Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

1 files changed, 21 insertions, 14 deletions

diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index e7c8615beb65..30c6e8a9446c 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -169,18 +169,20 @@ static void ufs_clear_frag(struct inode *inode, struct buffer_head *bh)
 
 static struct buffer_head *
 ufs_clear_frags(struct inode *inode, sector_t beg,
-                unsigned int n)
+                unsigned int n, sector_t want)
 {
-        struct buffer_head *res, *bh;
+        struct buffer_head *res = NULL, *bh;
         sector_t end = beg + n;
 
-        res = sb_getblk(inode->i_sb, beg);
-        ufs_clear_frag(inode, res);
-        for (++beg; beg < end; ++beg) {
+        for (; beg < end; ++beg) {
                 bh = sb_getblk(inode->i_sb, beg);
                 ufs_clear_frag(inode, bh);
-                brelse(bh);
+                if (want != beg)
+                        brelse(bh);
+                else
+                        res = bh;
         }
+        BUG_ON(!res);
         return res;
 }
 
@@ -265,7 +267,9 @@ repeat:
                         lastfrag = ufsi->i_lastfrag;
                         
                 }
-                goal = fs32_to_cpu(sb, ufsi->i_u1.i_data[lastblock]) + uspi->s_fpb;
+                tmp = fs32_to_cpu(sb, ufsi->i_u1.i_data[lastblock]);
+                if (tmp)
+                        goal = tmp + uspi->s_fpb;
                 tmp = ufs_new_fragments (inode, p, fragment - blockoff, 
                                          goal, required + blockoff,
                                          err, locked_page);
@@ -277,13 +281,15 @@ repeat:
                 tmp = ufs_new_fragments(inode, p, fragment - (blockoff - lastblockoff),
                                         fs32_to_cpu(sb, *p), required +  (blockoff - lastblockoff),
                                         err, locked_page);
-        }
+        } else /* (lastblock > block) */ {
         /*
          * We will allocate new block before last allocated block
          */
-        else /* (lastblock > block) */ {
-                if (lastblock && (tmp = fs32_to_cpu(sb, ufsi->i_u1.i_data[lastblock-1])))
-                        goal = tmp + uspi->s_fpb;
+                if (block) {
+                        tmp = fs32_to_cpu(sb, ufsi->i_u1.i_data[block-1]);
+                        if (tmp)
+                                goal = tmp + uspi->s_fpb;
+                }
                 tmp = ufs_new_fragments(inode, p, fragment - blockoff,
                                         goal, uspi->s_fpb, err, locked_page);
         }
@@ -296,7 +302,7 @@ repeat:
         }
 
         if (!phys) {
-                result = ufs_clear_frags(inode, tmp + blockoff, required);
+                result = ufs_clear_frags(inode, tmp, required, tmp + blockoff);
         } else {
                 *phys = tmp + blockoff;
                 result = NULL;
@@ -383,7 +389,7 @@ repeat:
                 }
         }
 
-        if (block && (tmp = fs32_to_cpu(sb, ((__fs32*)bh->b_data)[block-1]) + uspi->s_fpb))
+        if (block && (tmp = fs32_to_cpu(sb, ((__fs32*)bh->b_data)[block-1])))
                 goal = tmp + uspi->s_fpb;
         else
                 goal = bh->b_blocknr + uspi->s_fpb;
@@ -397,7 +403,8 @@ repeat:
 
 
         if (!phys) {
-                result = ufs_clear_frags(inode, tmp + blockoff, uspi->s_fpb);
+                result = ufs_clear_frags(inode, tmp, uspi->s_fpb,
+                                         tmp + blockoff);
         } else {
                 *phys = tmp + blockoff;
                 *new = 1;