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authorDenis V. Lunev <den@openvz.org>2008-04-29 04:02:25 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-29 11:06:21 -0400
commite23637681bef5b69a68c8ac399732b941f1af023 (patch)
tree90cc355ac83b58080da3213b99351717d9f0ffb6 /arch/ia64
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')
-rw-r--r--arch/ia64/hp/common/sba_iommu.c6
-rw-r--r--arch/ia64/kernel/perfmon.c6
-rw-r--r--arch/ia64/kernel/salinfo.c10
-rw-r--r--arch/ia64/sn/kernel/sn2/sn2_smp.c5
-rw-r--r--arch/ia64/sn/kernel/sn2/sn_proc_fs.c29
5 files changed, 20 insertions, 36 deletions
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 6ce729f46de8..34421aed1e2a 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -1932,15 +1932,13 @@ static const struct file_operations ioc_fops = {
1932static void __init 1932static void __init
1933ioc_proc_init(void) 1933ioc_proc_init(void)
1934{ 1934{
1935 struct proc_dir_entry *dir, *entry; 1935 struct proc_dir_entry *dir;
1936 1936
1937 dir = proc_mkdir("bus/mckinley", NULL); 1937 dir = proc_mkdir("bus/mckinley", NULL);
1938 if (!dir) 1938 if (!dir)
1939 return; 1939 return;
1940 1940
1941 entry = create_proc_entry(ioc_list->name, 0, dir); 1941 proc_create(ioc_list->name, 0, dir, &ioc_fops);
1942 if (entry)
1943 entry->proc_fops = &ioc_fops;
1944} 1942}
1945#endif 1943#endif
1946 1944
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index c8e403752a0c..7fbb51e10bbe 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -6695,16 +6695,12 @@ pfm_init(void)
6695 /* 6695 /*
6696 * create /proc/perfmon (mostly for debugging purposes) 6696 * create /proc/perfmon (mostly for debugging purposes)
6697 */ 6697 */
6698 perfmon_dir = create_proc_entry("perfmon", S_IRUGO, NULL); 6698 perfmon_dir = proc_create("perfmon", S_IRUGO, NULL, &pfm_proc_fops);
6699 if (perfmon_dir == NULL) { 6699 if (perfmon_dir == NULL) {
6700 printk(KERN_ERR "perfmon: cannot create /proc entry, perfmon disabled\n"); 6700 printk(KERN_ERR "perfmon: cannot create /proc entry, perfmon disabled\n");
6701 pmu_conf = NULL; 6701 pmu_conf = NULL;
6702 return -1; 6702 return -1;
6703 } 6703 }
6704 /*
6705 * install customized file operations for /proc/perfmon entry
6706 */
6707 perfmon_dir->proc_fops = &pfm_proc_fops;
6708 6704
6709 /* 6705 /*
6710 * create /proc/sys/kernel/perfmon (for debugging purposes) 6706 * create /proc/sys/kernel/perfmon (for debugging purposes)
diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c
index b11bb50a197a..ecb9eb78d687 100644
--- a/arch/ia64/kernel/salinfo.c
+++ b/arch/ia64/kernel/salinfo.c
@@ -648,18 +648,16 @@ salinfo_init(void)
648 if (!dir) 648 if (!dir)
649 continue; 649 continue;
650 650
651 entry = create_proc_entry("event", S_IRUSR, dir); 651 entry = proc_create_data("event", S_IRUSR, dir,
652 &salinfo_event_fops, data);
652 if (!entry) 653 if (!entry)
653 continue; 654 continue;
654 entry->data = data;
655 entry->proc_fops = &salinfo_event_fops;
656 *sdir++ = entry; 655 *sdir++ = entry;
657 656
658 entry = create_proc_entry("data", S_IRUSR | S_IWUSR, dir); 657 entry = proc_create_data("data", S_IRUSR | S_IWUSR, dir,
658 &salinfo_data_fops, data);
659 if (!entry) 659 if (!entry)
660 continue; 660 continue;
661 entry->data = data;
662 entry->proc_fops = &salinfo_data_fops;
663 *sdir++ = entry; 661 *sdir++ = entry;
664 662
665 /* we missed any events before now */ 663 /* we missed any events before now */
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)
550 if (!ia64_platform_is("sn2")) 550 if (!ia64_platform_is("sn2"))
551 return 0; 551 return 0;
552 552
553 if (!(proc_sn2_ptc = create_proc_entry(PTC_BASENAME, 0444, NULL))) { 553 proc_sn2_ptc = proc_create(PTC_BASENAME, 0444,
554 NULL, &proc_sn2_ptc_operations);
555 if (!&proc_sn2_ptc_operations) {
554 printk(KERN_ERR "unable to create %s proc entry", PTC_BASENAME); 556 printk(KERN_ERR "unable to create %s proc entry", PTC_BASENAME);
555 return -EINVAL; 557 return -EINVAL;
556 } 558 }
557 proc_sn2_ptc->proc_fops = &proc_sn2_ptc_operations;
558 spin_lock_init(&sn2_global_ptc_lock); 559 spin_lock_init(&sn2_global_ptc_lock);
559 return 0; 560 return 0;
560} 561}
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 = {
139void register_sn_procfs(void) 139void register_sn_procfs(void)
140{ 140{
141 static struct proc_dir_entry *sgi_proc_dir = NULL; 141 static struct proc_dir_entry *sgi_proc_dir = NULL;
142 struct proc_dir_entry *pde;
143 142
144 BUG_ON(sgi_proc_dir != NULL); 143 BUG_ON(sgi_proc_dir != NULL);
145 if (!(sgi_proc_dir = proc_mkdir("sgi_sn", NULL))) 144 if (!(sgi_proc_dir = proc_mkdir("sgi_sn", NULL)))
146 return; 145 return;
147 146
148 pde = create_proc_entry("partition_id", 0444, sgi_proc_dir); 147 proc_create("partition_id", 0444, sgi_proc_dir,
149 if (pde) 148 &proc_partition_id_fops);
150 pde->proc_fops = &proc_partition_id_fops; 149 proc_create("system_serial_number", 0444, sgi_proc_dir,
151 pde = create_proc_entry("system_serial_number", 0444, sgi_proc_dir); 150 &proc_system_sn_fops);
152 if (pde) 151 proc_create("licenseID", 0444, sgi_proc_dir, &proc_license_id_fops);
153 pde->proc_fops = &proc_system_sn_fops; 152 proc_create("sn_force_interrupt", 0644, sgi_proc_dir,
154 pde = create_proc_entry("licenseID", 0444, sgi_proc_dir); 153 &proc_sn_force_intr_fops);
155 if (pde) 154 proc_create("coherence_id", 0444, sgi_proc_dir,
156 pde->proc_fops = &proc_license_id_fops; 155 &proc_coherence_id_fops);
157 pde = create_proc_entry("sn_force_interrupt", 0644, sgi_proc_dir); 156 proc_create("sn_topology", 0444, sgi_proc_dir, &proc_sn_topo_fops);
158 if (pde)
159 pde->proc_fops = &proc_sn_force_intr_fops;
160 pde = create_proc_entry("coherence_id", 0444, sgi_proc_dir);
161 if (pde)
162 pde->proc_fops = &proc_coherence_id_fops;
163 pde = create_proc_entry("sn_topology", 0444, sgi_proc_dir);
164 if (pde)
165 pde->proc_fops = &proc_sn_topo_fops;
166} 157}
167 158
168#endif /* CONFIG_PROC_FS */ 159#endif /* CONFIG_PROC_FS */