| Date | Sat, 10 Feb 2007 01:04:23 +0100 | From | Eric Dumazet <> | Subject | Re: [PATCH 0 of 4] Generic AIO by scheduling stacks |
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Linus Torvalds a écrit : > Ok, here's another entry in this discussion.
> > - IF the system call blocks, we call the architecture-specific > "schedule_async()" function before we even get any scheduler locks, and > it can just do a fork() at that time, and let the *child* return to the > original user space. The process that already started doing the system > call will just continue to do the system call.
Well, I guess if the original program was mono-threaded, and syscall used fget_light(), we might have a problem here if the child try a close(). So you may have to disable fget_light() magic if async call is the originator of the syscall.
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