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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/raid0.c
parenteffe6ee7523aa50d0517bd7da141e112b44d89fa (diff)
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>
Diffstat (limited to 'drivers/md/raid0.c')
-rw-r--r--drivers/md/raid0.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 93347ca7c7a6..56f70c3ad37c 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -29,7 +29,8 @@
#define UNSUPPORTED_MDDEV_FLAGS \
((1L << MD_HAS_JOURNAL) | \
(1L << MD_JOURNAL_CLEAN) | \
- (1L << MD_FAILFAST_SUPPORTED))
+ (1L << MD_FAILFAST_SUPPORTED) |\
+ (1L << MD_HAS_PPL))
static int raid0_congested(struct mddev *mddev, int bits)
{