From 0bea96f59ba40e63c0ae93ad6a02417b95f22f4d Mon Sep 17 00:00:00 2001
From: Pavel Begunkov <asml.silence@gmail.com>
Date: Fri, 20 Aug 2021 10:36:36 +0100
Subject: [PATCH] io_uring: place fixed tables under memcg limits
Git-commit: 0bea96f59ba40e63c0ae93ad6a02417b95f22f4d
Patch-mainline: v5.15-rc1
References: bsc#1205205
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>
Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>
---
fs/io_uring.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 9a021fe6c461..c6f1afa5ec04 100644
--- 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 @@ static int io_rsrc_data_alloc(struct io_ring_ctx *ctx, rsrc_put_fn *do_put,
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;
}
--
2.35.3