From: Matthew Wilcox (Oracle) <willy@infradead.org>
Date: Thu, 28 May 2026 17:31:21 +0000 (+0100)
Subject: buffer: Convert __bh_read to bh_submit()
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=a70db2d6f0bb9a3cf5b49a4bb30d34da955f051c;p=thirdparty%2Fkernel%2Flinux.git

buffer: Convert __bh_read to bh_submit()

Avoid an extra indirect function call and changing the buffer refcount
by using bh_submit() instead of submit_bh().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Link: https://patch.msgid.link/20260528173150.1093780-9-willy@infradead.org
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
---

diff --git a/fs/buffer.c b/fs/buffer.c
index deabf74793250..97c8b99660605 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -3089,9 +3089,7 @@ int __bh_read(struct buffer_head *bh, blk_opf_t op_flags, bool wait)
 
 	BUG_ON(!buffer_locked(bh));
 
-	get_bh(bh);
-	bh->b_end_io = end_buffer_read_sync;
-	submit_bh(REQ_OP_READ | op_flags, bh);
+	bh_submit(bh, REQ_OP_READ | op_flags, bh_end_read);
 	if (wait) {
 		wait_on_buffer(bh);
 		if (!buffer_uptodate(bh))