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| author | Qiujun Huang <hqjagain@gmail.com> | 2022-09-04 23:17:13 +0800 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2022-10-17 13:14:10 -0700 |
| commit | 99b3b837855b987563bcfb397cf9ddd88262814b (patch) | |
| tree | bc4e3256371cfb06ceba597c28a2e8b61048d512 /fs/pstore/ram.c | |
| parent | 9abf2313adc1ca1b6180c508c25f22f9395cc780 (diff) | |
pstore/zone: Use GFP_ATOMIC to allocate zone buffer
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: 335426c6dcdd ("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
Diffstat (limited to 'fs/pstore/ram.c')
0 files changed, 0 insertions, 0 deletions