Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus-1

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6: (9356 commits)
  [media] rc: update for bitop name changes
  fs: simplify iget & friends
  fs: pull inode->i_lock up out of writeback_single_inode
  fs: rename inode_lock to inode_hash_lock
  fs: move i_wb_list out from under inode_lock
  fs: move i_sb_list out from under inode_lock
  fs: remove inode_lock from iput_final and prune_icache
  fs: Lock the inode LRU list separately
  fs: factor inode disposal
  fs: protect inode->i_state with inode->i_lock
  lib, arch: add filter argument to show_mem and fix private implementations
  SLUB: Write to per cpu data when allocating it
  slub: Fix debugobjects with lockless fastpath
  autofs4: Do not potentially dereference NULL pointer returned by fget() in autofs_dev_ioctl_setpipefd()
  autofs4 - remove autofs4_lock
  autofs4 - fix d_manage() return on rcu-walk
  autofs4 - fix autofs4_expire_indirect() traversal
  autofs4 - fix dentry leak in autofs4_expire_direct()
  autofs4 - reinstate last used update on access
  vfs - check non-mountpoint dentry might block in __follow_mount_rcu()
  ...

NOTE!

This merge commit was created to fix compilation error. The block
tree was merged upstream and removed the 'elv_queue_empty()'
function which the new 'mtdswap' driver is using. So a simple
merge of the mtd tree with upstream does not compile. And the
mtd tree has already be published, so re-basing it is not an option.

To fix this unfortunate situation, I had to merge upstream into the
mtd-2.6.git tree without committing, put the fixup patch on top of
this, and then commit this. The result is that we do not have commits
which do not compile.

In other words, this merge commit "merges" 3 things: the MTD tree, the
upstream tree, and the fixup patch.

1 files changed, 52 insertions, 9 deletions

diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index b335acb43be..75ca78f3a8c 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -7,6 +7,7 @@
  * Copyright (C) 2008 Jason Baron <jbaron@redhat.com>
  * By Greg Banks <gnb@melbourne.sgi.com>
  * Copyright (c) 2008 Silicon Graphics Inc.  All Rights Reserved.
+ * Copyright (C) 2011 Bart Van Assche.  All Rights Reserved.
  */
 
 #include <linux/kernel.h>
@@ -27,6 +28,8 @@
 #include <linux/debugfs.h>
 #include <linux/slab.h>
 #include <linux/jump_label.h>
+#include <linux/hardirq.h>
+#include <linux/sched.h>
 
 extern struct _ddebug __start___verbose[];
 extern struct _ddebug __stop___verbose[];
@@ -63,15 +66,25 @@ static inline const char *basename(const char *path)
 	return tail ? tail+1 : path;
 }
 
+static struct { unsigned flag:8; char opt_char; } opt_array[] = {
+	{ _DPRINTK_FLAGS_PRINT, 'p' },
+	{ _DPRINTK_FLAGS_INCL_MODNAME, 'm' },
+	{ _DPRINTK_FLAGS_INCL_FUNCNAME, 'f' },
+	{ _DPRINTK_FLAGS_INCL_LINENO, 'l' },
+	{ _DPRINTK_FLAGS_INCL_TID, 't' },
+};
+
 /* format a string into buf[] which describes the _ddebug's flags */
 static char *ddebug_describe_flags(struct _ddebug *dp, char *buf,
 				    size_t maxlen)
 {
 	char *p = buf;
+	int i;
 
 	BUG_ON(maxlen < 4);
-	if (dp->flags & _DPRINTK_FLAGS_PRINT)
-		*p++ = 'p';
+	for (i = 0; i < ARRAY_SIZE(opt_array); ++i)
+		if (dp->flags & opt_array[i].flag)
+			*p++ = opt_array[i].opt_char;
 	if (p == buf)
 		*p++ = '-';
 	*p = '\0';
@@ -343,7 +356,7 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
 			       unsigned int *maskp)
 {
 	unsigned flags = 0;
-	int op = '=';
+	int op = '=', i;
 
 	switch (*str) {
 	case '+':
@@ -358,13 +371,14 @@ static int ddebug_parse_flags(const char *str, unsigned int *flagsp,
 		printk(KERN_INFO "%s: op='%c'\n", __func__, op);
 
 	for ( ; *str ; ++str) {
-		switch (*str) {
-		case 'p':
-			flags |= _DPRINTK_FLAGS_PRINT;
-			break;
-		default:
-			return -EINVAL;
+		for (i = ARRAY_SIZE(opt_array) - 1; i >= 0; i--) {
+			if (*str == opt_array[i].opt_char) {
+				flags |= opt_array[i].flag;
+				break;
+			}
 		}
+		if (i < 0)
+			return -EINVAL;
 	}
 	if (flags == 0)
 		return -EINVAL;
@@ -413,6 +427,35 @@ static int ddebug_exec_query(char *query_string)
 	return 0;
 }
 
+int __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...)
+{
+	va_list args;
+	int res;
+
+	BUG_ON(!descriptor);
+	BUG_ON(!fmt);
+
+	va_start(args, fmt);
+	res = printk(KERN_DEBUG);
+	if (descriptor->flags & _DPRINTK_FLAGS_INCL_TID) {
+		if (in_interrupt())
+			res += printk(KERN_CONT "<intr> ");
+		else
+			res += printk(KERN_CONT "[%d] ", task_pid_vnr(current));
+	}
+	if (descriptor->flags & _DPRINTK_FLAGS_INCL_MODNAME)
+		res += printk(KERN_CONT "%s:", descriptor->modname);
+	if (descriptor->flags & _DPRINTK_FLAGS_INCL_FUNCNAME)
+		res += printk(KERN_CONT "%s:", descriptor->function);
+	if (descriptor->flags & _DPRINTK_FLAGS_INCL_LINENO)
+		res += printk(KERN_CONT "%d ", descriptor->lineno);
+	res += vprintk(fmt, args);
+	va_end(args);
+
+	return res;
+}
+EXPORT_SYMBOL(__dynamic_pr_debug);
+
 static __initdata char ddebug_setup_string[1024];
 static __init int ddebug_setup_query(char *str)
 {