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Date: Sat, 02 Feb 2008 20:21:53 -0800
From: Harvey Harrison <harvey.harrison@...il.com>
To: "Stephen C. Tweedie" <sct@...hat.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] jbd/jbd2: sparse warnings in revoke.c, journal.c
fs/jbd/revoke.c:176:29: warning: Using plain integer as NULL pointer
fs/jbd/revoke.c:182:28: warning: Using plain integer as NULL pointer
fs/jbd/journal.c:1622:2: warning: Using plain integer as NULL pointer
fs/jbd/journal.c:1629:28: warning: Using plain integer as NULL pointer
fs/jbd2/revoke.c:177:34: warning: Using plain integer as NULL pointer
fs/jbd2/revoke.c:183:33: warning: Using plain integer as NULL pointer
fs/jbd2/journal.c:222:2: warning: Using plain integer as NULL pointer
fs/jbd2/journal.c:222:2: warning: Using plain integer as NULL pointer
fs/jbd2/journal.c:234:3: warning: Using plain integer as NULL pointer
fs/jbd2/journal.c:234:3: warning: Using plain integer as NULL pointer
fs/jbd2/journal.c:1972:2: warning: Using plain integer as NULL pointer
fs/jbd2/journal.c:1979:33: warning: Using plain integer as NULL pointer
fs/jbd2/journal.c:2005:13: warning: Using plain integer as NULL pointer
fs/jbd2/journal.c:2012:17: warning: Using plain integer as NULL pointer
Signed-off-by: Harvey Harrison <harvey.harrison@...il.com>
---
fs/jbd/journal.c | 4 ++--
fs/jbd/revoke.c | 4 ++--
fs/jbd2/journal.c | 12 ++++++------
fs/jbd2/revoke.c | 4 ++--
4 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index 5d14243..0459657 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -1619,14 +1619,14 @@ static int journal_init_journal_head_cache(void)
{
int retval;
- J_ASSERT(journal_head_cache == 0);
+ J_ASSERT(!journal_head_cache);
journal_head_cache = kmem_cache_create("journal_head",
sizeof(struct journal_head),
0, /* offset */
SLAB_TEMPORARY, /* flags */
NULL); /* ctor */
retval = 0;
- if (journal_head_cache == 0) {
+ if (!journal_head_cache) {
retval = -ENOMEM;
printk(KERN_EMERG "JBD: no memory for journal_head cache\n");
}
diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c
index ad2eacf..d5f8eee 100644
--- a/fs/jbd/revoke.c
+++ b/fs/jbd/revoke.c
@@ -173,13 +173,13 @@ int __init journal_init_revoke_caches(void)
0,
SLAB_HWCACHE_ALIGN|SLAB_TEMPORARY,
NULL);
- if (revoke_record_cache == 0)
+ if (!revoke_record_cache)
return -ENOMEM;
revoke_table_cache = kmem_cache_create("revoke_table",
sizeof(struct jbd_revoke_table_s),
0, SLAB_TEMPORARY, NULL);
- if (revoke_table_cache == 0) {
+ if (!revoke_table_cache) {
kmem_cache_destroy(revoke_record_cache);
revoke_record_cache = NULL;
return -ENOMEM;
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 96ba846..748b87c 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -219,7 +219,7 @@ 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 != NULL);
return 0;
}
@@ -231,7 +231,7 @@ 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 == NULL);
spin_lock(&journal->j_state_lock);
}
spin_unlock(&journal->j_state_lock);
@@ -1969,14 +1969,14 @@ 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 */
SLAB_TEMPORARY, /* 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");
}
@@ -2002,14 +2002,14 @@ 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 df36f42..2e1453a 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -174,13 +174,13 @@ int __init jbd2_journal_init_revoke_caches(void)
0,
SLAB_HWCACHE_ALIGN|SLAB_TEMPORARY,
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, SLAB_TEMPORARY, 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;
--
1.5.4.rc5.1138.g2602
--
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