Btrfs: don't steal the reserved space from the global reserve if their space type...

[cascardo/linux.git] / fs / btrfs / extent-tree.c

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 5e2c0bf..54e63b2 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -6681,9 +6681,11 @@ try_reserve:
                return block_rsv;
        /*
         * If we couldn't reserve metadata bytes try and use some from
-        * the global reserve.
+        * the global reserve if its space type is the same as the global
+        * reservation.
         */
-       if (block_rsv->type != BTRFS_BLOCK_RSV_GLOBAL) {
+       if (block_rsv->type != BTRFS_BLOCK_RSV_GLOBAL &&
+           block_rsv->space_info == global_rsv->space_info) {
                ret = block_rsv_use_bytes(global_rsv, blocksize);
                if (!ret)
                        return global_rsv;