From: Kent Overstreet <kent.overstreet@linux.dev>
Date: Fri, 7 Mar 2025 17:00:56 +0000 (-0500)
Subject: bcachefs: journal write path comment
X-Git-Tag: v6.15-rc1~146^2~64
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4b0fac4bed0797c33e0852312e1dbe11baa3fb01;p=thirdparty%2Fkernel%2Flinux.git

bcachefs: journal write path comment

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
---

diff --git a/fs/bcachefs/journal_io.c b/fs/bcachefs/journal_io.c
index a510755a8364e..331c9d7624398 100644
--- a/fs/bcachefs/journal_io.c
+++ b/fs/bcachefs/journal_io.c
@@ -1813,6 +1813,10 @@ static CLOSURE_CALLBACK(journal_write_preflush)
 	struct journal *j = container_of(w, struct journal, buf[w->idx]);
 	struct bch_fs *c = container_of(j, struct bch_fs, journal);
 
+	/*
+	 * Wait for previous journal writes to comelete; they won't necessarily
+	 * be flushed if they're still in flight
+	 */
 	if (j->seq_ondisk + 1 != le64_to_cpu(w->data->seq)) {
 		spin_lock(&j->lock);
 		if (j->seq_ondisk + 1 != le64_to_cpu(w->data->seq)) {