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pstore: Allow the user to explicitly choose a backend

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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>
This commit is contained in:
Matthew Garrett
2011-07-21 16:57:55 -04:00
committed by Tony Luck
parent b94fdd077e
commit dee28e72b6
3 changed files with 19 additions and 0 deletions
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Documentation/ABI/testing/pstore
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@@ -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.