block: restore support for using swap files

diff --git a/block.c b/block.c
index 5ae0fd01fbeedbdc5aa261a951fb2ea760b6584e..b5bc4941cafe5b363801f363085f6853edabf73b 100644 (file)
--- a/block.c
+++ b/block.c
@@ -910,8 +910,8 @@ static int main_swapon(int argc, char **argv)
                struct stat s;
                int err;
 
-               if (stat(argv[1], &s) || !S_ISBLK(s.st_mode)) {
-                       fprintf(stderr, "%s is not a block device\n", argv[1]);
+               if (stat(argv[1], &s) || (!S_ISBLK(s.st_mode) && !S_ISREG(s.st_mode))) {
+                       fprintf(stderr, "%s is not a block device or file\n", argv[1]);
                        return -1;
                }
                err = swapon(argv[1], 0);
@@ -956,8 +956,8 @@ static int main_swapoff(int argc, char **argv)
                struct stat s;
                int err;
 
-               if (stat(argv[1], &s) || !S_ISBLK(s.st_mode)) {
-                       fprintf(stderr, "%s is not a block device\n", argv[1]);
+               if (stat(argv[1], &s) || (!S_ISBLK(s.st_mode) && !S_ISREG(s.st_mode))) {
+                       fprintf(stderr, "%s is not a block device or file\n", argv[1]);
                        return -1;
                }
                err = swapoff(argv[1]);