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authorHans van Kranenburg <hans.van.kranenburg@mendix.com>2018-10-04 23:24:42 +0200
committerDavid Sterba <dsterba@suse.com>2018-12-17 14:51:34 +0100
commitb50836edf9fe531c66310071df59eac2d8dfc708 (patch)
tree0556f2f5d3b7ebc9e43831297cf4a1472b0158af /fs/btrfs/volumes.h
parentbtrfs: fix ncopies raid_attr for RAID56 (diff)
downloadlinux-dev-b50836edf9fe531c66310071df59eac2d8dfc708.tar.xz
linux-dev-b50836edf9fe531c66310071df59eac2d8dfc708.zip
btrfs: introduce nparity raid_attr
Instead of hardcoding exceptions for RAID5 and RAID6 in the code, use an nparity field in raid_attr. Signed-off-by: Hans van Kranenburg <hans.van.kranenburg@mendix.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/volumes.h')
-rw-r--r--fs/btrfs/volumes.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index bca18f70650a..40820e0ec5a4 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -331,6 +331,8 @@ struct btrfs_raid_attr {
int tolerated_failures; /* max tolerated fail devs */
int devs_increment; /* ndevs has to be a multiple of this */
int ncopies; /* how many copies to data has */
+ int nparity; /* number of stripes worth of bytes to store
+ * parity information */
int mindev_error; /* error code if min devs requisite is unmet */
const char raid_name[8]; /* name of the raid */
u64 bg_flag; /* block group flag of the raid */