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-rw-r--r--fs/btrfs/ioctl.c5
-rw-r--r--fs/btrfs/volumes.h8
2 files changed, 13 insertions, 0 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 4df0f2b..7375cf2 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -4691,6 +4691,11 @@ locked:
bctl->flags |= BTRFS_BALANCE_TYPE_MASK;
}
+ if (bctl->flags & ~(BTRFS_BALANCE_ARGS_MASK | BTRFS_BALANCE_TYPE_MASK)) {
+ ret = -EINVAL;
+ goto out_bargs;
+ }
+
do_balance:
/*
* Ownership of bctl and mutually_exclusive_operation_running
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 99c208f..b8e64ea 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -381,6 +381,14 @@ struct map_lookup {
#define BTRFS_BALANCE_ARGS_VRANGE (1ULL << 4)
#define BTRFS_BALANCE_ARGS_LIMIT (1ULL << 5)
+#define BTRFS_BALANCE_ARGS_MASK \
+ (BTRFS_BALANCE_ARGS_PROFILES | \
+ BTRFS_BALANCE_ARGS_USAGE | \
+ BTRFS_BALANCE_ARGS_DEVID | \
+ BTRFS_BALANCE_ARGS_DRANGE | \
+ BTRFS_BALANCE_ARGS_VRANGE | \
+ BTRFS_BALANCE_ARGS_LIMIT)
+
/*
* Profile changing flags. When SOFT is set we won't relocate chunk if
* it already has the target profile (even though it may be
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