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eventpoll: align comment with nested epoll limitation

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fix comment in commit 02edc6fc4d ("epoll: comment the funky #ifdef")

Signed-off-by: Liu, Changcheng <changchengx.liu@outlook.com>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
This commit is contained in:
Changcheng Liu
2023-03-12 17:25:22 +08:00
committed by Christian Brauner (Microsoft)
parent eeac8ede17
commit 7059a9aa4b
1 changed files with 2 additions and 2 deletions
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4
fs/eventpoll.c
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@@ -483,8 +483,8 @@ static inline void ep_set_busy_poll_napi_id(struct epitem *epi)
* (efd1) notices that it may have some event ready, so it needs to wake up * (efd1) notices that it may have some event ready, so it needs to wake up
* the waiters on its poll wait list (efd2). So it calls ep_poll_safewake() * the waiters on its poll wait list (efd2). So it calls ep_poll_safewake()
* that ends up in another wake_up(), after having checked about the * that ends up in another wake_up(), after having checked about the
* recursion constraints. That are, no more than EP_MAX_POLLWAKE_NESTS, to * recursion constraints. That are, no more than EP_MAX_NESTS, to avoid
* avoid stack blasting. * stack blasting.
* *
* When CONFIG_DEBUG_LOCK_ALLOC is enabled, make sure lockdep can handle * When CONFIG_DEBUG_LOCK_ALLOC is enabled, make sure lockdep can handle
* this special case of epoll. * this special case of epoll.