linux/fs/pstore
Aleksandr Yashkin 9e5f1c1980 pstore/ram: Write new dumps to start of recycled zones
The ram_core.c routines treat przs as circular buffers. When writing a
new crash dump, the old buffer needs to be cleared so that the new dump
doesn't end up in the wrong place (i.e. at the end).

The solution to this problem is to reset the circular buffer state before
writing a new Oops dump.

Signed-off-by: Aleksandr Yashkin <a.yashkin@inango-systems.com>
Signed-off-by: Nikolay Merinov <n.merinov@inango-systems.com>
Signed-off-by: Ariel Gilman <a.gilman@inango-systems.com>
Link: https://lore.kernel.org/r/20191223133816.28155-1-n.merinov@inango-systems.com
Fixes: 896fc1f0c4 ("pstore/ram: Switch to persistent_ram routines")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
2020-01-02 12:30:50 -08:00
..
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ftrace.c pstore: no need to check return value of debugfs_create functions 2019-07-08 21:04:42 -07:00
inode.c pstore: Fix double-free in pstore_mkfile() failure path 2019-07-08 21:04:42 -07:00
internal.h pstore: Centralize init/exit routines 2018-10-22 07:11:58 -07:00
platform.c pstore: Make pstore_choose_compression() static 2019-10-29 09:43:03 -07:00
pmsg.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00
ram.c pstore/ram: Write new dumps to start of recycled zones 2020-01-02 12:30:50 -08:00
ram_core.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282 2019-06-05 17:36:37 +02:00