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| author | Al Viro <viro@zeniv.linux.org.uk> | 2014-03-22 06:57:37 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-05-06 17:32:54 -0400 |
| commit | 37938463540b075e9166cf774c59274379f7a8ca (patch) | |
| tree | d264115725c6a6a6bada139fa04369389ce889fe /fs/block_dev.c | |
| parent | 0c949334a9e2581646c6ff0d1470a805b1e5be99 (diff) | |
| download | lwn-37938463540b075e9166cf774c59274379f7a8ca.tar.gz lwn-37938463540b075e9166cf774c59274379f7a8ca.zip | |
blkdev_aio_read(): switch to generic_file_read_iter(), get rid of iov_shorten()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index 937e3011ed58..b140badb8184 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1538,14 +1538,17 @@ static ssize_t blkdev_aio_read(struct kiocb *iocb, const struct iovec *iov, struct file *file = iocb->ki_filp; struct inode *bd_inode = file->f_mapping->host; loff_t size = i_size_read(bd_inode); + size_t count = iocb->ki_nbytes; + struct iov_iter to; + + iov_iter_init(&to, READ, iov, nr_segs, count); if (pos >= size) return 0; size -= pos; - if (size < iocb->ki_nbytes) - nr_segs = iov_shorten((struct iovec *)iov, nr_segs, size); - return generic_file_aio_read(iocb, iov, nr_segs, pos); + iov_iter_truncate(&to, size); + return generic_file_read_iter(iocb, &to); } /* |