From: Chris Mason <mason@suse.com>
reiserfs_file_write makes a hole one block too large if it is the first thing
in the file.
---
25-akpm/fs/reiserfs/file.c | 15 ++++++++++++++-
1 files changed, 14 insertions(+), 1 deletion(-)
diff -puN fs/reiserfs/file.c~reiserfs-file_write_hole_sd.diff fs/reiserfs/file.c
--- 25/fs/reiserfs/file.c~reiserfs-file_write_hole_sd.diff Wed Mar 24 15:14:48 2004
+++ 25-akpm/fs/reiserfs/file.c Wed Mar 24 15:14:48 2004
@@ -285,7 +285,20 @@ int reiserfs_allocate_blocks_for_region(
// position, and how many blocks it is going to cover (we need to
// populate pointers to file blocks representing the hole with zeros)
- hole_size = (pos + 1 - (le_key_k_offset( get_inode_item_key_version(inode), &(ih->ih_key))+op_bytes_number(ih, inode->i_sb->s_blocksize))) >> inode->i_sb->s_blocksize_bits;
+ {
+ int item_offset = 1;
+ /*
+ * if ih is stat data, its offset is 0 and we don't want to
+ * add 1 to pos in the hole_size calculation
+ */
+ if (is_statdata_le_ih(ih))
+ item_offset = 0;
+ hole_size = (pos + item_offset -
+ (le_key_k_offset( get_inode_item_key_version(inode),
+ &(ih->ih_key)) +
+ op_bytes_number(ih, inode->i_sb->s_blocksize))) >>
+ inode->i_sb->s_blocksize_bits;
+ }
if ( hole_size > 0 ) {
int to_paste = min_t(__u64, hole_size, MAX_ITEM_LEN(inode->i_sb->s_blocksize)/UNFM_P_SIZE ); // How much data to insert first time.
_