}
/*
- * If we are going to release inode from memory, we discard preallocation and
- * truncate last inode extent to proper length. We could use drop_inode() but
- * it's called under inode_lock and thus we cannot mark inode dirty there. We
- * use clear_inode() but we have to make sure to write inode as it's not written
- * automatically.
+ * If we are going to release inode from memory, we truncate last inode extent
+ * to proper length. We could use drop_inode() but it's called under inode_lock
+ * and thus we cannot mark inode dirty there. We use clear_inode() but we have
+ * to make sure to write inode as it's not written automatically.
*/
void udf_clear_inode(struct inode *inode)
{
- struct udf_inode_info *iinfo;
- if (!(inode->i_sb->s_flags & MS_RDONLY)) {
- lock_kernel();
- /* Discard preallocation for directories, symlinks, etc. */
- udf_discard_prealloc(inode);
- udf_truncate_tail_extent(inode);
- unlock_kernel();
- write_inode_now(inode, 0);
- invalidate_inode_buffers(inode);
+ struct udf_inode_info *iinfo = UDF_I(inode);
+
+ if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB &&
+ inode->i_size != iinfo->i_lenExtents) {
+ printk(KERN_WARNING "UDF-fs (%s): Inode %lu (mode %o) has "
+ "inode size %llu different from extent lenght %llu. "
+ "Filesystem need not be standards compliant.\n",
+ inode->i_sb->s_id, inode->i_ino, inode->i_mode,
+ (unsigned long long)inode->i_size,
+ (unsigned long long)iinfo->i_lenExtents);
}
- iinfo = UDF_I(inode);
kfree(iinfo->i_ext.i_data);
iinfo->i_ext.i_data = NULL;
}
int newblock;
struct buffer_head *dbh = NULL;
struct kernel_lb_addr eloc;
- uint32_t elen;
uint8_t alloctype;
struct extent_position epos;
eloc.logicalBlockNum = *block;
eloc.partitionReferenceNum =
iinfo->i_location.partitionReferenceNum;
- elen = inode->i_sb->s_blocksize;
- iinfo->i_lenExtents = elen;
+ iinfo->i_lenExtents = inode->i_size;
epos.bh = NULL;
epos.block = iinfo->i_location;
epos.offset = udf_file_entry_alloc_offset(inode);
- udf_add_aext(inode, &epos, &eloc, elen, 0);
+ udf_add_aext(inode, &epos, &eloc, inode->i_size, 0);
/* UniqueID stuff */
brelse(epos.bh);
udf_split_extents(inode, &c, offset, newblocknum, laarr, &endnum);
#ifdef UDF_PREALLOCATE
- /* preallocate blocks */
- udf_prealloc_extents(inode, c, lastblock, laarr, &endnum);
+ /* We preallocate blocks only for regular files. It also makes sense
+ * for directories but there's a problem when to drop the
+ * preallocation. We might use some delayed work for that but I feel
+ * it's overengineering for a filesystem like UDF. */
+ if (S_ISREG(inode->i_mode))
+ udf_prealloc_extents(inode, c, lastblock, laarr, &endnum);
#endif
/* merge any continuous blocks in laarr */