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io_uring: place fixed tables under memcg limits

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commit 0bea96f59b 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
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Pavel Begunkov
2021-09-13 09:31:43 -06:00
committed by Greg Kroah-Hartman
parent a71001a193
commit 3e433e671e
1 changed files with 2 additions and 2 deletions
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4
fs/io_uring.c
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@@ -7126,14 +7126,14 @@ static void **io_alloc_page_table(size_t size)
size_t init_size = size; size_t init_size = size;
void **table; void **table;
table = kcalloc(nr_tables, sizeof(*table), GFP_KERNEL); table = kcalloc(nr_tables, sizeof(*table), GFP_KERNEL_ACCOUNT);
if (!table) if (!table)
return NULL; return NULL;
for (i = 0; i < nr_tables; i++) { for (i = 0; i < nr_tables; i++) {
unsigned int this_size = min_t(size_t, size, PAGE_SIZE); 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]) { if (!table[i]) {
io_free_page_table(table, init_size); io_free_page_table(table, init_size);
return NULL; return NULL;