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Date: Mon, 20 Jun 2022 11:40:16 +0200 From: Jan Kara <jack@...e.cz> To: Ritesh Harjani <ritesh.list@...il.com> Cc: linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org, Jan Kara <jack@...e.com>, Alexander Viro <viro@...iv.linux.org.uk> Subject: Re: [RFC 2/3] fs/buffer: Drop useless return value of submit_bh On Mon 20-06-22 11:28:41, Ritesh Harjani wrote: > submit_bh always returns 0. This patch drops the useless return value of > submit_bh from __sync_dirty_buffer(). Once all of submit_bh callers are > cleaned up, we can make it's return type as void. > > Signed-off-by: Ritesh Harjani <ritesh.list@...il.com> Looks good. Feel free to add: Reviewed-by: Jan Kara <jack@...e.cz> Honza > --- > fs/buffer.c | 10 ++++------ > 1 file changed, 4 insertions(+), 6 deletions(-) > > diff --git a/fs/buffer.c b/fs/buffer.c > index 898c7f301b1b..313283af15b6 100644 > --- a/fs/buffer.c > +++ b/fs/buffer.c > @@ -3121,8 +3121,6 @@ EXPORT_SYMBOL(write_dirty_buffer); > */ > int __sync_dirty_buffer(struct buffer_head *bh, int op_flags) > { > - int ret = 0; > - > WARN_ON(atomic_read(&bh->b_count) < 1); > lock_buffer(bh); > if (test_clear_buffer_dirty(bh)) { > @@ -3137,14 +3135,14 @@ int __sync_dirty_buffer(struct buffer_head *bh, int op_flags) > > get_bh(bh); > bh->b_end_io = end_buffer_write_sync; > - ret = submit_bh(REQ_OP_WRITE, op_flags, bh); > + submit_bh(REQ_OP_WRITE, op_flags, bh); > wait_on_buffer(bh); > - if (!ret && !buffer_uptodate(bh)) > - ret = -EIO; > + if (!buffer_uptodate(bh)) > + return -EIO; > } else { > unlock_buffer(bh); > } > - return ret; > + return 0; > } > EXPORT_SYMBOL(__sync_dirty_buffer); > > -- > 2.35.3 > -- Jan Kara <jack@...e.com> SUSE Labs, CR
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