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 |
|---|---|---|
| ccids | ||
| Kconfig | -rw-r--r-- | 1.7 KB |
| Makefile | -rw-r--r-- | 842 bytes |
| ackvec.c | -rw-r--r-- | 12.4 KB |
| ackvec.h | -rw-r--r-- | 4.7 KB |
| ccid.c | -rw-r--r-- | 5.2 KB |
| ccid.h | -rw-r--r-- | 8.8 KB |
| dccp.h | -rw-r--r-- | 16.7 KB |
| diag.c | -rw-r--r-- | 2.3 KB |
| feat.c | -rw-r--r-- | 47.2 KB |
| feat.h | -rw-r--r-- | 4.6 KB |
| input.c | -rw-r--r-- | 21.6 KB |
| ipv4.c | -rw-r--r-- | 28.5 KB |
| ipv6.c | -rw-r--r-- | 30.5 KB |
| ipv6.h | -rw-r--r-- | 822 bytes |
| minisocks.c | -rw-r--r-- | 7.9 KB |
| options.c | -rw-r--r-- | 17.2 KB |
| output.c | -rw-r--r-- | 20.2 KB |
| probe.c | -rw-r--r-- | 4.9 KB |
| proto.c | -rw-r--r-- | 30.0 KB |
| qpolicy.c | -rw-r--r-- | 3.4 KB |
| sysctl.c | -rw-r--r-- | 2.8 KB |
| timer.c | -rw-r--r-- | 7.5 KB |
Computing file changes ...
