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-rw-r--r--fs/bcachefs/util.c25
1 files changed, 22 insertions, 3 deletions
diff --git a/fs/bcachefs/util.c b/fs/bcachefs/util.c
index de331dec2a99..4ec7e44d6e36 100644
--- a/fs/bcachefs/util.c
+++ b/fs/bcachefs/util.c
@@ -252,8 +252,10 @@ void bch2_prt_u64_base2(struct printbuf *out, u64 v)
bch2_prt_u64_base2_nbits(out, v, fls64(v) ?: 1);
}
-void bch2_print_string_as_lines(const char *prefix, const char *lines)
+static void __bch2_print_string_as_lines(const char *prefix, const char *lines,
+ bool nonblocking)
{
+ bool locked = false;
const char *p;
if (!lines) {
@@ -261,7 +263,13 @@ void bch2_print_string_as_lines(const char *prefix, const char *lines)
return;
}
- console_lock();
+ if (!nonblocking) {
+ console_lock();
+ locked = true;
+ } else {
+ locked = console_trylock();
+ }
+
while (1) {
p = strchrnul(lines, '\n');
printk("%s%.*s\n", prefix, (int) (p - lines), lines);
@@ -269,7 +277,18 @@ void bch2_print_string_as_lines(const char *prefix, const char *lines)
break;
lines = p + 1;
}
- console_unlock();
+ if (locked)
+ console_unlock();
+}
+
+void bch2_print_string_as_lines(const char *prefix, const char *lines)
+{
+ return __bch2_print_string_as_lines(prefix, lines, false);
+}
+
+void bch2_print_string_as_lines_nonblocking(const char *prefix, const char *lines)
+{
+ return __bch2_print_string_as_lines(prefix, lines, true);
}
int bch2_save_backtrace(bch_stacktrace *stack, struct task_struct *task, unsigned skipnr,