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ext4: Convert ext4_commit_super() to bh_submit()

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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/20260528173150.1093780-16-willy@infradead.org
Acked-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: linux-ext4@vger.kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
Matthew Wilcox (Oracle)
2026-05-28 18:31:28 +01:00
committed by Christian Brauner
parent 786a9941c7
commit aa17449d60
1 changed files with 2 additions and 4 deletions
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6
fs/ext4/super.c
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@@ -6316,12 +6316,10 @@ static int ext4_commit_super(struct super_block *sb)
clear_buffer_write_io_error(sbh);
set_buffer_uptodate(sbh);
}
get_bh(sbh);
/* Clear potential dirty bit if it was journalled update */
clear_buffer_dirty(sbh);
sbh->b_end_io = end_buffer_write_sync;
submit_bh(REQ_OP_WRITE | REQ_SYNC |
(test_opt(sb, BARRIER) ? REQ_FUA : 0), sbh);
bh_submit(sbh, REQ_OP_WRITE | REQ_SYNC |
(test_opt(sb, BARRIER) ? REQ_FUA : 0), bh_end_write);
wait_on_buffer(sbh);
if (buffer_write_io_error(sbh)) {
ext4_msg(sb, KERN_ERR, "I/O error while writing "