Subject: devmem, x86: fix rename of CONFIG_NONPROMISC_DEVMEM

[pandora-kernel.git] / drivers / char / mem.c

diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index e83623e..b6772d6 100644 (file)
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -26,6 +26,7 @@
 #include <linux/bootmem.h>
 #include <linux/splice.h>
 #include <linux/pfn.h>
+#include <linux/smp_lock.h>
 
 #include <asm/uaccess.h>
 #include <asm/io.h>
@@ -79,7 +80,7 @@ static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t size)
 }
 #endif
 
-#ifdef CONFIG_NONPROMISC_DEVMEM
+#ifdef CONFIG_STRICT_DEVMEM
 static inline int range_is_allowed(unsigned long pfn, unsigned long size)
 {
        u64 from = ((u64)pfn) << PAGE_SHIFT;
@@ -364,6 +365,7 @@ static int mmap_mem(struct file * file, struct vm_area_struct * vma)
        return 0;
 }
 
+#ifdef CONFIG_DEVKMEM
 static int mmap_kmem(struct file * file, struct vm_area_struct * vma)
 {
        unsigned long pfn;
@@ -384,6 +386,7 @@ static int mmap_kmem(struct file * file, struct vm_area_struct * vma)
        vma->vm_pgoff = pfn;
        return mmap_mem(file, vma);
 }
+#endif
 
 #ifdef CONFIG_CRASH_DUMP
 /*
@@ -422,6 +425,7 @@ static ssize_t read_oldmem(struct file *file, char __user *buf,
 extern long vread(char *buf, char *addr, unsigned long count);
 extern long vwrite(char *buf, char *addr, unsigned long count);
 
+#ifdef CONFIG_DEVKMEM
 /*
  * This function reads the *virtual* memory as seen by the kernel.
  */
@@ -626,6 +630,7 @@ static ssize_t write_kmem(struct file * file, const char __user * buf,
        *ppos = p;
        return virtr + wrote;
 }
+#endif
 
 #ifdef CONFIG_DEVPORT
 static ssize_t read_port(struct file * file, char __user * buf,
@@ -803,6 +808,7 @@ static const struct file_operations mem_fops = {
        .get_unmapped_area = get_unmapped_area_mem,
 };
 
+#ifdef CONFIG_DEVKMEM
 static const struct file_operations kmem_fops = {
        .llseek         = memory_lseek,
        .read           = read_kmem,
@@ -811,6 +817,7 @@ static const struct file_operations kmem_fops = {
        .open           = open_kmem,
        .get_unmapped_area = get_unmapped_area_mem,
 };
+#endif
 
 static const struct file_operations null_fops = {
        .llseek         = null_lseek,
@@ -883,17 +890,22 @@ static const struct file_operations kmsg_fops = {
 
 static int memory_open(struct inode * inode, struct file * filp)
 {
+       int ret = 0;
+
+       lock_kernel();
        switch (iminor(inode)) {
                case 1:
                        filp->f_op = &mem_fops;
                        filp->f_mapping->backing_dev_info =
                                &directly_mappable_cdev_bdi;
                        break;
+#ifdef CONFIG_DEVKMEM
                case 2:
                        filp->f_op = &kmem_fops;
                        filp->f_mapping->backing_dev_info =
                                &directly_mappable_cdev_bdi;
                        break;
+#endif
                case 3:
                        filp->f_op = &null_fops;
                        break;
@@ -924,11 +936,13 @@ static int memory_open(struct inode * inode, struct file * filp)
                        break;
 #endif
                default:
+                       unlock_kernel();
                        return -ENXIO;
        }
        if (filp->f_op && filp->f_op->open)
-               return filp->f_op->open(inode,filp);
-       return 0;
+               ret = filp->f_op->open(inode,filp);
+       unlock_kernel();
+       return ret;
 }
 
 static const struct file_operations memory_fops = {
@@ -942,7 +956,9 @@ static const struct {
        const struct file_operations    *fops;
 } devlist[] = { /* list of minor devices */
        {1, "mem",     S_IRUSR | S_IWUSR | S_IRGRP, &mem_fops},
+#ifdef CONFIG_DEVKMEM
        {2, "kmem",    S_IRUSR | S_IWUSR | S_IRGRP, &kmem_fops},
+#endif
        {3, "null",    S_IRUGO | S_IWUGO,           &null_fops},
 #ifdef CONFIG_DEVPORT
        {4, "port",    S_IRUSR | S_IWUSR | S_IRGRP, &port_fops},