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Message-Id: <1455601637-3847710-19-git-send-email-green@linuxhacker.ru>
Date: Tue, 16 Feb 2016 00:46:50 -0500
From: green@...uxhacker.ru
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
devel@...verdev.osuosl.org,
Andreas Dilger <andreas.dilger@...el.com>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Lustre Development List <lustre-devel@...ts.lustre.org>,
Oleg Drokin <green@...uxhacker.ru>
Subject: [PATCH 18/45] staging/lustre/fld: Adjust NULL comparison codestyle
From: Oleg Drokin <green@...uxhacker.ru>
All instances of "x == NULL" are changed to "!x" and
"x != NULL" to "x"
Signed-off-by: Oleg Drokin <green@...uxhacker.ru>
---
drivers/staging/lustre/lustre/fld/fld_cache.c | 10 +++-----
drivers/staging/lustre/lustre/fld/fld_internal.h | 2 +-
drivers/staging/lustre/lustre/fld/fld_request.c | 32 +++++++++++-------------
drivers/staging/lustre/lustre/fld/lproc_fld.c | 11 ++------
4 files changed, 22 insertions(+), 33 deletions(-)
diff --git a/drivers/staging/lustre/lustre/fld/fld_cache.c b/drivers/staging/lustre/lustre/fld/fld_cache.c
index d9459e5..a7026a9 100644
--- a/drivers/staging/lustre/lustre/fld/fld_cache.c
+++ b/drivers/staging/lustre/lustre/fld/fld_cache.c
@@ -65,7 +65,7 @@ struct fld_cache *fld_cache_init(const char *name,
{
struct fld_cache *cache;
- LASSERT(name != NULL);
+ LASSERT(name);
LASSERT(cache_threshold < cache_size);
cache = kzalloc(sizeof(*cache), GFP_NOFS);
@@ -100,7 +100,7 @@ void fld_cache_fini(struct fld_cache *cache)
{
__u64 pct;
- LASSERT(cache != NULL);
+ LASSERT(cache);
fld_cache_flush(cache);
if (cache->fci_stat.fst_count > 0) {
@@ -218,8 +218,6 @@ static int fld_cache_shrink(struct fld_cache *cache)
struct list_head *curr;
int num = 0;
- LASSERT(cache != NULL);
-
if (cache->fci_cache_count < cache->fci_cache_size)
return 0;
@@ -414,7 +412,7 @@ static int fld_cache_insert_nolock(struct fld_cache *cache,
}
}
- if (prev == NULL)
+ if (!prev)
prev = head;
CDEBUG(D_INFO, "insert range "DRANGE"\n", PRANGE(&f_new->fce_range));
@@ -499,7 +497,7 @@ int fld_cache_lookup(struct fld_cache *cache,
cache->fci_stat.fst_count++;
list_for_each_entry(flde, head, fce_list) {
if (flde->fce_range.lsr_start > seq) {
- if (prev != NULL)
+ if (prev)
*range = prev->fce_range;
break;
}
diff --git a/drivers/staging/lustre/lustre/fld/fld_internal.h b/drivers/staging/lustre/lustre/fld/fld_internal.h
index 12eb164..59eabda 100644
--- a/drivers/staging/lustre/lustre/fld/fld_internal.h
+++ b/drivers/staging/lustre/lustre/fld/fld_internal.h
@@ -169,7 +169,7 @@ struct fld_cache_entry
static inline const char *
fld_target_name(struct lu_fld_target *tar)
{
- if (tar->ft_srv != NULL)
+ if (tar->ft_srv)
return tar->ft_srv->lsf_name;
return (const char *)tar->ft_exp->exp_obd->obd_name;
diff --git a/drivers/staging/lustre/lustre/fld/fld_request.c b/drivers/staging/lustre/lustre/fld/fld_request.c
index d92c01b..222d18d 100644
--- a/drivers/staging/lustre/lustre/fld/fld_request.c
+++ b/drivers/staging/lustre/lustre/fld/fld_request.c
@@ -148,9 +148,9 @@ again:
fld->lcf_name, hash, seq, fld->lcf_count);
list_for_each_entry(target, &fld->lcf_targets, ft_chain) {
- const char *srv_name = target->ft_srv != NULL ?
+ const char *srv_name = target->ft_srv ?
target->ft_srv->lsf_name : "<null>";
- const char *exp_name = target->ft_exp != NULL ?
+ const char *exp_name = target->ft_exp ?
(char *)target->ft_exp->exp_obd->obd_uuid.uuid :
"<null>";
@@ -183,13 +183,13 @@ fld_client_get_target(struct lu_client_fld *fld, u64 seq)
{
struct lu_fld_target *target;
- LASSERT(fld->lcf_hash != NULL);
+ LASSERT(fld->lcf_hash);
spin_lock(&fld->lcf_lock);
target = fld->lcf_hash->fh_scan_func(fld, seq);
spin_unlock(&fld->lcf_lock);
- if (target != NULL) {
+ if (target) {
CDEBUG(D_INFO, "%s: Found target (idx %llu) by seq %#llx\n",
fld->lcf_name, target->ft_idx, seq);
}
@@ -207,10 +207,10 @@ int fld_client_add_target(struct lu_client_fld *fld,
const char *name;
struct lu_fld_target *target, *tmp;
- LASSERT(tar != NULL);
+ LASSERT(tar);
name = fld_target_name(tar);
- LASSERT(name != NULL);
- LASSERT(tar->ft_srv != NULL || tar->ft_exp != NULL);
+ LASSERT(name);
+ LASSERT(tar->ft_srv || tar->ft_exp);
if (fld->lcf_flags != LUSTRE_FLD_INIT) {
CERROR("%s: Attempt to add target %s (idx %llu) on fly - skip it\n",
@@ -236,7 +236,7 @@ int fld_client_add_target(struct lu_client_fld *fld,
}
target->ft_exp = tar->ft_exp;
- if (target->ft_exp != NULL)
+ if (target->ft_exp)
class_export_get(target->ft_exp);
target->ft_srv = tar->ft_srv;
target->ft_idx = tar->ft_idx;
@@ -264,7 +264,7 @@ int fld_client_del_target(struct lu_client_fld *fld, __u64 idx)
list_del(&target->ft_chain);
spin_unlock(&fld->lcf_lock);
- if (target->ft_exp != NULL)
+ if (target->ft_exp)
class_export_put(target->ft_exp);
kfree(target);
@@ -326,8 +326,6 @@ int fld_client_init(struct lu_client_fld *fld,
int cache_size, cache_threshold;
int rc;
- LASSERT(fld != NULL);
-
snprintf(fld->lcf_name, sizeof(fld->lcf_name),
"cli-%s", prefix);
@@ -379,13 +377,13 @@ void fld_client_fini(struct lu_client_fld *fld)
&fld->lcf_targets, ft_chain) {
fld->lcf_count--;
list_del(&target->ft_chain);
- if (target->ft_exp != NULL)
+ if (target->ft_exp)
class_export_put(target->ft_exp);
kfree(target);
}
spin_unlock(&fld->lcf_lock);
- if (fld->lcf_cache != NULL) {
+ if (fld->lcf_cache) {
if (!IS_ERR(fld->lcf_cache))
fld_cache_fini(fld->lcf_cache);
fld->lcf_cache = NULL;
@@ -402,12 +400,12 @@ int fld_client_rpc(struct obd_export *exp,
int rc;
struct obd_import *imp;
- LASSERT(exp != NULL);
+ LASSERT(exp);
imp = class_exp2cliimp(exp);
req = ptlrpc_request_alloc_pack(imp, &RQF_FLD_QUERY, LUSTRE_MDS_VERSION,
FLD_QUERY);
- if (req == NULL)
+ if (!req)
return -ENOMEM;
op = req_capsule_client_get(&req->rq_pill, &RMF_FLD_OPC);
@@ -436,7 +434,7 @@ int fld_client_rpc(struct obd_export *exp,
goto out_req;
prange = req_capsule_server_get(&req->rq_pill, &RMF_FLD_MDFLD);
- if (prange == NULL) {
+ if (!prange) {
rc = -EFAULT;
goto out_req;
}
@@ -463,7 +461,7 @@ int fld_client_lookup(struct lu_client_fld *fld, u64 seq, u32 *mds,
/* Can not find it in the cache */
target = fld_client_get_target(fld, seq);
- LASSERT(target != NULL);
+ LASSERT(target);
CDEBUG(D_INFO, "%s: Lookup fld entry (seq: %#llx) on target %s (idx %llu)\n",
fld->lcf_name, seq, fld_target_name(target), target->ft_idx);
diff --git a/drivers/staging/lustre/lustre/fld/lproc_fld.c b/drivers/staging/lustre/lustre/fld/lproc_fld.c
index 41ceaa8..da31281 100644
--- a/drivers/staging/lustre/lustre/fld/lproc_fld.c
+++ b/drivers/staging/lustre/lustre/fld/lproc_fld.c
@@ -60,8 +60,6 @@ fld_debugfs_targets_seq_show(struct seq_file *m, void *unused)
struct lu_client_fld *fld = (struct lu_client_fld *)m->private;
struct lu_fld_target *target;
- LASSERT(fld != NULL);
-
spin_lock(&fld->lcf_lock);
list_for_each_entry(target,
&fld->lcf_targets, ft_chain)
@@ -76,8 +74,6 @@ fld_debugfs_hash_seq_show(struct seq_file *m, void *unused)
{
struct lu_client_fld *fld = (struct lu_client_fld *)m->private;
- LASSERT(fld != NULL);
-
spin_lock(&fld->lcf_lock);
seq_printf(m, "%s\n", fld->lcf_hash->fh_name);
spin_unlock(&fld->lcf_lock);
@@ -102,9 +98,8 @@ fld_debugfs_hash_seq_write(struct file *file,
return -EFAULT;
fld = ((struct seq_file *)file->private_data)->private;
- LASSERT(fld != NULL);
- for (i = 0; fld_hash[i].fh_name != NULL; i++) {
+ for (i = 0; fld_hash[i].fh_name; i++) {
if (count != strlen(fld_hash[i].fh_name))
continue;
@@ -114,7 +109,7 @@ fld_debugfs_hash_seq_write(struct file *file,
}
}
- if (hash != NULL) {
+ if (hash) {
spin_lock(&fld->lcf_lock);
fld->lcf_hash = hash;
spin_unlock(&fld->lcf_lock);
@@ -132,8 +127,6 @@ fld_debugfs_cache_flush_write(struct file *file, const char __user *buffer,
{
struct lu_client_fld *fld = file->private_data;
- LASSERT(fld != NULL);
-
fld_cache_flush(fld->lcf_cache);
CDEBUG(D_INFO, "%s: Lookup cache is flushed\n", fld->lcf_name);
--
2.1.0
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