diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2016-07-28 00:08:25 +0900 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2016-09-08 15:01:08 -0700 |
| commit | c950fd6f201aea649932898206a850f0a7f25603 (patch) | |
| tree | 37fcfa59b06f9f398a156b7a556c6f61e94285ed /fs/pstore | |
| parent | d5a9bf0b38d2ac85c9a693c7fb851f74fd2a2494 (diff) | |
| download | linux-stable-c950fd6f201aea649932898206a850f0a7f25603.tar.gz linux-stable-c950fd6f201aea649932898206a850f0a7f25603.tar.bz2 linux-stable-c950fd6f201aea649932898206a850f0a7f25603.zip | |
pstore: Split pstore fragile flags
This patch adds new PSTORE_FLAGS for each pstore type so that they can
be enabled separately. This is a preparation for ongoing virtio-pstore
work to support those types flexibly.
The PSTORE_FLAGS_FRAGILE is changed to PSTORE_FLAGS_DMESG to preserve the
original behavior.
Cc: Anton Vorontsov <anton@enomsg.org>
Cc: Colin Cross <ccross@android.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Len Brown <lenb@kernel.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: linux-acpi@vger.kernel.org
Cc: linux-efi@vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
[kees: retained "FRAGILE" for now to make merges easier]
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'fs/pstore')
| -rw-r--r-- | fs/pstore/platform.c | 17 | ||||
| -rw-r--r-- | fs/pstore/ram.c | 2 |
2 files changed, 12 insertions, 7 deletions
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index 16ecca5b72d8..76dd604a0f2c 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -659,13 +659,14 @@ int pstore_register(struct pstore_info *psi) if (pstore_is_mounted()) pstore_get_records(0); - pstore_register_kmsg(); - - if ((psi->flags & PSTORE_FLAGS_FRAGILE) == 0) { + if (psi->flags & PSTORE_FLAGS_DMESG) + pstore_register_kmsg(); + if (psi->flags & PSTORE_FLAGS_CONSOLE) pstore_register_console(); + if (psi->flags & PSTORE_FLAGS_FTRACE) pstore_register_ftrace(); + if (psi->flags & PSTORE_FLAGS_PMSG) pstore_register_pmsg(); - } if (pstore_update_ms >= 0) { pstore_timer.expires = jiffies + @@ -689,12 +690,14 @@ EXPORT_SYMBOL_GPL(pstore_register); void pstore_unregister(struct pstore_info *psi) { - if ((psi->flags & PSTORE_FLAGS_FRAGILE) == 0) { + if (psi->flags & PSTORE_FLAGS_PMSG) pstore_unregister_pmsg(); + if (psi->flags & PSTORE_FLAGS_FTRACE) pstore_unregister_ftrace(); + if (psi->flags & PSTORE_FLAGS_CONSOLE) pstore_unregister_console(); - } - pstore_unregister_kmsg(); + if (psi->flags & PSTORE_FLAGS_DMESG) + pstore_unregister_kmsg(); free_buf_for_compression(); diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c index 2340262a7e97..c2ebf5084977 100644 --- a/fs/pstore/ram.c +++ b/fs/pstore/ram.c @@ -623,6 +623,8 @@ static int ramoops_probe(struct platform_device *pdev) goto fail_clear; } + cxt->pstore.flags = PSTORE_FLAGS_ALL; + err = pstore_register(&cxt->pstore); if (err) { pr_err("registering with pstore failed\n"); |