---
name: "eventfd_ctx_fileget"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/eventfd_ctx_fileget"
---

# eventfd\_ctx\_fileget(9)

Acquires a reference to the internal eventfd context.

## NAME

eventfd\_ctx\_fileget - Acquires a reference to the internal eventfd context.

## SYNOPSIS

**struct eventfd\_ctx \* eventfd\_ctx\_fileget(struct file \*** *file***);**

## ARGUMENTS

*file*

\[in\] Eventfd file pointer.

## DESCRIPTION

Returns a pointer to the internal eventfd context, otherwise the error pointer:

\-EINVAL : The *fd* file descriptor is not an eventfd file.

## COPYRIGHT