diff options
| author | John Ogness <john.ogness@linutronix.de> | 2024-09-04 14:11:32 +0206 |
|---|---|---|
| committer | Petr Mladek <pmladek@suse.com> | 2024-09-04 15:56:33 +0200 |
| commit | c83a20662dd099dbac9ef6df44134ef446980c56 (patch) | |
| tree | 9a5f99f706f2695e31ba6e66a72c83bae7c332f0 /fs | |
| parent | fe6fa88d865e9c1a41b41f92ae0531470c86f0da (diff) | |
proc: Add nbcon support for /proc/consoles
Update /proc/consoles output to show 'W' if an nbcon console is
registered. Since the write_thread() callback is mandatory, it
enough just to check if it is an nbcon console.
Also update /proc/consoles output to show 'N' if it is an
nbcon console.
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20240904120536.115780-14-john.ogness@linutronix.de
Signed-off-by: Petr Mladek <pmladek@suse.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/proc/consoles.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/proc/consoles.c b/fs/proc/consoles.c index 7036fdfa0bec..b7cab1ad990d 100644 --- a/fs/proc/consoles.c +++ b/fs/proc/consoles.c @@ -21,6 +21,7 @@ static int show_console_dev(struct seq_file *m, void *v) { CON_ENABLED, 'E' }, { CON_CONSDEV, 'C' }, { CON_BOOT, 'B' }, + { CON_NBCON, 'N' }, { CON_PRINTBUFFER, 'p' }, { CON_BRL, 'b' }, { CON_ANYTIME, 'a' }, @@ -58,8 +59,8 @@ static int show_console_dev(struct seq_file *m, void *v) seq_printf(m, "%s%d", con->name, con->index); seq_pad(m, ' '); seq_printf(m, "%c%c%c (%s)", con->read ? 'R' : '-', - con->write ? 'W' : '-', con->unblank ? 'U' : '-', - flags); + ((con->flags & CON_NBCON) || con->write) ? 'W' : '-', + con->unblank ? 'U' : '-', flags); if (dev) seq_printf(m, " %4d:%d", MAJOR(dev), MINOR(dev)); |