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authorTony Luck <tony.luck@intel.com>2010-12-28 14:25:21 -0800
committerTony Luck <tony.luck@intel.com>2010-12-28 14:25:21 -0800
commitca01d6dd2d7a2652000307520777538740efc286 (patch)
treef419325637badb0ef7a3bfa29d520be2f5282220 /fs/pstore/Kconfig
parent90a8a73c06cc32b609a880d48449d7083327e11a (diff)
pstore: new filesystem interface to platform persistent storage
Some platforms have a small amount of non-volatile storage that can be used to store information useful to diagnose the cause of a system crash. This is the generic part of a file system interface that presents information from the crash as a series of files in /dev/pstore. Once the information has been seen, the underlying storage is freed by deleting the files. Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'fs/pstore/Kconfig')
-rw-r--r--fs/pstore/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/pstore/Kconfig b/fs/pstore/Kconfig
new file mode 100644
index 00000000000..867d0ac026c
--- /dev/null
+++ b/fs/pstore/Kconfig
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+config PSTORE
+ bool "Persistant store support"
+ default n
+ help
+ This option enables generic access to platform level
+ persistent storage via "pstore" filesystem that can
+ be mounted as /dev/pstore. Only useful if you have
+ a platform level driver that registers with pstore to
+ provide the data, so you probably should just go say "Y"
+ (or "M") to a platform specific persistent store driver
+ (e.g. ACPI_APEI on X86) which will select this for you.
+ If you don't have a platform persistent store driver,
+ say N.