• Eric Paris's avatar
    fanotify: fanotify_init syscall implementation · 52c923dd
    Eric Paris authored
    
    
    NAME
    	fanotify_init - initialize an fanotify group
    
    SYNOPSIS
    	int fanotify_init(unsigned int flags, unsigned int event_f_flags, int priority);
    
    DESCRIPTION
    	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
    		result.
    
    	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
    
    RETURN VALUE
    	On success, this system call return a new file descriptor. On error, -1 is
    	returned, and errno is set to indicate the error.
    
    ERRORS
    	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.
    
    CONFORMING TO
    	These system calls are Linux-specific.
    Signed-off-by: default avatarEric Paris <eparis@redhat.com>
    52c923dd
fanotify_user.c 1.58 KB