diff options
Diffstat (limited to 'fs/jfs')
| -rw-r--r-- | fs/jfs/inode.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c index ed9ba6fe04f5..79e6cda28181 100644 --- a/fs/jfs/inode.c +++ b/fs/jfs/inode.c @@ -317,9 +317,24 @@ static ssize_t jfs_direct_IO(int rw, struct kiocb *iocb, { struct file *file = iocb->ki_filp; struct inode *inode = file->f_mapping->host; + ssize_t ret; - return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, + ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, offset, nr_segs, jfs_get_block, NULL); + + /* + * In case of error extending write may have instantiated a few + * blocks outside i_size. Trim these off again. + */ + if (unlikely((rw & WRITE) && ret < 0)) { + loff_t isize = i_size_read(inode); + loff_t end = offset + iov_length(iov, nr_segs); + + if (end > isize) + vmtruncate(inode, isize); + } + + return ret; } const struct address_space_operations jfs_aops = { |