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(parent: 32f1352) | patch
n_tty: Split n_tty_chars_in_buffer() for reader-only interface
authorPeter Hurley <peter@hurleysoftware.com>
Sat, 15 Jun 2013 13:14:18 +0000 (09:14 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 23 Jul 2013 23:43:00 +0000 (16:43 -0700)
commita19d0c6a9166fe3d8bb1575b64f28590206148d9
tree5ea4e042a5883a7508b7ad044d5c82208c862dc7tree | snapshot
parent32f13521ca68bc624ff6effc77f308a52b038bf0commit | diff
n_tty: Split n_tty_chars_in_buffer() for reader-only interface

N_TTY .chars_in_buffer() method requires serialized access if
the current thread is not the single-consumer, n_tty_read().

Separate the internal interface; prepare for lockless read-side.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/n_tty.c diff | blob | history
Domain: System / Kernel;