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Subject[PATCH 3/7] UML - locking comments in memory and tempfile code
Date
From
Locking comments and emacs comment removal in the low-level memory and
temp file code.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
--
arch/um/include/tempfile.h | 10 ----------
arch/um/kernel/mem.c | 3 ++-
arch/um/os-Linux/mem.c | 7 +++++++
3 files changed, 9 insertions(+), 11 deletions(-)

Index: linux-2.6.18-mm/arch/um/include/tempfile.h
===================================================================
--- linux-2.6.18-mm.orig/arch/um/include/tempfile.h 2007-01-17 12:30:03.000000000 +1100
+++ linux-2.6.18-mm/arch/um/include/tempfile.h 2007-01-17 12:46:52.000000000 +1100
@@ -9,13 +9,3 @@
extern int make_tempfile(const char *template, char **tempname, int do_unlink);

#endif
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
Index: linux-2.6.18-mm/arch/um/os-Linux/mem.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/os-Linux/mem.c 2007-01-17 12:30:03.000000000 +1100
+++ linux-2.6.18-mm/arch/um/os-Linux/mem.c 2007-01-17 12:46:52.000000000 +1100
@@ -20,7 +20,13 @@

#include <sys/param.h>

+/* Modified by which_tmpdir, which is called during early boot */
static char *default_tmpdir = "/tmp";
+
+/*
+ * Modified when creating the physical memory file and when checking
+ * the tmp filesystem for usability, both happening during early boot.
+ */
static char *tempdir = NULL;

static void __init find_tempdir(void)
@@ -83,6 +89,7 @@ static int next(int fd, char *buf, int s
return 1;
}

+/* which_tmpdir is called only during early boot */
static int checked_tmpdir = 0;

/* Look for a tmpfs mounted at /dev/shm. I couldn't find a cleaner
Index: linux-2.6.18-mm/arch/um/kernel/mem.c
===================================================================
--- linux-2.6.18-mm.orig/arch/um/kernel/mem.c 2007-01-17 12:44:39.000000000 +1100
+++ linux-2.6.18-mm/arch/um/kernel/mem.c 2007-01-17 12:47:42.000000000 +1100
@@ -24,8 +24,9 @@
#include "init.h"
#include "kern_constants.h"

-/* Changed during early boot */
+/* allocated in paging_init, zeroed in mem_init, and unchanged thereafter */
unsigned long *empty_zero_page = NULL;
+/* allocated in paging_init and unchanged thereafter */
unsigned long *empty_bad_page = NULL;
pgd_t swapper_pg_dir[PTRS_PER_PGD];
unsigned long long highmem;
-
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