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| author | NeilBrown <neilb@suse.de> | 2012-11-21 06:33:40 +0100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-11-21 23:14:13 +0100 |
| commit | ca64cae96037de16e4af92678814f5d4bf0c1c65 (patch) | |
| tree | b789332f018682bbab38981d3bd95b8a0129f5e9 /drivers/md/raid10.c | |
| parent | md/raid5: move resolving of reconstruct_state earlier in (diff) | |
| download | linux-ca64cae96037de16e4af92678814f5d4bf0c1c65.tar.xz linux-ca64cae96037de16e4af92678814f5d4bf0c1c65.zip | |
md/raid5: Make sure we clear R5_Discard when discard is finished.
commit 9e44476851e91c86c98eb92b9bc27fb801f89072
MD: raid5 avoid unnecessary zero page for trim
change raid5 to clear R5_Discard when the complete request is
handled rather than when submitting the per-device discard request.
However it did not clear R5_Discard for the parity device.
This means that if the stripe_head was reused before it expired from
the cache, the setting would be wrong and a hang would result.
Also if the R5_Uptodate bit happens to be set, R5_Discard again
won't be cleared. But R5_Uptodate really should be clear at this point.
So make sure R5_Discard is cleared in all cases, and clear
R5_Uptodate when a 'discard' completes.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions