diff options
| author | Peter Hurley <peter@hurleysoftware.com> | 2013-06-15 13:14:21 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-23 23:43:00 (GMT) |
| commit | bc5a5e3f45d047844830233fb95b19a95c864a0f (patch) | |
| tree | 7d28526f720ac5460dde965c57d2fea1ed6410b3 /include/linux/debugfs.h | |
| parent | ce74117a1823431c86f5cb620fa852d21310feac (diff) | |
| download | linux-fsl-qoriq-bc5a5e3f45d047844830233fb95b19a95c864a0f.tar.xz | |
n_tty: Don't wrap input buffer indices at buffer size
Wrap read_buf indices (read_head, read_tail, canon_head) at
max representable value, instead of at the N_TTY_BUF_SIZE. This step
is necessary to allow lockless reads of these shared variables
(by updating the variables atomically).
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/debugfs.h')
0 files changed, 0 insertions, 0 deletions