Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull VFS updates from Al Viro,

Misc cleanups all over the place, mainly wrt /proc interfaces (switch
create_proc_entry to proc_create(), get rid of the deprecated
create_proc_read_entry() in favor of using proc_create_data() and
seq_file etc).

7kloc removed.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits)
  don't bother with deferred freeing of fdtables
  proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
  proc: Make the PROC_I() and PDE() macros internal to procfs
  proc: Supply a function to remove a proc entry by PDE
  take cgroup_open() and cpuset_open() to fs/proc/base.c
  ppc: Clean up scanlog
  ppc: Clean up rtas_flash driver somewhat
  hostap: proc: Use remove_proc_subtree()
  drm: proc: Use remove_proc_subtree()
  drm: proc: Use minor->index to label things, not PDE->name
  drm: Constify drm_proc_list[]
  zoran: Don't print proc_dir_entry data in debug
  reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()
  proc: Supply an accessor for getting the data from a PDE's parent
  airo: Use remove_proc_subtree()
  rtl8192u: Don't need to save device proc dir PDE
  rtl8187se: Use a dir under /proc/net/r8180/
  proc: Add proc_mkdir_data()
  proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h}
  proc: Move PDE_NET() to fs/proc/proc_net.c
  ...

arch/parisc/kernel/pdc_chassis.c

@@ -30,11 +30,13 @@
 #endif
 
 #include <linux/init.h>
+#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/reboot.h>
 #include <linux/notifier.h>
 #include <linux/cache.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 
 #include <asm/pdc_chassis.h>
 #include <asm/processor.h>
@@ -244,38 +246,38 @@ int pdc_chassis_send_status(int message)
 
 #ifdef CONFIG_PDC_CHASSIS_WARN
 #ifdef CONFIG_PROC_FS
-static int pdc_chassis_warn_pread(char *page, char **start, off_t off,
-		int count, int *eof, void *data)
+static int pdc_chassis_warn_show(struct seq_file *m, void *v)
 {
-	char *out = page;
-	int len, ret;
 	unsigned long warn;
 	u32 warnreg;
 
-	ret = pdc_chassis_warn(&warn);
-	if (ret != PDC_OK)
+	if (pdc_chassis_warn(&warn) != PDC_OK)
 		return -EIO;
 
 	warnreg = (warn & 0xFFFFFFFF);
 
 	if ((warnreg >> 24) & 0xFF)
-		out += sprintf(out, "Chassis component failure! (eg fan or PSU): 0x%.2x\n", ((warnreg >> 24) & 0xFF));
+		seq_printf(m, "Chassis component failure! (eg fan or PSU): 0x%.2x\n",
+			   (warnreg >> 24) & 0xFF);
 
-	out += sprintf(out, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK");
-	out += sprintf(out, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK");
-	out += sprintf(out, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK");
-
-	len = out - page - off;
-	if (len < count) {
-		*eof = 1;
-		if (len <= 0) return 0;
-	} else {
-		len = count;
-	}
-	*start = page + off;
-	return len;
+	seq_printf(m, "Battery: %s\n", (warnreg & 0x04) ? "Low!" : "OK");
+	seq_printf(m, "Temp low: %s\n", (warnreg & 0x02) ? "Exceeded!" : "OK");
+	seq_printf(m, "Temp mid: %s\n", (warnreg & 0x01) ? "Exceeded!" : "OK");
+	return 0;
 }
 
+static int pdc_chassis_warn_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pdc_chassis_warn_show, NULL);
+}
+
+static const struct file_operations pdc_chassis_warn_fops = {
+	.open		= pdc_chassis_warn_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
 static int __init pdc_chassis_create_procfs(void)
 {
 	unsigned long test;
@@ -290,8 +292,7 @@ static int __init pdc_chassis_create_procfs(void)
 
 	printk(KERN_INFO "Enabling PDC chassis warnings support v%s\n",
 			PDC_CHASSIS_VER);
-	create_proc_read_entry("chassis", 0400, NULL, pdc_chassis_warn_pread,
-				NULL);
+	proc_create("chassis", 0400, NULL, &pdc_chassis_warn_fops);
 	return 0;
 }