From: Stefan Behrens Date: Tue, 6 Nov 2012 13:57:46 +0000 (+0100) Subject: Btrfs: increase BTRFS_MAX_MIRRORS by one for dev replace X-Git-Tag: v3.8-rc7~6^2~63 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=72d7aefccd512b66cd5543e652eae04be12085fc;p=platform%2Fupstream%2Fkernel-adaptation-pc.git Btrfs: increase BTRFS_MAX_MIRRORS by one for dev replace This change of the define is effective in all modes, it is required and used only in the case when a device replace procedure is running. The reason is that during an active device replace procedure, the target device of the copy operation is a mirror for the filesystem data as well that can be used to read data in order to repair read errors on other disks. Signed-off-by: Stefan Behrens Signed-off-by: Chris Mason --- diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 46bd7d5..91ff078 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -48,7 +48,7 @@ struct btrfs_ordered_sum; #define BTRFS_MAGIC "_BHRfS_M" -#define BTRFS_MAX_MIRRORS 2 +#define BTRFS_MAX_MIRRORS 3 #define BTRFS_MAX_LEVEL 8