include/linux/ufs_fs.h
index 9d2b519700e7..48394dae225d 100644
--- a/include/linux/ufs_fs.h
+++ b/include/linux/ufs_fs.h
@@ -666,7 +666,7 @@ struct ufs_buffer_head {
 };
 
 struct ufs_cg_private_info {
-        struct ufs_cylinder_group ucg;
+        struct ufs_buffer_head c_ubh;
         __u32   c_cgx;          /* number of cylidner group */
         __u16   c_ncyl;         /* number of cyl's this cg */
         __u16   c_niblk;        /* number of inode blocks this cg */