Messages in this thread | | | Subject | [PATCH 0/5] pstore: ramoops: support multiple pmsg instances | From | Hiraku Toyooka <> | Date | Thu, 05 Nov 2015 11:36:44 +0900 |
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The following series implements multiple pmsg. This feature allows userspace program to control individual content aging or priority.
If a pstore backend module(e.g. ramoops) requires the multiple pmsg instances when registering itself to pstore, multiple /dev/pmsg[ID] are created. Writes to each /dev/pmsg[ID] are isolated each other. After reboot, the contents are available in /sys/fs/pstore/pmsg-[backend]-[ID].
In addition, we add multiple pmsg support for ramoops. We can specify multiple pmsg area size by its module parameter as follows.
pmsg_size=0x1000,0x2000,...
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Hiraku Toyooka (5): ramoops: use persistent_ram_free() instead of kfree() for freeing prz ramoops: introduce generic init/free functions for prz pstore: support multiple pmsg instances ramoops: support multiple pmsg instances selftests/pstore: add testcases for multiple pmsg instances
Documentation/ramoops.txt | 22 ++ fs/pstore/pmsg.c | 20 ++ fs/pstore/ram.c | 213 +++++++++++++++----- include/linux/pstore.h | 1 include/linux/pstore_ram.h | 8 + tools/testing/selftests/pstore/common_tests | 21 ++ .../selftests/pstore/pstore_post_reboot_tests | 27 +-- tools/testing/selftests/pstore/pstore_tests | 16 +- 8 files changed, 257 insertions(+), 71 deletions(-)
-- Hiraku Toyooka
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