proc: introduce proc_create_seq{,_data}

Variants of proc_create{,_data} that directly take a struct seq_operations
argument and drastically reduces the boilerplate code in the callers.

All trivial callers converted over.

Signed-off-by: Christoph Hellwig <hch@lst.de>

2 files changed, 2 insertions, 41 deletions

diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 15b10e210a6b..e593b4118578 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -823,35 +823,9 @@ static const struct seq_operations sched_debug_sops = {
         .show           = sched_debug_show,
 };
 
-static int sched_debug_release(struct inode *inode, struct file *file)
-{
-        seq_release(inode, file);
-
-        return 0;
-}
-
-static int sched_debug_open(struct inode *inode, struct file *filp)
-{
-        int ret = 0;
-
-        ret = seq_open(filp, &sched_debug_sops);
-
-        return ret;
-}
-
-static const struct file_operations sched_debug_fops = {
-        .open           = sched_debug_open,
-        .read           = seq_read,
-        .llseek         = seq_lseek,
-        .release        = sched_debug_release,
-};
-
 static int __init init_sched_debug_procfs(void)
 {
-        struct proc_dir_entry *pe;
-
-        pe = proc_create("sched_debug", 0444, NULL, &sched_debug_fops);
-        if (!pe)
+        if (!proc_create_seq("sched_debug", 0444, NULL, &sched_debug_sops))
                 return -ENOMEM;
         return 0;
 }
diff --git a/kernel/sched/stats.c b/kernel/sched/stats.c
index ab112cbfd7c8..750fb3c67eed 100644
--- a/kernel/sched/stats.c
+++ b/kernel/sched/stats.c
@@ -120,22 +120,9 @@ static const struct seq_operations schedstat_sops = {
         .show  = show_schedstat,
 };
 
-static int schedstat_open(struct inode *inode, struct file *file)
-{
-        return seq_open(file, &schedstat_sops);
-}
-
-static const struct file_operations proc_schedstat_operations = {
-        .open    = schedstat_open,
-        .read    = seq_read,
-        .llseek  = seq_lseek,
-        .release = seq_release,
-};
-
 static int __init proc_schedstat_init(void)
 {
-        proc_create("schedstat", 0, NULL, &proc_schedstat_operations);
-
+        proc_create_seq("schedstat", 0, NULL, &schedstat_sops);
         return 0;
 }
 subsys_initcall(proc_schedstat_init);