| commit | 1ad88d514b174c63a0e8125fb3ae3b02a92bc323 | |
| author | Mikulas Patocka <mpatocka@redhat.com> | |
| Thu, 12 Aug 2010 03:13:51 +0000 (12 04:13 +0100) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Thu, 26 Aug 2010 23:43:35 +0000 (26 16:43 -0700) | ||
| tree | 15244937488d4b109e5102e37454abe0d082ef18 | treesnapshot (tar.gz zip) |
| parent | 912fd889a516a688b2153df7f5af87e563b40a5c | commitdiff |
dm snapshot: test chunk size against both origin and snapshot
commit c24110450650f17f7d3ba4fbe01f01ac5a115456 upstream.
Validate chunk size against both origin and snapshot sector size
Don't allow chunk size smaller than either origin or snapshot logical
sector size. Reading or writing data not aligned to sector size is not
allowed and causes immediate errors.
This requires us to open the origin before initialising the
exception store and to export dm_snap_origin.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit c24110450650f17f7d3ba4fbe01f01ac5a115456 upstream.
Validate chunk size against both origin and snapshot sector size
Don't allow chunk size smaller than either origin or snapshot logical
sector size. Reading or writing data not aligned to sector size is not
allowed and causes immediate errors.
This requires us to open the origin before initialising the
exception store and to export dm_snap_origin.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| drivers/md/dm-exception-store.c | diffblobblamehistory | |
| drivers/md/dm-exception-store.h | diffblobblamehistory | |
| drivers/md/dm-snap.c | diffblobblamehistory |