aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorJohn Ogness <[email protected]>2024-09-04 14:11:32 +0206
committerPetr Mladek <[email protected]>2024-09-04 15:56:33 +0200
commitc83a20662dd099dbac9ef6df44134ef446980c56 (patch)
tree9a5f99f706f2695e31ba6e66a72c83bae7c332f0
parentfe6fa88d865e9c1a41b41f92ae0531470c86f0da (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 <[email protected]> Reviewed-by: Petr Mladek <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Petr Mladek <[email protected]>
-rw-r--r--fs/proc/consoles.c5
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));