lkml.org 
[lkml]   [2008]   [Jan]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 49/49] jbd2: sparse pointer use of zero as null
Date
From: Mingming Cao <cmm@us.ibm.com>

Get rid of sparse related warnings from places that use integer as NULL
pointer. (Ported from upstream ext3/jbd changes.)

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
fs/jbd2/transaction.c | 12 ++++++------
1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 0c8adab..b9b0b6f 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -1182,7 +1182,7 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh)
}

/* That test should have eliminated the following case: */
- J_ASSERT_JH(jh, jh->b_frozen_data == 0);
+ J_ASSERT_JH(jh, jh->b_frozen_data == NULL);

JBUFFER_TRACE(jh, "file as BJ_Metadata");
spin_lock(&journal->j_list_lock);
@@ -1532,7 +1532,7 @@ void __jbd2_journal_temp_unlink_buffer(struct journal_head *jh)

J_ASSERT_JH(jh, jh->b_jlist < BJ_Types);
if (jh->b_jlist != BJ_None)
- J_ASSERT_JH(jh, transaction != 0);
+ J_ASSERT_JH(jh, transaction != NULL);

switch (jh->b_jlist) {
case BJ_None:
@@ -1601,11 +1601,11 @@ __journal_try_to_free_buffer(journal_t *journal, struct buffer_head *bh)
if (buffer_locked(bh) || buffer_dirty(bh))
goto out;

- if (jh->b_next_transaction != 0)
+ if (jh->b_next_transaction != NULL)
goto out;

spin_lock(&journal->j_list_lock);
- if (jh->b_transaction != 0 && jh->b_cp_transaction == 0) {
+ if (jh->b_transaction != NULL && jh->b_cp_transaction == NULL) {
if (jh->b_jlist == BJ_SyncData || jh->b_jlist == BJ_Locked) {
/* A written-back ordered data buffer */
JBUFFER_TRACE(jh, "release data");
@@ -1613,7 +1613,7 @@ __journal_try_to_free_buffer(journal_t *journal, struct buffer_head *bh)
jbd2_journal_remove_journal_head(bh);
__brelse(bh);
}
- } else if (jh->b_cp_transaction != 0 && jh->b_transaction == 0) {
+ } else if (jh->b_cp_transaction != NULL && jh->b_transaction == NULL) {
/* written-back checkpointed metadata buffer */
if (jh->b_jlist == BJ_None) {
JBUFFER_TRACE(jh, "remove from checkpoint list");
@@ -1973,7 +1973,7 @@ void __jbd2_journal_file_buffer(struct journal_head *jh,

J_ASSERT_JH(jh, jh->b_jlist < BJ_Types);
J_ASSERT_JH(jh, jh->b_transaction == transaction ||
- jh->b_transaction == 0);
+ jh->b_transaction == NULL);

if (jh->b_transaction && jh->b_jlist == jlist)
return;
--
1.5.4.rc3.31.g1271-dirty


\
 
 \ /
  Last update: 2008-01-22 04:55    [W:0.290 / U:0.324 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site