io_uring: place fixed tables under memcg limits

Fixed tables may be large enough, place all of them together with
allocated tags under memcg limits.

Cc: stable@vger.kernel.org
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/b3ac9f5da9821bb59837b5fe25e8ef4be982218c.1629451684.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 9a021fe..c6f1afa 100644 (file)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -7138,14 +7138,14 @@ static void **io_alloc_page_table(size_t size)
        size_t init_size = size;
        void **table;
 
-       table = kcalloc(nr_tables, sizeof(*table), GFP_KERNEL);
+       table = kcalloc(nr_tables, sizeof(*table), GFP_KERNEL_ACCOUNT);
        if (!table)
                return NULL;
 
        for (i = 0; i < nr_tables; i++) {
                unsigned int this_size = min_t(size_t, size, PAGE_SIZE);
 
-               table[i] = kzalloc(this_size, GFP_KERNEL);
+               table[i] = kzalloc(this_size, GFP_KERNEL_ACCOUNT);
                if (!table[i]) {
                        io_free_page_table(table, init_size);
                        return NULL;
@@ -7336,7 +7336,8 @@ fail:
 
 static bool io_alloc_file_tables(struct io_file_table *table, unsigned nr_files)
 {
-       table->files = kvcalloc(nr_files, sizeof(table->files[0]), GFP_KERNEL);
+       table->files = kvcalloc(nr_files, sizeof(table->files[0]),
+                               GFP_KERNEL_ACCOUNT);
        return !!table->files;
 }