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Groups > linux.kernel > #1570246
| From | Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@hitachi.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v4 2nd 0/4] pstore: ramoops: support multiple pmsg instances |
| Date | 2017-01-31 03:00 +0100 |
| Message-ID | <t5vTI-2Xq-5@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
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,...
I did check the operation of this feature on CycloneV (socfpga) Helio board.
v4:
Rebase to 4.10-rc5
The following patches have been removed from this series as similar functions
were modified by other commit.
- pstore: Replace four kzalloc() calls by kcalloc() in ramoops_init_przs()
- pstore: Change parameter of ramoops_free_przs()
- pstore: Rename 'przs' to 'dprzs' in struct ramoops_context
- ramoops: Rename ramoops_init_prz() to ramoops_init_dprzs()
v3:
Rebase to v4.8.
Split patch.
merged device_create().
Remove Blank lines.
Update documentiation of DT binding.
Update parsing function of ramoops_pmsg_size, add NULL termination.
Update module parameters for pmsg_size list.
Hiraku Toyooka (2):
pstore: support multiple pmsg instances
selftests/pstore: add testcases for multiple pmsg instances
Nobuhiro Iwamatsu (2):
ramoops: Add __ramoops_init_prz() as generic function
ramoops: support multiple pmsg instances
Documentation/admin-guide/ramoops.rst | 22 ++
.../bindings/reserved-memory/ramoops.txt | 6 +-
fs/pstore/pmsg.c | 23 +-
fs/pstore/ram.c | 286 +++++++++++++++++----
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 | 14 +-
9 files changed, 326 insertions(+), 82 deletions(-)
--
2.11.0
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[PATCH v4 2nd 0/4] pstore: ramoops: support multiple pmsg instances Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@hitachi.com> - 2017-01-31 03:00 +0100
[PATCH v4 2nd 1/4] ramoops: Add __ramoops_init_prz() as generic function Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@hitachi.com> - 2017-01-31 03:00 +0100
Re: [PATCH v4 2nd 1/4] ramoops: Add __ramoops_init_prz() as generic function Mark Salyzyn <salyzyn@android.com> - 2017-02-02 23:20 +0100
RE: [PATCH v4 2nd 1/4] ramoops: Add __ramoops_init_prz() as generic function 岩松信洋 / IWAMATSU，NOBUHIRO <nobuhiro.iwamatsu.kw@hitachi.com> - 2017-02-07 10:00 +0100
Re: [PATCH v4 2nd 1/4] ramoops: Add __ramoops_init_prz() as generic function Mark Salyzyn <salyzyn@android.com> - 2017-02-07 17:10 +0100
[PATCH v4 2nd 4/4] selftests/pstore: add testcases for multiple pmsg instances Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@hitachi.com> - 2017-01-31 03:00 +0100
[PATCH v4 2nd 2/4] pstore: support multiple pmsg instances Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@hitachi.com> - 2017-01-31 03:00 +0100
Re: [PATCH v4 2nd 2/4] pstore: support multiple pmsg instances Kees Cook <keescook@chromium.org> - 2017-02-01 21:30 +0100
RE: [PATCH v4 2nd 2/4] pstore: support multiple pmsg instances 岩松信洋 / IWAMATSU，NOBUHIRO <nobuhiro.iwamatsu.kw@hitachi.com> - 2017-02-07 09:50 +0100
Re: [PATCH v4 2nd 2/4] pstore: support multiple pmsg instances Mark Salyzyn <salyzyn@android.com> - 2017-02-02 23:20 +0100
RE: [PATCH v4 2nd 2/4] pstore: support multiple pmsg instances 岩松信洋 / IWAMATSU，NOBUHIRO <nobuhiro.iwamatsu.kw@hitachi.com> - 2017-02-07 09:50 +0100
[PATCH v4 2nd 3/4] ramoops: support multiple pmsg instances Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@hitachi.com> - 2017-01-31 03:10 +0100
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