Re: [PATCH] [2.5] Non-blocking write can block

From: Linus Torvalds (
Date: Wed Jun 04 2003 - 14:56:01 EST

On Wed, 4 Jun 2003, P. Benie wrote:
> The problem isn't to do with large writes. It's to do with any sequence of
> writes that fills up the receive buffer, which is only 4K for N_TTY. If
> the receiving program is suspended, the buffer will fill sooner or later.

Well, even then we could just drop the "write_atomic" lock.

The thing is, I don't know what the tty atomicity guarantees are. I know
what they are for pipes (quite reasonable), but tty's?


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