diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2010-08-06 21:40:30 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-08-10 13:47:44 -0700 |
| commit | b07471fa51358ce64cc25e1501544502362e4404 (patch) | |
| tree | 0bd1889eb3cbabe51f15cc5e971f9644cdced0f3 /drivers/char/Makefile | |
| parent | ddcd9fb66ae7f448b517242c10a31d4e17bcad45 (diff) | |
| download | lwn-b07471fa51358ce64cc25e1501544502362e4404.tar.gz lwn-b07471fa51358ce64cc25e1501544502362e4404.zip | |
tty: implement BTM as mutex instead of BKL
The tty locking now follows the rules for mutexes, so
we can replace the BKL usage with a new subsystem
wide mutex.
Using a regular mutex here will change the behaviour
when blocked on the BTM from spinning to sleeping,
but that should not be visible to the user.
Using the mutex also means that all the BTM is now
covered by lockdep.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/char/Makefile')
| -rw-r--r-- | drivers/char/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/char/Makefile b/drivers/char/Makefile index 273cee1cc77b..dc9641660605 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -9,6 +9,7 @@ FONTMAPFILE = cp437.uni obj-y += mem.o random.o tty_io.o n_tty.o tty_ioctl.o tty_ldisc.o tty_buffer.o tty_port.o +obj-y += tty_mutex.o obj-$(CONFIG_LEGACY_PTYS) += pty.o obj-$(CONFIG_UNIX98_PTYS) += pty.o obj-y += misc.o |