Benjamin Berg ef21984653 um: Don't use vfprintf() for os_info()
[ Upstream commit 236f9fe39b02c15fa5530b53e9cca48354394389 ]

The threads allocated inside the kernel have only a single page of
stack. Unfortunately, the vfprintf function in standard glibc may use
too much stack-space, overflowing it.

To make os_info safe to be used by helper threads, use the kernel
vscnprintf function into a smallish buffer and write out the information
to stderr.

Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-02-23 08:42:13 +01:00
..
2022-08-21 15:16:20 +02:00
2020-03-29 23:28:43 +02:00
2020-12-30 11:54:17 +01:00
2024-02-23 08:42:13 +01:00