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authorChip Coldwell <coldwell@redhat.com>2009-02-16 13:11:56 +0100
committerJens Axboe <jens.axboe@oracle.com>2009-02-18 10:32:01 +0100
commit82eb03cfd862a65363fa2826de0dbd5474cfe5e2 (patch)
treee92ab2b93e73d01395cbf88648a8e7ebc841a17b /fs/buffer.c
parentc8cbec6bdf6329279fd14696020f6b59d1d3124d (diff)
cciss: PCI power management reset for kexec
The kexec kernel resets the CCISS hardware in three steps: 1. Use PCI power management states to reset the controller in the kexec kernel. 2. Clear the MSI/MSI-X bits in PCI configuration space so that MSI initialization in the kexec kernel doesn't fail. 3. Use the CCISS "No-op" message to determine when the controller firmware has recovered from the PCI PM reset. [akpm@linux-foundation.org: cleanups] Signed-off-by: Mike Miller <mike.miller@hp.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'fs/buffer.c')
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