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authorZhao Lei <zhaolei@cn.fujitsu.com>2015-08-19 15:54:15 +0800
committerChris Mason <clm@fb.com>2015-08-31 11:45:48 -0700
commit943c6e9925d90dc80207322b5799d95fb90ffec0 (patch)
tree69a7b06454f007c6788d665274de93708ea3a394 /fs/btrfs/async-thread.h
parent2c4580454fffbf184fdb9292aa19ab1ffc224add (diff)
btrfs: Add raid56 support for updating
num_tolerated_disk_barrier_failures in btrfs_balance Code for updating fs_info->num_tolerated_disk_barrier_failures in btrfs_balance() lacks raid56 support. Reason: Above code was wroten in 2012-08-01, together with btrfs_calc_num_tolerated_disk_barrier_failures()'s first version. Then, btrfs_calc_num_tolerated_disk_barrier_failures() got updated later to support raid56, but code in btrfs_balance() was not updated together. Fix: Merge above similar code to a common function: btrfs_get_num_tolerated_disk_barrier_failures() and make it support both case. It can fix this bug with a bonus of cleanup, and make these code never in above no-sync state from now on. Suggested-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com> Signed-off-by: Chris Mason <clm@fb.com>
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