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[PATCH] I2O: Optimizing

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- make i2o_iop_free() static inline (from Adrian Bunk)

- changed kmalloc() + memset(0) into kzalloc()

Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Markus Lidel 2006-01-06 00:19:33 -08:00 committed by Linus Torvalds
parent 2e1973a3cd
commit f6ed39a6e1
8 changed files with 22 additions and 35 deletions
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2
drivers/message/i2o/config-osm.c
View file

@ -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 */

11
drivers/message/i2o/core.h
View file

@ -40,7 +40,16 @@ extern int i2o_device_parse_lct(struct i2o_controller *);
/* 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 *);

4
drivers/message/i2o/device.c
View file

@ -195,12 +195,10 @@ static struct i2o_device *i2o_device_alloc(void)
{
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);

7
drivers/message/i2o/driver.c
View file

@ -217,10 +217,9 @@ int i2o_driver_dispatch(struct i2o_controller *c, u32 m)
/* 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)

4
drivers/message/i2o/exec-osm.c
View file

@ -75,12 +75,10 @@ static struct i2o_exec_wait *i2o_exec_wait_alloc(void)
{
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;

5
drivers/message/i2o/i2o_block.c
View file

@ -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_block_device_alloc(void)
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);

6
drivers/message/i2o/i2o_config.c
View file

@ -583,13 +583,12 @@ static int i2o_cfg_passthru32(struct file *file, unsigned cmnd,
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 long arg)
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;

18
drivers/message/i2o/iop.c
View file

@ -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;
@ -1019,16 +1018,6 @@ static int i2o_hrt_get(struct i2o_controller *c)
return -EBUSY;
}
/**
* 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(void)
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);