bitmap_file_open(char *filename, struct supertype **stp, int node_num)
{
int fd;
- struct stat stb;
struct supertype *st = *stp;
fd = open(filename, O_RDONLY|O_DIRECT);
return -1;
}
- if (fstat(fd, &stb) < 0) {
- pr_err("failed to determine bitmap file/device type: %s\n",
- strerror(errno));
- close(fd);
- return -1;
- }
-
- if ((stb.st_mode & S_IFMT) == S_IFBLK) {
+ if (fstat_is_blkdev(fd, filename, NULL)) {
/* block device, so we are probably after an internal bitmap */
if (!st)
st = guess_super(fd);
}
*stp = st;
+ } else {
+ close(fd);
+ return -1;
}
return fd;