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path: root/drivers/staging/lustre/lustre/fld/fld_request.c
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Diffstat (limited to 'drivers/staging/lustre/lustre/fld/fld_request.c')
-rw-r--r--drivers/staging/lustre/lustre/fld/fld_request.c69
1 files changed, 34 insertions, 35 deletions
diff --git a/drivers/staging/lustre/lustre/fld/fld_request.c b/drivers/staging/lustre/lustre/fld/fld_request.c
index d92c01b74865..a3d122d85c8d 100644
--- a/drivers/staging/lustre/lustre/fld/fld_request.c
+++ b/drivers/staging/lustre/lustre/fld/fld_request.c
@@ -58,7 +58,8 @@
#include "fld_internal.h"
/* TODO: these 3 functions are copies of flow-control code from mdc_lib.c
- * It should be common thing. The same about mdc RPC lock */
+ * It should be common thing. The same about mdc RPC lock
+ */
static int fld_req_avail(struct client_obd *cli, struct mdc_cache_waiter *mcw)
{
int rc;
@@ -124,7 +125,8 @@ fld_rrb_scan(struct lu_client_fld *fld, u64 seq)
* it should go to index 0 directly, instead of calculating
* hash again, and also if other MDTs is not being connected,
* the fld lookup requests(for seq on MDT0) should not be
- * blocked because of other MDTs */
+ * blocked because of other MDTs
+ */
if (fid_seq_is_norm(seq))
hash = fld_rrb_hash(fld, seq);
else
@@ -139,18 +141,19 @@ again:
if (hash != 0) {
/* It is possible the remote target(MDT) are not connected to
* with client yet, so we will refer this to MDT0, which should
- * be connected during mount */
+ * be connected during mount
+ */
hash = 0;
goto again;
}
CERROR("%s: Can't find target by hash %d (seq %#llx). Targets (%d):\n",
- fld->lcf_name, hash, seq, fld->lcf_count);
+ 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 +186,13 @@ 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);
}
@@ -207,18 +210,18 @@ 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",
- fld->lcf_name, name, tar->ft_idx);
+ fld->lcf_name, name, tar->ft_idx);
return 0;
}
CDEBUG(D_INFO, "%s: Adding target %s (idx %llu)\n",
- fld->lcf_name, name, tar->ft_idx);
+ fld->lcf_name, name, tar->ft_idx);
target = kzalloc(sizeof(*target), GFP_NOFS);
if (!target)
@@ -236,13 +239,12 @@ 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;
- list_add_tail(&target->ft_chain,
- &fld->lcf_targets);
+ list_add_tail(&target->ft_chain, &fld->lcf_targets);
fld->lcf_count++;
spin_unlock(&fld->lcf_lock);
@@ -257,14 +259,13 @@ int fld_client_del_target(struct lu_client_fld *fld, __u64 idx)
struct lu_fld_target *target, *tmp;
spin_lock(&fld->lcf_lock);
- list_for_each_entry_safe(target, tmp,
- &fld->lcf_targets, ft_chain) {
+ list_for_each_entry_safe(target, tmp, &fld->lcf_targets, ft_chain) {
if (target->ft_idx == idx) {
fld->lcf_count--;
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 +327,6 @@ 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);
@@ -375,17 +374,16 @@ void fld_client_fini(struct lu_client_fld *fld)
struct lu_fld_target *target, *tmp;
spin_lock(&fld->lcf_lock);
- list_for_each_entry_safe(target, tmp,
- &fld->lcf_targets, ft_chain) {
+ list_for_each_entry_safe(target, tmp, &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;
}
@@ -463,10 +461,10 @@ 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);
+ fld->lcf_name, seq, fld_target_name(target), target->ft_idx);
res.lsr_start = seq;
fld_range_set_type(&res, flags);
@@ -487,7 +485,7 @@ void fld_client_flush(struct lu_client_fld *fld)
}
EXPORT_SYMBOL(fld_client_flush);
-static int __init fld_mod_init(void)
+static int __init fld_init(void)
{
fld_debugfs_dir = ldebugfs_register(LUSTRE_FLD_NAME,
debugfs_lustre_root,
@@ -495,15 +493,16 @@ static int __init fld_mod_init(void)
return PTR_ERR_OR_ZERO(fld_debugfs_dir);
}
-static void __exit fld_mod_exit(void)
+static void __exit fld_exit(void)
{
if (!IS_ERR_OR_NULL(fld_debugfs_dir))
ldebugfs_remove(&fld_debugfs_dir);
}
MODULE_AUTHOR("OpenSFS, Inc. <http://www.lustre.org/>");
-MODULE_DESCRIPTION("Lustre FLD");
+MODULE_DESCRIPTION("Lustre FID Location Database");
+MODULE_VERSION(LUSTRE_VERSION_STRING);
MODULE_LICENSE("GPL");
-module_init(fld_mod_init)
-module_exit(fld_mod_exit)
+module_init(fld_init)
+module_exit(fld_exit)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.