eventfd_ctx_fileget (9) Linux Manual Page

ByLinux Manual Posted onMay 3, 2026May 15, 2026 Updated onMay 15, 2026

eventfd_ctx_fileget – Acquires a reference to the internal eventfd context.

Synopsis

struct eventfd_ctx *eventfd_ctx_fileget(struct file *file);

file

[in] Eventfd file pointer.

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

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