diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index a9ed2bce74d18b73ab3e9a4db41677c4599981f4..2c8caa51addb40c3120d9d3c97d91a559a70814e 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3446,8 +3446,6 @@ static ssize_t ext4_ind_direct_IO(int rw, struct kiocb *iocb, return ret; } -/* Maximum number of blocks we map for direct IO at once. */ - static int ext4_get_block_dio_write(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create) { @@ -3655,13 +3653,14 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset, ext4_io_end_t *io_end = iocb->private; struct workqueue_struct *wq; + /* if not async direct IO or dio with 0 bytes write, just return */ + if (!io_end || !size) + return; + ext_debug("ext4_end_io_dio(): io_end 0x%p" "for inode %lu, iocb 0x%p, offset %llu, size %llu\n", iocb->private, io_end->inode->i_ino, iocb, offset, size); - /* if not async direct IO or dio with 0 bytes write, just return */ - if (!io_end || !size) - return; /* if not aio dio with unwritten extents, just free io and return */ if (io_end->flag != DIO_AIO_UNWRITTEN){