aboutsummaryrefslogtreecommitdiff
path: root/arch/um/os-Linux/mem.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/um/os-Linux/mem.c')
-rw-r--r--arch/um/os-Linux/mem.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/um/os-Linux/mem.c b/arch/um/os-Linux/mem.c
index 4203681e508..f1ea169db85 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)
@@ -29,7 +35,8 @@ static void __init find_tempdir(void)
int i;
char *dir = NULL;
- if(tempdir != NULL) return; /* We've already been called */
+ if(tempdir != NULL) /* We've already been called */
+ return;
for(i = 0; dirs[i]; i++){
dir = getenv(dirs[i]);
if((dir != NULL) && (*dir != '\0'))
@@ -83,6 +90,7 @@ 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
@@ -186,7 +194,7 @@ int make_tempfile(const char *template, char **out_tempname, int do_unlink)
} else {
free(tempname);
}
- return(fd);
+ return fd;
out:
free(tempname);
return -1;
@@ -231,7 +239,7 @@ int create_tmp_file(unsigned long long len)
exit(1);
}
- return(fd);
+ return fd;
}
int create_mem_file(unsigned long long len)
@@ -245,7 +253,7 @@ int create_mem_file(unsigned long long len)
errno = -err;
perror("exec_close");
}
- return(fd);
+ return fd;
}