Ar Gwe, 2006-06-30 am 14:51 +0400, ysgrifennodd Sergei Organov: > In fact, according to Alan Cox answer, the first call is useless here at > all, i.e., tty_buffer_request_room() is for subsequent > tty_insert_flip_char() calls in a loop, not for > tty_insert_flip_string(). tty_insert_flip_string() calls > tty_buffer_request_room() itself, and does it in a loop in attempt to > find as much memory as possible.
Yep. Think of it as a hint that "I'm about to stuff xyz bytes into memory" to get best memory efficiency. > tty_insert_flip_string() returns number of bytes it has actually > inserted, but I don't believe one can do much if it returns less than > has been requested as it means that we are out of kernel memory. Yes. I've been wondering if we should log the failure case somewhere, either as a tty-> object or printk. Alan Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
