Commit a5c308d4d1659b1f4833b863394e3e24cdbdfc6e
1 parent
0909dc448c
md/raid5: suspend shouldn't affect read requests.
md allows write to regions on an array to be suspended temporarily. This allows user-space to participate is aspects of reshape. In particular, data can be copied with not risk of a race. We should not be blocking read requests though, so don't. Cc: stable@kernel.org Signed-off-by: NeilBrown <neilb@suse.de>
Showing 1 changed file with 2 additions and 1 deletions Side-by-side Diff
drivers/md/raid5.c
| ... | ... | @@ -3702,7 +3702,8 @@ |
| 3702 | 3702 | /* FIXME what if we get a false positive because these |
| 3703 | 3703 | * are being updated. |
| 3704 | 3704 | */ |
| 3705 | - if (logical_sector >= mddev->suspend_lo && | |
| 3705 | + if (bio_data_dir(bi) == WRITE && | |
| 3706 | + logical_sector >= mddev->suspend_lo && | |
| 3706 | 3707 | logical_sector < mddev->suspend_hi) { |
| 3707 | 3708 | release_stripe(sh); |
| 3708 | 3709 | schedule(); |