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authorDenis V. Lunev <den@openvz.org>2008-04-29 01:02:25 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-29 08:06:21 -0700
commite23637681bef5b69a68c8ac399732b941f1af023 (patch)
tree90cc355ac83b58080da3213b99351717d9f0ffb6 /arch/ia64/sn
parentc293819a3caa77d96b801a7795f81a5913ec21d7 (diff)
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>
Diffstat (limited to 'arch/ia64/sn')
-rw-r--r--arch/ia64/sn/kernel/sn2/sn2_smp.c5
-rw-r--r--arch/ia64/sn/kernel/sn2/sn_proc_fs.c29
2 files changed, 13 insertions, 21 deletions
diff --git a/arch/ia64/sn/kernel/sn2/sn2_smp.c b/arch/ia64/sn/kernel/sn2/sn2_smp.c
index dfc6bf1c7b41..49d3120415eb 100644
--- a/arch/ia64/sn/kernel/sn2/sn2_smp.c
+++ b/arch/ia64/sn/kernel/sn2/sn2_smp.c
@@ -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;
}
diff --git a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
index 62b3e9a496ac..2526e5c783a4 100644
--- a/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
+++ b/arch/ia64/sn/kernel/sn2/sn_proc_fs.c
@@ -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 */