[PATCH] uml: big memory fixes
A number of fixes to improve behavior when large physical memory sizes
are specified:
- libc files need -D_FILE_OFFSET_BITS=64 because there are unavoidable uses
of non-64 interfaces in libc
- some %d need to be %u
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/um/Makefile b/arch/um/Makefile
index e1ffad2..e55d32e 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -60,7 +60,7 @@
USER_CFLAGS := $(patsubst -I%,,$(CFLAGS))
USER_CFLAGS := $(patsubst -D__KERNEL__,,$(USER_CFLAGS)) $(ARCH_INCLUDE) \
- $(MODE_INCLUDE)
+ $(MODE_INCLUDE) -D_FILE_OFFSET_BITS=64
# -Derrno=kernel_errno - This turns all kernel references to errno into
# kernel_errno to separate them from the libc errno. This allows -fno-common
diff --git a/arch/um/include/mem_user.h b/arch/um/include/mem_user.h
index 9fef412..a1064c5 100644
--- a/arch/um/include/mem_user.h
+++ b/arch/um/include/mem_user.h
@@ -57,7 +57,7 @@
unsigned long highmem);
extern unsigned long get_vm(unsigned long len);
extern void setup_physmem(unsigned long start, unsigned long usable,
- unsigned long len, unsigned long highmem);
+ unsigned long len, unsigned long long highmem);
extern void add_iomem(char *name, int fd, unsigned long size);
extern unsigned long phys_offset(unsigned long phys);
extern void unmap_physmem(void);
diff --git a/arch/um/include/os.h b/arch/um/include/os.h
index 112d728..2cccfa5 100644
--- a/arch/um/include/os.h
+++ b/arch/um/include/os.h
@@ -167,7 +167,7 @@
#endif
/* mem.c */
-extern int create_mem_file(unsigned long len);
+extern int create_mem_file(unsigned long long len);
/* process.c */
extern unsigned long os_process_pc(int pid);
diff --git a/arch/um/kernel/physmem.c b/arch/um/kernel/physmem.c
index ea670fc..f3b583a 100644
--- a/arch/um/kernel/physmem.c
+++ b/arch/um/kernel/physmem.c
@@ -246,7 +246,7 @@
/* Changed during early boot */
unsigned long high_physmem;
-extern unsigned long physmem_size;
+extern unsigned long long physmem_size;
int init_maps(unsigned long physmem, unsigned long iomem, unsigned long highmem)
{
@@ -321,7 +321,7 @@
extern int __syscall_stub_start, __binary_start;
void setup_physmem(unsigned long start, unsigned long reserve_end,
- unsigned long len, unsigned long highmem)
+ unsigned long len, unsigned long long highmem)
{
unsigned long reserve = reserve_end - start;
int pfn = PFN_UP(__pa(reserve_end));
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 93dc782..142a949 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -137,7 +137,7 @@
/* Set in early boot */
static int have_root __initdata = 0;
-long physmem_size = 32 * 1024 * 1024;
+long long physmem_size = 32 * 1024 * 1024;
void set_cmdline(char *cmd)
{
@@ -402,7 +402,7 @@
#ifndef CONFIG_HIGHMEM
highmem = 0;
printf("CONFIG_HIGHMEM not enabled - physical memory shrunk "
- "to %ld bytes\n", physmem_size);
+ "to %lu bytes\n", physmem_size);
#endif
}
@@ -414,8 +414,8 @@
setup_physmem(uml_physmem, uml_reserved, physmem_size, highmem);
if(init_maps(physmem_size, iomem_size, highmem)){
- printf("Failed to allocate mem_map for %ld bytes of physical "
- "memory and %ld bytes of highmem\n", physmem_size,
+ printf("Failed to allocate mem_map for %lu bytes of physical "
+ "memory and %lu bytes of highmem\n", physmem_size,
highmem);
exit(1);
}
@@ -426,7 +426,7 @@
end_vm = start_vm + virtmem_size;
if(virtmem_size < physmem_size)
- printf("Kernel virtual memory size shrunk to %ld bytes\n",
+ printf("Kernel virtual memory size shrunk to %lu bytes\n",
virtmem_size);
uml_postsetup();
diff --git a/arch/um/os-Linux/mem.c b/arch/um/os-Linux/mem.c
index 8e71eda..9d7d69a 100644
--- a/arch/um/os-Linux/mem.c
+++ b/arch/um/os-Linux/mem.c
@@ -88,7 +88,7 @@
* This proc is used in start_up.c
* So it isn't 'static'.
*/
-int create_tmp_file(unsigned long len)
+int create_tmp_file(unsigned long long len)
{
int fd, err;
char zero;
@@ -121,7 +121,7 @@
return(fd);
}
-static int create_anon_file(unsigned long len)
+static int create_anon_file(unsigned long long len)
{
void *addr;
int fd;
@@ -144,7 +144,7 @@
extern int have_devanon;
-int create_mem_file(unsigned long len)
+int create_mem_file(unsigned long long len)
{
int err, fd;
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index 553a09c..37517d4 100644
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -296,7 +296,7 @@
check_sysemu();
}
-extern int create_tmp_file(unsigned long len);
+extern int create_tmp_file(unsigned long long len);
static void check_tmpexec(void)
{
