new helper: file_inode(file)

[~andy/linux] / fs / udf / inode.c

diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index df88b957ccf04f39751686d3ff85f8f69ed8cdd2..cbae1ed0b7c17dcb966f7d43ca823fa0dcb357bf 100644 (file)
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -587,7 +587,6 @@ out:
 static sector_t inode_getblk(struct inode *inode, sector_t block,
                             int *err, int *new)
 {
-       static sector_t last_block;
        struct kernel_long_ad laarr[EXTENT_MERGE_SIZE];
        struct extent_position prev_epos, cur_epos, next_epos;
        int count = 0, startnum = 0, endnum = 0;
@@ -601,6 +600,7 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
        struct udf_inode_info *iinfo = UDF_I(inode);
        int goal = 0, pgoal = iinfo->i_location.logicalBlockNum;
        int lastblock = 0;
+       bool isBeyondEOF;
 
        *err = 0;
        *new = 0;
@@ -676,11 +676,10 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
                return newblock;
        }
 
-       last_block = block;
        /* Are we beyond EOF? */
        if (etype == -1) {
                int ret;
-
+               isBeyondEOF = 1;
                if (count) {
                        if (c)
                                laarr[0] = laarr[1];
@@ -718,11 +717,11 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
                        memset(&laarr[c].extLocation, 0x00,
                                sizeof(struct kernel_lb_addr));
                        count++;
-                       endnum++;
                }
                endnum = c + 1;
                lastblock = 1;
        } else {
+               isBeyondEOF = 0;
                endnum = startnum = ((count > 2) ? 2 : count);
 
                /* if the current extent is in position 0,
@@ -765,10 +764,13 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
                                goal, err);
                if (!newblocknum) {
                        brelse(prev_epos.bh);
+                       brelse(cur_epos.bh);
+                       brelse(next_epos.bh);
                        *err = -ENOSPC;
                        return 0;
                }
-               iinfo->i_lenExtents += inode->i_sb->s_blocksize;
+               if (isBeyondEOF)
+                       iinfo->i_lenExtents += inode->i_sb->s_blocksize;
        }
 
        /* if the extent the requsted block is located in contains multiple
@@ -795,6 +797,8 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
        udf_update_extents(inode, laarr, startnum, endnum, &prev_epos);
 
        brelse(prev_epos.bh);
+       brelse(cur_epos.bh);
+       brelse(next_epos.bh);
 
        newblock = udf_get_pblock(inode->i_sb, newblocknum,
                                iinfo->i_location.partitionReferenceNum, 0);