Mainstream has deprecated iov_iter_get_pages() + iov_iter_advance()
scheme in favour of iov_iter_get_pages2() + iov_iter_revert(), so we
have to use the new scheme as well.
Fixes: 75259bc81b21 ("fs/fuse kio: remove iov_iter_for_each_range()
usage")
The problem has appeared on rebasing to RHEL9.4 BETA 5.14.0-425.el9
kernel:
https://virtuozzo.atlassian.net/browse/PSBM-154941
Signed-off-by: Konstantin Khorenko <khore...@virtuozzo.com>
---
fs/fuse/kio/pcs/pcs_sock_io.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/fs/fuse/kio/pcs/pcs_sock_io.c b/fs/fuse/kio/pcs/pcs_sock_io.c
index 46de1023c876..189cf5c98c7d 100644
--- a/fs/fuse/kio/pcs/pcs_sock_io.c
+++ b/fs/fuse/kio/pcs/pcs_sock_io.c
@@ -226,10 +226,15 @@ static int do_recv_one_seg(struct socket *sock, struct
iov_iter *it, size_t left
ssize_t len;
struct page* page;
- len = iov_iter_get_pages(it, &page, size, 1, &offset);
+ len = iov_iter_get_pages2(it, &page, size, 1, &offset);
BUG_ON(len <=0);
ret = do_sock_recv(sock, kmap(page) + offset, len);
+ if (ret <= 0)
+ iov_iter_revert(it, len);
+ else if (ret < len)
+ iov_iter_revert(it, len - ret);
+
kunmap(page);
put_page(page);
}
@@ -313,7 +318,6 @@ static void pcs_sockio_recv(struct pcs_sockio *sio)
n = do_recv_one_seg(sio->socket, it,
(size_t)(msg_size - sio->read_offset));
if (n > 0) {
sio->read_offset += n;
- iov_iter_advance(it, n);
} else {
if (n == -EAGAIN || n == 0)
return;
--
2.39.3
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