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| author | Al Viro <viro@zeniv.linux.org.uk> | 2014-04-02 20:02:21 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-05-06 17:37:59 -0400 |
| commit | a886038baa48a17f2cf77fb5dcc204fd28659d8f (patch) | |
| tree | 29793657ab020f0d596a61314b56fc265da88cd9 /fs/block_dev.c | |
| parent | 2ba5bbed0cd7429dbd567fa885ae3bc7a76de3d4 (diff) | |
| download | lwn-a886038baa48a17f2cf77fb5dcc204fd28659d8f.tar.gz lwn-a886038baa48a17f2cf77fb5dcc204fd28659d8f.zip | |
fs/block_dev.c: switch to ->read_iter()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index b140badb8184..3d97f4a257ff 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1532,23 +1532,19 @@ ssize_t blkdev_aio_write(struct kiocb *iocb, const struct iovec *iov, } EXPORT_SYMBOL_GPL(blkdev_aio_write); -static ssize_t blkdev_aio_read(struct kiocb *iocb, const struct iovec *iov, - unsigned long nr_segs, loff_t pos) +static ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to) { 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); + loff_t pos = iocb->ki_pos; if (pos >= size) return 0; size -= pos; - iov_iter_truncate(&to, size); - return generic_file_read_iter(iocb, &to); + iov_iter_truncate(to, size); + return generic_file_read_iter(iocb, to); } /* @@ -1580,9 +1576,9 @@ const struct file_operations def_blk_fops = { .open = blkdev_open, .release = blkdev_close, .llseek = block_llseek, - .read = do_sync_read, + .read = new_sync_read, .write = do_sync_write, - .aio_read = blkdev_aio_read, + .read_iter = blkdev_read_iter, .aio_write = blkdev_aio_write, .mmap = generic_file_mmap, .fsync = blkdev_fsync, |