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pass iov_iter to ->direct_IO()

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unmodified, for now

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2014-03-04 21:27:34 -05:00
parent cb66a7a1f1
commit d8d3d94b80
30 changed files with 117 additions and 126 deletions
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16
fs/ext3/inode.c
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@@ -1820,8 +1820,7 @@ static int ext3_releasepage(struct page *page, gfp_t wait)
* VFS code falls back into buffered path in that case so we are safe.
*/
static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb,
const struct iovec *iov, loff_t offset,
unsigned long nr_segs)
struct iov_iter *iter, loff_t offset)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
@@ -1829,10 +1828,10 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb,
handle_t *handle;
ssize_t ret;
int orphan = 0;
size_t count = iov_length(iov, nr_segs);
size_t count = iov_length(iter->iov, iter->nr_segs);
int retries = 0;
trace_ext3_direct_IO_enter(inode, offset, iov_length(iov, nr_segs), rw);
trace_ext3_direct_IO_enter(inode, offset, count, rw);
if (rw == WRITE) {
loff_t final_size = offset + count;
@@ -1856,15 +1855,15 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb,
}
retry:
ret = blockdev_direct_IO(rw, iocb, inode, iov, offset, nr_segs,
ext3_get_block);
ret = blockdev_direct_IO(rw, iocb, inode, iter->iov, offset,
iter->nr_segs, ext3_get_block);
/*
* 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);
loff_t end = offset + count;
if (end > isize)
ext3_truncate_failed_direct_write(inode);
@@ -1909,8 +1908,7 @@ retry:
ret = err;
}
out:
trace_ext3_direct_IO_exit(inode, offset,
iov_length(iov, nr_segs), rw, ret);
trace_ext3_direct_IO_exit(inode, offset, count, rw, ret);
return ret;
}