mirror of https://gitee.com/openkylin/linux.git
817d6d3bce
Remove TTY_DONT_FLIP tty flag. This flag was introduced in 2.1.X kernels to prevent the N_TTY line discipline functions read_chan() and n_tty_receive_buf() from running at the same time. 2.2.15 introduced tty->read_lock to protect access to the N_TTY read buffer, which is the only state requiring protection between these two functions. The current TTY_DONT_FLIP implementation is broken for SMP, and is not universally honored by drivers that send data directly to the line discipline receive_buf function. Because TTY_DONT_FLIP is not necessary, is broken in implementation, and is not universally honored, it is removed. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
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bnep | ||
cmtp | ||
hidp | ||
rfcomm | ||
Kconfig | ||
Makefile | ||
af_bluetooth.c | ||
hci_conn.c | ||
hci_core.c | ||
hci_event.c | ||
hci_sock.c | ||
hci_sysfs.c | ||
l2cap.c | ||
lib.c | ||
sco.c |