[PATCH 10/13] Use bool with jbd2_journal_cancel_revoke()

From: David Howells
Date: Wed Apr 29 2015 - 15:22:44 EST


jbd2_journal_cancel_revoke() should return a bool as it returns a boolean
value only, and should use bool type for a couple of internal variables. This
allows gcc to make better decisions.

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
---

fs/jbd2/revoke.c | 10 +++++-----
include/linux/jbd2.h | 2 +-
2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index c6cbaef2bda1..587b4947f0d0 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -417,12 +417,12 @@ int jbd2_journal_revoke(handle_t *handle, unsigned long long blocknr,
* do not trust the Revoked bit on buffers unless RevokeValid is also
* set.
*/
-int jbd2_journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
+bool jbd2_journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
{
struct jbd2_revoke_record_s *record;
journal_t *journal = handle->h_transaction->t_journal;
- int need_cancel;
- int did_revoke = 0; /* akpm: debug */
+ bool need_cancel;
+ int did_revoke = false; /* akpm: debug */
struct buffer_head *bh = jh2bh(jh);

jbd_debug(4, "journal_head %p, cancelling revoke\n", jh);
@@ -434,7 +434,7 @@ int jbd2_journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
if (test_set_buffer_revokevalid(bh)) {
need_cancel = test_clear_buffer_revoked(bh);
} else {
- need_cancel = 1;
+ need_cancel = true;
clear_buffer_revoked(bh);
}

@@ -447,7 +447,7 @@ int jbd2_journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
list_del(&record->hash);
spin_unlock(&journal->j_revoke_lock);
kmem_cache_free(jbd2_revoke_record_cache, record);
- did_revoke = 1;
+ did_revoke = true;
}
}

diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 20e7f78041c8..716f1d15e83d 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1219,7 +1219,7 @@ extern int jbd2_journal_init_revoke_caches(void);

extern void jbd2_journal_destroy_revoke(journal_t *);
extern int jbd2_journal_revoke (handle_t *, unsigned long long, struct buffer_head *);
-extern int jbd2_journal_cancel_revoke(handle_t *, struct journal_head *);
+extern bool jbd2_journal_cancel_revoke(handle_t *, struct journal_head *);
extern void jbd2_journal_write_revoke_records(journal_t *journal,
transaction_t *transaction,
struct list_head *log_bufs,

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