From: Jes Sorensen Date: Mon, 16 Jan 2006 15:31:18 +0000 (-0500) Subject: [SCSI] SCSI core kmalloc2kzalloc X-Git-Tag: v2.6.17-rc1~1129^2~4^2~139 X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=24669f75a3231fa37444977c92d1f4838bec1233;p=pandora-kernel.git [SCSI] SCSI core kmalloc2kzalloc Change the core SCSI code to use kzalloc rather than kmalloc+memset where possible. Signed-off-by: Jes Sorensen Signed-off-by: James Bottomley --- diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 588107923499..ef57f253031c 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -306,10 +306,9 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize) dump_stack(); } - shost = kmalloc(sizeof(struct Scsi_Host) + privsize, gfp_mask); + shost = kzalloc(sizeof(struct Scsi_Host) + privsize, gfp_mask); if (!shost) return NULL; - memset(shost, 0, sizeof(struct Scsi_Host) + privsize); spin_lock_init(&shost->default_lock); scsi_assign_lock(shost, &shost->default_lock); diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index c551bb84dbfb..11b27ba0cd41 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -136,9 +136,8 @@ struct scsi_request *scsi_allocate_request(struct scsi_device *sdev, const int size = offset + sizeof(struct request); struct scsi_request *sreq; - sreq = kmalloc(size, gfp_mask); + sreq = kzalloc(size, gfp_mask); if (likely(sreq != NULL)) { - memset(sreq, 0, size); sreq->sr_request = (struct request *)(((char *)sreq) + offset); sreq->sr_device = sdev; sreq->sr_host = sdev->host; diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 0e529f8171c4..5a5d2af8ee43 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -1061,13 +1061,12 @@ static struct sdebug_dev_info * devInfoReg(struct scsi_device * sdev) } } if (NULL == open_devip) { /* try and make a new one */ - open_devip = kmalloc(sizeof(*open_devip),GFP_KERNEL); + open_devip = kzalloc(sizeof(*open_devip),GFP_KERNEL); if (NULL == open_devip) { printk(KERN_ERR "%s: out of memory at line %d\n", __FUNCTION__, __LINE__); return NULL; } - memset(open_devip, 0, sizeof(*open_devip)); open_devip->sdbg_host = sdbg_host; list_add_tail(&open_devip->dev_list, &sdbg_host->dev_info_list); @@ -1814,7 +1813,7 @@ static int sdebug_add_adapter(void) struct sdebug_dev_info *sdbg_devinfo; struct list_head *lh, *lh_sf; - sdbg_host = kmalloc(sizeof(*sdbg_host),GFP_KERNEL); + sdbg_host = kzalloc(sizeof(*sdbg_host), GFP_KERNEL); if (NULL == sdbg_host) { printk(KERN_ERR "%s: out of memory at line %d\n", @@ -1822,19 +1821,17 @@ static int sdebug_add_adapter(void) return -ENOMEM; } - memset(sdbg_host, 0, sizeof(*sdbg_host)); INIT_LIST_HEAD(&sdbg_host->dev_info_list); devs_per_host = scsi_debug_num_tgts * scsi_debug_max_luns; for (k = 0; k < devs_per_host; k++) { - sdbg_devinfo = kmalloc(sizeof(*sdbg_devinfo),GFP_KERNEL); + sdbg_devinfo = kzalloc(sizeof(*sdbg_devinfo), GFP_KERNEL); if (NULL == sdbg_devinfo) { printk(KERN_ERR "%s: out of memory at line %d\n", __FUNCTION__, __LINE__); error = -ENOMEM; goto clean; } - memset(sdbg_devinfo, 0, sizeof(*sdbg_devinfo)); sdbg_devinfo->sdbg_host = sdbg_host; list_add_tail(&sdbg_devinfo->dev_list, &sdbg_host->dev_info_list); diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c index 0bba7d8eebb0..36e930066649 100644 --- a/drivers/scsi/scsi_ioctl.c +++ b/drivers/scsi/scsi_ioctl.c @@ -241,10 +241,9 @@ int scsi_ioctl_send_command(struct scsi_device *sdev, buf_needed = (buf_needed + 511) & ~511; if (buf_needed > MAX_BUF) buf_needed = MAX_BUF; - buf = kmalloc(buf_needed, gfp_mask); + buf = kzalloc(buf_needed, gfp_mask); if (!buf) return -ENOMEM; - memset(buf, 0, buf_needed); if (inlen == 0) { data_direction = DMA_FROM_DEVICE; } else if (outlen == 0 ) { diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 4362dcde74af..1fe4fd83e305 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -286,13 +286,12 @@ int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd, int result; if (sshdr) { - sense = kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_NOIO); + sense = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_NOIO); if (!sense) return DRIVER_ERROR << 24; - memset(sense, 0, SCSI_SENSE_BUFFERSIZE); } result = scsi_execute(sdev, cmd, data_direction, buffer, bufflen, - sense, timeout, retries, 0); + sense, timeout, retries, 0); if (sshdr) scsi_normalize_sense(sense, SCSI_SENSE_BUFFERSIZE, sshdr); diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 5acb83ca5ae5..74863da1d630 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -205,12 +205,11 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, int display_failure_msg = 1, ret; struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); - sdev = kmalloc(sizeof(*sdev) + shost->transportt->device_size, + sdev = kzalloc(sizeof(*sdev) + shost->transportt->device_size, GFP_ATOMIC); if (!sdev) goto out; - memset(sdev, 0, sizeof(*sdev)); sdev->vendor = scsi_null_device_strs; sdev->model = scsi_null_device_strs; sdev->rev = scsi_null_device_strs; @@ -334,12 +333,11 @@ static struct scsi_target *scsi_alloc_target(struct device *parent, struct scsi_target *starget; struct scsi_target *found_target; - starget = kmalloc(size, GFP_KERNEL); + starget = kzalloc(size, GFP_KERNEL); if (!starget) { printk(KERN_ERR "%s: allocation failure\n", __FUNCTION__); return NULL; } - memset(starget, 0, size); dev = &starget->dev; device_initialize(dev); starget->reap_ref = 1; diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index f2c9acf11bd0..56012b2694d2 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -1115,15 +1115,13 @@ static int fc_user_scan(struct Scsi_Host *shost, uint channel, struct scsi_transport_template * fc_attach_transport(struct fc_function_template *ft) { - struct fc_internal *i = kmalloc(sizeof(struct fc_internal), - GFP_KERNEL); int count; + struct fc_internal *i = kzalloc(sizeof(struct fc_internal), + GFP_KERNEL); if (unlikely(!i)) return NULL; - memset(i, 0, sizeof(struct fc_internal)); - i->t.target_attrs.ac.attrs = &i->starget_attrs[0]; i->t.target_attrs.ac.class = &fc_transport_class.class; i->t.target_attrs.ac.match = fc_target_match; @@ -1305,12 +1303,11 @@ fc_rport_create(struct Scsi_Host *shost, int channel, size_t size; size = (sizeof(struct fc_rport) + fci->f->dd_fcrport_size); - rport = kmalloc(size, GFP_KERNEL); + rport = kzalloc(size, GFP_KERNEL); if (unlikely(!rport)) { printk(KERN_ERR "%s: allocation failure\n", __FUNCTION__); return NULL; } - memset(rport, 0, size); rport->maxframe_size = -1; rport->supported_classes = FC_COS_UNSPECIFIED; Reading git-diff-tree failed