Messages in this thread | | | From | hooanon05@yahoo ... | Subject | lock free inotify_ioctl()? | Date | Wed, 22 Oct 2008 22:39:30 +0900 |
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Hello John McCutchan and Robert Love,
I have a question about inotify_ioctl(). I am investigating if a user process misses the inotify event or gets wrong event by ioctl(fd, FIONREAD, &pending) in linux-2.6.27, and found it doesn't acquire dev->ev_mutex lock before accessing dev->queue_size.
In SMP system, is it safe and sure too? Is the mutex lock unnecessary?
Junjiro R. Okajima
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