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make aio_read()/aio_write() return int

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that ssize_t is a rudiment of earlier calling conventions; it's been
used only to pass 0 and -E... since last autumn.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2019-03-06 18:13:00 -05:00
parent af5c72b1fc
commit 958c13ce14
1 changed files with 6 additions and 6 deletions
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12
fs/aio.c
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@ -1513,13 +1513,13 @@ static inline void aio_rw_done(struct kiocb *req, ssize_t ret)
}
}
static ssize_t aio_read(struct kiocb *req, const struct iocb *iocb,
static int aio_read(struct kiocb *req, const struct iocb *iocb,
bool vectored, bool compat)
{
struct iovec inline_vecs[UIO_FASTIOV], *iovec = inline_vecs;
struct iov_iter iter;
struct file *file;
ssize_t ret;
int ret;
ret = aio_prep_rw(req, iocb);
if (ret)
@ -1541,13 +1541,13 @@ static ssize_t aio_read(struct kiocb *req, const struct iocb *iocb,
return ret;
}
static ssize_t aio_write(struct kiocb *req, const struct iocb *iocb,
static int aio_write(struct kiocb *req, const struct iocb *iocb,
bool vectored, bool compat)
{
struct iovec inline_vecs[UIO_FASTIOV], *iovec = inline_vecs;
struct iov_iter iter;
struct file *file;
ssize_t ret;
int ret;
ret = aio_prep_rw(req, iocb);
if (ret)
@ -1710,7 +1710,7 @@ aio_poll_queue_proc(struct file *file, struct wait_queue_head *head,
add_wait_queue(head, &pt->iocb->poll.wait);
}
static ssize_t aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb)
static int aio_poll(struct aio_kiocb *aiocb, const struct iocb *iocb)
{
struct kioctx *ctx = aiocb->ki_ctx;
struct poll_iocb *req = &aiocb->poll;
@ -1775,7 +1775,7 @@ static int __io_submit_one(struct kioctx *ctx, const struct iocb *iocb,
struct iocb __user *user_iocb, bool compat)
{
struct aio_kiocb *req;
ssize_t ret;
int ret;
/* enforce forwards compatibility on users */
if (unlikely(iocb->aio_reserved2)) {