From: Markus Lidel <Markus.Lidel@shadowconnect.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: [PATCH 6/7] I2O: Optimizing
Date: Fri, 16 Dec 2005 01:30:35 +0100 [thread overview]
Message-ID: <43A20AAB.5060303@shadowconnect.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 182 bytes --]
Changes:
--------
- make i2o_iop_free() static inline (from Adrian Bunk)
- changed kmalloc() + memset(0) into kzalloc()
Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
[-- Attachment #2: i2o-optimizing.patch --]
[-- Type: text/x-patch, Size: 6731 bytes --]
Index: linux-2.6/drivers/message/i2o/core.h
===================================================================
--- linux-2.6.orig/drivers/message/i2o/core.h
+++ linux-2.6/drivers/message/i2o/core.h
@@ -40,7 +40,16 @@ extern int i2o_device_parse_lct(struct i
/* IOP */
extern struct i2o_controller *i2o_iop_alloc(void);
-extern void i2o_iop_free(struct i2o_controller *);
+
+/**
+ * i2o_iop_free - Free the i2o_controller struct
+ * @c: I2O controller to free
+ */
+static inline void i2o_iop_free(struct i2o_controller *c)
+{
+ i2o_pool_free(&c->in_msg);
+ kfree(c);
+}
extern int i2o_iop_add(struct i2o_controller *);
extern void i2o_iop_remove(struct i2o_controller *);
Index: linux-2.6/drivers/message/i2o/iop.c
===================================================================
--- linux-2.6.orig/drivers/message/i2o/iop.c
+++ linux-2.6/drivers/message/i2o/iop.c
@@ -32,7 +32,7 @@
#include "core.h"
#define OSM_NAME "i2o"
-#define OSM_VERSION "1.316"
+#define OSM_VERSION "1.325"
#define OSM_DESCRIPTION "I2O subsystem"
/* global I2O controller list */
@@ -838,12 +838,11 @@ static int i2o_systab_build(void)
i2o_systab.len = sizeof(struct i2o_sys_tbl) + num_controllers *
sizeof(struct i2o_sys_tbl_entry);
- systab = i2o_systab.virt = kmalloc(i2o_systab.len, GFP_KERNEL);
+ systab = i2o_systab.virt = kzalloc(i2o_systab.len, GFP_KERNEL);
if (!systab) {
osm_err("unable to allocate memory for System Table\n");
return -ENOMEM;
}
- memset(systab, 0, i2o_systab.len);
systab->version = I2OVERSION;
systab->change_ind = change_ind + 1;
@@ -1020,16 +1019,6 @@ static int i2o_hrt_get(struct i2o_contro
}
/**
- * i2o_iop_free - Free the i2o_controller struct
- * @c: I2O controller to free
- */
-void i2o_iop_free(struct i2o_controller *c)
-{
- i2o_pool_free(&c->in_msg);
- kfree(c);
-};
-
-/**
* i2o_iop_release - release the memory for a I2O controller
* @dev: I2O controller which should be released
*
@@ -1058,13 +1047,12 @@ struct i2o_controller *i2o_iop_alloc(voi
struct i2o_controller *c;
char poolname[32];
- c = kmalloc(sizeof(*c), GFP_KERNEL);
+ c = kzalloc(sizeof(*c), GFP_KERNEL);
if (!c) {
osm_err("i2o: Insufficient memory to allocate a I2O controller."
"\n");
return ERR_PTR(-ENOMEM);
}
- memset(c, 0, sizeof(*c));
c->unit = unit++;
sprintf(c->name, "iop%d", c->unit);
Index: linux-2.6/drivers/message/i2o/config-osm.c
===================================================================
--- linux-2.6.orig/drivers/message/i2o/config-osm.c
+++ linux-2.6/drivers/message/i2o/config-osm.c
@@ -22,7 +22,7 @@
#include <asm/uaccess.h>
#define OSM_NAME "config-osm"
-#define OSM_VERSION "1.317"
+#define OSM_VERSION "1.323"
#define OSM_DESCRIPTION "I2O Configuration OSM"
/* access mode user rw */
Index: linux-2.6/drivers/message/i2o/device.c
===================================================================
--- linux-2.6.orig/drivers/message/i2o/device.c
+++ linux-2.6/drivers/message/i2o/device.c
@@ -195,12 +195,10 @@ static struct i2o_device *i2o_device_all
{
struct i2o_device *dev;
- dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev)
return ERR_PTR(-ENOMEM);
- memset(dev, 0, sizeof(*dev));
-
INIT_LIST_HEAD(&dev->list);
init_MUTEX(&dev->lock);
Index: linux-2.6/drivers/message/i2o/driver.c
===================================================================
--- linux-2.6.orig/drivers/message/i2o/driver.c
+++ linux-2.6/drivers/message/i2o/driver.c
@@ -217,10 +217,9 @@ int i2o_driver_dispatch(struct i2o_contr
/* cut of header from message size (in 32-bit words) */
size = (le32_to_cpu(msg->u.head[0]) >> 16) - 5;
- evt = kmalloc(size * 4 + sizeof(*evt), GFP_ATOMIC);
+ evt = kzalloc(size * 4 + sizeof(*evt), GFP_ATOMIC);
if (!evt)
return -ENOMEM;
- memset(evt, 0, size * 4 + sizeof(*evt));
evt->size = size;
evt->tcntxt = le32_to_cpu(msg->u.s.tcntxt);
@@ -348,12 +347,10 @@ int __init i2o_driver_init(void)
osm_info("max drivers = %d\n", i2o_max_drivers);
i2o_drivers =
- kmalloc(i2o_max_drivers * sizeof(*i2o_drivers), GFP_KERNEL);
+ kzalloc(i2o_max_drivers * sizeof(*i2o_drivers), GFP_KERNEL);
if (!i2o_drivers)
return -ENOMEM;
- memset(i2o_drivers, 0, i2o_max_drivers * sizeof(*i2o_drivers));
-
rc = bus_register(&i2o_bus_type);
if (rc < 0)
Index: linux-2.6/drivers/message/i2o/exec-osm.c
===================================================================
--- linux-2.6.orig/drivers/message/i2o/exec-osm.c
+++ linux-2.6/drivers/message/i2o/exec-osm.c
@@ -75,12 +75,10 @@ static struct i2o_exec_wait *i2o_exec_wa
{
struct i2o_exec_wait *wait;
- wait = kmalloc(sizeof(*wait), GFP_KERNEL);
+ wait = kzalloc(sizeof(*wait), GFP_KERNEL);
if (!wait)
return NULL;
- memset(wait, 0, sizeof(*wait));
-
INIT_LIST_HEAD(&wait->list);
return wait;
Index: linux-2.6/drivers/message/i2o/i2o_block.c
===================================================================
--- linux-2.6.orig/drivers/message/i2o/i2o_block.c
+++ linux-2.6/drivers/message/i2o/i2o_block.c
@@ -64,7 +64,7 @@
#include "i2o_block.h"
#define OSM_NAME "block-osm"
-#define OSM_VERSION "1.316"
+#define OSM_VERSION "1.325"
#define OSM_DESCRIPTION "I2O Block Device OSM"
static struct i2o_driver i2o_block_driver;
@@ -981,13 +981,12 @@ static struct i2o_block_device *i2o_bloc
struct request_queue *queue;
int rc;
- dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev) {
osm_err("Insufficient memory to allocate I2O Block disk.\n");
rc = -ENOMEM;
goto exit;
}
- memset(dev, 0, sizeof(*dev));
INIT_LIST_HEAD(&dev->open_queue);
spin_lock_init(&dev->lock);
Index: linux-2.6/drivers/message/i2o/i2o_config.c
===================================================================
--- linux-2.6.orig/drivers/message/i2o/i2o_config.c
+++ linux-2.6/drivers/message/i2o/i2o_config.c
@@ -583,13 +583,12 @@ static int i2o_cfg_passthru32(struct fil
reply_size >>= 16;
reply_size <<= 2;
- reply = kmalloc(reply_size, GFP_KERNEL);
+ reply = kzalloc(reply_size, GFP_KERNEL);
if (!reply) {
printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
c->name);
return -ENOMEM;
}
- memset(reply, 0, reply_size);
sg_offset = (msg->u.head[0] >> 4) & 0x0f;
@@ -817,13 +816,12 @@ static int i2o_cfg_passthru(unsigned lon
reply_size >>= 16;
reply_size <<= 2;
- reply = kmalloc(reply_size, GFP_KERNEL);
+ reply = kzalloc(reply_size, GFP_KERNEL);
if (!reply) {
printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
c->name);
return -ENOMEM;
}
- memset(reply, 0, reply_size);
sg_offset = (msg->u.head[0] >> 4) & 0x0f;
reply other threads:[~2005-12-16 0:31 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=43A20AAB.5060303@shadowconnect.com \
--to=markus.lidel@shadowconnect.com \
--cc=akpm@osdl.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.