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eventpoll: constify struct epoll_event pointers 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
hifive-unleashed-5.1
Al Viro 2017-11-28 19:43:33 -05:00
parent fcc5a652a5
commit bec1a502d3
1 changed files with 5 additions and 3 deletions
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8
fs/eventpoll.c
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@ -874,7 +874,8 @@ static void ep_ptable_queue_proc(struct file *file, wait_queue_head_t *whead,
* the ep->mtx so we need to start from depth=1, such that mutex_lock_nested()
* is correctly annotated.
*/
static unsigned int ep_item_poll(struct epitem *epi, poll_table *pt, int depth)
static unsigned int ep_item_poll(const struct epitem *epi, poll_table *pt,
int depth)
{
struct eventpoll *ep;
bool locked;
@ -1410,7 +1411,7 @@ static noinline void ep_destroy_wakeup_source(struct epitem *epi)
/*
* Must be called with "mtx" held.
*/
static int ep_insert(struct eventpoll *ep, struct epoll_event *event,
static int ep_insert(struct eventpoll *ep, const struct epoll_event *event,
struct file *tfile, int fd, int full_check)
{
int error, revents, pwake = 0;
@ -1541,7 +1542,8 @@ error_create_wakeup_source:
* Modify the interest event mask by dropping an event if the new mask
* has a match in the current file status. Must be called with "mtx" held.
*/
static int ep_modify(struct eventpoll *ep, struct epitem *epi, struct epoll_event *event)
static int ep_modify(struct eventpoll *ep, struct epitem *epi,
const struct epoll_event *event)
{
int pwake = 0;
unsigned int revents;