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authorJeff Dike <jdike@addtoit.com>2007-02-10 01:44:18 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-11 10:51:23 -0800
commit6bf79482f3288e19697d08c456b0bd6b1755d467 (patch)
treead7c1f9a18e5738175d2d8daeb65e099b6a50b02 /arch
parentb8831a1d2c78c03b8193ab3acf56664fa3457265 (diff)
downloadop-kernel-dev-6bf79482f3288e19697d08c456b0bd6b1755d467.zip
op-kernel-dev-6bf79482f3288e19697d08c456b0bd6b1755d467.tar.gz
[PATCH] uml: locking comments in memory and tempfile code
Locking comments and emacs comment removal in the low-level memory and temp file code. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/um/include/tempfile.h10
-rw-r--r--arch/um/kernel/mem.c3
-rw-r--r--arch/um/os-Linux/mem.c7
3 files changed, 9 insertions, 11 deletions
diff --git a/arch/um/include/tempfile.h b/arch/um/include/tempfile.h
index e36d9e0..d441eac 100644
--- a/arch/um/include/tempfile.h
+++ b/arch/um/include/tempfile.h
@@ -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:
- */
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index d1480ff..e85d65d 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -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;
diff --git a/arch/um/os-Linux/mem.c b/arch/um/os-Linux/mem.c
index 4203681..82b8745 100644
--- a/arch/um/os-Linux/mem.c
+++ b/arch/um/os-Linux/mem.c
@@ -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 size, char c)
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
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