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| author | majianpeng <majianpeng@gmail.com> | 2013-11-14 15:16:18 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2013-11-19 15:19:18 +1100 |
| commit | 07169fd478ed2fbb3c894d524be9400658f16747 (patch) | |
| tree | 54f3ee7b83d33459ae3a3ff4b6e84cd264979b7d /Documentation/video-output.txt | |
| parent | b364e3d048e49b1d177eb7ee7853e77aa0560464 (diff) | |
| download | linux-07169fd478ed2fbb3c894d524be9400658f16747.tar.bz2 | |
raid1: Replace raise_barrier/lower_barrier with freeze_array/unfreeze_array when reconfiguring the array.
We used to use raise_barrier to suspend normal IO while we reconfigure
the array. However raise_barrier will soon only suspend some normal
IO, not all. So we need something else.
Change it to use freeze_array.
But freeze_array not only suspends normal io, it also suspends
resync io.
For the place where call raise_barrier for reconfigure, it isn't a
problem.
Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'Documentation/video-output.txt')
0 files changed, 0 insertions, 0 deletions