From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757031AbYDHLZi (ORCPT ); Tue, 8 Apr 2008 07:25:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754242AbYDHLTc (ORCPT ); Tue, 8 Apr 2008 07:19:32 -0400 Received: from mailhub.sw.ru ([195.214.232.25]:47756 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753981AbYDHLT2 (ORCPT ); Tue, 8 Apr 2008 07:19:28 -0400 From: "Denis V. Lunev" To: akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, "Denis V. Lunev" Subject: [PATCH 26/29] kernel: use non-racy method for proc entries creation Date: Tue, 8 Apr 2008 15:19:33 +0400 Message-Id: <1207653576-12640-26-git-send-email-den@openvz.org> X-Mailer: git-send-email 1.5.3.7 In-Reply-To: <1207653508.7171.18.camel@iris.sw.ru> References: <1207653508.7171.18.camel@iris.sw.ru> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- kernel/configs.c | 4 ++-- kernel/dma.c | 7 +------ kernel/kallsyms.c | 6 +----- kernel/latencytop.c | 9 +-------- kernel/lockdep_proc.c | 16 ++++------------ kernel/profile.c | 4 ++-- kernel/resource.c | 10 ++-------- kernel/sched_debug.c | 5 +---- kernel/time/timer_list.c | 5 +---- kernel/time/timer_stats.c | 5 +---- 10 files changed, 16 insertions(+), 55 deletions(-) diff --git a/kernel/configs.c b/kernel/configs.c index d3a4b82..4c34521 100644 --- a/kernel/configs.c +++ b/kernel/configs.c @@ -79,11 +79,11 @@ static int __init ikconfig_init(void) struct proc_dir_entry *entry; /* create the current config file */ - entry = create_proc_entry("config.gz", S_IFREG | S_IRUGO, NULL); + entry = proc_create("config.gz", S_IFREG | S_IRUGO, NULL, + &ikconfig_file_ops); if (!entry) return -ENOMEM; - entry->proc_fops = &ikconfig_file_ops; entry->size = kernel_config_data_size; return 0; diff --git a/kernel/dma.c b/kernel/dma.c index 6a82bb7..d2c60a8 100644 --- a/kernel/dma.c +++ b/kernel/dma.c @@ -149,12 +149,7 @@ static const struct file_operations proc_dma_operations = { static int __init proc_dma_init(void) { - struct proc_dir_entry *e; - - e = create_proc_entry("dma", 0, NULL); - if (e) - e->proc_fops = &proc_dma_operations; - + proc_create("dma", 0, NULL, &proc_dma_operations); return 0; } diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c index f091d13..6fc0040 100644 --- a/kernel/kallsyms.c +++ b/kernel/kallsyms.c @@ -472,11 +472,7 @@ static const struct file_operations kallsyms_operations = { static int __init kallsyms_init(void) { - struct proc_dir_entry *entry; - - entry = create_proc_entry("kallsyms", 0444, NULL); - if (entry) - entry->proc_fops = &kallsyms_operations; + proc_create("kallsyms", 0444, NULL, &kallsyms_operations); return 0; } __initcall(kallsyms_init); diff --git a/kernel/latencytop.c b/kernel/latencytop.c index 7c74dab..5e7b45c 100644 --- a/kernel/latencytop.c +++ b/kernel/latencytop.c @@ -233,14 +233,7 @@ static struct file_operations lstats_fops = { static int __init init_lstats_procfs(void) { - struct proc_dir_entry *pe; - - pe = create_proc_entry("latency_stats", 0644, NULL); - if (!pe) - return -ENOMEM; - - pe->proc_fops = &lstats_fops; - + proc_create("latency_stats", 0644, NULL, &lstats_fops); return 0; } __initcall(init_lstats_procfs); diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c index 8a135bd..dc5d296 100644 --- a/kernel/lockdep_proc.c +++ b/kernel/lockdep_proc.c @@ -660,20 +660,12 @@ static const struct file_operations proc_lock_stat_operations = { static int __init lockdep_proc_init(void) { - struct proc_dir_entry *entry; - - entry = create_proc_entry("lockdep", S_IRUSR, NULL); - if (entry) - entry->proc_fops = &proc_lockdep_operations; - - entry = create_proc_entry("lockdep_stats", S_IRUSR, NULL); - if (entry) - entry->proc_fops = &proc_lockdep_stats_operations; + proc_create("lockdep", S_IRUSR, NULL, &proc_lockdep_operations); + proc_create("lockdep_stats", S_IRUSR, NULL, + &proc_lockdep_stats_operations); #ifdef CONFIG_LOCK_STAT - entry = create_proc_entry("lock_stat", S_IRUSR, NULL); - if (entry) - entry->proc_fops = &proc_lock_stat_operations; + proc_create("lock_stat", S_IRUSR, NULL, &proc_lock_stat_operations); #endif return 0; diff --git a/kernel/profile.c b/kernel/profile.c index 3b7a1b0..1a21762 100644 --- a/kernel/profile.c +++ b/kernel/profile.c @@ -588,10 +588,10 @@ static int __init create_proc_profile(void) return 0; if (create_hash_tables()) return -1; - entry = create_proc_entry("profile", S_IWUSR | S_IRUGO, NULL); + entry = proc_create("profile", S_IWUSR | S_IRUGO, + NULL, &proc_profile_operations); if (!entry) return 0; - entry->proc_fops = &proc_profile_operations; entry->size = (1+prof_len) * sizeof(atomic_t); hotcpu_notifier(profile_cpu_callback, 0); return 0; diff --git a/kernel/resource.c b/kernel/resource.c index 46ad4f4..da8ee1b 100644 --- a/kernel/resource.c +++ b/kernel/resource.c @@ -131,14 +131,8 @@ static const struct file_operations proc_iomem_operations = { static int __init ioresources_init(void) { - struct proc_dir_entry *entry; - - entry = create_proc_entry("ioports", 0, NULL); - if (entry) - entry->proc_fops = &proc_ioports_operations; - entry = create_proc_entry("iomem", 0, NULL); - if (entry) - entry->proc_fops = &proc_iomem_operations; + proc_create("ioports", 0, NULL, &proc_ioports_operations); + proc_create("iomem", 0, NULL, &proc_iomem_operations); return 0; } __initcall(ioresources_init); diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c index 475b5ad..08dddd7 100644 --- a/kernel/sched_debug.c +++ b/kernel/sched_debug.c @@ -248,12 +248,9 @@ static int __init init_sched_debug_procfs(void) { struct proc_dir_entry *pe; - pe = create_proc_entry("sched_debug", 0644, NULL); + pe = proc_create("sched_debug", 0644, NULL, &sched_debug_fops); if (!pe) return -ENOMEM; - - pe->proc_fops = &sched_debug_fops; - return 0; } diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c index 67fe8fc..a40e20f 100644 --- a/kernel/time/timer_list.c +++ b/kernel/time/timer_list.c @@ -278,12 +278,9 @@ static int __init init_timer_list_procfs(void) { struct proc_dir_entry *pe; - pe = create_proc_entry("timer_list", 0644, NULL); + pe = proc_create("timer_list", 0644, NULL, &timer_list_fops); if (!pe) return -ENOMEM; - - pe->proc_fops = &timer_list_fops; - return 0; } __initcall(init_timer_list_procfs); diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c index 417da8c..c994530 100644 --- a/kernel/time/timer_stats.c +++ b/kernel/time/timer_stats.c @@ -415,12 +415,9 @@ static int __init init_tstats_procfs(void) { struct proc_dir_entry *pe; - pe = create_proc_entry("timer_stats", 0644, NULL); + pe = proc_create("timer_stats", 0644, NULL, &tstats_fops); if (!pe) return -ENOMEM; - - pe->proc_fops = &tstats_fops; - return 0; } __initcall(init_tstats_procfs); -- 1.5.3.rc5