[PATCH 5.14 003/432] io_uring: place fixed tables under memcg limits
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-09-16 17:21:37
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From: Pavel Begunkov <asml.silence@gmail.com> commit 0bea96f59ba40e63c0ae93ad6a02417b95f22f4d upstream. 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 (local) Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- fs/io_uring.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c@@ -7126,14 +7126,14 @@ static void **io_alloc_page_table(size_t 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;