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authorSreenath Vijayan <sreenath.vijayan@sony.com>2024-05-30 10:45:47 +0300
committerPetr Mladek <pmladek@suse.com>2024-06-03 18:17:29 +0300
commit3d9a0a25336433d48ddca1e1f4fea25fd4a3b1d8 (patch)
tree9ebb28d602a0cac9e68553601cb211457f0a5f4f /kernel/printk/printk.c
parent1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0 (diff)
downloadlinux-3d9a0a25336433d48ddca1e1f4fea25fd4a3b1d8.tar.xz
printk: Rename console_replay_all() and update context
Rename console_replay_all() to console_try_replay_all() to make clear that the implementation is best effort. Also, the function should not be called in NMI context as it takes locks, so update the comment in code. Fixes: 693f75b91a91 ("printk: Add function to replay kernel log on consoles") Fixes: 1b743485e27f ("tty/sysrq: Replay kernel log messages on consoles via sysrq") Suggested-by: Petr Mladek <pmladek@suse.com> Signed-off-by: Shimoyashiki Taichi <taichi.shimoyashiki@sony.com> Signed-off-by: Sreenath Vijayan <sreenath.vijayan@sony.com> Link: https://lore.kernel.org/r/Zlguq/wU21Z8MqI4@sreenath.vijayan@sony.com Reviewed-by: Petr Mladek <pmladek@suse.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
Diffstat (limited to 'kernel/printk/printk.c')
-rw-r--r--kernel/printk/printk.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 420fd310129d..ed003c06c335 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -4314,15 +4314,15 @@ void kmsg_dump_rewind(struct kmsg_dump_iter *iter)
EXPORT_SYMBOL_GPL(kmsg_dump_rewind);
/**
- * console_replay_all - replay kernel log on consoles
+ * console_try_replay_all - try to replay kernel log on consoles
*
* Try to obtain lock on console subsystem and replay all
* available records in printk buffer on the consoles.
* Does nothing if lock is not obtained.
*
- * Context: Any context.
+ * Context: Any, except for NMI.
*/
-void console_replay_all(void)
+void console_try_replay_all(void)
{
if (console_trylock()) {
__console_rewind_all();