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# Copyright 2019 syzkaller project authors. All rights reserved.
# Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
include <linux/fcntl.h>
include <linux/ioctl.h>
include <uapi/linux/watch_queue.h>
resource fd_watch_queue[fd]
pipe2$watch_queue(pipefd ptr[out, pipefd$watch_queue], flags const[O_NOTIFICATION_PIPE])
read$watch_queue(fd fd_watch_queue, buf buffer[out], count len[buf])
ioctl$IOC_WATCH_QUEUE_SET_SIZE(fd fd_watch_queue, cmd const[IOC_WATCH_QUEUE_SET_SIZE], arg flags[watch_queue_size])
ioctl$IOC_WATCH_QUEUE_SET_FILTER(fd fd_watch_queue, cmd const[IOC_WATCH_QUEUE_SET_FILTER], arg ptr[in, watch_notification_filter])
pipefd$watch_queue {
rfd fd_watch_queue
wfd fd
}
watch_notification_filter {
nr_filters len[filters, int32]
__reserved const[0, int32]
filters array[watch_notification_type_filter]
}
watch_notification_type_filter {
type int32
info_filter int32
info_mask int32
subtype_filter array[int32, 8]
}
watch_queue_size = 1, 2, 4, 8, 16
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