v2.4.12 -> v2.4.12.1

  - Trond Myklebust: deadlock checking in lockd server
  - Tim Waugh: fix up parport wrong #define
  - Christoph Hellwig: i2c update, ext2 cleanup
  - Al Viro: fix partition handling sanity check.
  - Trond Myklebust: make NFS use SLAB_NOFS, and not play games with PF_MEMALLOC
  - Ben Fennema: UDF update
  - Alan Cox: continued merging
  - Chris Mason: get /proc buffer memory sizes right after buf-in-page-cache

1 files changed, 396 insertions, 0 deletions

diff --git a/include/linux/i2c-proc.h b/include/linux/i2c-proc.h
new file mode 100644
index 000000000000..364cfe77d4d6
--- /dev/null
+++ b/include/linux/i2c-proc.h
@@ -0,0 +1,396 @@
+/*
+    sensors.h - Part of lm_sensors, Linux kernel modules for hardware
+                monitoring
+    Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef SENSORS_SENSORS_H
+#define SENSORS_SENSORS_H
+
+#ifdef __KERNEL__
+
+/* Next two must be included before sysctl.h can be included, in 2.0 kernels */
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/sysctl.h>
+
+/* The type of callback functions used in sensors_{proc,sysctl}_real */
+typedef void (*i2c_real_callback) (struct i2c_client * client,
+				       int operation, int ctl_name,
+				       int *nrels_mag, long *results);
+
+/* Values for the operation field in the above function type */
+#define SENSORS_PROC_REAL_INFO 1
+#define SENSORS_PROC_REAL_READ 2
+#define SENSORS_PROC_REAL_WRITE 3
+
+/* These funcion reads or writes a 'real' value (encoded by the combination
+   of an integer and a magnitude, the last is the power of ten the value
+   should be divided with) to a /proc/sys directory. To use these functions,
+   you must (before registering the ctl_table) set the extra2 field to the
+   client, and the extra1 field to a function of the form:
+      void func(struct i2c_client *client, int operation, int ctl_name,
+                int *nrels_mag, long *results)
+   This last function can be called for three values of operation. If
+   operation equals SENSORS_PROC_REAL_INFO, the magnitude should be returned
+   in nrels_mag. If operation equals SENSORS_PROC_REAL_READ, values should
+   be read into results. nrels_mag should return the number of elements
+   read; the maximum number is put in it on entry. Finally, if operation
+   equals SENSORS_PROC_REAL_WRITE, the values in results should be
+   written to the chip. nrels_mag contains on entry the number of elements
+   found.
+   In all cases, client points to the client we wish to interact with,
+   and ctl_name is the SYSCTL id of the file we are accessing. */
+extern int i2c_sysctl_real(ctl_table * table, int *name, int nlen,
+			       void *oldval, size_t * oldlenp,
+			       void *newval, size_t newlen,
+			       void **context);
+extern int i2c_proc_real(ctl_table * ctl, int write, struct file *filp,
+			     void *buffer, size_t * lenp);
+
+
+
+/* These rather complex functions must be called when you want to add or
+   delete an entry in /proc/sys/dev/sensors/chips (not yet implemented). It
+   also creates a new directory within /proc/sys/dev/sensors/.
+   ctl_template should be a template of the newly created directory. It is
+   copied in memory. The extra2 field of each file is set to point to client.
+   If any driver wants subdirectories within the newly created directory,
+   these functions must be updated! */
+extern int i2c_register_entry(struct i2c_client *client,
+				  const char *prefix,
+				  ctl_table * ctl_template,
+				  struct module *controlling_mod);
+
+extern void i2c_deregister_entry(int id);
+
+
+/* A structure containing detect information.
+   Force variables overrule all other variables; they force a detection on
+   that place. If a specific chip is given, the module blindly assumes this
+   chip type is present; if a general force (kind == 0) is given, the module
+   will still try to figure out what type of chip is present. This is useful
+   if for some reasons the detect for SMBus or ISA address space filled
+   fails.
+   probe: insmod parameter. Initialize this list with SENSORS_I2C_END values.
+     A list of pairs. The first value is a bus number (SENSORS_ISA_BUS for
+     the ISA bus, -1 for any I2C bus), the second is the address. 
+   kind: The kind of chip. 0 equals any chip.
+*/
+struct i2c_force_data {
+	unsigned short *force;
+	unsigned short kind;
+};
+
+/* A structure containing the detect information.
+   normal_i2c: filled in by the module writer. Terminated by SENSORS_I2C_END.
+     A list of I2C addresses which should normally be examined.
+   normal_i2c_range: filled in by the module writer. Terminated by 
+     SENSORS_I2C_END
+     A list of pairs of I2C addresses, each pair being an inclusive range of
+     addresses which should normally be examined.
+   normal_isa: filled in by the module writer. Terminated by SENSORS_ISA_END.
+     A list of ISA addresses which should normally be examined.
+   normal_isa_range: filled in by the module writer. Terminated by 
+     SENSORS_ISA_END
+     A list of triples. The first two elements are ISA addresses, being an
+     range of addresses which should normally be examined. The third is the
+     modulo parameter: only addresses which are 0 module this value relative
+     to the first address of the range are actually considered.
+   probe: insmod parameter. Initialize this list with SENSORS_I2C_END values.
+     A list of pairs. The first value is a bus number (SENSORS_ISA_BUS for
+     the ISA bus, -1 for any I2C bus), the second is the address. These
+     addresses are also probed, as if they were in the 'normal' list.
+   probe_range: insmod parameter. Initialize this list with SENSORS_I2C_END 
+     values.
+     A list of triples. The first value is a bus number (SENSORS_ISA_BUS for
+     the ISA bus, -1 for any I2C bus), the second and third are addresses. 
+     These form an inclusive range of addresses that are also probed, as
+     if they were in the 'normal' list.
+   ignore: insmod parameter. Initialize this list with SENSORS_I2C_END values.
+     A list of pairs. The first value is a bus number (SENSORS_ISA_BUS for
+     the ISA bus, -1 for any I2C bus), the second is the I2C address. These
+     addresses are never probed. This parameter overrules 'normal' and 
+     'probe', but not the 'force' lists.
+   ignore_range: insmod parameter. Initialize this list with SENSORS_I2C_END 
+      values.
+     A list of triples. The first value is a bus number (SENSORS_ISA_BUS for
+     the ISA bus, -1 for any I2C bus), the second and third are addresses. 
+     These form an inclusive range of I2C addresses that are never probed.
+     This parameter overrules 'normal' and 'probe', but not the 'force' lists.
+   force_data: insmod parameters. A list, ending with an element of which
+     the force field is NULL.
+*/
+struct i2c_address_data {
+	unsigned short *normal_i2c;
+	unsigned short *normal_i2c_range;
+	unsigned int *normal_isa;
+	unsigned int *normal_isa_range;
+	unsigned short *probe;
+	unsigned short *probe_range;
+	unsigned short *ignore;
+	unsigned short *ignore_range;
+	struct i2c_force_data *forces;
+};
+
+/* Internal numbers to terminate lists */
+#define SENSORS_I2C_END 0xfffe
+#define SENSORS_ISA_END 0xfffefffe
+
+/* The numbers to use to set an ISA or I2C bus address */
+#define SENSORS_ISA_BUS 9191
+#define SENSORS_ANY_I2C_BUS 0xffff
+
+/* The length of the option lists */
+#define SENSORS_MAX_OPTS 48
+
+/* Default fill of many variables */
+#define SENSORS_DEFAULTS {SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
+                          SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
+                          SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
+                          SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
+                          SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
+                          SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
+                          SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
+                          SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
+                          SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
+                          SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
+                          SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
+                          SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
+                          SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
+                          SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
+                          SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END, \
+                          SENSORS_I2C_END, SENSORS_I2C_END, SENSORS_I2C_END}
+
+/* This is ugly. We need to evaluate SENSORS_MAX_OPTS before it is 
+   stringified */
+#define SENSORS_MODPARM_AUX1(x) "1-" #x "h"
+#define SENSORS_MODPARM_AUX(x) SENSORS_MODPARM_AUX1(x)
+#define SENSORS_MODPARM SENSORS_MODPARM_AUX(SENSORS_MAX_OPTS)
+
+/* SENSORS_MODULE_PARM creates a module parameter, and puts it in the
+   module header */
+#define SENSORS_MODULE_PARM(var,desc) \
+  static unsigned short var[SENSORS_MAX_OPTS] = SENSORS_DEFAULTS; \
+  MODULE_PARM(var,SENSORS_MODPARM); \
+  MODULE_PARM_DESC(var,desc)
+
+/* SENSORS_MODULE_PARM creates a 'force_*' module parameter, and puts it in
+   the module header */
+#define SENSORS_MODULE_PARM_FORCE(name) \
+  SENSORS_MODULE_PARM(force_ ## name, \
+                      "List of adapter,address pairs which are unquestionably" \
+                      " assumed to contain a `" # name "' chip")
+
+
+/* This defines several insmod variables, and the addr_data structure */
+#define SENSORS_INSMOD \
+  SENSORS_MODULE_PARM(probe, \
+                      "List of adapter,address pairs to scan additionally"); \
+  SENSORS_MODULE_PARM(probe_range, \
+                      "List of adapter,start-addr,end-addr triples to scan " \
+                      "additionally"); \
+  SENSORS_MODULE_PARM(ignore, \
+                      "List of adapter,address pairs not to scan"); \
+  SENSORS_MODULE_PARM(ignore_range, \
+                      "List of adapter,start-addr,end-addr triples not to " \
+                      "scan"); \
+  static struct i2c_address_data addr_data = \
+                                       {normal_i2c, normal_i2c_range, \
+                                        normal_isa, normal_isa_range, \
+                                        probe, probe_range, \
+                                        ignore, ignore_range, \
+                                        forces}
+
+/* The following functions create an enum with the chip names as elements. 
+   The first element of the enum is any_chip. These are the only macros
+   a module will want to use. */
+
+#define SENSORS_INSMOD_0 \
+  enum chips { any_chip }; \
+  SENSORS_MODULE_PARM(force, \
+                      "List of adapter,address pairs to boldly assume " \
+                      "to be present"); \
+  static struct i2c_force_data forces[] = {{force,any_chip},{NULL}}; \
+  SENSORS_INSMOD
+
+#define SENSORS_INSMOD_1(chip1) \
+  enum chips { any_chip, chip1 }; \
+  SENSORS_MODULE_PARM(force, \
+                      "List of adapter,address pairs to boldly assume " \
+                      "to be present"); \
+  SENSORS_MODULE_PARM_FORCE(chip1); \
+  static struct i2c_force_data forces[] = {{force,any_chip},\
+                                                 {force_ ## chip1,chip1}, \
+                                                 {NULL}}; \
+  SENSORS_INSMOD
+
+#define SENSORS_INSMOD_2(chip1,chip2) \
+  enum chips { any_chip, chip1, chip2 }; \
+  SENSORS_MODULE_PARM(force, \
+                      "List of adapter,address pairs to boldly assume " \
+                      "to be present"); \
+  SENSORS_MODULE_PARM_FORCE(chip1); \
+  SENSORS_MODULE_PARM_FORCE(chip2); \
+  static struct i2c_force_data forces[] = {{force,any_chip}, \
+                                                 {force_ ## chip1,chip1}, \
+                                                 {force_ ## chip2,chip2}, \
+                                                 {NULL}}; \
+  SENSORS_INSMOD
+
+#define SENSORS_INSMOD_3(chip1,chip2,chip3) \
+  enum chips { any_chip, chip1, chip2, chip3 }; \
+  SENSORS_MODULE_PARM(force, \
+                      "List of adapter,address pairs to boldly assume " \
+                      "to be present"); \
+  SENSORS_MODULE_PARM_FORCE(chip1); \
+  SENSORS_MODULE_PARM_FORCE(chip2); \
+  SENSORS_MODULE_PARM_FORCE(chip3); \
+  static struct i2c_force_data forces[] = {{force,any_chip}, \
+                                                 {force_ ## chip1,chip1}, \
+                                                 {force_ ## chip2,chip2}, \
+                                                 {force_ ## chip3,chip3}, \
+                                                 {NULL}}; \
+  SENSORS_INSMOD
+
+#define SENSORS_INSMOD_4(chip1,chip2,chip3,chip4) \
+  enum chips { any_chip, chip1, chip2, chip3, chip4 }; \
+  SENSORS_MODULE_PARM(force, \
+                      "List of adapter,address pairs to boldly assume " \
+                      "to be present"); \
+  SENSORS_MODULE_PARM_FORCE(chip1); \
+  SENSORS_MODULE_PARM_FORCE(chip2); \
+  SENSORS_MODULE_PARM_FORCE(chip3); \
+  SENSORS_MODULE_PARM_FORCE(chip4); \
+  static struct i2c_force_data forces[] = {{force,any_chip}, \
+                                                 {force_ ## chip1,chip1}, \
+                                                 {force_ ## chip2,chip2}, \
+                                                 {force_ ## chip3,chip3}, \
+                                                 {force_ ## chip4,chip4}, \
+                                                 {NULL}}; \
+  SENSORS_INSMOD
+
+#define SENSORS_INSMOD_5(chip1,chip2,chip3,chip4,chip5) \
+  enum chips { any_chip, chip1, chip2, chip3, chip4, chip5 }; \
+  SENSORS_MODULE_PARM(force, \
+                      "List of adapter,address pairs to boldly assume " \
+                      "to be present"); \
+  SENSORS_MODULE_PARM_FORCE(chip1); \
+  SENSORS_MODULE_PARM_FORCE(chip2); \
+  SENSORS_MODULE_PARM_FORCE(chip3); \
+  SENSORS_MODULE_PARM_FORCE(chip4); \
+  SENSORS_MODULE_PARM_FORCE(chip5); \
+  static struct i2c_force_data forces[] = {{force,any_chip}, \
+                                                 {force_ ## chip1,chip1}, \
+                                                 {force_ ## chip2,chip2}, \
+                                                 {force_ ## chip3,chip3}, \
+                                                 {force_ ## chip4,chip4}, \
+                                                 {force_ ## chip5,chip5}, \
+                                                 {NULL}}; \
+  SENSORS_INSMOD
+
+#define SENSORS_INSMOD_6(chip1,chip2,chip3,chip4,chip5,chip6) \
+  enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6 }; \
+  SENSORS_MODULE_PARM(force, \
+                      "List of adapter,address pairs to boldly assume " \
+                      "to be present"); \
+  SENSORS_MODULE_PARM_FORCE(chip1); \
+  SENSORS_MODULE_PARM_FORCE(chip2); \
+  SENSORS_MODULE_PARM_FORCE(chip3); \
+  SENSORS_MODULE_PARM_FORCE(chip4); \
+  SENSORS_MODULE_PARM_FORCE(chip5); \
+  SENSORS_MODULE_PARM_FORCE(chip6); \
+  static struct i2c_force_data forces[] = {{force,any_chip}, \
+                                                 {force_ ## chip1,chip1}, \
+                                                 {force_ ## chip2,chip2}, \
+                                                 {force_ ## chip3,chip3}, \
+                                                 {force_ ## chip4,chip4}, \
+                                                 {force_ ## chip5,chip5}, \
+                                                 {force_ ## chip6,chip6}, \
+                                                 {NULL}}; \
+  SENSORS_INSMOD
+
+#define SENSORS_INSMOD_7(chip1,chip2,chip3,chip4,chip5,chip6,chip7) \
+  enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6, chip7 }; \
+  SENSORS_MODULE_PARM(force, \
+                      "List of adapter,address pairs to boldly assume " \
+                      "to be present"); \
+  SENSORS_MODULE_PARM_FORCE(chip1); \
+  SENSORS_MODULE_PARM_FORCE(chip2); \
+  SENSORS_MODULE_PARM_FORCE(chip3); \
+  SENSORS_MODULE_PARM_FORCE(chip4); \
+  SENSORS_MODULE_PARM_FORCE(chip5); \
+  SENSORS_MODULE_PARM_FORCE(chip6); \
+  SENSORS_MODULE_PARM_FORCE(chip7); \
+  static struct i2c_force_data forces[] = {{force,any_chip}, \
+                                                 {force_ ## chip1,chip1}, \
+                                                 {force_ ## chip2,chip2}, \
+                                                 {force_ ## chip3,chip3}, \
+                                                 {force_ ## chip4,chip4}, \
+                                                 {force_ ## chip5,chip5}, \
+                                                 {force_ ## chip6,chip6}, \
+                                                 {force_ ## chip7,chip7}, \
+                                                 {NULL}}; \
+  SENSORS_INSMOD
+
+typedef int i2c_found_addr_proc(struct i2c_adapter *adapter,
+				    int addr, unsigned short flags,
+				    int kind);
+
+/* Detect function. It iterates over all possible addresses itself. For
+   SMBus addresses, it will only call found_proc if some client is connected
+   to the SMBus (unless a 'force' matched); for ISA detections, this is not
+   done. */
+extern int i2c_detect(struct i2c_adapter *adapter,
+			  struct i2c_address_data *address_data,
+			  i2c_found_addr_proc * found_proc);
+
+
+/* This macro is used to scale user-input to sensible values in almost all
+   chip drivers. */
+extern inline int SENSORS_LIMIT(long value, long low, long high)
+{
+	if (value < low)
+		return low;
+	else if (value > high)
+		return high;
+	else
+		return value;
+}
+
+#endif				/* def __KERNEL__ */
+
+
+/* The maximum length of the prefix */
+#define SENSORS_PREFIX_MAX 20
+
+/* Sysctl IDs */
+#ifdef DEV_HWMON
+#define DEV_SENSORS DEV_HWMON
+#else				/* ndef DEV_HWMOM */
+#define DEV_SENSORS 2		/* The id of the lm_sensors directory within the
+				   dev table */
+#endif				/* def DEV_HWMON */
+
+#define SENSORS_CHIPS 1
+struct i2c_chips_data {
+	int sysctl_id;
+	char name[SENSORS_PREFIX_MAX + 13];
+};
+
+#endif				/* def SENSORS_SENSORS_H */
+