This patch limits the messages when ldisc open faulures happen.
It happens under memory pressure.
Signed-off-by: Akinobu Mita <[email protected]>
drivers/char/tty_io.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
Index: work-shouldfail/drivers/char/tty_io.c
===================================================================
--- work-shouldfail.orig/drivers/char/tty_io.c
+++ work-shouldfail/drivers/char/tty_io.c
@@ -2072,8 +2072,9 @@ fail_no_mem:
/* call the tty release_mem routine to clean out this slot */
release_mem_out:
- printk(KERN_INFO "init_dev: ldisc open failed, "
- "clearing slot %d\n", idx);
+ if (printk_ratelimit())
+ printk(KERN_INFO "init_dev: ldisc open failed, "
+ "clearing slot %d\n", idx);
release_mem(tty, idx);
goto end_init;
}
-
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