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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-07-01 09:57:25 +0200
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-07-01 09:57:25 +0200
commit24a72acac155576d630cf4304fa9cefb9b62ea1f (patch)
tree84d09427b319c613512316c658a3f6d6d8fe3dd1 /fs/xfs/xfs_btree.c
parentpowerpc/pseries: Inform the hypervisor we are using EBB regs (diff)
parentLinux 3.10 (diff)
downloadlinux-24a72acac155576d630cf4304fa9cefb9b62ea1f.tar.xz
linux-24a72acac155576d630cf4304fa9cefb9b62ea1f.zip
Merge tag 'v3.10' into next
Merge 3.10 in order to get some of the last minute powerpc changes, resolve conflicts and add additional fixes on top of them.
Diffstat (limited to 'fs/xfs/xfs_btree.c')
-rw-r--r--fs/xfs/xfs_btree.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c
index 8804b8a3c310..0903960410a2 100644
--- a/fs/xfs/xfs_btree.c
+++ b/fs/xfs/xfs_btree.c
@@ -2544,7 +2544,17 @@ xfs_btree_new_iroot(
if (error)
goto error0;
+ /*
+ * we can't just memcpy() the root in for CRC enabled btree blocks.
+ * In that case have to also ensure the blkno remains correct
+ */
memcpy(cblock, block, xfs_btree_block_len(cur));
+ if (cur->bc_flags & XFS_BTREE_CRC_BLOCKS) {
+ if (cur->bc_flags & XFS_BTREE_LONG_PTRS)
+ cblock->bb_u.l.bb_blkno = cpu_to_be64(cbp->b_bn);
+ else
+ cblock->bb_u.s.bb_blkno = cpu_to_be64(cbp->b_bn);
+ }
be16_add_cpu(&block->bb_level, 1);
xfs_btree_set_numrecs(block, 1);