Joe Thornber b0dc3c8bc1 dm btree: add ref counting ops for the leaves of top level btrees ... When using nested btrees, the top leaves of the top levels contain block addresses for the root of the next tree down. If we shadow a shared leaf node the leaf values (sub tree roots) should be incremented accordingly. This is only an issue if there is metadata sharing in the top levels. Which only occurs if metadata snapshots are being used (as is possible with dm-thinp). And could result in a block from the thinp metadata snap being reused early, thus corrupting the thinp metadata snap. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org		2015-08-12 10:50:37 -04:00
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dm-array.c
dm-array.h
dm-bitset.c
dm-bitset.h
dm-block-manager.c
dm-block-manager.h
dm-btree-internal.h	dm btree: add ref counting ops for the leaves of top level btrees	2015-08-12 10:50:37 -04:00
dm-btree-remove.c	dm btree: add ref counting ops for the leaves of top level btrees	2015-08-12 10:50:37 -04:00
dm-btree-spine.c	dm btree: add ref counting ops for the leaves of top level btrees	2015-08-12 10:50:37 -04:00
dm-btree.c	dm btree: add ref counting ops for the leaves of top level btrees	2015-08-12 10:50:37 -04:00
dm-btree.h
dm-persistent-data-internal.h
dm-space-map-common.c
dm-space-map-common.h
dm-space-map-disk.c
dm-space-map-disk.h
dm-space-map-metadata.c
dm-space-map-metadata.h
dm-space-map.h
dm-transaction-manager.c
dm-transaction-manager.h
Kconfig
Makefile