linux-kernel - [PATCH bcachefs-testing] bcachefs: use nonblocking variant of print_string_as

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Message-ID: <20250402181556.81529-1-bharadwaj.raju777@gmail.com>
Date: Wed,  2 Apr 2025 23:45:53 +0530
From: Bharadwaj Raju <bharadwaj.raju777@...il.com>
To: kent.overstreet@...ux.dev
Cc: Bharadwaj Raju <bharadwaj.raju777@...il.com>,
	linux-bcachefs@...r.kernel.org,
	shuah@...nel.org,
	linux-kernel@...r.kernel.org,
	linux-kernel-mentees@...ts.linux.dev
Subject: [PATCH bcachefs-testing] bcachefs: use nonblocking variant of print_string_as_lines in error path

The inconsistency error path calls print_string_as_lines, which calls
console_lock, which is a potentially-sleeping function and so can't be
called in an atomic context.

Replace calls to it with the nonblocking variant which is safe to call.

Signed-off-by: Bharadwaj Raju <bharadwaj.raju777@...il.com>
---
 fs/bcachefs/error.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/bcachefs/error.c b/fs/bcachefs/error.c
index b885bd92834c..baf5dfb32298 100644
--- a/fs/bcachefs/error.c
+++ b/fs/bcachefs/error.c
@@ -34,7 +34,7 @@ bool __bch2_inconsistent_error(struct bch_fs *c, struct printbuf *out)
 				   journal_cur_seq(&c->journal));
 		return true;
 	case BCH_ON_ERROR_panic:
-		bch2_print_string_as_lines(KERN_ERR, out->buf);
+		bch2_print_string_as_lines_nonblocking(KERN_ERR, out->buf);
 		panic(bch2_fmt(c, "panic after error"));
 		return true;
 	default:
@@ -71,7 +71,7 @@ static bool bch2_fs_trans_inconsistent(struct bch_fs *c, struct btree_trans *tra
 	if (trans)
 		bch2_trans_updates_to_text(&buf, trans);
 	bool ret = __bch2_inconsistent_error(c, &buf);
-	bch2_print_string_as_lines(KERN_ERR, buf.buf);
+	bch2_print_string_as_lines_nonblocking(KERN_ERR, buf.buf);
 
 	printbuf_exit(&buf);
 	return ret;
-- 
2.49.0