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| author | Pavel Tatashin <pasha.tatashin@soleen.com> | 2020-05-05 11:45:07 -0400 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2020-05-30 10:34:03 -0700 |
| commit | 3524e688b8ee50b0edc76f0e020727eb6c684dbc (patch) | |
| tree | 6ec9d2329912f3a6d0b4f86c2c99e83a64a679b4 /fs/pstore | |
| parent | fb13cb8a0482105a415e24042209d02a684255e2 (diff) | |
| download | linux-stable-3524e688b8ee50b0edc76f0e020727eb6c684dbc.tar.gz linux-stable-3524e688b8ee50b0edc76f0e020727eb6c684dbc.tar.bz2 linux-stable-3524e688b8ee50b0edc76f0e020727eb6c684dbc.zip | |
pstore/platform: Pass max_reason to kmesg dump
Add a new member to struct pstore_info for passing information about
kmesg dump maximum reason. This allows a finer control of what kmesg
dumps are sent to pstore storage backends.
Those backends that do not explicitly set this field (keeping it equal to
0), get the default behavior: store only Oopses and Panics, or everything
if the printk.always_kmsg_dump boot param is set.
Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Link: https://lore.kernel.org/lkml/20200515184434.8470-5-keescook@chromium.org/
Co-developed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'fs/pstore')
| -rw-r--r-- | fs/pstore/platform.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index 5e6c6022deb9..a9e297eefdff 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -595,8 +595,10 @@ int pstore_register(struct pstore_info *psi) pstore_get_records(0); - if (psi->flags & PSTORE_FLAGS_DMESG) + if (psi->flags & PSTORE_FLAGS_DMESG) { + pstore_dumper.max_reason = psinfo->max_reason; pstore_register_kmsg(); + } if (psi->flags & PSTORE_FLAGS_CONSOLE) pstore_register_console(); if (psi->flags & PSTORE_FLAGS_FTRACE) |