• Eric Paris's avatar
    fanotify: fanotify_init syscall implementation · 52c923dd
    Eric Paris authored
    	fanotify_init - initialize an fanotify group
    	int fanotify_init(unsigned int flags, unsigned int event_f_flags, int priority);
    	fanotify_init() initializes a new fanotify instance and returns a file
    	descriptor associated with the new fanotify event queue.
    	The following values can be OR'd into the flags field:
    	FAN_NONBLOCK Set the O_NONBLOCK file status flag on the new open file description.
    		Using this flag saves extra calls to fcntl(2) to achieve the same
    	FAN_CLOEXEC Set the close-on-exec (FD_CLOEXEC) flag on the new file descriptor.
    		See the description of the O_CLOEXEC flag in open(2) for reasons why
    		this may be useful.
    	The event_f_flags argument is unused and must be set to 0
    	The priority argument is unused and must be set to 0
    	On success, this system call return a new file descriptor. On error, -1 is
    	returned, and errno is set to indicate the error.
    	EINVAL An invalid value was specified in flags.
    	EINVAL A non-zero valid was passed in event_f_flags or in priority
    	ENFILE The system limit on the total number of file descriptors has been reached.
    	ENOMEM Insufficient kernel memory is available.
    	These system calls are Linux-specific.
    Signed-off-by: default avatarEric Paris <eparis@redhat.com>
fanotify_user.c 1.58 KB