diff options
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 320d71537359..f46996a95b0c 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7043,6 +7043,13 @@ static int set_bitmap_file(struct mddev *mddev, int fd) if (mddev->bitmap || mddev->bitmap_info.file) return -EEXIST; /* cannot add when bitmap is present */ + + if (!IS_ENABLED(CONFIG_MD_BITMAP_FILE)) { + pr_warn("%s: bitmap files not supported by this kernel\n", + mdname(mddev)); + return -EINVAL; + } + f = fget(fd); if (f == NULL) { |