[lkml]   [2003]   [Nov]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Fix locking in input
Pavel Machek writes:

> input uses "volatile signed char" as a shared variable between normal
> and interrupt threads (look at _sendbyte()). Thats bad idea, this
> switches it to atomic_t.

This change looks unnecessary to me - we aren't trying to increment or
decrement the variable, just set it and read it. Reading and writing
individual bytes is atomic on any platform we care about.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:58    [W:0.051 / U:4.056 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site