linux-kernel - [PATCH] jbd: Cleanup __process

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Message-Id: <1287217814-5782-1-git-send-email-namhyung@gmail.com>
Date:	Sat, 16 Oct 2010 17:30:14 +0900
From:	Namhyung Kim <namhyung@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>, Jan Kara <jack@...e.cz>
Cc:	linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] jbd: Cleanup __process_buffer()

Change initial value of 'ret' to 1 and set to 0 only if nothing
happens actually.

Signed-off-by: Namhyung Kim <namhyung@...il.com>
---
 fs/jbd/checkpoint.c |    9 +++------
 1 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/fs/jbd/checkpoint.c b/fs/jbd/checkpoint.c
index e4b87bc..0a687a6 100644
--- a/fs/jbd/checkpoint.c
+++ b/fs/jbd/checkpoint.c
@@ -280,7 +280,7 @@ static int __process_buffer(journal_t *journal, struct journal_head *jh,
 			struct buffer_head **bhs, int *batch_count)
 {
 	struct buffer_head *bh = jh2bh(jh);
-	int ret = 0;
+	int ret = 1;
 
 	if (buffer_locked(bh)) {
 		get_bh(bh);
@@ -290,7 +290,6 @@ static int __process_buffer(journal_t *journal, struct journal_head *jh,
 		/* the journal_head may have gone by now */
 		BUFFER_TRACE(bh, "brelse");
 		__brelse(bh);
-		ret = 1;
 	} else if (jh->b_transaction != NULL) {
 		transaction_t *t = jh->b_transaction;
 		tid_t tid = t->t_tid;
@@ -299,9 +298,7 @@ static int __process_buffer(journal_t *journal, struct journal_head *jh,
 		jbd_unlock_bh_state(bh);
 		log_start_commit(journal, tid);
 		log_wait_commit(journal, tid);
-		ret = 1;
 	} else if (!buffer_dirty(bh)) {
-		ret = 1;
 		if (unlikely(buffer_write_io_error(bh)))
 			ret = -EIO;
 		J_ASSERT_JH(jh, !buffer_jbddirty(bh));
@@ -330,8 +327,8 @@ static int __process_buffer(journal_t *journal, struct journal_head *jh,
 		if (*batch_count == NR_BATCH) {
 			spin_unlock(&journal->j_list_lock);
 			__flush_batch(journal, bhs, batch_count);
-			ret = 1;
-		}
+		} else
+			ret = 0;
 	}
 	return ret;
 }
-- 
1.7.0.4

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