Qiujun Huang 1b0087d5c7 pstore/zone: Use GFP_ATOMIC to allocate zone buffer ... commit 99b3b83785 upstream. There is a case found when triggering a panic_on_oom, pstore fails to dump kmsg. Because psz_kmsg_write_record can't get the new buffer. Handle this by using GFP_ATOMIC to allocate a buffer at lower watermark. Signed-off-by: Qiujun Huang <hqjagain@gmail.com> Fixes: 335426c6dc ("pstore/zone: Provide way to skip "broken" zone for MTD devices") Cc: WeiXiong Liao <gmpy.liaowx@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/CAJRQjofRCF7wjrYmw3D7zd5QZnwHQq+F8U-mJDJ6NZ4bddYdLA@mail.gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-01-04 11:26:28 +01:00
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Kconfig	pstore: Make sure CONFIG_PSTORE_PMSG selects CONFIG_RT_MUTEXES	2022-12-31 13:26:50 +01:00
Makefile	pstore/blk: Introduce backend for block devices	2020-05-30 10:34:03 -07:00
blk.c	pstore/blk: Use "%lu" to format unsigned long	2021-11-21 09:44:19 -08:00
ftrace.c	pstore/ftrace: Allow immediate recording	2021-11-18 10:29:52 -08:00
inode.c	pstore: Add priv field to pstore_record for backend specific use	2022-06-24 20:40:04 +02:00
internal.h	pstore: Move kmsg_bytes default into Kconfig	2020-12-01 12:09:17 -08:00
platform.c	Revert "pstore: migrate to crypto acomp interface"	2022-09-30 08:16:06 -07:00
pmsg.c	pstore: Switch pmsg_lock to an rt_mutex to avoid priority inversion	2022-12-31 13:26:50 +01:00
ram.c	pstore: Properly assign mem_type property	2023-01-04 11:26:28 +01:00
ram_core.c	pstore: Avoid kcore oops by vmap()ing with VM_IOREMAP	2022-12-31 13:25:40 +01:00
zone.c	pstore/zone: Use GFP_ATOMIC to allocate zone buffer	2023-01-04 11:26:28 +01:00