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authorAl Viro <viro@zeniv.linux.org.uk>2012-04-13 11:49:04 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-27 09:51:17 -0700
commit025a55c8acd5b796af80305a800b343bb51c8f0c (patch)
treea4682095bc5e90d64056c0d1f7f12b45679be577
parent5479e78788760d38de644620c3331a4ca576a4f5 (diff)
btrfs: btrfs_root_readonly() broken on big-endian
commit 6ed3cf2cdfce4c9f1d73171bd3f27d9cb77b734e upstream. ->root_flags is __le64 and all accesses to it go through the helpers that do proper conversions. Except for btrfs_root_readonly(), which checks bit 0 as in host-endian... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Chris Mason <chris.mason@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--fs/btrfs/ctree.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 3b859a3e6a0e..66179bcb16f6 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1972,7 +1972,7 @@ BTRFS_SETGET_STACK_FUNCS(root_last_snapshot, struct btrfs_root_item,
static inline bool btrfs_root_readonly(struct btrfs_root *root)
{
- return root->root_item.flags & BTRFS_ROOT_SUBVOL_RDONLY;
+ return (root->root_item.flags & cpu_to_le64(BTRFS_ROOT_SUBVOL_RDONLY)) != 0;
}
/* struct btrfs_super_block */