From ef67f448c725f8ebc02660067e37911bd6dc8e4c Mon Sep 17 00:00:00 2001 From: Qu Wenruo Date: Fri, 30 Sep 2016 13:04:56 +0800 Subject: btrfs-progs: raid56: Introduce new function to calculate raid5 parity or data stripe Introduce new function raid5_gen_result() to calculate parity or data stripe. Signed-off-by: Qu Wenruo Signed-off-by: David Sterba --- disk-io.h | 1 + 1 file changed, 1 insertion(+) (limited to 'disk-io.h') diff --git a/disk-io.h b/disk-io.h index d4a0e7fc..1c8387e7 100644 --- a/disk-io.h +++ b/disk-io.h @@ -199,5 +199,6 @@ int write_and_map_eb(struct btrfs_trans_handle *trans, struct btrfs_root *root, /* raid56.c */ void raid6_gen_syndrome(int disks, size_t bytes, void **ptrs); +int raid5_gen_result(int nr_devs, size_t stripe_len, int dest, void **data); #endif -- cgit v1.2.3