async: Handle kthread_run() return codes.

[safe/jmp/linux-2.6] / kernel / kallsyms.c

diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 2fc2581..7b8b0f2 100644 (file)
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -53,14 +53,6 @@ static inline int is_kernel_inittext(unsigned long addr)
        return 0;
 }
 
-static inline int is_kernel_extratext(unsigned long addr)
-{
-       if (addr >= (unsigned long)_sextratext
-           && addr <= (unsigned long)_eextratext)
-               return 1;
-       return 0;
-}
-
 static inline int is_kernel_text(unsigned long addr)
 {
        if (addr >= (unsigned long)_stext && addr <= (unsigned long)_etext)
@@ -80,8 +72,7 @@ static int is_ksym_addr(unsigned long addr)
        if (all_var)
                return is_kernel(addr);
 
-       return is_kernel_text(addr) || is_kernel_inittext(addr) ||
-               is_kernel_extratext(addr);
+       return is_kernel_text(addr) || is_kernel_inittext(addr);
 }
 
 /* expand a compressed symbol data into the resulting uncompressed string,
@@ -185,7 +176,7 @@ static unsigned long get_symbol_pos(unsigned long addr,
        high = kallsyms_num_syms;
 
        while (high - low > 1) {
-               mid = (low + high) / 2;
+               mid = low + (high - low) / 2;
                if (kallsyms_addresses[mid] <= addr)
                        low = mid;
                else
@@ -233,10 +224,11 @@ static unsigned long get_symbol_pos(unsigned long addr,
 int kallsyms_lookup_size_offset(unsigned long addr, unsigned long *symbolsize,
                                unsigned long *offset)
 {
+       char namebuf[KSYM_NAME_LEN];
        if (is_ksym_addr(addr))
                return !!get_symbol_pos(addr, symbolsize, offset);
 
-       return !!module_address_lookup(addr, symbolsize, offset, NULL);
+       return !!module_address_lookup(addr, symbolsize, offset, NULL, namebuf);
 }
 
 /*
@@ -251,8 +243,6 @@ const char *kallsyms_lookup(unsigned long addr,
                            unsigned long *offset,
                            char **modname, char *namebuf)
 {
-       const char *msym;
-
        namebuf[KSYM_NAME_LEN - 1] = 0;
        namebuf[0] = 0;
 
@@ -268,11 +258,8 @@ const char *kallsyms_lookup(unsigned long addr,
        }
 
        /* see if it's in a module */
-       msym = module_address_lookup(addr, symbolsize, offset, modname);
-       if (msym)
-               return strncpy(namebuf, msym, KSYM_NAME_LEN - 1);
-
-       return NULL;
+       return module_address_lookup(addr, symbolsize, offset, modname,
+                                    namebuf);
 }
 
 int lookup_symbol_name(unsigned long addr, char *symname)
@@ -317,17 +304,24 @@ int sprint_symbol(char *buffer, unsigned long address)
        char *modname;
        const char *name;
        unsigned long offset, size;
-       char namebuf[KSYM_NAME_LEN];
+       int len;
 
-       name = kallsyms_lookup(address, &size, &offset, &modname, namebuf);
+       name = kallsyms_lookup(address, &size, &offset, &modname, buffer);
        if (!name)
                return sprintf(buffer, "0x%lx", address);
 
+       if (name != buffer)
+               strcpy(buffer, name);
+       len = strlen(buffer);
+       buffer += len;
+
        if (modname)
-               return sprintf(buffer, "%s+%#lx/%#lx [%s]", name, offset,
-                               size, modname);
+               len += sprintf(buffer, "+%#lx/%#lx [%s]",
+                                               offset, size, modname);
        else
-               return sprintf(buffer, "%s+%#lx/%#lx", name, offset, size);
+               len += sprintf(buffer, "+%#lx/%#lx", offset, size);
+
+       return len;
 }
 
 /* Look up a kernel symbol and print it to the kernel messages. */
@@ -484,11 +478,7 @@ static const struct file_operations kallsyms_operations = {
 
 static int __init kallsyms_init(void)
 {
-       struct proc_dir_entry *entry;
-
-       entry = create_proc_entry("kallsyms", 0444, NULL);
-       if (entry)
-               entry->proc_fops = &kallsyms_operations;
+       proc_create("kallsyms", 0444, NULL, &kallsyms_operations);
        return 0;
 }
 __initcall(kallsyms_init);