Quoting David Sterba (2013-11-14 08:30:45)
> A way of disabling features that are on by default in case it's not
> wanted, eg. due to lack of support in the used kernel.
>
> Signed-off-by: David Sterba <dsterba@xxxxxxx>
> ---
> mkfs.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/mkfs.c b/mkfs.c
> index cd0af9ef8b4f..f825e1b6bc2d 100644
> --- a/mkfs.c
> +++ b/mkfs.c
> @@ -1168,7 +1168,11 @@ static int parse_one_fs_feature(const char *name, u64 *flags)
> int found = 0;
>
> for (i = 0; i < ARRAY_SIZE(mkfs_features); i++) {
> - if (!strcmp(mkfs_features[i].name, name)) {
> + if (name[0] == '^' &&
> + !strcmp(mkfs_features[i].name, name + 1)) {
> + *flags &= ~ mkfs_features[i].flag;
> + found = 1;
> + } else if (!strcmp(mkfs_features[i].name, name)) {
> *flags |= mkfs_features[i].flag;
> found = 1;
> }
Perfect, I was going to do this today so I can enable extrefs.
-chris
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