tree aec0586fc3450a91410ce822972a21048113ea33
parent e1a86dbbbd6a77f73c3d099030495fa31f181e2f
author Song Liu <songliubraving@fb.com> 1594072652 -0700
committer Song Liu <songliubraving@fb.com> 1594792891 -0700

md/raid5-cache: clear MD_SB_CHANGE_PENDING before flushing stripes

In recovery, if we process too much data, raid5-cache may set
MD_SB_CHANGE_PENDING, which causes spinning in handle_stripe().
Fix this issue by clearing the bit before flushing data only
stripes. This issue was initially discussed in [1].

[1] https://www.spinics.net/lists/raid/msg64409.html

Signed-off-by: Song Liu <songliubraving@fb.com>