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Message-Id: <1195005909.5163.91.camel@localhost>
Date: Tue, 13 Nov 2007 18:05:09 -0800
From: Joe Perches <joe@...ches.com>
To: linux-kernel <linux-kernel@...r.kernel.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
Stephen Tweedie <sct@...hat.com>,
Andrew Morton <akpm@...ux-foundation.org>,
linux-ext4@...r.kernel.org
Subject: [PATCH] - [5/15] - remove defconfig ptr comparisons to 0 - fs/jbd2
Remove defconfig ptr comparison to 0
Remove sparse warning: Using plain integer as NULL pointer
Signed-off-by: Joe Perches <joe@...ches.com>
---
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 6ddc553..ca74850 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -218,7 +218,7 @@ static int jbd2_journal_start_thread(journal_t *journal)
if (IS_ERR(t))
return PTR_ERR(t);
- wait_event(journal->j_wait_done_commit, journal->j_task != 0);
+ wait_event(journal->j_wait_done_commit, journal->j_task);
return 0;
}
@@ -230,7 +230,7 @@ static void journal_kill_thread(journal_t *journal)
while (journal->j_task) {
wake_up(&journal->j_wait_commit);
spin_unlock(&journal->j_state_lock);
- wait_event(journal->j_wait_done_commit, journal->j_task == 0);
+ wait_event(journal->j_wait_done_commit, !journal->j_task);
spin_lock(&journal->j_state_lock);
}
spin_unlock(&journal->j_state_lock);
@@ -1629,14 +1629,14 @@ static int journal_init_jbd2_journal_head_cache(void)
{
int retval;
- J_ASSERT(jbd2_journal_head_cache == 0);
+ J_ASSERT(!jbd2_journal_head_cache);
jbd2_journal_head_cache = kmem_cache_create("jbd2_journal_head",
sizeof(struct journal_head),
0, /* offset */
0, /* flags */
NULL); /* ctor */
retval = 0;
- if (jbd2_journal_head_cache == 0) {
+ if (!jbd2_journal_head_cache) {
retval = -ENOMEM;
printk(KERN_EMERG "JBD: no memory for journal_head cache\n");
}
@@ -1662,14 +1662,14 @@ static struct journal_head *journal_alloc_journal_head(void)
atomic_inc(&nr_journal_heads);
#endif
ret = kmem_cache_alloc(jbd2_journal_head_cache, GFP_NOFS);
- if (ret == 0) {
+ if (!ret) {
jbd_debug(1, "out of memory for journal_head\n");
if (time_after(jiffies, last_warning + 5*HZ)) {
printk(KERN_NOTICE "ENOMEM in %s, retrying.\n",
__FUNCTION__);
last_warning = jiffies;
}
- while (ret == 0) {
+ while (!ret) {
yield();
ret = kmem_cache_alloc(jbd2_journal_head_cache, GFP_NOFS);
}
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index 3595fd4..ec81511 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -172,13 +172,13 @@ int __init jbd2_journal_init_revoke_caches(void)
jbd2_revoke_record_cache = kmem_cache_create("jbd2_revoke_record",
sizeof(struct jbd2_revoke_record_s),
0, SLAB_HWCACHE_ALIGN, NULL);
- if (jbd2_revoke_record_cache == 0)
+ if (!jbd2_revoke_record_cache)
return -ENOMEM;
jbd2_revoke_table_cache = kmem_cache_create("jbd2_revoke_table",
sizeof(struct jbd2_revoke_table_s),
0, 0, NULL);
- if (jbd2_revoke_table_cache == 0) {
+ if (!jbd2_revoke_table_cache) {
kmem_cache_destroy(jbd2_revoke_record_cache);
jbd2_revoke_record_cache = NULL;
return -ENOMEM;
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index b1fcf2b..036e7ef 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -1164,7 +1164,7 @@ 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);
JBUFFER_TRACE(jh, "file as BJ_Metadata");
spin_lock(&journal->j_list_lock);
@@ -1512,7 +1512,7 @@ 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);
switch (jh->b_jlist) {
case BJ_None:
@@ -1581,11 +1581,11 @@ __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)
goto out;
spin_lock(&journal->j_list_lock);
- if (jh->b_transaction != 0 && jh->b_cp_transaction == 0) {
+ if (jh->b_transaction && !jh->b_cp_transaction) {
if (jh->b_jlist == BJ_SyncData || jh->b_jlist == BJ_Locked) {
/* A written-back ordered data buffer */
JBUFFER_TRACE(jh, "release data");
@@ -1593,7 +1593,7 @@ __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 && !jh->b_transaction) {
/* written-back checkpointed metadata buffer */
if (jh->b_jlist == BJ_None) {
JBUFFER_TRACE(jh, "remove from checkpoint list");
@@ -1953,7 +1953,7 @@ 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);
if (jh->b_transaction && jh->b_jlist == jlist)
return;
-
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