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Diffstat (limited to 'fs/pstore/platform.c')
-rw-r--r--fs/pstore/platform.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 29996e8793a7..a40da07e93d6 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -164,7 +164,13 @@ static void pstore_console_write(struct console *con, const char *s, unsigned c)
if (c > psinfo->bufsize)
c = psinfo->bufsize;
- spin_lock_irqsave(&psinfo->buf_lock, flags);
+
+ if (oops_in_progress) {
+ if (!spin_trylock_irqsave(&psinfo->buf_lock, flags))
+ break;
+ } else {
+ spin_lock_irqsave(&psinfo->buf_lock, flags);
+ }
memcpy(psinfo->buf, s, c);
psinfo->write(PSTORE_TYPE_CONSOLE, 0, NULL, 0, c, psinfo);
spin_unlock_irqrestore(&psinfo->buf_lock, flags);
@@ -236,6 +242,7 @@ int pstore_register(struct pstore_info *psi)
kmsg_dump_register(&pstore_dumper);
pstore_register_console();
+ pstore_register_ftrace();
if (pstore_update_ms >= 0) {
pstore_timer.expires = jiffies +