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authorPalmer Dabbelt <palmer@dabbelt.com>2023-03-10 17:07:54 +0100
committerArnd Bergmann <arnd@arndb.de>2023-03-10 21:05:16 +0100
commit063f3ed9faf38e41449838bb3258a7d00f75c5d1 (patch)
treeda2c35d08ed15872ba4d301bcff2a0de3675354a /fs
parentMove COMPAT_ATM_ADDPARTY to net/atm/svc.c (diff)
downloadlinux-063f3ed9faf38e41449838bb3258a7d00f75c5d1.tar.xz
linux-063f3ed9faf38e41449838bb3258a7d00f75c5d1.zip
Move ep_take_care_of_epollwakeup() to fs/eventpoll.c
This doesn't make any sense to expose to userspace, so it's been moved to the one user. This was introduced by commit 95f19f658ce1 ("epoll: drop EPOLLWAKEUP if PM_SLEEP is disabled"). Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com> Reviewed-by: Andrew Waterman <waterman@eecs.berkeley.edu> Reviewed-by: Albert Ou <aou@eecs.berkeley.edu> Message-Id: <1447119071-19392-7-git-send-email-palmer@dabbelt.com> [thuth: Rebased to fix contextual conflicts] Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'fs')
-rw-r--r--fs/eventpoll.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 64659b110973..e2a5d2cc9051 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -2042,6 +2042,19 @@ SYSCALL_DEFINE1(epoll_create, int, size)
return do_epoll_create(0);
}
+#ifdef CONFIG_PM_SLEEP
+static inline void ep_take_care_of_epollwakeup(struct epoll_event *epev)
+{
+ if ((epev->events & EPOLLWAKEUP) && !capable(CAP_BLOCK_SUSPEND))
+ epev->events &= ~EPOLLWAKEUP;
+}
+#else
+static inline void ep_take_care_of_epollwakeup(struct epoll_event *epev)
+{
+ epev->events &= ~EPOLLWAKEUP;
+}
+#endif
+
static inline int epoll_mutex_lock(struct mutex *mutex, int depth,
bool nonblock)
{