diff mbox series

[8/9] memcg: accounting for tty_struct objects

Message ID d205d15f-7694-7940-a534-66743f452833@virtuozzo.com (mailing list archive)
State New, archived
Headers show
Series memcg accounting from OpenVZ | expand

Commit Message

Vasily Averin March 9, 2021, 8:04 a.m. UTC 
Objects can be created from memcg-limited tasks
but its misuse may lead to host OOM.

Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
---
 drivers/tty/tty_io.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 74733ec..a3b881b 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -1503,7 +1503,7 @@  void tty_save_termios(struct tty_struct *tty)
 	/* Stash the termios data */
 	tp = tty->driver->termios[idx];
 	if (tp == NULL) {
-		tp = kmalloc(sizeof(*tp), GFP_KERNEL);
+		tp = kmalloc(sizeof(*tp), GFP_KERNEL_ACCOUNT);
 		if (tp == NULL)
 			return;
 		tty->driver->termios[idx] = tp;
@@ -3128,7 +3128,7 @@  struct tty_struct *alloc_tty_struct(struct tty_driver *driver, int idx)
 {
 	struct tty_struct *tty;
 
-	tty = kzalloc(sizeof(*tty), GFP_KERNEL);
+	tty = kzalloc(sizeof(*tty), GFP_KERNEL_ACCOUNT);
 	if (!tty)
 		return NULL;