Sorry about that, the discard ioctl doesn't actually work unless you open the file with write capabilities... Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx> --- diff --git a/misc/mke2fs.c b/misc/mke2fs.c index 94b4c81..0aa31d8 100644 --- a/misc/mke2fs.c +++ b/misc/mke2fs.c @@ -1877,7 +1877,7 @@ static void mke2fs_discard_blocks(ext2_filsys fs) range[0] = 0; range[1] = blocks * blocksize; - fd = open64(fs->device_name, O_RDONLY); + fd = open64(fs->device_name, O_RDWR); /* * We don't care about whether the ioctl succeeds; it's only an -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
