Fix race in losetup
Retry acquiring a loop device if set_loop failed with EBUSY
Signed-Off-By: Matthias Koenig <mkoenig@xxxxxxx>
Index: util-linux-devel/mount/lomount.c
===================================================================
--- util-linux-devel.orig/mount/lomount.c
+++ util-linux-devel/mount/lomount.c
@@ -558,6 +558,7 @@ main(int argc, char **argv) {
usage();
}
+retry_find_loop:
if (all)
return show_used_loop_devices();
else if (find) {
@@ -591,6 +592,11 @@ main(int argc, char **argv) {
res = set_loop(device, file, off, encryption, pfd, &ro);
if (res == 0 && showdev && find) {
printf("%s\n", device);
+ } else if (res == 2 && find) {
+ if (verbose)
+ printf("stolen loop=%s...trying again\n",
+ device);
+ goto retry_find_loop;
}
}
return res;
-
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