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;
}
--
1.8.4.2
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