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| author |   Artur Paszkiewicz <artur.paszkiewicz@intel.com> | 2017-03-09 09:59:57 +0100 |
|---|---|---|
| committer |   Shaohua Li <shli@fb.com> | 2017-03-16 16:55:53 -0700 |
| commit | ea0213e0c7cc1c1b52badf27bd7db4f50a67baaa (patch) | |
| tree | cc45803ce7ac13964e38403e03f9ea06559fa5e0 /drivers/md/raid0.c | |
| parent | md/r5cache: improve recovery with read ahead page pool (diff) | |
| download | linux-dev-ea0213e0c7cc1c1b52badf27bd7db4f50a67baaa.tar.xz linux-dev-ea0213e0c7cc1c1b52badf27bd7db4f50a67baaa.zip | |
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.c | 3 |
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) { |