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authorAl Viro <viro@zeniv.linux.org.uk>2012-08-28 12:52:22 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2012-09-26 22:20:08 -0400
commit2903ff019b346ab8d36ebbf54853c3aaf6590608 (patch)
tree962d94054765bb37bc00e977c3036e65c5fd91fe /fs/eventpoll.c
parenta5b470ba06aa3f96999ede5feba178df6bdb134a (diff)
downloadlinux-linaro-stable-2903ff019b346ab8d36ebbf54853c3aaf6590608.tar.gz
switch simple cases of fget_light to fdget
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/eventpoll.c')
-rw-r--r--fs/eventpoll.c25
1 files changed, 10 insertions, 15 deletions
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 567ae72e155d..cd96649bfe62 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1809,8 +1809,8 @@ error_return:
SYSCALL_DEFINE4(epoll_wait, int, epfd, struct epoll_event __user *, events,
int, maxevents, int, timeout)
{
- int error, fput_needed;
- struct file *file;
+ int error;
+ struct fd f;
struct eventpoll *ep;
/* The maximum number of event must be greater than zero */
@@ -1818,38 +1818,33 @@ SYSCALL_DEFINE4(epoll_wait, int, epfd, struct epoll_event __user *, events,
return -EINVAL;
/* Verify that the area passed by the user is writeable */
- if (!access_ok(VERIFY_WRITE, events, maxevents * sizeof(struct epoll_event))) {
- error = -EFAULT;
- goto error_return;
- }
+ if (!access_ok(VERIFY_WRITE, events, maxevents * sizeof(struct epoll_event)))
+ return -EFAULT;
/* Get the "struct file *" for the eventpoll file */
- error = -EBADF;
- file = fget_light(epfd, &fput_needed);
- if (!file)
- goto error_return;
+ f = fdget(epfd);
+ if (!f.file)
+ return -EBADF;
/*
* We have to check that the file structure underneath the fd
* the user passed to us _is_ an eventpoll file.
*/
error = -EINVAL;
- if (!is_file_epoll(file))
+ if (!is_file_epoll(f.file))
goto error_fput;
/*
* At this point it is safe to assume that the "private_data" contains
* our own data structure.
*/
- ep = file->private_data;
+ ep = f.file->private_data;
/* Time to fish for events ... */
error = ep_poll(ep, events, maxevents, timeout);
error_fput:
- fput_light(file, fput_needed);
-error_return:
-
+ fdput(f);
return error;
}