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
  ...

drivers/char/ds1620.c

@@ -6,6 +6,7 @@
 #include <linux/miscdevice.h>
 #include <linux/delay.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/capability.h>
 #include <linux/init.h>
 #include <linux/mutex.h>
@@ -329,9 +330,7 @@ ds1620_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 }
 
 #ifdef THERM_USE_PROC
-static int
-proc_therm_ds1620_read(char *buf, char **start, off_t offset,
-		       int len, int *eof, void *unused)
+static int ds1620_proc_therm_show(struct seq_file *m, void *v)
 {
 	struct therm th;
 	int temp;
@@ -339,17 +338,25 @@ proc_therm_ds1620_read(char *buf, char **start, off_t offset,
 	ds1620_read_state(&th);
 	temp =  cvt_9_to_int(ds1620_in(THERM_READ_TEMP, 9));
 
-	len = sprintf(buf, "Thermostat: HI %i.%i, LOW %i.%i; "
-		      "temperature: %i.%i C, fan %s\n",
-		      th.hi >> 1, th.hi & 1 ? 5 : 0,
-		      th.lo >> 1, th.lo & 1 ? 5 : 0,
-		      temp  >> 1, temp  & 1 ? 5 : 0,
-		      fan_state[netwinder_get_fan()]);
-
-	return len;
+	seq_printf(m, "Thermostat: HI %i.%i, LOW %i.%i; temperature: %i.%i C, fan %s\n",
+		   th.hi >> 1, th.hi & 1 ? 5 : 0,
+		   th.lo >> 1, th.lo & 1 ? 5 : 0,
+		   temp  >> 1, temp  & 1 ? 5 : 0,
+		   fan_state[netwinder_get_fan()]);
+	return 0;
 }
 
-static struct proc_dir_entry *proc_therm_ds1620;
+static int ds1620_proc_therm_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, ds1620_proc_therm_show, NULL);
+}
+
+static const struct file_operations ds1620_proc_therm_fops = {
+	.open		= ds1620_proc_therm_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
 #endif
 
 static const struct file_operations ds1620_fops = {
@@ -397,10 +404,7 @@ static int __init ds1620_init(void)
 		return ret;
 
 #ifdef THERM_USE_PROC
-	proc_therm_ds1620 = create_proc_entry("therm", 0, NULL);
-	if (proc_therm_ds1620)
-		proc_therm_ds1620->read_proc = proc_therm_ds1620_read;
-	else
+	if (!proc_create("therm", 0, NULL, &ds1620_proc_therm_fops))
 		printk(KERN_ERR "therm: unable to register /proc/therm\n");
 #endif
 

drivers/char/efirtc.c

@@ -34,6 +34,7 @@
 #include <linux/init.h>
 #include <linux/rtc.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/efi.h>
 #include <linux/uaccess.h>
 
@@ -296,12 +297,10 @@ static struct miscdevice efi_rtc_dev= {
 /*
  *	We export RAW EFI information to /proc/driver/efirtc
  */
-static int
-efi_rtc_get_status(char *buf)
+static int efi_rtc_proc_show(struct seq_file *m, void *v)
 {
 	efi_time_t 	eft, alm;
 	efi_time_cap_t	cap;
-	char		*p = buf;
 	efi_bool_t	enabled, pending;	
 	unsigned long	flags;
 
@@ -316,64 +315,63 @@ efi_rtc_get_status(char *buf)
 
 	spin_unlock_irqrestore(&efi_rtc_lock,flags);
 
-	p += sprintf(p,
-		     "Time           : %u:%u:%u.%09u\n"
-		     "Date           : %u-%u-%u\n"
-		     "Daylight       : %u\n",
-		     eft.hour, eft.minute, eft.second, eft.nanosecond, 
-		     eft.year, eft.month, eft.day,
-		     eft.daylight);
+	seq_printf(m,
+		   "Time           : %u:%u:%u.%09u\n"
+		   "Date           : %u-%u-%u\n"
+		   "Daylight       : %u\n",
+		   eft.hour, eft.minute, eft.second, eft.nanosecond, 
+		   eft.year, eft.month, eft.day,
+		   eft.daylight);
 
 	if (eft.timezone == EFI_UNSPECIFIED_TIMEZONE)
-		p += sprintf(p, "Timezone       : unspecified\n");
+		seq_puts(m, "Timezone       : unspecified\n");
 	else
 		/* XXX fixme: convert to string? */
-		p += sprintf(p, "Timezone       : %u\n", eft.timezone);
+		seq_printf(m, "Timezone       : %u\n", eft.timezone);
 		
 
-	p += sprintf(p,
-		     "Alarm Time     : %u:%u:%u.%09u\n"
-		     "Alarm Date     : %u-%u-%u\n"
-		     "Alarm Daylight : %u\n"
-		     "Enabled        : %s\n"
-		     "Pending        : %s\n",
-		     alm.hour, alm.minute, alm.second, alm.nanosecond, 
-		     alm.year, alm.month, alm.day, 
-		     alm.daylight,
-		     enabled == 1 ? "yes" : "no",
-		     pending == 1 ? "yes" : "no");
+	seq_printf(m,
+		   "Alarm Time     : %u:%u:%u.%09u\n"
+		   "Alarm Date     : %u-%u-%u\n"
+		   "Alarm Daylight : %u\n"
+		   "Enabled        : %s\n"
+		   "Pending        : %s\n",
+		   alm.hour, alm.minute, alm.second, alm.nanosecond, 
+		   alm.year, alm.month, alm.day, 
+		   alm.daylight,
+		   enabled == 1 ? "yes" : "no",
+		   pending == 1 ? "yes" : "no");
 
 	if (eft.timezone == EFI_UNSPECIFIED_TIMEZONE)
-		p += sprintf(p, "Timezone       : unspecified\n");
+		seq_puts(m, "Timezone       : unspecified\n");
 	else
 		/* XXX fixme: convert to string? */
-		p += sprintf(p, "Timezone       : %u\n", alm.timezone);
+		seq_printf(m, "Timezone       : %u\n", alm.timezone);
 
 	/*
 	 * now prints the capabilities
 	 */
-	p += sprintf(p,
-		     "Resolution     : %u\n"
-		     "Accuracy       : %u\n"
-		     "SetstoZero     : %u\n",
-		      cap.resolution, cap.accuracy, cap.sets_to_zero);
+	seq_printf(m,
+		   "Resolution     : %u\n"
+		   "Accuracy       : %u\n"
+		   "SetstoZero     : %u\n",
+		   cap.resolution, cap.accuracy, cap.sets_to_zero);
 
-	return  p - buf;
+	return 0;
 }
 
-static int
-efi_rtc_read_proc(char *page, char **start, off_t off,
-                                 int count, int *eof, void *data)
+static int efi_rtc_proc_open(struct inode *inode, struct file *file)
 {
-        int len = efi_rtc_get_status(page);
-        if (len <= off+count) *eof = 1;
-        *start = page + off;
-        len -= off;
-        if (len>count) len = count;
-        if (len<0) len = 0;
-        return len;
+	return single_open(file, efi_rtc_proc_show, NULL);
 }
 
+static const struct file_operations efi_rtc_proc_fops = {
+	.open		= efi_rtc_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
 static int __init 
 efi_rtc_init(void)
 {
@@ -389,8 +387,7 @@ efi_rtc_init(void)
 		return ret;
 	}
 
-	dir = create_proc_read_entry ("driver/efirtc", 0, NULL,
-			              efi_rtc_read_proc, NULL);
+	dir = proc_create("driver/efirtc", 0, NULL, &efi_rtc_proc_fops);
 	if (dir == NULL) {
 		printk(KERN_ERR "efirtc: can't create /proc/driver/efirtc.\n");
 		misc_deregister(&efi_rtc_dev);

drivers/char/genrtc.c

@@ -52,6 +52,7 @@
 #include <linux/init.h>
 #include <linux/poll.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/mutex.h>
 #include <linux/workqueue.h>
 
@@ -386,18 +387,15 @@ static int gen_rtc_release(struct inode *inode, struct file *file)
  *	Info exported via "/proc/driver/rtc".
  */
 
-static int gen_rtc_proc_output(char *buf)
+static int gen_rtc_proc_show(struct seq_file *m, void *v)
 {
-	char *p;
 	struct rtc_time tm;
 	unsigned int flags;
 	struct rtc_pll_info pll;
 
-	p = buf;
-
 	flags = get_rtc_time(&tm);
 
-	p += sprintf(p,
+	seq_printf(m,
 		     "rtc_time\t: %02d:%02d:%02d\n"
 		     "rtc_date\t: %04d-%02d-%02d\n"
 		     "rtc_epoch\t: %04u\n",
@@ -406,23 +404,23 @@ static int gen_rtc_proc_output(char *buf)
 
 	tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
 
-	p += sprintf(p, "alarm\t\t: ");
+	seq_puts(m, "alarm\t\t: ");
 	if (tm.tm_hour <= 24)
-		p += sprintf(p, "%02d:", tm.tm_hour);
+		seq_printf(m, "%02d:", tm.tm_hour);
 	else
-		p += sprintf(p, "**:");
+		seq_puts(m, "**:");
 
 	if (tm.tm_min <= 59)
-		p += sprintf(p, "%02d:", tm.tm_min);
+		seq_printf(m, "%02d:", tm.tm_min);
 	else
-		p += sprintf(p, "**:");
+		seq_puts(m, "**:");
 
 	if (tm.tm_sec <= 59)
-		p += sprintf(p, "%02d\n", tm.tm_sec);
+		seq_printf(m, "%02d\n", tm.tm_sec);
 	else
-		p += sprintf(p, "**\n");
+		seq_puts(m, "**\n");
 
-	p += sprintf(p,
+	seq_printf(m,
 		     "DST_enable\t: %s\n"
 		     "BCD\t\t: %s\n"
 		     "24hr\t\t: %s\n"
@@ -442,7 +440,7 @@ static int gen_rtc_proc_output(char *buf)
 		     0L /* freq */,
 		     (flags & RTC_BATT_BAD) ? "bad" : "okay");
 	if (!get_rtc_pll(&pll))
-	    p += sprintf(p,
+	    seq_printf(m,
 			 "PLL adjustment\t: %d\n"
 			 "PLL max +ve adjustment\t: %d\n"
 			 "PLL max -ve adjustment\t: %d\n"
@@ -455,26 +453,26 @@ static int gen_rtc_proc_output(char *buf)
 			 pll.pll_posmult,
 			 pll.pll_negmult,
 			 pll.pll_clock);
-	return p - buf;
+	return 0;
 }
 
-static int gen_rtc_read_proc(char *page, char **start, off_t off,
-			     int count, int *eof, void *data)
+static int gen_rtc_proc_open(struct inode *inode, struct file *file)
 {
-	int len = gen_rtc_proc_output (page);
-        if (len <= off+count) *eof = 1;
-	*start = page + off;
-	len -= off;
-        if (len>count) len = count;
-        if (len<0) len = 0;
-	return len;
+	return single_open(file, gen_rtc_proc_show, NULL);
 }
 
+static const struct file_operations gen_rtc_proc_fops = {
+	.open		= gen_rtc_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
 static int __init gen_rtc_proc_init(void)
 {
 	struct proc_dir_entry *r;
 
-	r = create_proc_read_entry("driver/rtc", 0, NULL, gen_rtc_read_proc, NULL);
+	r = proc_create("driver/rtc", 0, NULL, &gen_rtc_proc_fops);
 	if (!r)
 		return -ENOMEM;
 	return 0;

drivers/char/ipmi/ipmi_msghandler.c

@@ -1917,7 +1917,7 @@ static int smi_ipmb_proc_show(struct seq_file *m, void *v)
 
 static int smi_ipmb_proc_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, smi_ipmb_proc_show, PDE(inode)->data);
+	return single_open(file, smi_ipmb_proc_show, PDE_DATA(inode));
 }
 
 static const struct file_operations smi_ipmb_proc_ops = {
@@ -1938,7 +1938,7 @@ static int smi_version_proc_show(struct seq_file *m, void *v)
 
 static int smi_version_proc_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, smi_version_proc_show, PDE(inode)->data);
+	return single_open(file, smi_version_proc_show, PDE_DATA(inode));
 }
 
 static const struct file_operations smi_version_proc_ops = {
@@ -2013,7 +2013,7 @@ static int smi_stats_proc_show(struct seq_file *m, void *v)
 
 static int smi_stats_proc_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, smi_stats_proc_show, PDE(inode)->data);
+	return single_open(file, smi_stats_proc_show, PDE_DATA(inode));
 }
 
 static const struct file_operations smi_stats_proc_ops = {
@@ -4541,7 +4541,7 @@ static void __exit cleanup_ipmi(void)
 	del_timer_sync(&ipmi_timer);
 
 #ifdef CONFIG_PROC_FS
-	remove_proc_entry(proc_ipmi_root->name, NULL);
+	proc_remove(proc_ipmi_root);
 #endif /* CONFIG_PROC_FS */
 
 	driver_unregister(&ipmidriver.driver);

drivers/char/ipmi/ipmi_si_intf.c

@@ -2839,7 +2839,7 @@ static int smi_type_proc_show(struct seq_file *m, void *v)
 
 static int smi_type_proc_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, smi_type_proc_show, PDE(inode)->data);
+	return single_open(file, smi_type_proc_show, PDE_DATA(inode));
 }
 
 static const struct file_operations smi_type_proc_ops = {
@@ -2882,7 +2882,7 @@ static int smi_si_stats_proc_show(struct seq_file *m, void *v)
 
 static int smi_si_stats_proc_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, smi_si_stats_proc_show, PDE(inode)->data);
+	return single_open(file, smi_si_stats_proc_show, PDE_DATA(inode));
 }
 
 static const struct file_operations smi_si_stats_proc_ops = {
@@ -2910,7 +2910,7 @@ static int smi_params_proc_show(struct seq_file *m, void *v)
 
 static int smi_params_proc_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, smi_params_proc_show, PDE(inode)->data);
+	return single_open(file, smi_params_proc_show, PDE_DATA(inode));
 }
 
 static const struct file_operations smi_params_proc_ops = {