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authorArtur Paszkiewicz <artur.paszkiewicz@intel.com>2017-03-09 09:59:57 +0100
committerShaohua Li <shli@fb.com>2017-03-16 16:55:53 -0700
commitea0213e0c7cc1c1b52badf27bd7db4f50a67baaa (patch)
treecc45803ce7ac13964e38403e03f9ea06559fa5e0 /drivers/md/raid5.c
parenteffe6ee7523aa50d0517bd7da141e112b44d89fa (diff)
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md: superblock changes for PPL
Include information about PPL location and size into mdp_superblock_1 and copy it to/from rdev. Because PPL is mutually exclusive with bitmap, put it in place of 'bitmap_offset'. Add a new flag MD_FEATURE_PPL for 'feature_map', analogically to MD_FEATURE_BITMAP_OFFSET. Add MD_HAS_PPL to mddev->flags to indicate that PPL is enabled on an array. Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Signed-off-by: Shaohua Li <shli@fb.com>
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