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ia64: use non-racy method for proc entries creation 

Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data
be setup before gluing PDE to main tree.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Denis V. Lunev 2008-04-29 01:02:25 -07:00 committed by Linus Torvalds
parent c293819a3c
commit e23637681b
5 changed files with 20 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/ia64/hp/common/sba_iommu.c
View File

@ -1932,15 +1932,13 @@ static const struct file_operations ioc_fops = {
static void __init
ioc_proc_init(void)
{
struct proc_dir_entry *dir, *entry;
struct proc_dir_entry *dir;
dir = proc_mkdir("bus/mckinley", NULL);
if (!dir)
return;
entry = create_proc_entry(ioc_list->name, 0, dir);
if (entry)
entry->proc_fops = &ioc_fops;
proc_create(ioc_list->name, 0, dir, &ioc_fops);
}
#endif

6
arch/ia64/kernel/perfmon.c
View File

@ -6695,16 +6695,12 @@ pfm_init(void)
/*
* create /proc/perfmon (mostly for debugging purposes)
*/
perfmon_dir = create_proc_entry("perfmon", S_IRUGO, NULL);
perfmon_dir = proc_create("perfmon", S_IRUGO, NULL, &pfm_proc_fops);
if (perfmon_dir == NULL) {
printk(KERN_ERR "perfmon: cannot create /proc entry, perfmon disabled\n");
pmu_conf = NULL;
return -1;
}
/*
* install customized file operations for /proc/perfmon entry
*/
perfmon_dir->proc_fops = &pfm_proc_fops;
/*
* create /proc/sys/kernel/perfmon (for debugging purposes)

10
arch/ia64/kernel/salinfo.c
View File

@ -648,18 +648,16 @@ salinfo_init(void)
if (!dir)
continue;
entry = create_proc_entry("event", S_IRUSR, dir);
entry = proc_create_data("event", S_IRUSR, dir,
&salinfo_event_fops, data);
if (!entry)
continue;
entry->data = data;
entry->proc_fops = &salinfo_event_fops;
*sdir++ = entry;
entry = create_proc_entry("data", S_IRUSR | S_IWUSR, dir);
entry = proc_create_data("data", S_IRUSR | S_IWUSR, dir,
&salinfo_data_fops, data);
if (!entry)
continue;
entry->data = data;
entry->proc_fops = &salinfo_data_fops;
*sdir++ = entry;
/* we missed any events before now */

5
arch/ia64/sn/kernel/sn2/sn2_smp.c
View File

@ -550,11 +550,12 @@ static int __init sn2_ptc_init(void)
if (!ia64_platform_is("sn2"))
return 0;
if (!(proc_sn2_ptc = create_proc_entry(PTC_BASENAME, 0444, NULL))) {
proc_sn2_ptc = proc_create(PTC_BASENAME, 0444,
NULL, &proc_sn2_ptc_operations);
if (!&proc_sn2_ptc_operations) {
printk(KERN_ERR "unable to create %s proc entry", PTC_BASENAME);
return -EINVAL;
}
proc_sn2_ptc->proc_fops = &proc_sn2_ptc_operations;
spin_lock_init(&sn2_global_ptc_lock);
return 0;
}

29
arch/ia64/sn/kernel/sn2/sn_proc_fs.c
View File

@ -139,30 +139,21 @@ static const struct file_operations proc_sn_topo_fops = {
void register_sn_procfs(void)
{
static struct proc_dir_entry *sgi_proc_dir = NULL;
struct proc_dir_entry *pde;
BUG_ON(sgi_proc_dir != NULL);
if (!(sgi_proc_dir = proc_mkdir("sgi_sn", NULL)))
return;
pde = create_proc_entry("partition_id", 0444, sgi_proc_dir);
if (pde)
pde->proc_fops = &proc_partition_id_fops;
pde = create_proc_entry("system_serial_number", 0444, sgi_proc_dir);
if (pde)
pde->proc_fops = &proc_system_sn_fops;
pde = create_proc_entry("licenseID", 0444, sgi_proc_dir);
if (pde)
pde->proc_fops = &proc_license_id_fops;
pde = create_proc_entry("sn_force_interrupt", 0644, sgi_proc_dir);
if (pde)
pde->proc_fops = &proc_sn_force_intr_fops;
pde = create_proc_entry("coherence_id", 0444, sgi_proc_dir);
if (pde)
pde->proc_fops = &proc_coherence_id_fops;
pde = create_proc_entry("sn_topology", 0444, sgi_proc_dir);
if (pde)
pde->proc_fops = &proc_sn_topo_fops;
proc_create("partition_id", 0444, sgi_proc_dir,
&proc_partition_id_fops);
proc_create("system_serial_number", 0444, sgi_proc_dir,
&proc_system_sn_fops);
proc_create("licenseID", 0444, sgi_proc_dir, &proc_license_id_fops);
proc_create("sn_force_interrupt", 0644, sgi_proc_dir,
&proc_sn_force_intr_fops);
proc_create("coherence_id", 0444, sgi_proc_dir,
&proc_coherence_id_fops);
proc_create("sn_topology", 0444, sgi_proc_dir, &proc_sn_topo_fops);
}
#endif /* CONFIG_PROC_FS */