diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/maple_tree.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/maple_tree.c b/lib/maple_tree.c index 3509e293c84f..baaaa128594c 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -5677,10 +5677,11 @@ EXPORT_SYMBOL_GPL(mas_erase); /** * mas_nomem() - Check if there was an error allocating and do the allocation - * if necessary If there are allocations, then free them. + * if necessary. + * * @mas: The maple state * @gfp: The GFP_FLAGS to use for allocations - * Return: true on allocation, false otherwise. + * Return: False on no memory. True otherwise (partial success as well) */ bool mas_nomem(struct ma_state *mas, gfp_t gfp) __must_hold(mas->tree->ma_lock) @@ -5696,6 +5697,10 @@ bool mas_nomem(struct ma_state *mas, gfp_t gfp) mas_alloc_nodes(mas, gfp); } + /* + * Return false on zero forward progress. Partial allocations are kept + * so the retry path will attempt to get the rest. + */ if (!mas->sheaf && !mas->alloc) return false; |