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authorMatthew Garrett <mjg@redhat.com>2011-07-21 16:57:55 -0400
committerTony Luck <tony.luck@intel.com>2011-07-22 16:14:39 -0700
commitdee28e72b619b48ec80a9e5509db458dbe66f71f (patch)
tree781ef74fc42193f05877af53fe0787d175181bd7 /Documentation
parentb94fdd077eef5e6cab56836bf62695b497946716 (diff)
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pstore: Allow the user to explicitly choose a backend
pstore only allows one backend to be registered at present, but the system may provide several. Add a parameter to allow the user to choose which backend will be used rather than just relying on load order. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/pstore6
-rw-r--r--Documentation/kernel-parameters.txt2
2 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/pstore b/Documentation/ABI/testing/pstore
index ddf451ee2a08..ff1df4e3b059 100644
--- a/Documentation/ABI/testing/pstore
+++ b/Documentation/ABI/testing/pstore
@@ -39,3 +39,9 @@ Description: Generic interface to platform dependent persistent storage.
multiple) files based on the record size of the underlying
persistent storage until at least this amount is reached.
Default is 10 Kbytes.
+
+ Pstore only supports one backend at a time. If multiple
+ backends are available, the preferred backend may be
+ set by passing the pstore.backend= argument to the kernel at
+ boot time.
+
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index aa47be71df4c..8789d0c9291a 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2151,6 +2151,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
[HW,MOUSE] Controls Logitech smartscroll autorepeat.
0 = disabled, 1 = enabled (default).
+ pstore.backend= Specify the name of the pstore backend to use
+
pt. [PARIDE]
See Documentation/blockdev/paride.txt.