proc: convert everything to "struct proc_ops"

The most notable change is DEFINE_SHOW_ATTRIBUTE macro split in
seq_file.h.

Conversion rule is:

	llseek		=> proc_lseek
	unlocked_ioctl	=> proc_ioctl

	xxx		=> proc_xxx

	delete ".owner = THIS_MODULE" line

[akpm@linux-foundation.org: fix drivers/isdn/capi/kcapi_proc.c]
[sfr@canb.auug.org.au: fix kernel/sched/psi.c]
  Link: http://lkml.kernel.org/r/20200122180545.36222f50@canb.auug.org.au
Link: http://lkml.kernel.org/r/20191225172546.GB13378@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/alpha/kernel/srm_env.c

@@ -119,13 +119,12 @@ static ssize_t srm_env_proc_write(struct file *file, const char __user *buffer,
 	return res;
 }
 
-static const struct file_operations srm_env_proc_fops = {
-	.owner		= THIS_MODULE,
-	.open		= srm_env_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-	.write		= srm_env_proc_write,
+static const struct proc_ops srm_env_proc_ops = {
+	.proc_open	= srm_env_proc_open,
+	.proc_read	= seq_read,
+	.proc_lseek	= seq_lseek,
+	.proc_release	= single_release,
+	.proc_write	= srm_env_proc_write,
 };
 
 static int __init
@@ -182,7 +181,7 @@ srm_env_init(void)
 	entry = srm_named_entries;
 	while (entry->name && entry->id) {
 		if (!proc_create_data(entry->name, 0644, named_dir,
-			     &srm_env_proc_fops, (void *)entry->id))
+			     &srm_env_proc_ops, (void *)entry->id))
 			goto cleanup;
 		entry++;
 	}
@@ -194,7 +193,7 @@ srm_env_init(void)
 		char name[4];
 		sprintf(name, "%ld", var_num);
 		if (!proc_create_data(name, 0644, numbered_dir,
-			     &srm_env_proc_fops, (void *)var_num))
+			     &srm_env_proc_ops, (void *)var_num))
 			goto cleanup;
 	}
 

arch/arm/kernel/atags_proc.c

@@ -17,9 +17,9 @@ static ssize_t atags_read(struct file *file, char __user *buf,
 	return simple_read_from_buffer(buf, count, ppos, b->data, b->size);
 }
 
-static const struct file_operations atags_fops = {
-	.read = atags_read,
-	.llseek = default_llseek,
+static const struct proc_ops atags_proc_ops = {
+	.proc_read	= atags_read,
+	.proc_lseek	= default_llseek,
 };
 
 #define BOOT_PARAMS_SIZE 1536
@@ -61,7 +61,7 @@ static int __init init_atags_procfs(void)
 	b->size = size;
 	memcpy(b->data, atags_copy, size);
 
-	tags_entry = proc_create_data("atags", 0400, NULL, &atags_fops, b);
+	tags_entry = proc_create_data("atags", 0400, NULL, &atags_proc_ops, b);
 	if (!tags_entry)
 		goto nomem;
 

arch/arm/mm/alignment.c

@@ -162,12 +162,12 @@ static ssize_t alignment_proc_write(struct file *file, const char __user *buffer
 	return count;
 }
 
-static const struct file_operations alignment_proc_fops = {
-	.open		= alignment_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-	.write		= alignment_proc_write,
+static const struct proc_ops alignment_proc_ops = {
+	.proc_open	= alignment_proc_open,
+	.proc_read	= seq_read,
+	.proc_lseek	= seq_lseek,
+	.proc_release	= single_release,
+	.proc_write	= alignment_proc_write,
 };
 #endif /* CONFIG_PROC_FS */
 
@@ -1016,7 +1016,7 @@ static int __init alignment_init(void)
 	struct proc_dir_entry *res;
 
 	res = proc_create("cpu/alignment", S_IWUSR | S_IRUGO, NULL,
-			  &alignment_proc_fops);
+			  &alignment_proc_ops);
 	if (!res)
 		return -ENOMEM;
 #endif

arch/ia64/kernel/salinfo.c

@@ -331,10 +331,10 @@ salinfo_event_read(struct file *file, char __user *buffer, size_t count, loff_t
 	return size;
 }
 
-static const struct file_operations salinfo_event_fops = {
-	.open  = salinfo_event_open,
-	.read  = salinfo_event_read,
-	.llseek = noop_llseek,
+static const struct proc_ops salinfo_event_proc_ops = {
+	.proc_open	= salinfo_event_open,
+	.proc_read	= salinfo_event_read,
+	.proc_lseek	= noop_llseek,
 };
 
 static int
@@ -534,12 +534,12 @@ salinfo_log_write(struct file *file, const char __user *buffer, size_t count, lo
 	return count;
 }
 
-static const struct file_operations salinfo_data_fops = {
-	.open    = salinfo_log_open,
-	.release = salinfo_log_release,
-	.read    = salinfo_log_read,
-	.write   = salinfo_log_write,
-	.llseek  = default_llseek,
+static const struct proc_ops salinfo_data_proc_ops = {
+	.proc_open	= salinfo_log_open,
+	.proc_release	= salinfo_log_release,
+	.proc_read	= salinfo_log_read,
+	.proc_write	= salinfo_log_write,
+	.proc_lseek	= default_llseek,
 };
 
 static int salinfo_cpu_online(unsigned int cpu)
@@ -617,13 +617,13 @@ salinfo_init(void)
 			continue;
 
 		entry = proc_create_data("event", S_IRUSR, dir,
-					 &salinfo_event_fops, data);
+					 &salinfo_event_proc_ops, data);
 		if (!entry)
 			continue;
 		*sdir++ = entry;
 
 		entry = proc_create_data("data", S_IRUSR | S_IWUSR, dir,
-					 &salinfo_data_fops, data);
+					 &salinfo_data_proc_ops, data);
 		if (!entry)
 			continue;
 		*sdir++ = entry;

arch/m68k/kernel/bootinfo_proc.c

@@ -26,9 +26,9 @@ static ssize_t bootinfo_read(struct file *file, char __user *buf,
 				       bootinfo_size);
 }
 
-static const struct file_operations bootinfo_fops = {
-	.read = bootinfo_read,
-	.llseek = default_llseek,
+static const struct proc_ops bootinfo_proc_ops = {
+	.proc_read	= bootinfo_read,
+	.proc_lseek	= default_llseek,
 };
 
 void __init save_bootinfo(const struct bi_record *bi)
@@ -67,7 +67,7 @@ static int __init init_bootinfo_procfs(void)
 	if (!bootinfo_copy)
 		return -ENOMEM;
 
-	pde = proc_create_data("bootinfo", 0400, NULL, &bootinfo_fops, NULL);
+	pde = proc_create_data("bootinfo", 0400, NULL, &bootinfo_proc_ops, NULL);
 	if (!pde) {
 		kfree(bootinfo_copy);
 		return -ENOMEM;

arch/mips/lasat/picvue_proc.c

@@ -89,13 +89,12 @@ static ssize_t pvc_line_proc_write(struct file *file, const char __user *buf,
 	return count;
 }
 
-static const struct file_operations pvc_line_proc_fops = {
-	.owner		= THIS_MODULE,
-	.open		= pvc_line_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-	.write		= pvc_line_proc_write,
+static const struct proc_ops pvc_line_proc_ops = {
+	.proc_open	= pvc_line_proc_open,
+	.proc_read	= seq_read,
+	.proc_lseek	= seq_lseek,
+	.proc_release	= single_release,
+	.proc_write	= pvc_line_proc_write,
 };
 
 static ssize_t pvc_scroll_proc_write(struct file *file, const char __user *buf,
@@ -148,13 +147,12 @@ static int pvc_scroll_proc_open(struct inode *inode, struct file *file)
 	return single_open(file, pvc_scroll_proc_show, NULL);
 }
 
-static const struct file_operations pvc_scroll_proc_fops = {
-	.owner		= THIS_MODULE,
-	.open		= pvc_scroll_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-	.write		= pvc_scroll_proc_write,
+static const struct proc_ops pvc_scroll_proc_ops = {
+	.proc_open	= pvc_scroll_proc_open,
+	.proc_read	= seq_read,
+	.proc_lseek	= seq_lseek,
+	.proc_release	= single_release,
+	.proc_write	= pvc_scroll_proc_write,
 };
 
 void pvc_proc_timerfunc(struct timer_list *unused)
@@ -189,12 +187,11 @@ static int __init pvc_proc_init(void)
 	}
 	for (i = 0; i < PVC_NLINES; i++) {
 		proc_entry = proc_create_data(pvc_linename[i], 0644, dir,
-					&pvc_line_proc_fops, &pvc_linedata[i]);
+					&pvc_line_proc_ops, &pvc_linedata[i]);
 		if (proc_entry == NULL)
 			goto error;
 	}
-	proc_entry = proc_create("scroll", 0644, dir,
-				 &pvc_scroll_proc_fops);
+	proc_entry = proc_create("scroll", 0644, dir, &pvc_scroll_proc_ops);
 	if (proc_entry == NULL)
 		goto error;
 

arch/powerpc/kernel/proc_powerpc.c

@@ -39,10 +39,10 @@ static int page_map_mmap( struct file *file, struct vm_area_struct *vma )
 	return 0;
 }
 
-static const struct file_operations page_map_fops = {
-	.llseek	= page_map_seek,
-	.read	= page_map_read,
-	.mmap	= page_map_mmap
+static const struct proc_ops page_map_proc_ops = {
+	.proc_lseek	= page_map_seek,
+	.proc_read	= page_map_read,
+	.proc_mmap	= page_map_mmap,
 };
 
 
@@ -51,7 +51,7 @@ static int __init proc_ppc64_init(void)
 	struct proc_dir_entry *pde;
 
 	pde = proc_create_data("powerpc/systemcfg", S_IFREG | 0444, NULL,
-			       &page_map_fops, vdso_data);
+			       &page_map_proc_ops, vdso_data);
 	if (!pde)
 		return 1;
 	proc_set_size(pde, PAGE_SIZE);

arch/powerpc/kernel/rtas-proc.c

@@ -159,64 +159,64 @@ static int poweron_open(struct inode *inode, struct file *file)
 	return single_open(file, ppc_rtas_poweron_show, NULL);
 }
 
-static const struct file_operations ppc_rtas_poweron_operations = {
-	.open		= poweron_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.write		= ppc_rtas_poweron_write,
-	.release	= single_release,
+static const struct proc_ops ppc_rtas_poweron_proc_ops = {
+	.proc_open	= poweron_open,
+	.proc_read	= seq_read,
+	.proc_lseek	= seq_lseek,
+	.proc_write	= ppc_rtas_poweron_write,
+	.proc_release	= single_release,
 };
 
 static int progress_open(struct inode *inode, struct file *file)
 {
 	return single_open(file, ppc_rtas_progress_show, NULL);
 }
 
-static const struct file_operations ppc_rtas_progress_operations = {
-	.open		= progress_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.write		= ppc_rtas_progress_write,
-	.release	= single_release,
+static const struct proc_ops ppc_rtas_progress_proc_ops = {
+	.proc_open	= progress_open,
+	.proc_read	= seq_read,
+	.proc_lseek	= seq_lseek,
+	.proc_write	= ppc_rtas_progress_write,
+	.proc_release	= single_release,
 };
 
 static int clock_open(struct inode *inode, struct file *file)
 {
 	return single_open(file, ppc_rtas_clock_show, NULL);
 }
 
-static const struct file_operations ppc_rtas_clock_operations = {
-	.open		= clock_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.write		= ppc_rtas_clock_write,
-	.release	= single_release,
+static const struct proc_ops ppc_rtas_clock_proc_ops = {
+	.proc_open	= clock_open,
+	.proc_read	= seq_read,
+	.proc_lseek	= seq_lseek,
+	.proc_write	= ppc_rtas_clock_write,
+	.proc_release	= single_release,
 };
 
 static int tone_freq_open(struct inode *inode, struct file *file)
 {
 	return single_open(file, ppc_rtas_tone_freq_show, NULL);
 }
 
-static const struct file_operations ppc_rtas_tone_freq_operations = {
-	.open		= tone_freq_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.write		= ppc_rtas_tone_freq_write,
-	.release	= single_release,
+static const struct proc_ops ppc_rtas_tone_freq_proc_ops = {
+	.proc_open	= tone_freq_open,
+	.proc_read	= seq_read,
+	.proc_lseek	= seq_lseek,
+	.proc_write	= ppc_rtas_tone_freq_write,
+	.proc_release	= single_release,
 };
 
 static int tone_volume_open(struct inode *inode, struct file *file)
 {
 	return single_open(file, ppc_rtas_tone_volume_show, NULL);
 }
 
-static const struct file_operations ppc_rtas_tone_volume_operations = {
-	.open		= tone_volume_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.write		= ppc_rtas_tone_volume_write,
-	.release	= single_release,
+static const struct proc_ops ppc_rtas_tone_volume_proc_ops = {
+	.proc_open	= tone_volume_open,
+	.proc_read	= seq_read,
+	.proc_lseek	= seq_lseek,
+	.proc_write	= ppc_rtas_tone_volume_write,
+	.proc_release	= single_release,
 };
 
 static int ppc_rtas_find_all_sensors(void);
@@ -238,17 +238,17 @@ static int __init proc_rtas_init(void)
 		return -ENODEV;
 
 	proc_create("powerpc/rtas/progress", 0644, NULL,
-		    &ppc_rtas_progress_operations);
+		    &ppc_rtas_progress_proc_ops);
 	proc_create("powerpc/rtas/clock", 0644, NULL,
-		    &ppc_rtas_clock_operations);
+		    &ppc_rtas_clock_proc_ops);
 	proc_create("powerpc/rtas/poweron", 0644, NULL,
-		    &ppc_rtas_poweron_operations);
+		    &ppc_rtas_poweron_proc_ops);
 	proc_create_single("powerpc/rtas/sensors", 0444, NULL,
 			ppc_rtas_sensors_show);
 	proc_create("powerpc/rtas/frequency", 0644, NULL,
-		    &ppc_rtas_tone_freq_operations);
+		    &ppc_rtas_tone_freq_proc_ops);
 	proc_create("powerpc/rtas/volume", 0644, NULL,
-		    &ppc_rtas_tone_volume_operations);
+		    &ppc_rtas_tone_volume_proc_ops);
 	proc_create_single("powerpc/rtas/rmo_buffer", 0400, NULL,
 			ppc_rtas_rmo_buf_show);
 	return 0;