Revision ca64cae96037de16e4af92678814f5d4bf0c1c65 authored by NeilBrown on 21 November 2012, 05:33:40 UTC, committed by NeilBrown on 21 November 2012, 22:14:13 UTC
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>
1 parent ef5b7c6
| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 4.8 KB |
| Makefile | -rw-r--r-- | 392 bytes |
| TODO | -rw-r--r-- | 772 bytes |
| af_ax25.c | -rw-r--r-- | 44.0 KB |
| ax25_addr.c | -rw-r--r-- | 6.0 KB |
| ax25_dev.c | -rw-r--r-- | 4.7 KB |
| ax25_ds_in.c | -rw-r--r-- | 7.1 KB |
| ax25_ds_subr.c | -rw-r--r-- | 5.1 KB |
| ax25_ds_timer.c | -rw-r--r-- | 5.8 KB |
| ax25_iface.c | -rw-r--r-- | 4.9 KB |
| ax25_in.c | -rw-r--r-- | 10.5 KB |
| ax25_ip.c | -rw-r--r-- | 5.3 KB |
| ax25_out.c | -rw-r--r-- | 8.9 KB |
| ax25_route.c | -rw-r--r-- | 11.2 KB |
| ax25_std_in.c | -rw-r--r-- | 11.1 KB |
| ax25_std_subr.c | -rw-r--r-- | 2.3 KB |
| ax25_std_timer.c | -rw-r--r-- | 4.2 KB |
| ax25_subr.c | -rw-r--r-- | 6.9 KB |
| ax25_timer.c | -rw-r--r-- | 5.1 KB |
| ax25_uid.c | -rw-r--r-- | 4.9 KB |
| sysctl_net_ax25.c | -rw-r--r-- | 4.5 KB |
Computing file changes ...
